CN101535207A - Cement mortar composition for grout and grout mortar obtained from the same - Google Patents
Cement mortar composition for grout and grout mortar obtained from the same Download PDFInfo
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- CN101535207A CN101535207A CN200680056386A CN200680056386A CN101535207A CN 101535207 A CN101535207 A CN 101535207A CN 200680056386 A CN200680056386 A CN 200680056386A CN 200680056386 A CN200680056386 A CN 200680056386A CN 101535207 A CN101535207 A CN 101535207A
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- Prior art keywords
- cement mortar
- mortar composition
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- grouting
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Classifications
-
- 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
- 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
- C04B28/14—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 calcium sulfate cements
-
- 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
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/308—Slump-loss preventing agents
-
- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
A cement mortar composition for grouts which retains satisfactory flowability, is free from bleeding and material separation, has an anti-cracking ability due to high strength, high durability, and reduction in dry shrinkage, and is for use in applications such as foundations for machines; and a grout mortar obtained from the composition. The cement mortar composition for grouts comprises a binder, a setting retarder, a water-reducing agent, and a fine aggregate. It is characterized in that the binder comprises a quick hardening material comprising a cement, calcium aluminosilicate glass, and plaster and a fine pozzolan powder, the water-reducing agent comprises at least a polycarboxylate-type water-reducing agent, and the fine aggregate is a heavy aggregate having a density of 3.0 g/cm<3> or higher. The grout mortar is obtained by kneading the cement mortar composition together with water.
Description
Technical field
The present invention relates generally to a kind of building, the employed grouting in building aspect (grout) cement plaster (cement mortar) composition, at length, relate to and a kind ofly have good flowability, high strength, high-durability, low shrink(LS) grouting with cement mortar composition and use its slip casting (grout mortor).
Background technology
In the past, as injection material generally is the material that adds water reducer in cement, further, add the whipping agent of the expanding material of calcium sulphoaluminate system or lime or aluminium powder etc. and it is not shunk, mix river sand or silica sand etc. then in these as slurry (paste) or mortar, be widely used in to building, construction work, particularly to slight gap in the concrete structure, the base of building the repairing of the slit that produces in worker's method, structure or enhancing, mechanism is down and in the inferior constructional method of filling of track cement plate etc.
In injection material, have PC grouting, precast concrete with the filling grouting of grouting, tunnel or shield structure, prefabricated with grouting, structure repairing or strengthen that grouting, splice grouting, bridge are in the milk under supporting with injecting, be in the milk under the mechanical pedestal, be in the milk under the cement plate of mating formation, be in the milk under the track cement plate and the nuclear power station storage vessel under be in the milk etc.
In addition, for grouting with cement mortar composition known have contain the type of the tachy steroling composition (with reference to patent documentation 1～4) that quick curing agent forms, following content is also disclosed in patent documentation 2: use in the cement mortar composition in these grouting, with quick curing agent, having mixed condenses adjusts agent (retarding agent condenses) and flowing agent (water reducer), wherein, use the quick curing agent that forms by calcium aluminosilicate glass (calcium aluminium silicate glass) and gypsum as quick curing agent.
By using these grouting cement mortar compositions, can make and have manifesting property of excellent in strength and slip casting that can guarantee certain flowability, but still demand is made and can be guaranteed better flowability, and do not produce bleeding (bleeding) or material separation, high strength, high-durability and low shrink(LS) grouting cement mortar composition.
Patent documentation 1: the spy opens the 2001-97759 communique
Patent documentation 2: the spy opens the 2006-27937 communique
Patent documentation 3: the spy opens the 2006-104013 communique
Patent documentation 4: specially permit communique No. 2861612
Further, it is known that to have with calcium aluminosilicate glass (calcium aluminium silicate glass), mineral sulfates (gypsum) and reactive silicon metallic substance (volcanic ash micropowder) be the invention (patent documentation 5) of the concrete mixing material of main component, but, do not have in the patent documentation 5 openly like this concrete mixing material is being in the milk with the use in the cement mortar composition.
Patent documentation 5: specially permit communique No. 2975422
On the other hand, patent documentation 6 also discloses following content: be mixed with and comprise concrete, expansion material and volcanic ash micropowder form in conjunction with material, in the mortar material of fine aggregate and water reducer, known have the heavy aggregate as fine aggregate of blend gravity more than 3.0, be mainly used in the invention (with reference to patent documentation 6) of the mortar material in the filling fortification of the shield wall of nuclear power station or the base configuration thing of mechanism etc., thus, provide a kind of material separation that do not produce, has good fluidity, suppress the temperature rising and be not easy to produce the fissured heavy mortar that thermal stress causes.But, openly so heavy mortar is not applicable to the slip casting of the type of tachy steroling in the patent documentation 5.
