CN109761549A - High-strength high fluidity haydite concrete - Google Patents
High-strength high fluidity haydite concrete Download PDFInfo
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- CN109761549A CN109761549A CN201910185257.1A CN201910185257A CN109761549A CN 109761549 A CN109761549 A CN 109761549A CN 201910185257 A CN201910185257 A CN 201910185257A CN 109761549 A CN109761549 A CN 109761549A
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Abstract
The invention discloses a kind of high-strength high fluidity haydite concrete, the cement for being 10~30 parts including parts by weight, 20~40 parts of sand; 10~40 parts of high-strength coarse aggregate, 20~60 parts of haydite, 6~10 parts of miberal powder; 1~3 part of additive, 1~3 part of polycarboxylic admixture；Wherein, the additive includes polyacrylamide, cellulose ether, dispersable adhesive powder, the polyacrylamide, cellulose ether, dispersable adhesive powder mass ratio be 2:2:1.Haydite concrete of the invention has the working performances such as outstanding physical strength and good pumpability.
Description
Technical field
The present invention relates to concrete preparation field, specifically a kind of high-strength high fluidity haydite concrete.
Background technique
With the raising that the mankind require living environment and natural environment, people are light for building and its composition material
The demand of the functions such as matter is high-strength, insulation, antidetonation fire resisting also becomes increasingly conspicuous.Building field march toward multifunctional direction development
During, a kind of construction material --- light-weight aggregate, because its can replace or part replace lithotome gather materials due to have it is multi-functional
The reason of property, to widely be paid close attention to by building field.Exactly in this sense, as product most commonly used in light-weight aggregate
Kind --- haydite has obtained large-scale application in the field of building materials, and haydite concrete is a hair of such application
Open up direction.
In general, the light weight 20~30% using haydite concrete than ordinary gravel concrete, and have lightweight height
By force, the functions such as insulation, antidetonation fire resisting.Compared with normal concrete, make beam, column and other load-bearing structures with haydite concrete
Part can reduce amount of reinforcement 20~25%；Generally mitigate dead load 20%.Therefore, skyscraper, deck paving,
Prefabricated cabinet etc. has a wide range of applications.Although haydite concrete still remains natural for such surpassingly performance
Defect, due to the property of haydite itself --- intensity is low and easy isolation, so haydite substitution stone material gathers materials in concrete
Afterwards, it is difficult to be being greatly reduced for concrete strength and pumpability with avoiding.
In haydite concrete research process, for the haydite concrete for obtaining higher-strength, the mode taken at present is mostly
It is realized by improving the intensity of haydite, and current good high-strength ceramsite is particularly severe to requirements such as raw material, equipment,
In terms of this, preparing high-strength ceramic granule, there is also significant limitations, it is difficult to reach the comprehensive marketization.In another party
Face, in order to guarantee haydite concrete pumpability, common practice is in industry, improves the property of concrete mortar by additive
Can, unfortunately, this way can only also improve the bleeding of concrete, isolation situation to a certain extent, it is difficult to realize to pottery
Grain working performance of concrete is substantially improved.It can be seen that how to integrate the high intensity for improving concrete and high fluidity side
Face is a major issue in the urgent need to address in building field.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of high-strength high fluidity haydite concretes；With outstanding physical strength
And the working performances such as good pumpability.
In order to realize these purposes and other advantages according to the present invention, a kind of high-strength high fluidity haydite coagulation is provided
Soil, comprising: the cement that parts by weight are 10~30 parts, 20~40 parts of sand, 10~40 parts of high-strength coarse aggregate, 20~60 parts of pottery
Grain, 6~10 parts of miberal powder, 1~3 part of polycarboxylate water-reducer, 1~3 part of additive；Wherein, the additive includes poly- third
Acrylamide, cellulose ether, dispersable adhesive powder, the polyacrylamide, cellulose ether, dispersable adhesive powder mass ratio be 2:
2:1。
Preferably, in the high-strength high fluidity haydite concrete, the bulk density of the haydite is 400~800kg/
m3, cylindrical compress strength > 1.3Mpa.
Preferably, in the high-strength high fluidity haydite concrete, the water suction degree of saturation of the haydite is greater than
96%.
