CN108264299A - A kind of pump structure haydite concrete of high stability and preparation method thereof - Google Patents
A kind of pump structure haydite concrete of high stability and preparation method thereof Download PDFInfo
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- CN108264299A CN108264299A CN201810300817.9A CN201810300817A CN108264299A CN 108264299 A CN108264299 A CN 108264299A CN 201810300817 A CN201810300817 A CN 201810300817A CN 108264299 A CN108264299 A CN 108264299A
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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
- C04B28/04—Portland cements
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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
- C04B2111/00008—Obtaining or using nanotechnology related materials
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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
- C04B2111/00146—Sprayable or pumpable mixtures
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of pump structure haydite concrete of high stability and preparation method thereof, which includes the raw material of following parts by weight：100 parts of cement, 10 25 parts of flyash, 0 35 parts of miberal powder, 5 12 parts of silicon ash, 120 160 parts of artificial sand, 145 200 parts of haydite, 0 60 parts of pottery sand, 1.0 2.2 parts of pumping admixture, 0.8 1.5 parts of cellulose fibre, 1 2.5 parts of rubbing agent, 0.08 0.18 parts of viscosity modifier, 38 55 parts of water.The present invention is by rationally adding in pumping admixture, rubbing agent, viscosity modifier; and haydite and pottery sand are impregnated using hydrophobic interleaving agent; effectively solve haydite concrete in production, transport, haydite easily floats in pumping procedure, and then the technical barriers such as leads to layering that concrete occurs, isolate, be not easy to pump.
Description
Technical field
The present invention relates to technical field of concrete production, more particularly to a kind of pump structure haydite coagulation of high stability
Soil and preparation method thereof.
Background technology
As country is to wall reform and Building Energy-saving Work pay attention to day by day and support, wall application mainly from from heavy and light,
Energy-saving heat preserving performance is good, high-strength durable, safe and sustainable development direction are designed and apply.Haydite concrete is made
For a kind of lightweight aggregate concrete for having good thermal and insulating performance, widely applied in engineering, particularly full lightweight concrete
In building roof, flooring largely success is had been achieved for used as insulating layer.Haydite concrete gentlier exists because of own wt
1/4-1/5 is reduced compared with normal concrete weight in the case of same intensity, is increasingly being used for Loads of Long-span Bridges to reduce knot
Structure is conducted oneself with dignity.Therefore in recent years, high-strength lightweight aggregate concrete does building structure use and just gradually obtains vast set with its unique advantage
The favor of meter person.But property itself is influenced by light aggregate concrete raw material, and compared with normal concrete, haydite
The pumping of concrete is poor, and the haydite concrete of most Concrete Mixing Station production is extremely difficult to wanting for pumping construction
It asks.Wherein main cause has：1. haydite density is smaller, easily floats, be layered, isolate in production, transport, pumping procedure；2.
Haydite belongs to internal porous material, and water absorption rate is high, causes haydite concrete working condition when going out machine good, is transported to presence states
It is deteriorated；3. slurry and moisture content are easily accessible haydite internal holes in the case of being pumped in pumping procedure, concrete is caused to be mixed
Physical performance mutation is closed, mobility, wrapping property are deteriorated, and integrally become dry and astringent, so as to cause pumping difficulties even plugging.Haydite coagulation
Native unit weight is smaller, the mobility the big more is susceptible to the above problem.The dosage of structure ceramisite concrete is generally large, can not carry out
Pumping construction, this will seriously hinder application of the haydite concrete in Structural Engineering, this is also that current structure ceramisite concrete is used
In the less one of the major reasons of building structure case.
Invention content
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of pump structures of high stability
Haydite concrete and preparation method thereof, for solve in the prior art concrete flowability and wrapping property it is poor, production, transport,
It easily floats, be layered, isolate in pumping procedure, it is difficult to reach pumping.
