CN100395205C - Partially hydrolyzed shaped article from hydraulic composition, method for production thereof and method for use thereof - Google Patents
Partially hydrolyzed shaped article from hydraulic composition, method for production thereof and method for use thereof Download PDFInfo
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- CN100395205C CN100395205C CNB2004100070513A CN200410007051A CN100395205C CN 100395205 C CN100395205 C CN 100395205C CN B2004100070513 A CNB2004100070513 A CN B2004100070513A CN 200410007051 A CN200410007051 A CN 200410007051A CN 100395205 C CN100395205 C CN 100395205C
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
- C04B7/40—Dehydrating; Forming, e.g. granulating
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/0277—Hardening promoted by using additional water, e.g. by spraying water on the green concrete element
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0068—Ingredients with a function or property not provided for elsewhere in C04B2103/00
- C04B2103/0075—Anti-dusting agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00077—Partially hardened mortar or concrete mixtures
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Lining And Supports For Tunnels (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
A partially hydrolyzed shaped article from a hydraulic composition, characterized in that it contains an unhydrolyzed portion and retains hydrolyzing activity, and the hydraulic composition has been partially hydrolyzed to such a degree that the shape can be just maintained; a method for producing the article; and a method for using the article. The above partially hydrolyzed shaped article can be further hydrolyzed and hardened by the addition of water to it to such a degree that it exhibits the same performance capabilities as those of a conventional hydrolyzed and hardened article, and can be suitably used for various applications. The above partially hydrolyzed shaped article allows the generation of the dust of a hydraulic composition to be satisfactorily prevented during the distribution and use of the composition, and allows the long term storage thereof and the simplification of the form of the use thereof.
Description
Technical field
The present invention relates to partially hydrated molding, its manufacture method and the using method thereof of hydraulic-composition, particularly relate to various uses at hydraulic-composition, for example, partially hydrated molding, its manufacture method and the using method thereof of the hydraulic-composition that can circulate, use with simple form in crackle packing material, static crushing material, various mortar premix product, various concrete premix product, various filling perforation material and the backfilling material etc.
Background technology
Hydraulic-composition in the past, in the process of circulation generally with himself powder or to pre-mixing wherein gather materials, the state of the mixed powder of various additives etc. is installed in damp proof paper bag, the plastics bag etc. and circulates.
Particularly, the cement material major part circulates with the packed of 20-25kg capacity at present.
The hydraulic-composition that this is packed generally is to take apart to put into stirred vessel behind the bag or stir with in the mixing tank etc., and the water mixing that adds specified amount uses.
The mortar of mixing or concrete injected or be cast in the pre-prepd sandbox, by suitably compacting, for example adjust material separation etc. with oscillatory type vibrator etc. after, place and make its curing.
In recent years, forward miniaturizations such as the circulating form of hydraulic-composition development, but heavier as the bag of the main flow of above-mentioned circulating form, and difficult, it is not too convenient to operate.
The true specific gravity of hydraulic-composition is 2-3, and Bulk Specific Gravity is about 1, needs the volume of the twice of actual weight, thus be difficult to dress up small-sized bag, and also on-the-spot carrying operation will become very heavy manual work.
In addition, when being incorporated in hydraulicity powder in mixing container or the device, can produce a large amount of dust, also undesirable aspect environment.
In addition, even hydraulic-composition is contained in the bag with moisture resistance, also has high reactivity for airborne moisture and moisture.Therefore, present storage life maximum is also with regard to about about 6 months.
After using hydraulic-composition,, not only waste resource but also can produce waste producing the empty bag that contains hydraulic-composition in large quantities.Particularly, the bag of enclosing hydraulic-composition such as cement is difficult to burning, burning disposal difficulty.
In addition, repaired reinforcement as concrete crackle in the past, usually use following method: at first clean crackle around and remove inclusion, width according to crackle will be cut into the V font with utensils such as cutters around the crackle afterwards, seal with resene sealing agent etc. then, inject crackle material based on hydraulic-composition.
But at this moment, owing to need concrete cutting cutter and sealing agent injection device and inject with special implements such as pumps, unit scale is big, and needs special-purpose device.
In addition, though former side is more outstanding from the viewpoint of mended crack, the color of repairing the position is often different with former main body, therefore can not be satisfactory from the angle attractive in appearance of object.
In addition, for example, when being used to intercept water material, be with hydraulic-composition in rubber container made etc. promptly with the water mix after, the position that leaks fixed obtains the effect that intercepts water by press this mixing material with hand push with the method that makes it to be rubbed into, but the non-constant of the operating efficiency of this method.
Also have, when being used for the static crushing material, hydraulic-composition with after water mixes, is cast in the rock of holing in advance, the concrete hole,, and obtain crushing effect thus afterwards along with the powerful bulging force of hydration generation.
Generally, in water when broken, usually the method for utilizing is as follows: the proportion that has mixed the slurry of static breaking agent and water is more than 2, heavier than water, so in the boring that this slurry is flow under water, then will replace with water, thereby this slurry can be filled in the boring owing to difference in specific gravity.
But, even the proportion of this slurry more than 2, the operation that in water aqueous material is cast in the hole also is difficult to finish.
In addition, when operating under water, the flowing of water, trend can make slurry produce diffusion, and this slurry also shows strong basicity, therefore consider to the influence of ecosystem on every side, think also undesirable aspect environment.
As other method, also can implement static breaking agent is filled in the pouch, directly it is filled in the method in the boring then.This method is to supply with the required water of static breaking agent hydration expansion by the cloth bag of filling.
This method can prevent the diffusion of static breaking agent, but very difficult enforcement of operation and efficient that bag is inserted in the underwater drilling densely are low, and fill described bag along the shape in the hole owing to differ surely tightly, therefore in the hole, can produce unnecessary space.
In addition, crab-bolt is the general utility tool that often uses in the concrete workses such as sandbox maintenance when concrete construction in the hole, in most cases withdraws from when construction finishes, after withdrawing from, usually in the residual many vestiges of concrete surface, the i.e. hole of the about 6-20mm of diameter, about deeply 100mm.
If vestige is placed like this, then can damage attractive in appearance, so afterwards it was filled usually, but in bridge construction for example, its vestige number is also many, after the operation filled up very time-consuming.
Also having, in filling up after this, is to fill up cement, sand, an amount of water and repair and use the premix mortar material, the construction of filling up after carrying out by operation by hand at present.
In view of the above problems, as making hydraulic-composition powder forming solidified method, in No. the 2514668th, special permission, disclose a kind of by mixing with the 5-95 weight part by at least a hydraulic-composition of forming, 5-95 weight part unslaked lime or magnesian lime in cement, slag, the gypsum or its mixture and with respect to the broken auxiliary agent of the 0.5-1.5 weight % of above-mentioned hydraulic-composition, and pressurize, thereby be configured as blocky molding.
Yet though contain hydraulic-composition in this molding, molding is just by pressurizeing and pressing hard raw material powder to make, and is firm inadequately, as circulating form, as type of service, all can not address the above problem fully.
Summary of the invention
The partially hydrated molding that the purpose of this invention is to provide hydraulic-composition, hydraulic-composition powder when this partially hydrated molding can address the above problem and can fully prevent by circulation, use produces dust, simultaneously can prolonged preservation, use-pattern is also simpler.