Preferably, in the high-strength high fluidity haydite concrete, the partial size of the high-strength coarse aggregate is 5~
20mm, bulk density are 1500~2700Kg/m3, the shape of the high-strength coarse aggregate has water chestnut, containing in the high intensity aggregate
Mud amount < 1%, the high intensity aggregate include at least one of lime stone, granite, quartz.
Preferably, in the high-strength high fluidity haydite concrete, the specific surface area of the miberal powder is 400~
500cm2/ g, and activity is better than S95 grades.
Preferably, in the high-strength high fluidity haydite concrete, the polyacrylamide is anionic poly- third
Acrylamide, relative molecular mass are 800~20,000,000, and degree of hydrolysis is 10~35；The cellulose ether includes at least anionic
One of sodium cellulose glycolate, anionic carboxymethyl hydroxyethyl cellulose sodium, the apparent density of the cellulose ether is
0.25~0.70g/ml；The partial size of the dispersable adhesive powder is 100um, and solid content is 98~100%, bulk density 450
~550g/L.
Preferably, in the high-strength high fluidity haydite concrete, the additive further includes fire retardant matter, described
Fire retardant matter the preparation method is as follows:
S1, by expanded graphite, silica, be put into calcining furnace, at 600~800 DEG C calcine 20~30min, then
The temperature for adjusting calcining furnace is 700~1000 DEG C, continues 30~50min of calcining, and finally adjusting calcination temperature is 400~500 DEG C
5~10min is calcined, calcined material is discharged；
In S2, the calcined material into S1, magnesium hydroxide, aluminium hydroxide, poly- ammonium polyphosphate, melamine, di(2-ethylhexyl)phosphate is added
The different monooctyl ester of benzene heats 1~4h under the conditions of 180~220 DEG C after mixing, obtains the first mixing；
S3, the first mixing in S2 is put into blender, then into blender be added epoxy resin, organic siliconresin,
Foaming agent, defoaming agent, anti-settling agent continue 10~30min of stirring to get the fire retardant matter；
Wherein, the weight ratio of the fire retardant matter and the dispersable adhesive powder is 1:1；
The epoxy resin, organic siliconresin, diphenyl 2 ethylhexyl phosphate, expanded graphite, silica, magnesium hydroxide, hydrogen
Aluminium oxide, poly- ammonium polyphosphate, melamine, foaming agent, defoaming agent, anti-settling agent mass ratio are as follows: 20:20~40:10~25:5
~10:5~10:1~5:2~4:3~6:2~5:0.1~0.3:0.1~0.3:0.1~0.3；The foaming agent is specially carbon
Sour calcium, the defoaming agent are specially silicone emulsion, and the anti-settling agent is specially organobentonite.
The present invention is include at least the following beneficial effects:
1, the present invention is by being modified the slurry in concrete raw material and to the appropriately combined two ways of aggregate
Combination, during effective solution concrete pumping easily isolation the problem of, guarantee that it in the state of height flowing, simultaneously has
Have well it is wrapped, so that the pumpability of concrete greatly improved；Utilize the physical properties such as the form of different aggregates, density
Differentiation, have complementary advantages, improve the intensity of haydite concrete.Since haydite aggregate form is round and smooth sphere, by
Frictional resistance it is small, it is helpful to the flowing of concrete, improve its workability；But the bulk density of haydite is far below the appearance of slurry again simultaneously
Weight, the phenomenon that easily causing haydite floating and isolate.By introducing particle shape for water chestnut and the high-intensitive aggregate of bulk density greatly, together
When control the high-intensitive aggregate of the needle-shaped state shared mass ratio in total high-intensitive aggregate and agree with work using aggregate less than 5%
With the floating for effectively controlling density more lightweight aggregate with rubbing action.
2, the additive in the present invention has the effects that flocculation, bonding give full play to by introducing three kinds of polymer substances
The space behavior of different chain bases, and the suction-operated to hydrone, molecule, further effectively improve slurry to water
Suction-operated improves concrete cohesiveness, improves slurry and wraps up lightweight aggregate, reduces the degree of isolation.Further, since adding
Add agent that still there is good effect under physical force effect to water suction-operated.Therefore, it under the pressure of pumping, does not easily cause certainly
Entered in the gap of haydite by water, Free water still remains lubricating action, the effective slump loss amount for reducing pumping.Cause
This, additive, which is added, to be helped to reduce the precipitation of haydite concrete water in pumping procedure, improves the stability of concrete mortar.