In order to achieve the above objects and other related objects, first aspect present invention provides a kind of pump structure of high stability
Haydite concrete includes the raw material of following parts by weight：100 parts of cement, 10-25 parts of flyash, 0-35 parts of miberal powder, silicon ash 5-12
Part, 120-160 parts of artificial sand, 145-200 parts of haydite, 0-60 parts of pottery sand, 1.0-2.2 parts of pumping admixture, cellulose fibre 0.8-1.5
Part, 1-2.5 parts of rubbing agent, 0.08-0.18 parts of viscosity modifier, 38-55 parts of water.
Preferably, include the raw material of following parts by weight：100 parts of cement, 10-18 parts of flyash, 20-30 parts of miberal powder, silicon ash
5-11 parts, 125-150 parts of artificial sand, 147-200 parts of haydite, 0-50 parts of pottery sand, 1.2-2.1 parts of pumping admixture, cellulose fibre
0.9-1.4 parts, 1.1-2.3 parts of rubbing agent, 0.09-0.17 parts of viscosity modifier, 38-55 parts of water.
In some embodiments of the invention, the cement is 42.5 Portland cements, and the flyash is I grade of powder
Coal ash, miberal powder are S95 miberal powders, and material of the fineness less than 1 μm accounts for more than 80wt% in silicon ash, and average grain diameter is 0.1-0.3 μm.
In some embodiments of the invention, the artificial grain fineness number modulus is 2.5-2.7, and particle size range is in 0.15-
The material of 0.3mm is not less than 15wt%, and MB values are less than 1.4, and content of stone powder is not more than 7wt%.
In some embodiments of the invention, the haydite is selected from leca, lytag, haydites of book structure, mud
At least one of haydite, shape are spheroidal or gravel, and grain size is less than 15mm, bulk density 600-950kg/
m3, cylindrical compress strength is more than 4.0MPa.
In some embodiments of the invention, the pottery sand grain size is less than 4.75mm, and grain size is the material of 0.15-1.18mm
Account for more than 65wt%.
In some embodiments of the invention, the pumping admixture is pasted by polycarboxylate water-reducer, retarder, air entraining agent, malt
Essence, water composition, the air entraining agent are fatty alcohol sulfonate class air entraining agent.
In some embodiments of the invention, the pumping admixture is purchased from Jiangsu Su Bote new materials Co., Ltd, model
SBT-A, the pumping admixture are made of polycarboxylate water-reducer, retarder, air entraining agent, maltodextrin, water, and air entraining agent is fatty alcohol sulfonic acid
Salt air entraining agent.
In some embodiments of the invention, cellulosic fiber lengths 20-45mm, line density are 600 Tekes.
In some embodiments of the invention, the rubbing agent includes benzene sulfonic acid sodium salt, 1,2-dichloroethene, nano-calcium carbonate
Calcium.
In some embodiments of the invention, the nano-calcium carbonate BET specific surface area is 40-55m2/g。
In some embodiments of the invention, by weight, benzene sulfonic acid sodium salt in the rubbing agent：1,2-dichloroethene：It receives
Rice calcium carbonate=1:2:1.5.
In some embodiments of the invention, the viscosity modifier is selected from hydroxypropyl methyl cellulose, redispersible breast
At least one of rubber powder.
In some embodiments of the invention, hydroxypropyl methyl cellulose and Redispersable latex in the viscosity modifier
The weight ratio of powder is 1:3.
In some embodiments of the invention, 100 mesh percent of pass of the hydroxypropyl methyl cellulose are more than 100%, than
Weight 1.26-1.31g/cm3, 2% aqueous solution surface tension is 42-50mN/m, and methoxyl content is more than 35%.
In some embodiments of the invention, the redispersable latex powder is vinylacetate, acrylate, advanced fat
Fat vinyl acetate is copolymerized the ternary polymerization rubber powder to be formed, and carbonyl content is not less than 40%, bulk density 400-500g/cm3, put down
Equal 90 μm of grain size, viscosity are more than 2000Pas.