In addition, provide can be with high-level efficiency, easy and make above-mentioned partially hydrated molding economically and the manufacture method of the partially hydrated molding of the hydraulic-composition that is shaped for another object of the present invention.
In addition, provide can be easy and effectively above-mentioned partially hydrated molding is used for the using method of partially hydrated molding of the hydraulic-composition of various uses for another purpose of the present invention.
Discoveries such as the inventor, even hydraulic-composition also can make it be solidified into the degree of keeping self shape under the condition of water shortage theoretical water, simultaneously can make the hydration activity residual in this partially hydrated molding, therefore use upward more convenient, can supply with water by the desirable moment afterwards, utilize residual hydration activity to become complete hydration curing body, thereby finished the present invention.
That is, it has been generally acknowledged that the hydration curing body of hydraulic-composition is the molding of pouring into a mould and its curing being formed by in mould, so hydration reaction is inseparable relation with being formed into body, if there is not hydration reaction, just can not obtain molding.
Comparatively speaking, theoretical as described below as its foundation among the present invention: hydration reaction is divided into two parts of " keeping the required part of shape " and " contributing to the part of physicalies such as intensity and weather resistance ", the former hydration reaction is to utilize the hydration reaction of keeping the required degree of self shape to be formed into body, the latter's hydration reaction is that " supplying with water afterwards " can obtain the curing performance that equated with former hydrate cured body thus for arbitrary moment in use freely utilizes the hydration activity that residues in this molding.
The partially hydrated molding of hydraulic-composition of the present invention is characterised in that, the whole not hydration status that keeps uniformly of the partially hydrated molding of this hydraulic-composition, make hydraulic-composition partly the hydration curing degree that becomes can keep shape form.
Give one example particularly below.With hydraulic-composition and water with 99: 1-50: the weight ratio of 50 weight parts is mixed, at this moment the weight ratio of the water of Jia Ruing is when the theoretical water resultant of hydraulic-composition is above, the weight ratio that is water is about the 27-28 weight part when above with respect to 100 weight part hydraulic-compositions, in the afoot hydration reaction process, can be by heating or decompression etc., make water ratio be lower than the theoretical water resultant, be that the weight ratio of water becomes less than 28 weight parts, anhydrate to evaporate forcibly to remove, thereby when keeping shape, kept not hydration part.
In addition, the partially hydrated molding of hydraulic-composition of the present invention is characterised in that, also preferably contains macromolecular compound.
The manufacture method of the partially hydrated molding of hydraulic-composition of the present invention is characterised in that, by mixing hydraulic-composition and can making this hydraulic-composition carry out the water of measuring more than the theoretical amount of hydration reaction fully, and be shaped, when proceeding to the stage that can keep self shape, hydration reaction carries out forced drying, thereby make its retained part hydration activity, and the whole not hydration status that keeps uniformly of this hydraulic-composition.
In addition, another feature of the manufacture method of the partially hydrated molding of hydraulic-composition of the present invention is, can make this hydraulic-composition carry out the water of the theoretical amount of hydration reaction fully by mixing hydraulic-composition and being less than, make the mixture that obtains carry out hydration reaction and shaping, thereby make the hydration activity of its retained part, and the whole not hydration status that keeps uniformly of this hydraulic-composition.
The manufacture method of the partially hydrated molding of above-mentioned hydraulic-composition is characterised in that this shaping is preferably die forming, extrusion molding or injection molding forming.
The manufacture method of the partially hydrated molding of above-mentioned hydraulic-composition is characterised in that, macromolecular compound and above-mentioned a part of water are replaced and contains macromolecular compound thus.
The using method of the partially hydrated molding of hydraulic-composition of the present invention is characterised in that, by in the partially hydrated molding of hydraulic-composition of the present invention, adding entry, it is active and be cured to use up residual hydration, thereby can be used for following various uses such as crack patching material effectively.
The using method of the partially hydrated molding of above-mentioned hydraulic-composition is characterised in that, is preferably used as after the partially hydrated molding of the partially filled above-mentioned hydraulic-composition of fracture faces of works at the crack injecting material that above-mentioned crack is inner before filling and repairs this fissured fissure filling material.
Embodiment
By following ideal example explanation the present invention, but be not limited to these.
The partially hydrated molding of hydraulic-composition of the present invention is the partly molding that forms to the degree that can keep shape of hydration curing of hydraulic-composition, and wherein hydraulic-composition and water section ground carry out hydration curing, and then remain with not hydration part.
As described later, of the present inventionly thisly keeping the active partially hydrated molding that keeps self shape simultaneously of hydration, in use, it is " adding water later on ", thereby hydration reaction is proceeded to have degree with the roughly the same performance of former hydration curing body, be cured simultaneously, therefore can be used for various uses.
Here, what is called in this specification sheets " partially hydrated molding " expression is below the 25 weight % according to the scorching hot decrement value (igntion loss) of regulation in JIS R 5202 " the scorching hot decrement of cement ", be preferably the following molding of 15 weight %, and refer to be configured as the material that can be provided in the state in the using method described in the following embodiment.
Partially hydrated molding of the present invention is for example when scorching hot decrement value is 15 weight %, be used to make normally 28 weight % of its theoretical water that hydration reaction finishes, so 13 remaining weight % are contained in the molding under still keeping the active state of hydration, thereby form partially hydrated molding.
The hydraulic-composition that uses in partially hydrated molding of the present invention can be only by hydraulicity powder constituent as powder stock.
Here, so-called hydraulicity powder refers to the powder that water is cured, and preferred the use is selected from normal portland cement, jet cement, luminite cement, hypervelocity and coagulates cement, Calucium Silicate powder, calcium aluminate, calcium aluminum fluoride, sulfuration calcium aluminate, iron calcium aluminate, calcium phosphate, slag, half hydration or dehydrated gyp-and have at least a powder in the self-hardening unslaked lime powder.
Particle diameter of above-mentioned hydraulicity powder etc. is not particularly limited, but the viewpoint of work-ing life during from shaping and the molding intensity that obtains, preferred median size is about 10-40 μ m, in addition, from guaranteeing the high-intensity viewpoint of molding, preferred Brian specific surface area is 2500cm
2More than/the g.
In addition, the hydraulic-composition that uses among the present invention can also contain the on-hydraulic powder except containing above-mentioned hydraulicity powder.
Even this on-hydraulic powder refers under free state to contact with water the powder that also is not cured, but its composition is come out by elution under the alkalescence of being also included within or acid state or the high compressed steam atmosphere, and other composition that goes out with elution reacts and forms the powder of product.
As the on-hydraulic powder, can compatibly use at least a powder that is selected from calcium hydroxide powder, two hydrated gypsum powder, calcium carbonate powders, slag powder, flyash powder, silica powder, clay powders and the silica flour powder.
These on-hydraulic powder have the performance of promoting intensity by pozzolanic reaction or sheet gauge (microfiller) effect.
The median size of these on-hydraulic powder, become fine and close viewpoint from gap, the molding of filling hydraulicity powder, preferably more than the little one digit number of median size than hydraulic-composition powder, more than the more preferably little double figures, and the not restriction especially of the lower limit of fineness, just not do not do special restriction if do not damage effect of the present invention, but from keeping the viewpoint of good plasticity, preferably be about usually hydraulicity powder median size 1/500.