3, it also added fire retardant matter in the present invention, can be improved concrete high temperature resistant and fire protecting performance.In the present invention
Resin raw material and diphenyl 2 ethylhexyl phosphate, silica, poly- ammonium polyphosphate etc. are mainly utilized in fire retardant matter with anti-flammability
The substance of energy carries out manufactured by sufficiently combination, to make the fire retardant matter in the present invention after being added in concrete, no
It is only capable of providing certain viscosity for prepared concrete, it is often more important that improve the high temperature resistant and fire protecting performance of concrete.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, to enable those skilled in the art referring to specification
Text can be implemented accordingly.It should be noted that experimental method described in following embodiments is unless otherwise specified normal
Rule method, the reagent and material commercially obtain unless otherwise specified.
Embodiment 1
A kind of high-strength high fluidity haydite concrete, comprising: the cement that parts by weight are 10 parts, 20 parts of sand, 10 parts of height
Strong coarse aggregate, 20 parts of haydite, 6 parts of miberal powder, 1 part of polycarboxylate water-reducer, 1 part of additive；Wherein, the additive packet
Include polyacrylamide, cellulose ether, dispersable adhesive powder, the quality of the polyacrylamide, cellulose ether, dispersable adhesive powder
Than for 2:2:1.
In the high-strength high fluidity haydite concrete, the bulk density of the haydite is 400kg/m3, cylindrical compress strength is
1.4Mpa。
In the high-strength high fluidity haydite concrete, the water suction degree of saturation of the haydite is 97%.
In the high-strength high fluidity haydite concrete, the partial size of the high-strength coarse aggregate is 5mm, and bulk density is
1500Kg/m3, and shape has water chestnut, the high intensity aggregate is lime stone.
In the high-strength high fluidity haydite concrete, the specific surface area of the miberal powder is 400cm2/g。
In the high-strength high fluidity haydite concrete, the polyacrylamide is anion-polyacrylamide, phase
It is 800~20,000,000 to molecular mass, degree of hydrolysis is 10~35；The cellulose ether is anionic sodium cellulose glycolate,
The apparent density of the cellulose ether is 0.25~0.70g/ml；The partial size of the dispersable adhesive powder is 100um, and solid content is
98~100%, bulk density is 450~550g/L.
Embodiment 2
A kind of high-strength high fluidity haydite concrete, comprising: the cement that parts by weight are 15 parts, 20 parts of sand, 15 parts of height
Strong coarse aggregate, 50 parts of haydite, 8 parts of miberal powder, 2 parts of polycarboxylate water-reducer, 2 parts of additive；Wherein, the additive packet
Include polyacrylamide, cellulose ether, dispersable adhesive powder, the quality of the polyacrylamide, cellulose ether, dispersable adhesive powder
Than for 2:2:1.
In the high-strength high fluidity haydite concrete, the bulk density of the haydite is 500kg/m3, cylindrical compress strength is
1.4Mpa。
In the high-strength high fluidity haydite concrete, the water suction degree of saturation of the haydite is 97%.
In the high-strength high fluidity haydite concrete, the partial size of the high-strength coarse aggregate is 10mm, and bulk density is
2200Kg/m3, and shape has water chestnut, the high intensity aggregate is quartz.
In the high-strength high fluidity haydite concrete, the specific surface area of the miberal powder is 450cm2/g。
In the high-strength high fluidity haydite concrete, the polyacrylamide is anion-polyacrylamide, phase
It is 800~20,000,000 to molecular mass, degree of hydrolysis is 10~35；The cellulose ether is anionic carboxy methyl hydroxyethyl fiber
Plain sodium, the apparent density of the cellulose ether are 0.25~0.70g/ml；The partial size of the dispersable adhesive powder is 100um, Gu
Content is 98~100%, and bulk density is 450~550g/L.