Second aspect of the present invention provides the preparation method of above-mentioned pumping structure ceramisite concrete, includes the following steps：
S1, haydite, pottery sand are soaked in water, then draining to haydite, pottery sand is in saturated dry surface；
S2, the haydite of saturated dry surface obtained in step S1, pottery sand are put into hydrophobic interleaving agent and carried out at immersion
Reason, then draining to surface without bright water；
S3, haydite obtained in cellulose fibre, rubbing agent, step S2, pottery sand are mixed by formula ratio, it is spare；
S4, cement, flyash, miberal powder, silicon ash, viscosity modifier are mixed by formula ratio, it is spare；
S5, material obtained in haydite obtained in artificial sand, step S3 and pottery sand, step S4 is mixed by formula ratio,
It is spare；
In S6, the material as made from formula ratio by pumping admixture, water addition step S5, stir evenly, the high stable is made
The pump structure haydite concrete of property.
In some embodiments of the invention, in the step S2, in hydrophobic interleaving agent polysiloxanes with it is stearic heavy
Amount is than being (2.5-4)：1, hydrophobic interleaving agent plays the role of sealing process to the hole of haydite, can particularly subtract under pumping pressure
Few cement slurry enters in haydite inner void, ensure that the cement slurry volume that package, mobilization are played in concrete；Secondly, hate
Water effect can reduce uptake of the haydite to Free water in concrete, to ensure the workability of concrete.Polysiloxanes with it is hard
The weight ratio of resin acid crosses conference and negative impact is brought to concrete strength, and the too small closing that can lead to hole under pump pressure of ratio is imitated
Fruit weakens.
In some embodiments of the invention, in the step S1, haydite, pottery sand soaking time for for 24 hours.
In some embodiments of the invention, in the step S2, mass concentration≤10% of the hydrophobic interleaving agent.
In some embodiments of the invention, in the step S2, the mass concentration of the hydrophobic interleaving agent is 10%.
In some embodiments of the invention, in the step S2, soaking time >=1h.
In some embodiments of the invention, in the step S2, soaking time 1h.
In some embodiments of the invention, the stirring of the step S3-S6 in two shaft pugmill mixer into
Row.
As described above, a kind of pump structure haydite concrete of high stability and preparation method thereof of the present invention, have with
Lower advantageous effect：The present invention using rubbing agent, viscosity modifier by the modification before haydite use, increasing haydite and water
Frictional resistance between slurry body achieves effective control the haydite that haydite concrete generates in transport, pumping procedure and floats, divides
From serious phenomenon；In addition, adding in a small amount of cellulose fibre, acted on using the physical entanglement of cellulose fibre, keep haydite and water
Globality between slurry body so that concrete has good homogeneity, and the present invention passes through two aspect of physics and chemical action
Means, from concrete, solve structure ceramisite concrete in itself and be not easy to pump this technical barrier.
If not using natural sand, existing concrete is difficult to reach construction requirement, under normal circumstances, does not use natural sand
Concrete can so that the workability of concrete is poor, lead to the homogeneity artificial sand that is bad, and being used in the present invention of concrete
There is special condition requirement, artificial grain fineness number modulus is 2.5-2.7, and material of the particle size range in 0.15-0.3mm is not less than
15wt%, MB value are less than 1.4, and content of stone powder is not more than 7wt%, there is a requirement that lower preparation obtains the good coagulation of workability energy
Soil, the fine aggregate that structure ceramisite concrete produced by the present invention uses are all artificial sand, without using natural sands such as river sands, reduce day
The exploitation of right resource has positive effect to environmental protection.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
It should be clear that in the following example not specifically dated process equipment or device using conventional equipment in the art or
Device；All pressure values and range are all referring to absolute pressure.