By using the on-hydraulic powder of this particle diameter, can further improve the shape maintains of molding.
When preparation partially hydrated molding of the present invention, for example above-mentioned hydraulic-composition and water are 99 with weight ratio; 1-50: the ratio of 50 weight parts, preferred 80: 20-95: the ratio of 5 weight parts is mixed.
As mentioned above, at this moment the weight ratio of the water of Jia Ruing is that the theoretical water resultant of hydraulic-composition is when above, the weight ratio that is water is about 27-28 weight part when above with respect to the hydraulic-composition of 100 weight parts, for make water ratio less than the amount of theoretical water resultant, be the amount of the weight ratio of water less than 28 weight parts, form hydraulic-composition and in the process of hydration reaction, remove to anhydrate by forced evaporation.
Here, the theoretical water resultant of so-called hydraulic-composition is, for example, under the situation of common normal portland cement, be meant the theoretical water of normal portland cement, be the mineral composition of the normal portland cement needed water yield when all forming hydrate by hydration reaction, for example with respect to the normal portland cement of 100 weight parts, water is the 27-28 weight part.Specifically, when the water with the normal portland cement of 100g and 28g mixes and when making it carry out good curing, As time goes on can fully carry out hydration and can obtain complete hydration curing body, the theoretical water resultant is exactly the water yield that can access the degree of complete hydration curing body.
On the other hand, for example, add and mix the water of about 10 weight parts and during the mixture that obtains when stirring with respect to 100 weight part normal portland cements, though water deficiency wherein is so that the mixture that hydration reaction is carried out fully, promptly original 100 weight part hydraulic-compositions require the theoretical water of 28 weight parts waters but only added the mixture of 10 weight parts waters, can become moistening lucky coccoid state.
Make it be configured as desirable shape by it being carried out for example die forming etc.,, make it keep self shape, so also can obtain partially hydrated molding of the present invention again by the hydration reaction of part.
Be more suitable for ground, because the droplet dia of the water that adds in the hydraulic-composition is less than or equal to the powder diameter of hydraulic-composition, therefore in the moistening powder of the mixing of hydraulic-composition that obtains and water, can not form what is called " stirring ball ", can obtain uniform mixture, so preferred.
Also have, when the process that will this partially hydrated molding be used for various uses contact with water and when carrying out hydration reaction, look trace that can residuary water in repair in the crack for example can obtain and the roughly the same color of body originally, can keep good attractive in appearance.In addition, under situation about using, can obtain suitable bulging force as static breaking agent, thus the crushing efficiency height.
In addition, in partially hydrated molding of the present invention, can be as required by mixing, disperse macromolecular compounds such as containing water-soluble high-molecular compound, also can make it contain macromolecular compound by being replaced into this macromolecular compound with the part of the water of hydraulic-composition mix.
Particularly, when preparation partially hydrated molding of the present invention, under the situation that adopts castable and extrusion molding,, it is desirable to a part with this water and be replaced into water-soluble polymer and use in order to ensure flowability.
This macromolecular compound has in partially hydrated molding of the present invention and helps to improve plasticity, the performance when improving final the use, for example increases function such as adhesion strength.
As such water-soluble polymer, can be exemplified as with polyoxyethylene glycol, polyoxymethylene etc. is the polyalkylene glycol class of representative; Polyvinyl alcohols such as polyvinyl alcohol; Cellulose family or cellulose etherses such as carboxymethyl cellulose, Natvosol, Poise C-80M; Methylvinylether and copolymer-maleic anhydrides such as VEMA; Starch based; Poly-(oxyethane) that makes oxyethane such as ALKOX carry out ring-opening polymerization and obtain etc. can use these macromolecular compounds itself, perhaps also can be used as polymkeric substance emulsion and mix use.
Below, explain the method for partially hydrated molding of preparation hydraulic-composition of the present invention.
Being prepared as follows of the partially hydrated molding of hydraulic-composition of the present invention: water and hydraulic-composition are mixed with above-mentioned ratio of mixture, form then, be shaped the back making its stage of carrying out hydration, carry out the demoulding, forced drying, up to the degree that can keep self shape.
Specifically,, can use manufacturing process such as injection moulding method, extruding formation method, die forming method, castable method, but be not limited to these, can use known manufacturing process as manufacturing process.
If will prepare partially hydrated molding of the present invention, at first above-mentioned hydraulic-composition and water to be mixed with above-mentioned blending ratio and modulates, still for this blending means, as long as can use the method for any known to mix by uniform mixing.
Particularly, contain in use under the situation of hydraulic-composition of hydraulicity powder and on-hydraulic powder, preferred employing can add the blending means of strong shearing force, for example, uses プ ロ シ エ ア type mixing machine etc. to mix.Mix by mixing machine, can shorten the needed time when mixing with this high shear force.
In addition, as the method for adding water, as mentioned above, make this hydraulic-composition carry out the water mixing of the theoretical amount of hydration reaction fully with being less than hydraulic-composition.Thus, obtain wetting powder, carry out hydration reaction, can form the molding that to keep self shape, thereby in this molding, keep partially hydrated activity by this powder.If hydration reaction proceeds to the stage that can keep self shape, can carry out forced drying in the stage midway of hydration reaction as required so.
At this moment, if evenly add the method for this hydraulic-composition and water, just can use arbitrary method, but, must be noted that not produce so-called stirring ball for the resulting wetting powder of water of preparation stably by the above-mentioned amount of adding in above-mentioned hydraulic-composition.
If the generation that will prevent to stir ball, as mentioned above, the droplet dia of the water of adding is advisable below the particle dia of hydraulic-composition powder.
Therefore as the method that adds entry, can use effectively commercially available be called as Dry-fog spray nozzle, can spray the special-purpose spray nozzle that diameter is less than or equal to the drop of powder particle.
Specifically, the powder that can be suitable for hydraulic-composition adds in the mixing machine, Yi Bian make this mixing machine rotation or carry out married operation, supplies with the method for dry fog Yi Bian spray continuously.
According to mixing as described above, can obtain not stirring fully ball, the mixture of hydraulic-composition and water fully uniformly, promptly the wetting powder of hydraulic-composition by making its shaping, can obtain the partially hydrated molding of overall uniform.
Forced drying in the above-mentioned hydro-combination process can be finished by methods such as heating or pressurizations.During the complete hydration curing system of former hydraulic-composition is equipped with, this forced drying meeting causes producing disadvantageous states such as crack, but if for example diameter is the minimum molding of section shape about 10mm, then deleterious crack can be do not caused, partially hydrated molding can be obtained as target product.
Possess among the preparation method of partially hydrated molding of this forced drying operation, can also use extrusion molding beyond the castable etc.
In addition, even when using a part with water to be replaced into mixed solution water-soluble high-molecular compounds such as alcohol or low-molecular-weight polyoxyethylene glycol, water and macromolecular compound, also can be according to operation preparation same as described above.
What can replace aforesaid method is, with hydraulic-composition be enough to make the water measured more than the theoretical amount of the complete hydration of this hydraulic-composition to mix, when proceeding to the stage that can keep self shape, hydration reaction carries out forced drying, make the hydration activity of its retained part, thereby also can make the partially hydrated molding of hydraulic-composition of the present invention.