Embodiment 3
A kind of high-strength high fluidity haydite concrete, comprising: the cement that parts by weight are 20 parts, 30 parts of sand, 30 parts of height
Strong coarse aggregate, 60 parts of haydite, 8 parts of miberal powder, 2 parts of polycarboxylate water-reducer, 2 parts of additive；Wherein, the additive packet
Include polyacrylamide, cellulose ether, dispersable adhesive powder, the quality of the polyacrylamide, cellulose ether, dispersable adhesive powder
Than for 2:2:1.
In the high-strength high fluidity haydite concrete, the bulk density of the haydite is 600kg/m3, cylindrical compress strength is
1.5Mpa。
In the high-strength high fluidity haydite concrete, the water suction degree of saturation of the haydite is 98%.
In the high-strength high fluidity haydite concrete, the partial size of the high-strength coarse aggregate is 15mm, and bulk density is
2700Kg/m3, and shape has water chestnut, the high intensity aggregate is granite.
In the high-strength high fluidity haydite concrete, the specific surface area of the miberal powder is 500cm2/g。
In the high-strength high fluidity haydite concrete, the polyacrylamide is anion-polyacrylamide, phase
It is 800~20,000,000 to molecular mass, degree of hydrolysis is 10~35；The cellulose ether be anionic sodium cellulose glycolate,
The mixture of anionic carboxymethyl hydroxyethyl cellulose sodium, the apparent density of the cellulose ether are 0.25~0.70g/ml；
The partial size of the dispersable adhesive powder is 100um, and solid content is 98~100%, and bulk density is 450~550g/L.
Embodiment 4
A kind of high-strength high fluidity haydite concrete, comprising: the cement that parts by weight are 25 parts, 30 parts of sand, 40 parts of height
Strong coarse aggregate, 20 parts of haydite, 10 parts of miberal powder, 3 parts of polycarboxylate water-reducer, 3 parts of additive；Wherein, the additive
Including polyacrylamide, cellulose ether, dispersable adhesive powder, the matter of the polyacrylamide, cellulose ether, dispersable adhesive powder
Amount is than being 2:2:1.
In the high-strength high fluidity haydite concrete, the bulk density of the haydite is 700kg/m3, cylindrical compress strength is
1.5Mpa。
In the high-strength high fluidity haydite concrete, the water suction degree of saturation of the haydite is 97%.
In the high-strength high fluidity haydite concrete, the partial size of the high-strength coarse aggregate is 15mm, and bulk density is
2000Kg/m3, and shape has water chestnut, the high intensity aggregate is the mixture of lime stone, granite.
In the high-strength high fluidity haydite concrete, the specific surface area of the miberal powder is 400~500cm2/g。
In the high-strength high fluidity haydite concrete, the additive includes polyacrylamide, cellulose ether, can divide
Dissipate property rubber powder, the polyacrylamide, cellulose ether, dispersable adhesive powder mass ratio be 2:2:1.
In the high-strength high fluidity haydite concrete, the polyacrylamide is anion-polyacrylamide, phase
It is 800~20,000,000 to molecular mass, degree of hydrolysis is 10~35；The cellulose ether is anionic carboxy methyl hydroxyethyl fiber
Plain sodium, the apparent density of the cellulose ether are 0.25~0.70g/ml；The partial size of the dispersable adhesive powder is 100um, Gu
Content is 98~100%, and bulk density is 450~550g/L.
Embodiment 5
A kind of high-strength high fluidity haydite concrete, comprising: the cement that parts by weight are 30 parts, 40 parts of sand, 40 parts of height
Strong coarse aggregate, 30 parts of haydite, 6 parts of miberal powder, 3 parts of polycarboxylate water-reducer, 3 parts of additive；Wherein, the additive packet
Include polyacrylamide, cellulose ether, dispersable adhesive powder, the quality of the polyacrylamide, cellulose ether, dispersable adhesive powder
Than for 2:2:1.
In the high-strength high fluidity haydite concrete, the bulk density of the haydite is 700kg/m3, cylindrical compress strength is
1.3Mpa。
In the high-strength high fluidity haydite concrete, the water suction degree of saturation of the haydite is 97%.
In the high-strength high fluidity haydite concrete, the partial size of the high-strength coarse aggregate is 16mm, and bulk density is
1800Kg/m3, and shape has water chestnut, the high intensity aggregate is lime stone, the mixture in quartz.