In addition, it should also be understood that, one or more method and step mentioned in the present invention does not repel before and after the combination step
Other methods step can also be inserted into there may also be other methods step or between the step of these are specifically mentioned, unless separately
It is described；It should also be understood that the combination connection relation between one or more equipment/device mentioned in the present invention is not repelled
The front and rear two equipment/devices specifically mentioned there may also be other equipment/device or at these of the unit equipment/device it
Between can also be inserted into other equipment/device, unless otherwise indicated.Moreover, unless otherwise indicated, the number of various method steps is only
Differentiate the convenient tool of various method steps rather than the ordering for limitation various method steps or the enforceable model of the restriction present invention
It encloses, relativeness is altered or modified, and in the case where changing technology contents without essence, when being also considered as, the present invention is enforceable
Scope.
In following embodiment, pumping admixture be purchased from Jiangsu Su Bote new materials Co., Ltd, model SBT-A, the pumping admixture by
Polycarboxylate water-reducer, retarder, air entraining agent, maltodextrin, water composition, air entraining agent are fatty alcohol sulfonate class air entraining agent.
Redispersable latex powder is the amber board Redispersable latex purchased from Huzhou Mei Xin Hopes bio tech ltd
Powder.
By weight, benzene sulfonic acid sodium salt in rubbing agent：1,2-dichloroethene：Nano-calcium carbonate=1:2:1.5.
The weight ratio of hydroxypropyl methyl cellulose and redispersable latex powder is 1 in viscosity modifier:3.
In following embodiment, the mass concentration of hydrophobic interleaving agent is 10%, which crosses conference to the strong of concrete
Degree is brought a negative impact, too small, and extension soaking time is needed to can be only achieved corresponding optimum efficiency, and 10% is that experiment determines
Optium concentration.
Certainly, for interleaving agent of surging, less than 10% mass concentration is suitable for of the invention, preferably 2-10%, more
Preferably 5-10%, more preferably 8-10%, more preferably 10%.
Embodiment 1
A kind of pump structure haydite concrete of high stability includes the raw material of following parts by weight：
100 parts of cement, 18 parts of flyash, 5 parts of silicon ash, 150 parts of artificial sand, 200 parts of haydite, 50 parts of pottery sand, pumping admixture 1.2
Part, 1.4 parts of cellulose fibre, 2.3 parts of rubbing agent, 0.17 part of viscosity modifier, 55 parts of water.
The preparation method of concrete includes the following steps in the present embodiment：
S1, haydite, pottery sand are soaked in water, impregnated for 24 hours, then draining to haydite, pottery sand is in saturated dry surface；
S2, the self-control hydrophobic interleaving agent that the haydite of the saturated dry surface in step S1, pottery sand are put into a concentration of 10%
(polysiloxanes and stearic weight ratio are 2.5 to solution in hydrophobic interleaving agent:1, polysiloxanes is with stearic total weight whole
Accounting in a aqueous solution weight is 10%, which crosses conference and the intensity of concrete is brought a negative impact, too small, needs
Extend soaking time and can be only achieved corresponding optimum efficiency, this is also the determining optium concentration of experiment) in impregnate 1h, then draining
To surface without bright water；
S3, by formula ratio by S2 haydite, pottery sand be put into blender, add rubbing agent and cellulose fibre mixed
It closes, stirs 30 seconds, it is spare；
S4, cement, flyash, silicon ash, viscosity modifier are put into aforementioned blender by formula ratio, are sufficiently stirred mixing；
S5, the haydite handled well, the artificial sand in S3 are added in the powder being uniformly mixed in step S4 and mixed by formula ratio
With it is uniform；
S6, by formula ratio by whole pumping admixtures, account for total dosage 85% (weight) water add in step S5 resulting materials in, stir
It mixes uniformly, concrete is made, it is spare；
In S7, the concrete as made from formula ratio by the water addition S6 of residue 15%, stir evenly, high stability is made
Pump structure haydite concrete.