Castable before the mixture of the wetting powder state that for example adds the water about 10 weight parts in 100 weight part hydraulic-compositions and obtain is not suitable for etc.
Therefore, add and mix the water of degree that can castable, promptly add water and add to about 50 weight parts with respect to 100 weight part hydraulic-compositions, it is cast in makes it in the molding box of desired shape to be shaped, enough keep the stage demoulding of self shape in its hydration reaction, when for example adopting normal portland cement, it is desirable under 20 ℃ when material age is about 8 hours forced stripper mechanism, carry out forced drying again, to remove the water of the hydration reaction after being used for.By above operation, can obtain partially hydrated molding as target of the present invention.
When using die forming as manufacturing process, with the hydraulic-composition that obtains and be less than the water of theoretical water mixture, be that the wetting powder of hydraulic-composition is put into the moulding anchor clamps of using, for example in the material conveyance screw rod of extrusion moulding machine and the mold overflow mould part or the mould of pressing machine etc., use-case is 5000kg/cm according to appointment
2Following compacting pressure by extruding so that it is carried out moulding, densification, thereby can form partially hydrated molding.
Even more ideal is to implement the coating as thin as a wafer of paraffin or organic coating etc. on the surface of the partially hydrated molding that obtains and handle.By designing such coating, can prevent remaining hydration activity in the preservation period of this partially hydrated molding owing to airborne moisture loses.
The partially hydrated molding that obtains like this is owing to can be maintained in the shape of body, the crumbliness that has simultaneously appropriateness in use, so can be used as intercept water material, fissure filling material, static crushing material, various mortar premix product, various concrete premix product, various filling perforation material and backfilling material, and can improve its operation efficiency.
From the viewpoint of shape maintains and operation efficiency, the Bulk Specific Gravity that partially hydrated molding of the present invention has about 0.5-1.7 is more suitable.
The partially hydrated molding of hydraulic-composition of the present invention is to give shape under the state of water shortage theoretical amount, and realizes the demoulding at short notice.
Therefore, if the partially hydrated molding of hydraulic-composition of the present invention is cured, should partially hydrated molding as intercept water material, fissure filling material, static crushing material, various mortar premix product, various concrete premix product, various filling perforation material and backfilling material etc. after, need to supply with moisture and make its curing.
Below explanation is used as the partially hydrated molding of hydraulic-composition of the present invention the example of fissure filling material.
The partially hydrated molding of hydraulic-composition of the present invention can be manufactured desirable shape, for example the molding of reactance coil (choke) shape.
After the crackle of the partially hydrated molding of this chokes round on resulting from concrete, ceramic tile or the wall that sprays paint etc. smeared, broken easily because of it, thus can fill crackle effectively.
After the filling, if provide water to filling position, then because the material of filling is the portion water compound with for example atomizer and sponge etc., promptly owing to also keeping the hydration activity, so can promptly begin hydration reaction, and in the crack, solidify, can finish fissured filling thus.
In addition, in water, flood about 5-30 second if will be configured as the fore-end of the partially hydrated molding of the present invention of desirable shape, for example chokes round, the top end part that then only impregnated in the water becomes the softish pasty state, so also the molding of this pasty state attitude can be rubbed in the crack.
In any method, hydration reaction all can be finished at short notice.Particularly when using the hard class cement of hypervelocity as hydraulic-composition, just can finish hydration reaction with interior in several minutes, therefore just can carry out the crack repairing at short notice easily, even there are how many people to mend a split at an easy rate.
In addition, do not contain tackiness agent in the partially hydrated molding of the present invention, thus when repairing, powder that overflow or adhesion around can easily removing with for example hairbrush and brush etc., thus use the back aesthetic property very outstanding as for example fissure filling material.
It is roughly the same with original body that the repairing position good waterproof performance that obtains thus, the aberration after the repairing become, thereby can keep aesthetic very effectively.
In addition, it is desirable to,, can also use fissure filling material of the present invention and crack injecting material in the past simultaneously in order to seal the crack fully.
Specifically, for example, for crack as target, be rubbed into partially hydrated fissure filling material of the present invention, at this moment, as the filling mouth of the crack injecting material in the past of filling afterwards, reserve for example about 5-10mm at surface portion, this part is not wiped fissure filling material into of the present invention.
Then, remove the fissure filling material part of exposing from the crack of the present invention, contain the sponge of water, provide water to the fissure filling material of the present invention of having filled, thereby make the portion water compound become complete hydrate by extruding with hairbrush and brush etc.
,, can use the hard class cement etc. that for example exceeds the speed limit here,, at this moment also finish the sealing of keeping and keeping a part attractive in appearance of crack part so can promptly finish curing as fissure filling material of the present invention.
As mentioned above, can be from the filling mouth that keeps, with for example vinylformic acid system syringe, the inner injection (for example mixed crack injecting material in the past to the crack, ProductName: ultramicron cement class crack injecting material Refrefilbond, the big plate cement in Sumitomo Co., Ltd. system) material.
According to present method, when crackle is cut into the inner degree of depth when dark, by crackle injecting material in the past being filled into densely the deep of inside crack, mended crack positively, on the other hand by use crackle packing material of the present invention at surface portion, can keep the attractive in appearance of surface portion, and crackle packing material of the present invention can also be brought into play the function of the sealing material of the crackle injecting material leaching that prevents in the past.
Seal crackle as described above, can prevent sealing by crackle to the soaking into of concrete body, and prevent getting rusty and corroding of inner reinforcing bar, its result can improve the weather resistance of concrete body.
Below explanation is the example of the partially hydrated molding of hydraulic-composition of the present invention as the use of static crushing material.
Can be configured as required shape, for example hollow cylindrical to the partially hydrated molding of hydraulic-composition of the present invention.
On rock that becomes broken target or concrete, get out diameter and the identical hole of the partially hydrated molding of this hollow cylindrical, the partially hydrated molding of hollow cylindrical of the present invention is inserted in this hole, if the inner hollow diameter to the partially hydrated molding of hollow cylindrical of being filled is partly injected quantitative water, then can begin the hydration expansion reaction immediately, can make rock and concrete produce tensile stress by this bulging force, thus can be with its fragmentation.
Therefore, can effectively utilize fragmentation in water especially.
Here, broken in the so-called water, be illustrated in that increasing of concrete structure under the sea at harbour for example built or reconstruction etc. in, the situation of broken existing underwater concrete works etc.
Usually, the static crushing product can mix with water in advance and be the good pasty state of flowability.
Because the proportion of this pasty state material is about 2.3, and is heavier than water, be drilled in the water in the hole on the structure so be considered to also can be filled into by difference in specific gravity, be difficult to realize but be actually in the place that trend is arranged.
In view of this point, also can use pulverous static breaking agent product is packed into behind the cloth bag, with rod disclose the method that on one side be inserted in hole on one side, but this operates in that efficient is low under water, may not be broken construction method in the effective water.
In contrast, in the present invention, because will under partially hydrated state, be configured as for example bar-shaped in advance by the static crushing material that the partially hydrated molding of hydraulic-composition of the present invention is formed, this bar-like portion hydration molding is just inserted in insertion in the hole, so can become very easy.