Patent documentation 6: the spy opens the 2005-47772 communique
Summary of the invention
The object of the present invention is to provide a kind of grouting cement mortar composition, can well be adapted to the Mechanical Fundamentals grouting etc. in the above-mentioned multi-usage, and keep good fluidity, have the high strength, high-durability and the low-shrinkage that do not produce bleeding or material separation; And a kind of slip casting of using said composition.
The present invention has adopted following means for solving above-mentioned problem.
(1) a kind of grouting cement mortar composition, it forms by containing in conjunction with material, the retarding agent that condenses, water reducer and fine aggregate, it is characterized in that, described quick curing agent and the volcanic ash micropowder that forms by cement, calcium aluminum silicate glass and gypsum that contain in conjunction with material, described water reducer contains the polycarboxylate based water reducer at least, and described fine aggregate is density 3.0g/cm
3Above heavy aggregate.
(2) the grouting cement mortar composition described in above-mentioned (1), wherein, the volcanic ash micropowder is that the content of silicon-dioxide is more than 90% and the siliceous micropowder of hydrogen ion concentration in acidic region.
(3) the grouting cement mortar composition described in above-mentioned (1) or (2), wherein, described cement contains by fractionated micropowder cement.
(4), wherein, describedly further contain the expansion material in conjunction with material as each described grouting cement mortar composition in above-mentioned (1)～(3).
(5) the grouting cement mortar composition described in above-mentioned (4), wherein, described expansion material is that Bo Shi value (blaine) is 4000cm
2The above calcium sulphoaluminate of/g is the expansion material.
(6) as each described grouting cement mortar composition in above-mentioned (1)～(5), wherein, described water reducer further contains the melamine sulfonate based water reducer.
(7) as each described grouting cement mortar composition in above-mentioned (1)～(6), wherein, further contain economization agent.
(8) as each described grouting cement mortar composition in above-mentioned (1)～(7), wherein, further contain foaming substance.
(9) as each described grouting cement mortar composition in above-mentioned (1)～(8), wherein, further contain tackifier.
(10) a kind of slip casting forms with cement mortar composition and water by each described grouting in mixing above-mentioned (1)～(9).
(11) as above-mentioned (10) described slip casting, wherein, with respect to 100 parts in conjunction with material, water is 31～36 parts.
The grout composition of the application of the invention can provide a kind of and keep good fluidity and have not producing bleeding or material separation, high strength and high-durability and having the slip casting that prevents to be caused by dry shrinkage (low-shrinkage) the rimose performance.
Embodiment
Below, explain the present invention.
In addition, if the not special regulation of part of using among the present invention or % is meant quality standard.
Among the present invention, mixing grouting is modulated into slip casting with cement mortar composition and water, grouting wherein contains quick curing agent, volcanic ash micropowder, the retarding agent that condenses, water reducer and heavy aggregate with cement mortar composition, can also contain expansion material, economization agent, micropowder cement, foaming substance, tackifier as required.
As the cement that the present invention uses, can enumerate common, various silicate cements such as strong, low-heat and middle heat early, and utilization of waste material type cement, i.e. environment protecting cement etc.
Among the present invention, part cement can use micropowder cement.Micropowder cement uses ordinary Portland cement is ground into granularity is below 20 microns, is classified into the cement of 10 microns following granularities then.Be preferably below 5 parts in conjunction with usage quantity in 100 parts of the materials (the total amount of cement, quick curing agent, volcanic ash micropowder and expansion material, below identical), if surpass 5 parts, have not reach the effect that suppresses bleeding, or damage mobile such problem.
The quick curing agent that uses among the present invention is formed by calcium aluminium silicate glass and gypsum.
The preferred compositing range of calcium aluminium silicate glass that relates among the present invention is 60～30% CaO, 20～60% Al
2O
3, 5～25% SiO
2, more preferably CaO be 55～30%, Al
2O
3Be 30～60%, SiO
2Be 10～25%.If CaO is less than 30% or Al
2O
3Surpass 60%, the rapidly-curable variation, opposite, if CaO surpasses 60% or Al
2O
3Less than 20%, retarding agent is also at instantaneous coagulation, if SiO even heavy addition condenses
2Less than 5%, can not obtain long intensity and extend, opposite, if surpass 5%, the decline of manifesting property of early strength.