In the high-strength high fluidity haydite concrete, the specific surface area of the miberal powder is 500cm2/g。
In the high-strength high fluidity haydite concrete, the polyacrylamide is anion-polyacrylamide, phase
It is 800~20,000,000 to molecular mass, degree of hydrolysis is 10~35；The cellulose ether is anionic sodium cellulose glycolate,
The apparent density of the cellulose ether is 0.25~0.70g/ml；The partial size of the dispersable adhesive powder is 100um, and solid content is
98~100%, bulk density is 450~550g/L.
Embodiment 6
A kind of high-strength high fluidity haydite concrete, comprising: the cement that parts by weight are 30 parts, 40 parts of sand, 40 parts of height
Strong coarse aggregate, 60 parts of haydite, 10 parts of miberal powder, 3 parts of polycarboxylate water-reducer, 3 parts of additive；Wherein, the additive
Including polyacrylamide, cellulose ether, dispersable adhesive powder, the matter of the polyacrylamide, cellulose ether, dispersable adhesive powder
Amount is than being 2:2:1.
In the high-strength high fluidity haydite concrete, the bulk density of the haydite is 800kg/m3, cylindrical compress strength is
1.6Mpa。
In the high-strength high fluidity haydite concrete, the water suction degree of saturation of the haydite is 98%.
In the high-strength high fluidity haydite concrete, the partial size of the high-strength coarse aggregate is 6mm, and bulk density is
2400Kg/m3, and shape has water chestnut, the high intensity aggregate is the mixture of lime stone, granite, quartz.
In the high-strength high fluidity haydite concrete, the specific surface area of the miberal powder is 400cm2/g。
In the high-strength high fluidity haydite concrete, the polyacrylamide is anion-polyacrylamide, phase
It is 800~20,000,000 to molecular mass, degree of hydrolysis is 10~35；The cellulose ether is anionic sodium cellulose glycolate,
The apparent density of the cellulose ether is 0.25~0.70g/ml；The partial size of the dispersable adhesive powder is 100um, and solid content is
98~100%, bulk density is 450~550g/L.
Embodiment 7
With embodiment 1, difference is, the additive further includes fire retardant matter, and the preparation method of the fire retardant matter is such as
Under:
S1, by expanded graphite, silica, be put into calcining furnace, 20min calcined at 600 DEG C, then adjusts calcining furnace
Temperature be 700 DEG C, continue calcine 30min, finally adjust calcination temperature be 400 DEG C of calcining 5min, discharge calcined material；
In S2, the calcined material into S1, magnesium hydroxide, aluminium hydroxide, poly- ammonium polyphosphate, melamine, di(2-ethylhexyl)phosphate is added
The different monooctyl ester of benzene heats 1h under the conditions of 180 DEG C after mixing, obtains the first mixing；
S3, the first mixing in S2 is put into blender, then into blender be added epoxy resin, organic siliconresin,
Foaming agent, defoaming agent, anti-settling agent continue to stir 10min to get the fire retardant matter；
Wherein, the weight ratio of the fire retardant matter and the dispersable adhesive powder is 1:1；
The epoxy resin, organic siliconresin, diphenyl 2 ethylhexyl phosphate, expanded graphite, silica, magnesium hydroxide, hydrogen
Aluminium oxide, poly- ammonium polyphosphate, melamine, foaming agent, defoaming agent, anti-settling agent mass ratio are as follows: 20:20:10:5:5:1:2:3:
2:0.1:0.1:0.1。
Embodiment 8
With embodiment 5, difference is, the additive further includes fire retardant matter, and the preparation method of the fire retardant matter is such as
Under:
S1, by expanded graphite, silica, be put into calcining furnace, 25min calcined at 700 DEG C, then adjusts calcining furnace
Temperature be 800 DEG C, continue calcine 40min, finally adjust calcination temperature be 450 DEG C of calcining 80min, discharge calcined material；
In S2, the calcined material into S1, magnesium hydroxide, aluminium hydroxide, poly- ammonium polyphosphate, melamine, di(2-ethylhexyl)phosphate is added
The different monooctyl ester of benzene heats 2h under the conditions of 200 DEG C after mixing, obtains the first mixing；
S3, the first mixing in S2 is put into blender, then into blender be added epoxy resin, organic siliconresin,
Foaming agent, defoaming agent, anti-settling agent continue to stir 20min to get the fire retardant matter；
Wherein, the weight ratio of the fire retardant matter and the dispersable adhesive powder is 1:1；
The epoxy resin, organic siliconresin, diphenyl 2 ethylhexyl phosphate, expanded graphite, silica, magnesium hydroxide, hydrogen
Aluminium oxide, poly- ammonium polyphosphate, melamine, foaming agent, defoaming agent, anti-settling agent mass ratio are as follows: 20:30:15:7:8:3:3:5:
2~5:0.2:0.2:0.2.