If water soaks into to the inside of this partially hydrated molding of filling at leisure, then can begin to carry out the hydration reaction of cracking agent, owing to caused expansion, thus can the generation tensile stress in concrete body etc., thus can be with its fragmentation.
In addition, also can on the length direction of the central part of partially hydrated molding, form the little limbers of about 1-2mm degree as required, more effectively carry out hydration reaction thus.
Below explanation is the example of the partially hydrated molding of hydraulic-composition of the present invention as crab-bolt backfilling material in the hole.
Extracting and withdrawing from these again after the crab-bolt in the hole that concrete and laccolite use is the operations of often carrying out in building, building field.
If do not handle the crab-bolt vestige; then on concrete, can leave the hole always; so need carry out backfill; but the crab-bolt vestige is the aperture of the about 17mm of diameter, about deeply 120mm normally; for example, in a top engineering (engineering of bridge purlin on bridge pier is put on the shelf) of building bridge, need to carry out thousands of crab-bolt vestige backfilling operations sometimes.
Adopted in the past be with thin rod and spoon on a small quantity the mortar through mixing fill up method in the hole by manual operations one by one, but the non-constant of this method efficient.
According to the present invention, then the of the present invention partially hydrated molding with crab-bolt vestige approximate same size can be configured as in advance the about 17mm of diameter for example, be about the shape of 120mm, with hammer it is driven in the hole then, if resupply quantitative water, the water that for example is about 30 weight % of molding weight, then hydration reaction will take place, thereby can finish backfilling operation.
Perhaps, also can with partially hydrated molding of the present invention pre-soaked in water several minutes when absorbing water and limbering up, drive in method in the hole to several hours with above-mentioned similarly the employing with hammer, so just can finish backfilling operation.
Below explanation is used as the partially hydrated molding of hydraulic-composition of the present invention the example of mortar premix product.
The partially hydrated molding of hydraulic-composition of the present invention is used to keep self shape by adjustment and compacting pressure when the water yield that adds and die forming when being shaped originally, can form " rare water " molding that water can directly soak into.The molding of this rare water has the space that water is soaked into rapidly in the inside of himself, therefore by in the mixing machine that contains quantitative to some extent water, directly add this partially hydrated molding, identical mixing in the time of can carrying out with the adding powder, thus fresh mortar (also not solidified mortar) can be obtained at short notice.
Partially hydrated molding of the present invention can promptly mix with water, prepares uniform fresh mortar, and the mortar that obtains has the strength embodying with former product same degree.
In view of the performances such as intensity embodiment after solidifying, the partially hydrated molding of using with in advance as mortar, for the water yield keeping himself shape and added originally few more good more, but with respect to hydraulic-composition, if water shortage 3 weight %, then plasticity and shape maintains become difficult, so the particularly suitable water yield is about 3-10 weight %.
The partially hydrated molding of hydraulic-composition of the present invention can be maintained in the shape of body, is easy to fragmentation in use simultaneously, thereby can improves operation efficiency.In addition, be cured as needed shape owing to can be shaped hydraulic-composition at an easy rate, so also can be used for the various uses except above-mentioned, and might as well under its circulation status, might as well in the operating environment of using, dust can be do not produced, thereby environment can be kept very well.
In addition, the partially hydrated molding of hydraulic-composition of the present invention can prevent that weathering also can prolonged preservation.
In addition, the preparation method of the partially hydrated molding of the hydraulic-composition of the present invention above-mentioned partially hydrated molding that can be shaped expeditiously, easily and economically.
Also have, the using method of the partially hydrated molding of hydraulic-composition of the present invention by supplementary feed in use, can be finished the curing of hydraulic-composition, when can developing widely use, can make its operation become simple.
Particularly, if use the partially hydrated molding of hydraulic-composition of the present invention, then not only do not need special instrument and technology, and there are how many people can be simply and carry out filling, the repairing in crack etc. exactly, can prevent that moisture from entering inside such as concrete, and can prevent that inner reinforcing bar from getting rusty, so can prevent deterioration, the breakage of concrete etc.
Embodiment
According to following embodiment, comparative example and test example explanation the present invention.
＜fissure filling material 〉
Embodiment 1
With 10kg as hydraulic-composition with the intercept water material (trade(brand)name of hard class cement that exceed the speed limit as raw material; Lionsisui 101, the big plate cement in Sumitomo Co., Ltd. system) add in the tilting-type concrete mixing machine, for dustproof, the input port of mixing machine covers with plastic sheet.Dig the aperture of the about 5cm of diameter at the middle body of plastic sheet, from mixing machine, inserting Dry-fog spray nozzle (trade(brand)name here; ア キ ミ ス ト D type, Ikeuchi Corp.'s system) after, sprays into 1 minute spray amount of 0.05 liter and to add up to 1.6 liters water.
Also have, the average droplet size of the spraying gun water smoke of supplying with by above-mentioned Dry-fog spray nozzle equate substantially with the average powder diameter of this material that intercepts water that becomes the target of spraying or 10 μ m less than it about.
Obtained this material that intercepts water (powder) thus: water is the mixture of 100: 16 weight part ratios, does not observe what is called " stirring ball " in this mixture, is fully uniform powder wet mix.
This be because droplet dia below powder diameter, so can physically not generate the stirring ball.
This wet mix is added in extrusion moulding machine, and be configured as the elongated cylindrical of diameter 17mm, long 90mm, i.e. just in time identical shape, thereby prepare partially hydrated molding as the hydraulic-composition of fissure filling material of the present invention with reactance coil.
The scorching hot decrement value (ignition loss) that " the scorching hot decrement of cement " regulation according to JIS R 5202 of the partially hydrated molding that obtains is calculated is 18 weight %.
Comparative example 1-3
Commercially available epoxies crack patching material (trade(brand)name; Flexible epoxy resin E600, KONISHI Co., Ltd. system) as a comparative example 1, commercially available elaxtic seal class crack patching material (trade(brand)name; View seal 6909, KONISHI Co., Ltd. system) as a comparative example 2, in addition commercially available ultramicron cement class crack patching material (trade(brand)name; Refrefilbond, the big plate cement in Sumitomo Co., Ltd. system) as a comparative example 3, as fissure filling material.
Comparative example 4
Will as hydraulic-composition with the intercept water material (trade(brand)name of hard class cement that exceed the speed limit as raw material; Lionsisui 101, the big plate cement in Sumitomo Co., Ltd. system) and water-soluble polymer (trade(brand)name; PEO-1, Sumitomo Seika Co., Ltd's system) slightly mixing of metering, make this material that intercepts water (powder): water-soluble polymer (powder) is 9: 1 a weight part ratio, mixes obtaining uniform flowing mixture in 15 minutes down at 85 ℃.
This mixture is joined in the extrusion moulding machine, on one side with the temperature maintenance of screw rod and extruding mold at 80 ℃, push with the melt-flow state on one side, cooling, and then be configured as the elongated cylindrical of diameter 17mm, long 90mm, promptly just in time identical shape with reactance coil, thus preparation is as the unhydrated molding of the hydraulic-composition of fissure filling material of the present invention.