The raw material of the calcium aluminium silicate glass that relates among the present invention can use unslaked lime (CaO), slaked lime (Ca (OH)
2), Wingdale (CaCO
3) wait raw material as CaO, use aluminum oxide, alumina, diasporite, feldspar, clay etc. as Al
2O
3Raw material uses quartz sand, carclazyte, diatomite etc. as SiO
2Raw material.
Make by following method.With above CaO raw material, Al
2O
3Raw material, SiO
2After the raw material mixed in accordance with regulations,, the molten mass of making is blown the method that flies, or molten mass is thrown away method in the entry by pressurized air or high pressure water with the dissolving of direct energized melting furnace or high frequency furnace, or with rotary kiln with starting material fusion and chilling.
On the problem of manifesting property of intensity, the preferred Bo Shi value of the granularity of calcium aluminium silicate glass is 3000cm
2More than/the g, 5000cm more preferably
2More than/the g.If less than 3000cm
2/ g has the danger that reduces manifesting property of intensity.
Dehydrated gyp-, semi-hydrated gypsum and dihydrate gypsum etc. can be enumerated as gypsum, in these one or more can be used, wherein, from the preferred dehydrated gyp-of the angle of manifesting property of intensity
From the angle of manifesting property of intensity, the preferred Bo Shi value of the granularity of gypsum is 3000cm
2More than/the g, 5000cm more preferably
2More than/the g.If less than 3000cm
2/ g has the danger that reduces manifesting property of intensity.
Calcium aluminium silicate glass with respect to 100 parts, the usage quantity of gypsum are preferably 50～150 parts.If less than 50 parts or above 150 parts, the decline of manifesting property of intensity.
In 100 parts of materials, the addition of quick curing agent is preferably 9～25 parts.If less than 9 parts, manifesting property of intensity has the situation of decline, if surpass 25 parts, then effect reaches capacity.
The volcanic ash micropowder of Shi Yonging is to produce to have the material that good fluidity and intensity manifest, therefore preferred silicon-dioxide (SiO especially in low water ratio in the present invention
2) content be more than 90%, hydrogen ion concentration is at the siliceous micropowder of acidic region.
The manufacture method of siliceous micropowder is as follows, the method of oxidized metal silicon fines in flame for example, or in the thermal-flame in the method for molten silicon raw material micropowder, by adjust the heat-treat condition of raw material, set collecting temperature be 550 ℃ with on make siliceous micropowder.In addition, when melting zircon sand (zircon sand) by electricity in electric furnace in addition, make with carrying out classification after the collections such as cyclone.
In 100 parts of materials, the usage quantity of volcanic ash micropowder is preferably 5～15 parts.If less than 5 parts, have following problem: intensity manifests bad; Ball (ball bearing) effect disappears, and it is big that the load when mixing becomes; Can not get the superior fluidity that had in the water yield of regulation.If surpass 15 parts, have mobile effect and become saturated, the decline of manifesting property of intensity.
There is no particular limitation for the expansion material that uses among the present invention, can use the expansion material of selling on the open market, and can use calcium sulphoaluminate is that expansion material, iron calcium aluminate are any in expansion material and the lime expansion material.
In 100 parts of materials, the usage quantity of expansion material is preferably 1～5 part.If less than 1 part, shrink and reduce weak effect, if surpass 5 parts, not only do not reach to shrink and reduce effect, also can reduce compressive strength.
The retarding agent that condenses that uses among the present invention is the retarding agent of the adjustment condensation cure of rapidly-curable mortar, contains in organic acid and the alkaline carbonate one or more.
Organic acid can be enumerated an alkali metal salts such as the hydroxycarboxylic acid of citric acid (anhydrous), tartrate and gluconic acid etc. or their salt etc.With respect to 100 parts in conjunction with material, the usage quantity of organic acid is preferably 0.1～0.3 part.Less than 0.1 part, can not control set time sometimes, if surpass 0.3 part, manifesting property of intensity descends sometimes.