Embodiment 9
With embodiment 6, difference is, the additive further includes fire retardant matter, and the preparation method of the fire retardant matter is such as
Under:
S1, by expanded graphite, silica, be put into calcining furnace, 30min calcined at 800 DEG C, then adjusts calcining furnace
Temperature be 1000 DEG C, continue calcine 50min, finally adjust calcination temperature be 500 DEG C of calcining 10min, discharge calcined material；
In S2, the calcined material into S1, magnesium hydroxide, aluminium hydroxide, poly- ammonium polyphosphate, melamine, di(2-ethylhexyl)phosphate is added
The different monooctyl ester of benzene heats 4h under the conditions of 220 DEG C after mixing, obtains the first mixing；
S3, the first mixing in S2 is put into blender, then into blender be added epoxy resin, organic siliconresin,
Foaming agent, defoaming agent, anti-settling agent continue to stir 30min to get the fire retardant matter；
Wherein, the weight ratio of the fire retardant matter and the dispersable adhesive powder is 1:1；
The epoxy resin, organic siliconresin, diphenyl 2 ethylhexyl phosphate, expanded graphite, silica, magnesium hydroxide, hydrogen
Aluminium oxide, poly- ammonium polyphosphate, melamine, foaming agent, defoaming agent, anti-settling agent mass ratio are as follows: 20:40:25:10:10:5:4:
6:5:0.3:0.3:0.3。
It should be noted that the foaming agent added in embodiment 7~9 is calcium carbonate, defoaming agent is silicone emulsion, anti-settling agent
For organobentonite.
Comparative example 1
It is 28 parts of cement, 60 parts of haydite, 8 parts of flyash, 80 parts of sand and 0.8 part of water-reducing agent by parts by weight
Wet-mixing forms a kind of flyash-haydite concrete.
Concrete performance assessment experiment
Each portion of haydite concrete in Example 1~6 and comparative example 1, according to national standards " concrete strength
Check evaluation criterion " (GB/T 50107-2010) regulation carry out compression strength assessment, according to Modular building surface works construction
Inspection of quality specification GB 50209-2010 evaluates concrete density, and according to GB/T50080-2002, " normal concrete is mixed
With physical performance test method standard " carry out concrete bleeding test.It is as shown in table 1 to record data:
1 concrete performance of table assessment data
Concrete in comparative example 1 is a kind of light ceramsite concrete manufactured in the prior art；From the data knot of table 1
Fruit can be seen that in terms of the compression strength of 7d and 28d, and concrete of the embodiment of the present invention 1 into embodiment 6 is much excellent
The performance of concrete in comparative example 1；In terms of the bulk density of concrete, the concrete and comparative example 1 in the present invention are roughly the same,
Than the weight saving 20~23% of normal concrete, illustrate that the present invention also ensures while mitigating concrete overall weight
Preferable intensity；And in the isolation context of detection of concrete, for comparative example 1, in the embodiment of the present invention 1~6
Bleeding rate of the concrete in 10min and 60min is almost nil, this also indicates that the transformation of the invention to the prior art obtains
The problem of biggish success, the previous haydite concrete of very good solution easily isolates, it greatly improved the pumpable of concrete
Property.
Concrete fireproof assessment experiment
Example 1, embodiment 5, embodiment 6, each portion of concrete in 7~embodiment of embodiment 9, according to GB/
T10294 Technology of Steady State Thermal Resistance of Thermal Insulating Material and the thermal coefficient in every part of the standard test mixed territory of measurement in relation to characteristic, assessment data are such as
Shown in table 2:
2 concrete thermal coefficient data of table
Data shown by table 2 as above, it can be seen that 7~embodiment of embodiment 9 possesses than embodiment 1, in fact in the present invention
Example 5, the preferably fire protecting performance of embodiment 6 are applied, therefore illustrates institute in a further preferred embodiment selected in the present invention
The fire retardant matter of addition achieves good effect for the promotion of concrete fireproof performance.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details.