Test routine 1-1
(1) waterproof prevents the effect that reinforcing bar gets rusty
(preparation of sample)
With the concrete depositing total length 15m that has sneaked into the excess of expanding material, high 45cm, thick 10cm build the simulation sample of concrete blocks foundation with ordinary residence as model, again by intentionally cracking with reinforcing bar constraint bottom surface.
The interval of showing 30cm greatly produces and amounts to 38 cracks that width is 0.3-1.0mm.These fissured major parts are the crack that short transverse, thickness direction all connect.
(the rust-proof effect test of waterproof=reinforcing bar)
In 38 cracks that produce in the sample, do not handle 5 fissure filling materials that use comparative example 1, other 5 crack patching materials that use comparative example 2 for 8, remaining 5 crack patching materials that use comparative example 3 are filled and mended crack according to the record on the handbook respectively.
On the other hand, the top end part of the crack patching material of the chokes round that obtains in the foregoing description 1 is immersed in 5-30 limbers up it second in the water, be rubbed into the fissure filling material of this limpen chokes round along remaining 15 cracks, fill, mend a split.
Through after 24 hours, spraying concentration in continuous 48 hours from the direction of repairing face is the salt solution of 15 weight % after the repairing.
After spraying stops 7 days, take sample apart, confirm the situation of getting rusty of inner reinforcing bar.
It the results are shown in table 1.
Table 1
By above-mentioned table 1 as can be known,, method for repairing and mending can be obviously simplified, prevent the effect that reinforcing bar get rusty identical can be provided simultaneously with commercially available ultramicron cement class crack patching material according to partially hydrated fissure filling material of the present invention and its filling, method for repairing and mending.
In addition, the of the present invention partially hydrated fissure filling material that obtains with injection molding forming also has identical effect.
(2) effect of keeping attractive in appearance
(measuring method)
When repair in the crack of implementing said sample, at synchronization, by same position, take the state that uses each fissure filling material front and back with Digital Video, with this data input computer, use the image scanning software ADOBE PHOTOSHOP of ADOBE SYSTEMS Co., Ltd. system, measure the rgb value of each pixel, promptly measure the difference (aberration) of crack part color.
(color difference measurement result)
Said determination the results are shown in the table 2.
Table 2
As shown in Table 2, obviously with roughly the same, have outstanding maintenance attractive in appearance, promptly have so-called crack and inapparent effect as the concrete sample of repairing preceding standard base material with the aberration after the partially hydrated fissure filling material repairing of the present invention.
In addition, because the aberration scope of the rgb value that can judge according to the mankind's vision is about 10, therefore when use partially hydrated fissure filling material of the present invention was repaired, after the repairing, the vision of personnel selection almost can not be recognized the crack.
In addition, the of the present invention partially hydrated fissure filling material that obtains with injection molding forming also has identical effect.
Test routine 1-2
Measure the chokes round molding of not hydration hydraulic-composition of comparative example 4 and the partially hydrated molding of chokes round that obtains by embodiment 1 for the fissured filling degree of depth.
Crack as subjects is concrete crack, its crack wide with crack table be measured as 0.1,0.3,0.5,0.9,1.3mm.For each crack, measured that click titter click rubs titter that " scrape on the limit " limit behind each chokes round molding 5 times is rubbed into 5 times with the hands and the mean depth of filling.
The so-called here degree of depth of filling can be obtained by following: promptly wipe the back of entering and supply with water by spraying or with wetting continuous cloth to the fissure filling material of filling, after it is solidified, the part that this repairing is over is destroyed, fill the cross section so that observe, fill the degree of depth of promptly repairing with vernier caliper measurement afterwards, and ask its mean value as filling the degree of depth.It the results are shown in the table 3.
Table 3
As shown in Table 3, adopt the chokes round molding filling degree of depth of partially hydrated molding of the present invention big, repair efficiency is good.
In addition, the of the present invention partially hydrated fissure filling material that obtains with injection molding forming also has identical effect.
Test routine 1-3
The efficient of time is repaired in the crack of estimating the chokes round molding of not hydration hydraulic-composition of comparative example 4 and the partially hydrated molding of chokes round that obtained by embodiment 1.
Crack as subjects is concrete crack, its crack is wide to be measured as thin crack of 0.1～0.3mm and the thick crack of 0.5-1.2mm with the crack table, and has measured the needed time of the crack of repairing 10 long 15cm and repaired the time that each crack needs.
The so-called here repairing time is 10 cracks to be repaired recover attractive in appearance and can satisfy the total of the needed time of state of water resistance.
But this time, the time that is cured needs with each hydraulic-composition that provides of moisture was not provided.
It the results are shown in the table 4.
Table 4
As shown in Table 4, when the chokes round molding that uses according to partially hydrated shaping of the present invention, because very " appropriate rand destroys the reactance coil limit and fills the crack ", so significantly improved operation efficiency.When partially hydrated crack patching material of the present invention is compared with the fissure filling material of comparative example 4, in repair in the thinner crack of the wide about 0.1-0.3mm in crack, operation efficiency can be brought up to 3.5 times as can be known, and in repair in the thick crack of the wide 0.5-1.2mm in crack, operation efficiency can be brought up to 2.6 times.
In addition, the of the present invention partially hydrated fissure filling material that obtains with injection molding forming also has identical effect.
＜static crushing material 〉
Embodiment 2
Except the material that intercepts water with the foregoing description 1 replaces with static crushing material powder (trade(brand)name; S-MITE VB, the big plate cement in Sumitomo Co., Ltd. system) in addition, test in the same manner with embodiment 1, obtain uniform mixture.
This mixture and embodiment 1 are joined in the extrusion moulding machine in the same manner,, be configured as the cylindrical of diameter 40mm * long 500mm, thereby preparation is as the partially hydrated molding of the hydraulic-composition of static crushing material of the present invention by carrying out extrusion molding.
The scorching hot decrement value (ignition loss) according to regulation in JIS R 5202 " the scorching hot decrement of cement " of the partially hydrated molding that obtains is 17 weight %.
Comparative example 5
In order relatively to use commercially available static crushing material (trade(brand)name; The S-MITE Type B, usefulness, the big plate cement in Sumitomo Co., Ltd. system in the heat).
Test example 2
(swelling pressure (crushing force) test)
As the target compound that is broken, use under water concrete sample (water temperature 20-25 ℃, outdoor, ultimate compression strength 27.3N/mm
2).On this concrete sample, get out the columniform hole of diameter 40mm * long 500mm.
Then, in the hole of above-mentioned concrete sample, fill the static crushing material that obtains by embodiment 2.Can very simply and densely fill.
On the other hand, the powder for the static crushing material of comparative example 5 by mixing water, is modulated into thickener, and the ratio of mixing water is 27 weight %, and fills this slurry in the hole of above-mentioned concrete sample.
The fragmentation of these static crushing materials can be expanded by its hydration and be obtained, and the measuring result that began after 24 hours from pouring water is shown in Table 5.
Table 5
| Kind | The swelling pressure (kgf/cm 2) | Could be broken | The crack time of origin (hour) |
| Embodiment 2 | 3000 | Can | 19 |
| Comparative example 5 | 3800 | Can | 12 |
Wherein, the swelling pressure are according to following proceeding measurement.