As basic metal carbonate, can enumerate carbonate such as Quilonum Retard, yellow soda ash and lime carbonate, hydrocarbonate such as sodium bicarbonate or saleratus.With respect to 100 parts in conjunction with material, the usage quantity of basic metal carbonate is preferably 0.3～0.8 part.If less than 0.3 part, sometimes do not reach the effect of the manifesting property of promotion intensity after the curing of institute's phase, if surpass 0.8 part, reduce early strength sometimes and manifest.
The dry shrinkage of the slip casting after the economization agent that uses among the present invention suppresses to solidify; and suppress fissured generation; and constitute the composition that reduces can be that (R is that carbonatoms is 4～6 alkyl with RO (AO) nH; A is that carbonatoms is 2～3 one or more alkene; n is 1～10 integer) the alkylene oxide affixture of lower alcohol of expression is the material of main body; can use also that { (X is the residue that contains the compound of 2～8 hydrogen bases to O (AO) nR}m with general formula X; AO is that carbon atom is 2～18 oxyalkylene group; R is a hydrogen atom; carbonatoms is 1～18 the hydrocarbon or the acyl group of carbonatoms 2～18; n is 30～1000, and m is 2～8) expression; and oxyalkylene group is the above polyoxyalkylene derivative of 60 moles of % etc.
With respect in conjunction with 100 parts of materials, the usage quantity of economization agent is preferably 1.3～3.8 parts.If less than 1.3 parts, it is poor sometimes that contraction reduces effect, if surpass 3.8 parts, reduces manifesting property of intensity sometimes.
Water reducer has effect that disperses cement and the effect that absorbs air, is the material that improves liquidity and gain in strength.Concrete, can enumerate the condenses of melamine sulfonate and the condenses of polycarboxylate etc.Flowability in order to obtain stipulating among the present invention will be used the polycarboxylate based water reducer at least.It all is pulverous that these water reducers can use, and also polycarboxylate based water reducer and other water reducers can be used in combination.
With respect in conjunction with 100 parts of materials, the usage quantity of polycarboxylate based water reducer is preferably 0.13～0.3 part.If less than 0.13 part, can not get the flowability stipulated sometimes, if surpass 0.3 part, reduce compressive strength sometimes, produce the separation of material.If during also with the melamine sulfonate based water reducer, be preferably 0.13～0.4 part, wherein, more preferably about 0.25 part.
Employed foaming substance among the present invention, there is no particular limitation, but in order to obtain the initial stage swelling property of slip casting, for producing the material of gas after mixing with water, can prevent the sedimentation phenomenon of slip casting by this effect, so can realize and the incorporate purpose of structure.As concrete example, can enumerate metal-powder or superoxide etc., wherein, preferred aluminium powder, but the surface of aluminium powder has reduced reactivity because easily oxidized and oxidized film covers, and therefore preferably carries out the surface-treated aluminium powder with vegetables oil, mineral oil or stearic acid etc.
With respect in conjunction with 100 parts of materials, the usage quantity of foaming substance is preferably 0.0013～0.004 part.If less than 0.0013 part, swell increment becomes very little sometimes, if surpass 0.004 part, the quantitative change of expanding sometimes is big, strength degradation.
The tackifier that use among the present invention are used to adjust the viscosity of mortar, and there is no particular limitation, can use commercially available tackifier, can enumerate methylcellulose gum, carboxymethyl cellulose, polyvinyl alcohol, polyacrylic acid or its sodium salt or calcium salt and polyoxyethylene etc.
With respect in conjunction with 100 parts of materials, the usage quantity of tackifier is preferably 0.001～0.004 part.If less than 0.001 part, can not effectively prevent bleeding sometimes, if surpass 0.004 part, reduce mobile sometimes.
Use the density of ferrochrome slag etc. to be 3.0g/cm as the fine aggregate that uses among the present invention
3Above heavy aggregate.Preferred its maximum particle diameter is below the 5.0mm.
With respect in conjunction with 100 parts of materials, the usage quantity of fine aggregate is preferably 100～200 parts.If less than 100 parts, it is big to shrink quantitative change sometimes, if surpass 200 parts, reduces intensity or flowability sometimes.
The present invention is not substantially destroying in the scope of the object of the invention except mentioned component, can use anion ion exchange body of mineral clays such as defoamer, wilkinite and hydrotalcite etc. etc.
Among the present invention, the mixing grouting that is mixed with the picture above-mentioned materials is modulated into slip casting with cement mortar composition and water.
There is no particular limitation for the water of mixing usefulness, but with respect in conjunction with 100 parts of materials, be preferably 31～36 parts.Beyond this scope, mobile sometimes difference or generating material separate, and reduce manifesting property of intensity.