Above-mentioned steps S3-S7 is carried out in commerical ready-mixed concrete stirring production line using two shaft pugmill mixer.
Embodiment 2
A kind of pump structure haydite concrete of high stability includes the raw material of following parts by weight：
100 parts of cement, 15 parts of flyash, 10 parts of miberal powder, 5 parts of silicon ash, 142 parts of artificial sand, 186 parts of haydite, 29 parts of pottery sand,
1.6 parts of pumping admixture, 1.15 parts of cellulose fibre, 1.7 parts of rubbing agent, 0.16 part of viscosity modifier, 50 parts of water.
The preparation method of concrete includes the following steps in the present embodiment：
S1, haydite, pottery sand are soaked in water, impregnated for 24 hours, then draining to haydite, pottery sand is in saturated dry surface；
S2, the haydite of the saturated dry surface in step S1, pottery sand are put into mass concentration be 10% self-control hydrophobic every
From agent, (polysiloxanes and stearic weight ratio are 3 in hydrophobic interleaving agent:1) in impregnate 1h, then draining to surface without bright water；
S3, by formula ratio by S2 haydite, pottery sand be put into blender, add rubbing agent and cellulose fibre mixed
It closes, stirs 30 seconds, it is spare；
S4, cement, flyash, miberal powder, silicon ash, viscosity modifier are put into aforementioned blender by formula ratio, are sufficiently stirred
Mixing；
S5, the haydite handled well, the artificial sand in S3 are added in the powder being uniformly mixed in step S4 and mixed by formula ratio
With it is uniform；
S6, by formula ratio by whole pumping admixtures, account for total dosage 85% (weight) water add in step S5 resulting materials in, stir
It mixes uniformly, concrete is made, it is spare；
In S7, the concrete as made from formula ratio by the water addition S6 of residue 15%, stir evenly, high stability is made
Pump structure haydite concrete.
Above-mentioned steps S3-S7 is carried out in commerical ready-mixed concrete stirring production line using two shaft pugmill mixer.
Embodiment 3
A kind of pump structure haydite concrete of high stability includes the raw material of following parts by weight：
100 parts of cement, 15 parts of flyash, 20 parts of miberal powder, 8 parts of silicon ash, 136 parts of artificial sand, 155 parts of haydite, pumping admixture 1.9
Part, 0.95 part of cellulose fibre, 1.3 parts of rubbing agent, 0.11 part of viscosity modifier, 40.5 parts of water.
The preparation method of concrete includes the following steps in the present embodiment：
S1, haydite is soaked in water, impregnated for 24 hours, then draining to haydite is in saturated dry surface；
S2, the haydite of the saturated dry surface in step S1 is put into the self-control hydrophobic interleaving agent that mass concentration is 10%
(polysiloxanes and stearic weight ratio are 3.5 in hydrophobic interleaving agent:1) in impregnate 1h, then draining to surface without bright water；
S3, the haydite in S2 is put into blender by formula ratio, adds rubbing agent and cellulose fibre is mixed, stir
It mixes 30 seconds, it is spare；
S4, cement, flyash, miberal powder, silicon ash, viscosity modifier are put into aforementioned blender by formula ratio, are sufficiently stirred
Mixing；
S5, the haydite handled well, the artificial sand in S3 are added in the powder being uniformly mixed in step S4 and mixed by formula ratio
With it is uniform；
S6, by formula ratio by whole pumping admixtures, account for total dosage 85% (weight) water add in step S5 resulting materials in, stir
It mixes uniformly, concrete is made, it is spare；
In S7, the concrete as made from formula ratio by the water addition S6 of residue 15%, stir evenly, high stability is made
Pump structure haydite concrete.
Above-mentioned steps S3-S7 is carried out in commerical ready-mixed concrete stirring production line using two shaft pugmill mixer.