1) NKK (NKK Corp) seamless steel pipe SCH40-20A steel pipe (external diameter 53mm, internal diameter 50mm) is cut into the length of 40cm.
2) the static crushing material of filling embodiment 2 or comparative example 5 in this steel pipe, and its method is as follows respectively.
Promptly, with regard to embodiment 2, the uniform mixture that will obtain according to the method identical with the foregoing description 1 by extrusion molding is configured as the hollow cylindrical of external diameter 49.9mm, internal diameter 2mm, be inserted into, be seated in this steel duct, injection can make it carry out the water of hydration reaction in the inner diameter hole of 2mm again.
With regard to comparative example 4, inject and fill the thickener that above-mentioned concrete crushing test uses.
3) then along the circumferential direction of this outer diameter of steel pipes, the general strain view FLA-6-11 that Co., Ltd.'s Tokyo survey device institute system is had lead-in wire installs according to the record in this strain view handbook.
4) by above 1)-3) working order, all because hydration reaction produces tangible volumetric expansion, this bulging force shows as tensile strain to the static crushing material of this steel duct on the external diameter surface of this steel pipe.With above-mentioned 3) in the strain view of installing measure this tensile strain, multiply each other with the coefficient of elasticity of steel pipe, just can calculate the swelling pressure.
As can be known from Table 5, when carrying out fragmentation, can obviously simplify breaking method, can obtain simultaneously and product crushing effect about equally in the past by partially hydrated static crushing material of the present invention.
In addition, the of the present invention partially hydrated static crushing material that obtains with injection molding forming also has identical effect.
Crab-bolt backfilling material in the＜hole 〉
Embodiment 3
As hydraulic-composition, use normal portland cement (PC, manger woodworking mill of the big plate cement in Sumitomo Co., Ltd. system).
This hydraulic-composition and the ratio of mixture of keeping the water that added originally that self shape needs are counted 80: 20 weight parts with weight ratio, the mixture that obtains is like this joined in the extrusion moulding machine, being squeezed into diameter is the cylindrical of 17mm, and cuts into the specified length of 120mm.Should partially hydrated molding place maintenance 7 hours down, and then become the bar-shaped molding that fully to keep self shape humidity 54%, 23 ℃.
Then, this bar-shaped molding is kept in the drying machine that remains under 250 ℃ 5 hours, at this moment forced evaporation, remove and do not have the moisture that consumes in the hydration reaction, be i.e. free water.Thus, be to force under the about 7 hours hydration reaction state to stop hydration curing in material age, obtain partially hydrated molding, and then prepared crab-bolt backfilling material in the hole.
The scorching hot decrement value (ignition loss) according to regulation in JIS R 5202 " the scorching hot decrement of cement " of the partially hydrated molding that obtains is 22 weight %.
Comparative example 6
With normal portland cement (PC, Sumitomo manger woodworking mill of big plate cement Co., Ltd. system) and sand and water evenly mix with 1: 4: 0.3 weight part ratio and be fresh mortar, the bricklayer who with capacity is 3 liters is pressed into crab-bolt trace in the hole to it with small-sized hand push pump, uses the sheetmetal trowel that surface working is smooth again.
Test example 3
(the backfilling operation efficient of crab-bolt trace)
In imbedding the hole the concrete of crab-bolt, a plurality of crab-bolts of drawing.
After a plurality of crab-bolts of drawing, the size with 1 hole is the hole of the cylinder form of diameter 17mm, dark 120mm.
On the concrete crab-bolt trace of a plurality of crab-bolt traces with this shape, to throw in this crab-bolt trace by crab-bolt backfilling material in the hole that obtains in the foregoing description 3 with hammer, and the crab-bolt backfilling material is supplied with the water of the 30 weight % amount of crab-bolt backfilling material in the above-mentioned hole in this hole of filling, it is solidified, thereby finished the backfilling operation of crab-bolt trace.
On the other hand, operate the mortar backfilling material of backfill comparative example 5 in above-mentioned each crab-bolt trace by hand.
At this moment the operation efficiency of the two is shown in Table 5.
Table 6
| Kind | Total number of handling | Overall treatment time | The time that each position is used |
| Embodiment 3 | 3253 positions | 8.5 hour | 0.16 minute/position |
| Comparative example 6 | 879 positions | 17.5 hour | 1.19 minute/position |
By above-mentioned table 6 as can be known, backfilling material of the present invention and material in the past compare, and operation efficiency has improved about 7.4 times.
In addition, the of the present invention partially hydrated backfilling material that obtains with injection molding forming also has identical effect.
＜mortar premix product 〉
Embodiment 4-6
Use as hydraulic-composition with the intercept water material (trade(brand)name of hard class cement that exceed the speed limit as raw material; Lionsisui101, the big plate cement in Sumitomo Co., Ltd. system), use the method identical with embodiment 1, the blending ratio mixing water according to table 7 prepares partially hydrated molding.
The scorching hot decrement value (ignition loss) according to regulation in JIS R 5202 " the scorching hot decrement of cement " of the partially hydrated molding that obtains is respectively 6 weight %, 17 weight %, 22 weight %.
Table 7
| Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Hydraulic-composition amount C (kg) | 100 | 100 | 100 |
| Amount of water W (kg) | 5 | 16 | 20 |
Comparative example 7
In order relatively to use to exceed the speed limit the material that the intercepts water (trade(brand)name of hard class cement as raw material; Lionsisui101, the big plate cement in Sumitomo Co., Ltd. system) itself.
Test example 4
Material with the foregoing description 4-6 and comparative example 7, mix with the mixing water of amount shown in the table 8, join in the mixing machine then, carry out uniform mixing, prepare fresh mortar, thereby obtain the sample of diameter 50mm * 100mm,, measure each compressive strength of specimens its material age of in air, cultivating the regulation shown in the table 8.
It the results are shown in the table 8.
Wherein, ultimate compression strength is measured according to the method for JIS A 1108.
Table 8
| Embodiment 4 | Embodiment 5 | Embodiment 6 | Comparative example 7 | |
| Partially hydrated molding weight (kg) | 100 | 100 | 100 | 100 |
| Mixing water weight (kg) | 18 | 18 | 18 | 18 |
| Ultimate compression strength (N/mm 2) material age 3 hours | 14 | 12 | 11 | 16 |
| Material age 1 day | 51 | 48 | 47 | 55 |
| Material age 3 days | 53 | 50 | 49 | 57 |
| Material age 7 days | 56 | 52 | 50 | 60 |
| Material age 28 days | 59 | 54 | 52 | 62 |
| Material age 91 days | 60 | 56 | 53 | 63 |
By in the table 8 as can be known, in the material age of short period of time intensity 3 hours, the powerful index of mortar product of the present invention becomes 90% of former mortar premix product, but after intensity change well, brought into play roughly the same intensity.In addition, in 91 days long-term material age of material age, also shown stable intensity unit elongation as can be known and kept.
In addition, use the of the present invention partially hydrated molding that obtains by injection molding forming and the mortar product that obtains also has identical effect.
Industrial utilizability
Partially hydrated formed body of the present invention, shape maintains is good, is easy to fragmentation during use, and environment is also good simultaneously, do not need special tools and techniques, have How many people can be applicable at an easy rate filling, the repairing in crack etc. as the distress in concrete packing material yet. In addition, can also be used for the various uses such as static crushing material, various mortar premix product, various concrete premix product, various filling perforation material and backfilling material.