There is no particular limitation for the blending means of each material among the present invention, can mix various materials when construction, also can be pre-mixed part or all.
Can use existing any device as mixing device.For example, tilted mixer, refiner, Henschel mixer, V-type agitator and Nautamixer etc.
Below enumerate explanation the present invention that embodiment further has, but the present invention is not subjected to the qualification of these embodiment.
Embodiment 1
With 100 parts in conjunction with containing the quick curing agent shown in the table 1 (amount of cement is for deducting the amount of quick curing agent from 85 parts) in the material, 10 parts of volcanic ash micropowders, 2.5 parts of 2.5 parts of expansion materials and micropowder cement, then with respect to 100 parts mix 0.75 part the retarding agent that condenses in conjunction with material, 2.5 the economization agent of part, 0.25 the melamine sulfonate based water reducer of part, 0.2 the polycarboxylate based water reducer of part, 0.0025 the foaming substance of part, 0.003 tackifier of part and 150 parts fine aggregate are made the grouting cement mortar composition, reinstate the high speed hand mixer with 34 parts water one then and carry out the mixing slip casting of making, measure its flowability, bleeding rate, cubical expansivity and compressive strength.The result adds up in table 1.
Materials used:
Cement: ordinary Portland cement, density 3.15g/cm
3, commercially available
Quick curing agent: calcium aluminium silicate glass/dehydrated gyp-
1/1 (mass ratio) density 2.94g/cm
3
Volcanic ash micropowder: the zirconic silica flour (commercially available product) of originating
Expansion material: calcium sulphoaluminate system
Micropowder cement: the pulverizing of ordinary Portland cement, classification product, mean particle size 10 μ m
Retarding agent condenses: citric acid (anhydrous) 25%; Lime carbonate 75%
Economization agent: polyoxyethylene glycol is an economization agent, commercially available product
Water reducer: A melamine sulfonate based water reducer, commercially available product
B polysulfonate based water reducer, commercially available product
Foaming substance: metallic aluminium powder, commercially available product
Tackifier: methylcellulose gum is tackifier, commercially available product
Fine aggregate: ferrochrome slag, density 3.20g/cm
3, below the 4mm
Measuring method:
Mobile: as " to fill the fluidity test method of slip casting " according to the building association standard side of showing book (JSCE-F541-1999) and measure J
14The funnel value of flowing down.
Bleeding rate: " fill the bleeding rate and the swelling rate test method of slip casting " according to the building association standard side of showing book (JSCE-F542-1999) and measure bleeding.
Length variations: according to the building association standard side of showing book (JSCE-F542-1999) " the swell test method of being undertaken by the mortar of expansion material ", in 20 ℃, the thermostatic constant wet chamber of 80%RH, cast slip casting pour into a mould mensuration after one day to formwork.Then, in curing in water after 7 days, behind 20 ℃, thermostatic constant wet chamber's slaking of 60%RH, measure.
Cubical expansivity: according to the building association standard side of showing book (JISA-6202-1197) bleeding rate and the swelling rate test method of slip casting " fill ", in 20 ℃, the thermostatic constant wet chamber of 80%RH, cast slip casting pour into a mould mensuration after one day to formwork.
Compressive strength: " fill the compressive strength test method of slip casting " according to the building association standard side of showing book (JSCE-G541-1999), in 20 ℃, the thermostatic constant wet chamber of 80%RH, cast slip casting is to formwork, measure the intensity (table 1) after 6 hours, right after one day after to measure material age 20 ℃ of curings in water be 28 days compressive strength.
Table 1
| Test No. | Quick curing agent (part) | Mobile (second) | Bleeding rate (%) | Cubical expansivity (%) | 6 hours compressive strength (N/mm of material age 2) | Remarks |
| 1-1 | 0 | 9.8 | 0.0 | +0.47 | - | Comparative example |
| 1-2 | 9 | 9.2 | 0.0 | +0.45 | 3.5 | Embodiment |
| 1-3 | 12 | 8.5 | 0.0 | +0.45 | 4.8 | Embodiment |
| 1-4 | 15 | 7.8 | 0.0 | +0.45 | 7.2 | Embodiment |
| 1-5 | 18 | 7.4 | 0.0 | +0.48 | 10.2 | Embodiment |
| 1-6 | 21 | 7.2 | 0.0 | +0.49 | 14.2 | Embodiment |
| 1-7 | 25 | 7.0 | 0.0 | +0.50 | 16.5 | Embodiment |
-for not measuring
As can be seen from Table 1, contain the slip casting of the embodiment of quick curing agent, have good flowability, do not have bleeding, low-shrinkage, the compressive strength height (test No.1-2～1-7).In contrast, do not contain the slip casting of the comparative example of quick curing agent, reduced manifesting property of intensity (test No.1-1).