Embodiment 4
A kind of pump structure haydite concrete of high stability includes the raw material of following parts by weight：
100 parts of cement, 10 parts of flyash, 35 parts of miberal powder, 11 parts of silicon ash, 125 parts of artificial sand, 147 parts of haydite, pumping admixture
2.1 parts, 0.9 part of cellulose fibre, 1.1 parts of rubbing agent, 0.09 part of viscosity modifier, 38 parts of water.
The preparation method of concrete includes the following steps in the present embodiment：
S1, haydite is soaked in water, impregnated for 24 hours, then draining to haydite is in saturated dry surface；
S2, the haydite of the saturated dry surface in step S1 is put into the self-control hydrophobic interleaving agent that mass concentration is 10%
(polysiloxanes and stearic weight ratio are 4 in hydrophobic interleaving agent:1) in impregnate 1h, then draining to surface without bright water；
S3, the haydite in S2 is put into blender by formula ratio, adds rubbing agent and cellulose fibre is mixed, stir
It mixes 30 seconds, it is spare；
S4, cement, flyash, miberal powder, silicon ash, viscosity modifier are put into aforementioned blender by formula ratio, are sufficiently stirred
Mixing；
S5, the haydite handled well, the artificial sand in S3 are added in the powder being uniformly mixed in step S4 and mixed by formula ratio
With it is uniform；
S6, by formula ratio by whole pumping admixtures, account for total dosage 85% (weight) water add in step S5 resulting materials in, stir
It mixes uniformly, concrete is made, it is spare；
In S7, the concrete as made from formula ratio by the water addition S6 of residue 15%, stir evenly, high stability is made
Pump structure haydite concrete.
Above-mentioned steps S3-S7 is carried out in commerical ready-mixed concrete stirring production line using two shaft pugmill mixer.
Comparative example
Comparative example is conventional structure haydite concrete, and proportioning is as shown in table 1 below.
The concrete mix of 1 comparative example of table
In table 1, thickener：Cellulose ether, 100,000 Pa*s of viscosity；Artificial sand：Common artificial sand, fineness modulus 2.8-3.1；
Natural sand：Fineness modulus 1.1-1.4；Other components are identical with embodiment.
Specifically preparation method is：Haydite, pottery sand are soaked in water, impregnated for 24 hours, then draining to haydite, pottery sand is in full
And surface dry condition, then, haydite, pottery sand with other components are mixed, conventional structure haydite concrete is made.
Pump structure haydite concrete performance test results made from 2 each embodiment of table and comparative example
As can be found from Table 2, it is of the invention to impregnate haydite, pottery sand by increasing fiber, rubbing agent and hydrophobic interleaving agent
High stability pump structure haydite concrete obtained achieves in terms of pumpable performance to be obviously improved, and particularly concrete exists
In terms of front and rear delamination degree and two big index of pressured bleeding is pumped, delamination degree, pressured bleeding are smaller, illustrate coagulation
The globality of haydite and slurry is better in soil, is more not readily separated, and entire concrete forms a kind of company of mortar package coarse aggregate
Continuous property fluid substance, this provides guarantee to pumping, avoids generation plugging phenomenon in pumping procedure.
In conclusion it is of the invention by rationally adding in pumping admixture, rubbing agent, viscosity modifier, and use hydrophobic interleaving agent
Impregnate haydite and pottery sand, effectively solve haydite concrete haydite in production, transport, pumping procedure easily float, be layered, from
The technical barriers such as analyse, be not easy to pump.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. the pump structure haydite concrete of a kind of high stability, which is characterized in that include the raw material of following parts by weight：Cement
100 parts, 10-25 parts of flyash, 0-35 parts of miberal powder, 5-12 parts of silicon ash, 120-160 parts of artificial sand, 145-200 parts of haydite, pottery sand
0-60 parts, 1.0-2.2 parts of pumping admixture, 0.8-1.5 parts of cellulose fibre, 1-2.5 parts of rubbing agent, viscosity modifier 0.08-0.18
Part, 38-55 parts of water.