Claims (8)
1. the partially hydrated molding of a hydraulic-composition is characterized in that, the whole not hydration status that keeps uniformly of the partially hydrated molding of this hydraulic-composition, make hydraulic-composition partly hydration curing form to the degree that can keep shape.
2. the partially hydrated molding of the hydraulic-composition described in claim 1 is characterized in that, also contains macromolecular compound.
3. the manufacture method of the partially hydrated molding of a hydraulic-composition, it is characterized in that, when the partially hydrated molding of the hydraulic-composition described in the preparation claim 1 or 2, by hydraulic-composition and its amount is mixed and is shaped can making this hydraulic-composition carry out water more than the theoretical amount of hydration reaction fully, when proceeding to the stage that can keep self shape, hydration reaction implements forced drying, make the hydration activity of hydraulic-composition retained part, and the whole not hydration status that keeps uniformly of this hydraulic-composition.
4. the manufacture method of the partially hydrated molding of a hydraulic-composition, it is characterized in that, when the partially hydrated molding of the hydraulic-composition described in the preparation claim 1 or 2, mix by hydraulic-composition and its amount being less than the water that can make this hydraulic-composition carry out the theoretical amount of hydration reaction fully, make the mixture that obtains carry out hydration reaction and shaping, make the hydration activity of hydraulic-composition retained part, and the whole not hydration status that keeps uniformly of this hydraulic-composition.
5. the manufacture method of the partially hydrated molding of the hydraulic-composition described in claim 3 or 4 is characterized in that, described die forming, extrusion molding or the injection molding forming of being configured as.
6. as the manufacture method of the partially hydrated molding of any one described hydraulic-composition among the claim 3-5, it is characterized in that, substitute the part of described water and contain macromolecular compound.
7. the using method of the partially hydrated molding of a hydraulic-composition is characterized in that, adds water in the partially hydrated molding of the hydraulic-composition described in claim 1 or 2, uses up residual hydration activity and makes its curing.
8. the using method of the partially hydrated molding of the hydraulic-composition described in claim 7, it is characterized in that, should be used as fissure filling material by partially hydrated molding, promptly the partially hydrated molding of described hydraulic-composition is filled in the fracture faces portion of works, the inner crack injecting material of filling is repaired this crack in described crack then.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003320208A JP3678732B2 (en) | 2003-09-11 | 2003-09-11 | Partially hydrated molded body of hydraulic composition, method for producing the same and method for using the same |
| JP2003320208 | 2003-09-11 |
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| CN1594172A CN1594172A (en) | 2005-03-16 |
| CN100395205C true CN100395205C (en) | 2008-06-18 |
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| JP (1) | JP3678732B2 (en) |
| KR (1) | KR100860451B1 (en) |
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| JP5169368B2 (en) * | 2008-03-25 | 2013-03-27 | 住友大阪セメント株式会社 | Self-healing hydrated cured product and low-reactivity active cement material |
| JP5278265B2 (en) * | 2009-09-18 | 2013-09-04 | 住友大阪セメント株式会社 | Self-healing concrete admixture, method for producing the same, and self-healing concrete material using the admixture |
| KR101545635B1 (en) * | 2013-10-25 | 2015-08-19 | 주식회사 휴리스 | Waterproofing mortar composition and manufacturing method using the same |
| JP6358139B2 (en) * | 2015-03-24 | 2018-07-18 | 住友大阪セメント株式会社 | Inorganic anchor material and anchor muscle fixing method using the anchor material |
| JP6792430B2 (en) * | 2016-11-28 | 2020-11-25 | 前田建設工業株式会社 | Construction equipment for construction structures using 3D printing technology |
| CN112592107B (en) * | 2019-11-29 | 2021-11-02 | 中国建筑标准设计研究院有限公司 | Redissolved mortar consolidation, method for the production thereof, mortar product and use thereof |
| JP7122792B1 (en) * | 2022-06-07 | 2022-08-22 | 株式会社石橋建築研究所 | Admixture for waterproofing |
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| JPH0986983A (en) * | 1995-09-29 | 1997-03-31 | Shimizu Corp | Hydration curing material having self repairing properties against crack and its crack repairing |
| WO2003054080A1 (en) * | 2001-12-12 | 2003-07-03 | Sumitomo Osaka Cement Co., Ltd | Thermoplastic water-curable composition, molded object made from the thermoplastic water-curable composition, and process for producing the same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1200142B (en) * | 1985-11-08 | 1989-01-05 | Modern Advanced Concrete | METHOD TO IMPROVE THE FLUIDIFICATION OF CEMENT MIXTURES |
| JPH0678520B2 (en) * | 1986-04-08 | 1994-10-05 | 清水建設株式会社 | Water stop method for concrete structure |
| JPH0354137A (en) * | 1989-07-21 | 1991-03-08 | Toda Constr Co Ltd | Reuse of concrete taken to piece |
| JP2887170B2 (en) * | 1990-04-18 | 1999-04-26 | 三菱レイヨン株式会社 | Combined backfill injection water stop method |
| JP3154796B2 (en) * | 1992-02-29 | 2001-04-09 | 住友大阪セメント株式会社 | Composition for promoting hardening of cement and method for producing the same |
| JPH11349366A (en) | 1998-06-05 | 1999-12-21 | Nishimatsu Constr Co Ltd | Self-restorable concrete, its manufacture, and structure using self-restorable concrete |
| KR20030052218A (en) * | 2001-12-20 | 2003-06-26 | 한일종합실란트 주식회사 | The compounding process of concret restorer used on upper side of concret road &airport |
| JP2003246652A (en) * | 2002-02-25 | 2003-09-02 | Uchiyama Advance:Kk | Method of conserving hydrate-based mixture which has not been solidified yet by vacuum-freeze drying and method of reusing the mixture for multipurpose |
| JP2003291131A (en) * | 2002-03-29 | 2003-10-14 | Uchiyama Advance:Kk | Separation and collection method for mixture constituent material by high temperature drying of hydrated mixture not yet solidified |
-
2003
- 2003-09-11 JP JP2003320208A patent/JP3678732B2/en not_active Expired - Lifetime
-
2004
- 2004-01-30 KR KR1020040006211A patent/KR100860451B1/en not_active IP Right Cessation
- 2004-02-26 CN CNB2004100070513A patent/CN100395205C/en not_active Expired - Fee Related
- 2004-04-19 WO PCT/JP2004/005558 patent/WO2005026073A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0986983A (en) * | 1995-09-29 | 1997-03-31 | Shimizu Corp | Hydration curing material having self repairing properties against crack and its crack repairing |
| WO2003054080A1 (en) * | 2001-12-12 | 2003-07-03 | Sumitomo Osaka Cement Co., Ltd | Thermoplastic water-curable composition, molded object made from the thermoplastic water-curable composition, and process for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005026073A1 (en) | 2005-03-24 |
| KR20050026977A (en) | 2005-03-17 |
| KR100860451B1 (en) | 2008-09-25 |
| CN1594172A (en) | 2005-03-16 |
| JP2005081824A (en) | 2005-03-31 |
| JP3678732B2 (en) | 2005-08-03 |
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