Embodiment 2
Except making in conjunction with containing in 100 parts of the materials the volcanic ash micropowder shown in 18 parts of quick curing agents and the table 2, similarly to Example 1 make slip casting after, measure.The result is aggregated in the table 2.
Table 2
| Test No. | Volcanic ash micropowder (part) | Mobile (second) | Bleeding rate (%) | Cubical expansivity (%) | 28 days compressive strength (N/mm of material age 2) | Remarks |
| 2-1 | 0 | 0.05 | +0.30 | 65.8 | Comparative example | |
| 2-2 | 5 | 9.8 | 0.0 | +0.32 | 64.4 | Embodiment |
| 1-5 | 10 | 7.4 | 0.0 | +0.48 | 64.8 | Embodiment |
| 2-3 | 15 | 6.2 | 0.0 | +0.54 | 64.5 | Embodiment |
-for not measuring
As can be seen from Table 2, contain the slip casting of the embodiment of volcanic ash micropowder, have good flowability, do not have bleeding, shrinkability is low, compressive strength height (test No.2-2,1-5,2-3).In contrast, do not contain the slip casting of the comparative example of volcanic ash micropowder, reduced mobile (test No.2-1).
Embodiment 3
Contain 18 parts of quick curing agents except making in conjunction with in 100 parts of the materials, with respect in conjunction with outside the retarding agent that condenses shown in 100 parts of interpolation tables 3 of material, similarly to Example 1 make slip casting after, measure.The result is aggregated in the table 3.
Table 3
| Test No. | Retarding agent (part) condenses | Mobile (second) | Bleeding rate (%) | Time of coagulation (branch) | 6 hours compressive strength (N/mm of material age 2) | Remarks |
| 3-1 | 0.37 | 7.8 | 0.0 | 30 | 16.2 | Embodiment |
| 3-2 | 0.50 | 7.5 | 0.0 | 41 | 14.5 | Embodiment |
| 3-3 | 0.63 | 7.8 | 0.0 | 55 | 14.2 | Embodiment |
| 1-5 | 0.75 | 7.4 | 0.0 | 78 | 10.2 | Embodiment |
| 3-4 | 0.88 | 7.2 | 0.0 | 115 | 8.4 | Embodiment |
As can be seen from Table 3, add the slip casting of the embodiment of the retarding agent that condenses, have good flowability, do not have bleeding, have suitable time of coagulation, the compressive strength height.
Embodiment 4
Contain 18 parts of quick curing agents except making in conjunction with in 100 parts of the materials, with respect to adding outside the economization agent shown in the table 4 in conjunction with 100 parts of materials, similarly to Example 1 make slip casting after, measure.The result is aggregated in the table 4.
Table 4
| Test No. | Economization agent (part) | Mobile (second) | Bleeding rate (%) | Tensile strain rate (* 10 -6) | Cubical expansivity (%) | 28 days compressive strength (N/mm of material age 2) | Remarks |
| 4-1 | 0 | 9.8 | 0.0 | -200 | +0.30 | 70.2 | Embodiment |
| 4-2 | 1.3 | 9.2 | 0.0 | -50 | +0.32 | 69.4 | Embodiment |
| 1-5 | 2.5 | 7.4 | 0.0 | +30 | +0.48 | 64.8 | Embodiment |
| 4-3 | 3.8 | 6.2 | 0.0 | +74 | +0.54 | 60.5 | Embodiment |
Tensile strain rate (material age 28 earnings in a day)
Embodiment 5
Contain 18 parts of quick curing agents except making in conjunction with in 100 parts of the materials, with respect to adding in conjunction with 100 parts of materials outside 0.25 part the melamine sulfonate based water reducer and the system of the polycarboxylic acid series diminishing shown in the table 5, similarly to Example 1 make slip casting after, measure.The result is aggregated in the table 5.