2. pump structure haydite concrete according to claim 1, it is characterised in that：Include the raw material of following parts by weight：
100 parts of cement, 10-18 parts of flyash, 20-30 parts of miberal powder, 5-11 parts of silicon ash, 125-150 parts of artificial sand, 147-200 parts of haydite,
0-50 parts of pottery sand, 1.2-2.1 parts of pumping admixture, 0.9-1.4 parts of cellulose fibre, 1.1-2.3 parts of rubbing agent, viscosity modifier
0.09-0.17 parts, 38-55 parts of water.
3. pump structure haydite concrete according to claim 1 or 2, it is characterised in that：The artificial grain fineness number modulus
For 2.5-2.7, particle size range is not less than 15wt% in the material of 0.15-0.3mm, and MB values are less than 1.4, and content of stone powder is not more than
7wt%.
4. pump structure haydite concrete according to claim 1 or 2, it is characterised in that：The pumping admixture is purchased from Jiangsu
Su Bote new materials Co., Ltd, model SBT-A.
5. pump structure haydite concrete according to claim 1 or 2, it is characterised in that：The rubbing agent includes benzene sulphur
Sour sodium, 1,2-dichloroethene, nano-calcium carbonate；Preferably, by weight, benzene sulfonic acid sodium salt in the rubbing agent：1,2- bis- chloroethene
Alkene：Nano-calcium carbonate=1:2:1.5.
6. pump structure haydite concrete according to claim 5, it is characterised in that：The ratio of the nano-calcium carbonate BET
Surface area is 40-55m2/g。
7. pump structure haydite concrete according to claim 1 or 2, it is characterised in that：The viscosity modifier includes
Hydroxypropyl methyl cellulose, redispersable latex powder；Preferably, in the viscosity modifier hydroxypropyl methyl cellulose with can be again
The weight ratio of dispersed latex powder is 1:3.
8. pump structure haydite concrete according to claim 1 or 2, it is characterised in that：The cement is common for 42.5
Portland cement；
And/or the flyash is I grade of flyash；
And/or the miberal powder is S95 miberal powders；
And/or material of the fineness less than 1 μm accounts for more than 80wt% in the silicon ash, average grain diameter is 0.1-0.3 μm；
And/or the haydite is selected from least one of leca, lytag, haydites of book structure, mud ceramic granules；
And/or the length of cellulose fibre is 20-45mm, line density is 600 Tekes.
9. according to the preparation method of pump structure haydite concrete described in claim 1-8 any one, which is characterized in that including
Following steps：
S1, haydite, pottery sand are soaked in water, then draining to haydite, pottery sand is in saturated dry surface；
S2, it the haydite of saturated dry surface obtained in step S1, pottery sand is put into hydrophobic interleaving agent carries out immersion treatment, then
Draining is to surface without bright water；
S3, haydite obtained in cellulose fibre, rubbing agent, step S2, pottery sand are mixed by formula ratio, it is spare；
S4, cement, flyash, miberal powder, silicon ash, viscosity modifier are mixed by formula ratio, it is spare；
S5, material obtained in haydite obtained in artificial sand, step S3 and pottery sand, step S4 is mixed by formula ratio, it is spare；
In S6, the material as made from formula ratio by pumping admixture, water addition step S5, stir evenly, the high stability is made
Pump structure haydite concrete.
10. preparation method according to claim 9, it is characterised in that：In the step S1, haydite, pottery sand immersion when
Between for for 24 hours；
And/or in the step S2, polysiloxanes and stearic weight ratio are (2.5-4) in the hydrophobic interleaving agent：1；
And/or in the step S2, mass concentration≤10% of the hydrophobic interleaving agent, preferably 10%；
And/or in the step S2, soaking time >=1h, preferably 1h；
And/or the stirring of the step S3-S6 carries out in two shaft pugmill mixer.
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