Claims (7)
1. high-strength high fluidity haydite concrete, which is characterized in that the cement for being 10~30 parts including parts by weight, 20~40 parts
Sand, 10~40 parts of high-strength coarse aggregate, 20~60 parts of haydite, 6~10 parts of miberal powder, 1~3 part of polycarboxylate water-reducer, 1~
3 parts of additive；
Wherein, the additive includes polyacrylamide, cellulose ether, dispersable adhesive powder, the polyacrylamide, cellulose
Ether, dispersable adhesive powder mass ratio be 2:2:1.
2. high-strength high fluidity haydite concrete as described in claim 1, which is characterized in that the bulk density of the haydite is 400
~800kg/m3, cylindrical compress strength > 1.3Mpa.
3. high-strength high fluidity haydite concrete as claimed in claim 2, which is characterized in that the water suction of the haydite is saturated journey
Degree is greater than 96%.
4. high-strength high fluidity haydite concrete as described in claim 1, which is characterized in that the partial size of the high-strength coarse aggregate
For 5~20mm, bulk density is 1500~2700Kg/m3, the shape of the high-strength coarse aggregate is with water chestnut, and the high intensity aggregate is extremely
It less include one of lime stone, granite, quartz.
5. high-strength high fluidity haydite concrete as described in claim 1, which is characterized in that the specific surface area of the miberal powder is
400~500cm2/g。
6. high-strength high fluidity haydite concrete as described in claim 1, which is characterized in that the polyacrylamide be yin from
Subtype polyacrylamide, relative molecular mass are 800~20,000,000, and degree of hydrolysis is 10~35；The cellulose ether includes at least
One of anionic sodium cellulose glycolate, anionic carboxymethyl hydroxyethyl cellulose sodium, the table of the cellulose ether
Sight density is 0.25~0.70g/ml；The partial size of the dispersable adhesive powder is 100um, and solid content is 98~100%, is accumulated close
Degree is 450~550g/L.
7. high-strength high fluidity haydite concrete as described in claim 1, which is characterized in that the additive further includes fire-retardant
Substance, the fire retardant matter the preparation method is as follows:
S1, by expanded graphite, silica, be put into calcining furnace, at 600~800 DEG C calcine 20~30min, then adjust
The temperature of calcining furnace is 700~1000 DEG C, continues 30~50min of calcining, and finally adjusting calcination temperature is 400~500 DEG C of calcinings 5
Calcined material is discharged in~10min；
In S2, the calcined material into S1, it is different that magnesium hydroxide, aluminium hydroxide, poly- ammonium polyphosphate, melamine, phosphoric acid hexichol is added
Monooctyl ester heats 1~4h under the conditions of 180~220 DEG C after mixing, obtains the first mixing；
S3, the first mixing in S2 is put into blender, epoxy resin, organic siliconresin, foaming is then added into blender
Agent, defoaming agent, anti-settling agent continue 10~30min of stirring to get the fire retardant matter；
Wherein, the weight ratio of the fire retardant matter and the dispersable adhesive powder is 1:1；
The epoxy resin, organic siliconresin, diphenyl 2 ethylhexyl phosphate, expanded graphite, silica, magnesium hydroxide, hydroxide
Aluminium, poly- ammonium polyphosphate, melamine, foaming agent, defoaming agent, anti-settling agent mass ratio are as follows: 20:20~40:10~25:5~10:
5~10:1~5:2~4:3~6:2~5:0.1~0.3:0.1~0.3:0.1~0.3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910185257.1A CN109761549A (en) | 2019-03-12 | 2019-03-12 | High-strength high fluidity haydite concrete |
Applications Claiming Priority (1)
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| CN114149205A (en) * | 2021-11-22 | 2022-03-08 | 陕西泾港沣环保建材有限公司 | Lightweight aggregate concrete and preparation method thereof |
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Application publication date: 20190517 |