Table 5
| Test No. | Water reducer (part) | Mobile (second) | Bleeding rate (%) | 28 days compressive strength (N/mm of material age 2) | Material separation | Remarks |
| 5-1 | 0 | - | 0.0 | 66.3 | Do not have | Comparative example |
| 5-2 | 0.13 | 9.4 | 0.0 | 64.9 | Do not have | Embodiment |
| 5-3 | 0.15 | 8.6 | 0.0 | 65.4 | Do not have | Embodiment |
| 1-5 | 0.20 | 7.4 | 0.0 | 64.8 | Do not have | Embodiment |
| 5-4 | 0.25 | 6.9 | 0.0 | 63.9 | Do not have | Embodiment |
| 5-5 | 0.30 | 6.2 | 0.0 | 65.4 | Do not have | Embodiment |
Polycarboxylate based water reducer (part) ,-for not measuring
As can be seen from Table 5, be added with the slip casting of the embodiment of polycarboxylate based water reducer, have good flowability, do not have bleeding, compressive strength height (test No.5-2～5-5,1-5).In contrast, do not add the slip casting of the comparative example of polycarboxylate based water reducer, reduced mobile (test No.5-1).
Embodiment 6
Contain 18 parts of quick curing agents except making in conjunction with in 100 parts of the materials, with respect to adding outside the foaming substance shown in the table 6 in conjunction with 100 parts of materials, similarly to Example 1 make slip casting after, measure.The result is aggregated in the table 6.
Table 6
| Test No. | Foaming substance (part) | Mobile (second) | Bleeding rate (%) | Cubical expansivity (%) | 28 days compressive strength (N/mm of material age 2) | Remarks |
| 6-1 | 0 | 7.6 | 0.0 | -0.35 | 65.0 | Embodiment |
| 6-2 | 0.0013 | 7.5 | 0.0 | +0.11 | 65.1 | Embodiment |
| 6-3 | 0.0019 | 7.6 | 0.0 | +0.35 | 65.4 | Embodiment |
| 1-5 | 0.0025 | 7.4 | 0.0 | +0.48 | 64.8 | Embodiment |
| 6-4 | 0.0033 | 7.7 | 0.0 | +0.56 | 63.8 | Embodiment |
| 6-5 | 0.0040 | 7.4 | 0.0 | +0.69 | 62.6 | Embodiment |
Embodiment 7
Contain 18 parts of quick curing agents except making in conjunction with in 100 parts of the materials, with respect to adding outside the tackifier shown in the table 7 in conjunction with 100 parts of materials, similarly to Example 1 make slip casting after, measure.The result is aggregated in the table 7.
Table 7
| Test No. | Tackifier | Mobile (second) | Bleeding rate (%) | Cubical expansivity (%) | 28 days compressive strength (N/mm of material age 2) | Remarks |
| 7-1 | 0 | 5.2 | 0.08 | +0.55 | 65.1 | Embodiment |
| 7-2 | 0.001 | 6.5 | 0.03 | +0.54 | 64.9 | Embodiment |
| 1-5 | 0.003 | 7.4 | 0.0 | +0.48 | 64.8 | Embodiment |
| 7-3 | 0.004 | 9.6 | 0.0 | +0.30 | 62.3 | Embodiment |
Embodiment 8
Contain 18 parts of quick curing agents except making in conjunction with in 100 parts of the materials, with respect to adding outside the fine aggregate shown in the table 8 in conjunction with 100 parts of materials, similarly to Example 1 make slip casting after, measure.The result is aggregated in the table 8.
Table 8
| Test No. | Fine aggregate (part) | Mobile (second) | Bleeding rate (%) | Cubical expansivity (%) | 28 days compressive strength (N/mm of material age 2) | Remarks |
| 8-1 | 100 | 9.7 | 0.0 | +0.53 | 77.0 | Embodiment |
| 1-5 | 150 | 7.4 | 0.0 | +0.48 | 64.8 | Embodiment |
| 8-2 | 175 | 8.5 | 0.0 | +0.31 | 59.8 | Embodiment |
| 8-3 | 200 | 9.5 | 0.0 | +0.35 | 55.4 | Embodiment |
Embodiment 9
Contain 18 parts of quick curing agents except making in conjunction with in 100 parts of the materials, with respect to adding outside the water shown in the table 9 in conjunction with 100 parts of materials, similarly to Example 1 make slip casting after, measure.The result is aggregated in the table 9.
Table 9
| Test No. | Water (part) | Mobile (second) | Bleeding rate (%) | Cubical expansivity (%) | 28 days compressive strength (N/mm of material age 2) | Remarks |
| 9-1 | 30 | 12.6 | 0.0 | +0.33 | 75.5 | Embodiment |
| 9-2 | 32 | 8.8 | 0.0 | +0.35 | 70.9 | Embodiment |
| 1-5 | 34 | 7.4 | 0.0 | +0.48 | 64.8 | Embodiment |
| 9-3 | 36 | 6.3 | 0.0 | +0.52 | 63.7 | Embodiment |
| 9-4 | 38 | 5.1 | 0.0 | +0.55 | 55.9 | Embodiment |
Embodiment 10
Blended slip casting among the test No.1-5 is carried out being fallen and shock-resistance test of carrying out and the abrasion loss test of being undertaken by the taper wear testing machine by steel ball.As a comparison, in test No.1-5 mixing, with lime sand (density 2.60g/cm
3) substitute the slip casting of heavy aggregate and test with the slip casting of other companies of iron powder pastern bone material.The results are shown in the table 10.
Measuring method
Shock-resistance test: test body size 150 * 150 * 50mm
Ball size Φ 100mm * 4kg
Height of fall 1m
Abrasion test: taper wear test (weight minimizing method)
Heavy burden 1kg
Abrasion wheel H-22
Test number (TN) 1000 times
Table 10
| Test No. | Aggregate | Mobile (second) | 28 days compressive strength (N/mm of material age 2) | Shock-resistance drop number (inferior) | Wearability wear loss (g) | Remarks |
| 1-5 | The ferrochrome slag | 7.4 | 64.8 | 160 | 2.7 | Embodiment |
| 10-1 | Lime sand | 8.0 | 60.7 | 70 | 5.8 | Comparative example |
| 10-2 | Iron powder system | 6.4 | 62.7 | 120 | 2.9 | Comparative example |
As can be seen from Table 10, contain the slip casting of the embodiment of heavy aggregate, have good flowability, the compressive strength height has excellent in impact resistance and wearability (test No.1-5).In contrast, do not have heavy aggregate and contain the slip casting of the comparative example of lime sand, compressive strength is low, shock-resistance, wearability poor (test No.10-1).In addition, slip casting of the present invention is than the commercially available product that contains heavy aggregate (No.10-2), and characteristic is also excellent.
Utilization on the industry
The compo that uses grouting of the present invention to form with cement mortar composition, can obtain aforesaid good fluidity, high strength, high-durability and low-shrinkage, can aspect building, building, particularly in the structures of Mechanical Fundamentals etc., use.
Claims (11)
1. grouting cement mortar composition, it forms by containing in conjunction with material, the retarding agent that condenses, water reducer and fine aggregate, it is characterized in that, described quick curing agent and the volcanic ash micropowder that forms by cement, calcium aluminium silicate glass and gypsum that contain in conjunction with material, described water reducer contains the polycarboxylate based water reducer at least, and described fine aggregate is density 3.0g/cm
3Above heavy aggregate.
2. grouting cement mortar composition according to claim 1, wherein, described volcanic ash micropowder is that dioxide-containing silica is more than 90% and the siliceous micropowder of hydrogen ion concentration in acidic region.
3. grouting cement mortar composition according to claim 1 and 2, wherein, described cement contains by fractionated micropowder cement.
4. according to each described grouting cement mortar composition in the claim 1～3, wherein, describedly further contain the expansion material in conjunction with material.
5. grouting cement mortar composition according to claim 4, wherein, described expansion material is that the Bo Shi value is 4000cm
2The above calcium sulphoaluminate of/g is the expansion material.
6. according to each described grouting cement mortar composition in the claim 1～5, wherein, described water reducer further contains the melamine sulfonate based water reducer.
7. according to each described grouting cement mortar composition in the claim 1～6, wherein, further contain economization agent.
8. according to each described grouting cement mortar composition in the claim 1～7, wherein, further contain foaming substance.
9. according to each described grouting cement mortar composition in the claim 1～8, wherein, further contain tackifier.
10. a slip casting is characterized in that, forms with cement mortar composition and water by each described grouting in the mixing claim 1～9.
11. slip casting according to claim 10, wherein, with respect to 100 parts in conjunction with material, water is 31～36 parts.
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| Publication number | Publication date |
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| JPWO2008059605A1 (en) | 2010-02-25 |
| WO2008059605A1 (en) | 2008-05-22 |
| JP5154435B2 (en) | 2013-02-27 |
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