CN108373301A - A kind of environmental protection anti-crack concrete - Google Patents
A kind of environmental protection anti-crack concrete Download PDFInfo
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- CN108373301A CN108373301A CN201810189337.XA CN201810189337A CN108373301A CN 108373301 A CN108373301 A CN 108373301A CN 201810189337 A CN201810189337 A CN 201810189337A CN 108373301 A CN108373301 A CN 108373301A
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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
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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
Abstract
The present invention provides a kind of environmentally friendly anti-crack concrete, which includes：Water, the natural fine sand that fineness modulus is 1.0 ~ 1.5 and 1.6 ~ 2.2, cement, cracking resistance swelling agent, water-reducing agent, the agent of suppression mud, flyash and polypropylene fibre, wherein, the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0 ~ 1.5 is 1.6 ~ 2.2 with fineness modulus is 1:1~2.This concrete use environment friendly raw material, improves the toughness of concrete, effectively increases tensile strength, the non-deformability of concrete, while can effectively solve the crack problem of concrete, improves anti-crack ability, delays the appearance of crackle.
Description
Technical field
The invention belongs to building material fields, and in particular to a kind of environmental protection anti-crack concrete.
Background technology
Concrete material be it is a kind of derive from a wealth of sources, cheap construction material, with the development of Concrete Science And Technology,
Application of the concrete material in various architectural engineerings is also more and more extensive.However, cement concrete is anti-due to the aquation of itself
It answers and the dehydration process of surrounding medium is also easy to produce receipts there is self-constriction, dry contraction and temperature drop contraction under constraints
Contracting cracking, seriously affects the durability of concrete.
The contraction distortion cracking of cement concrete has been engineering circles common concern, and the China of publication number CN1139079A is specially
Sharp document discloses a kind of side preparing swelling agent as raw material mixed calcining using lime stone, flyash, iron powder and mineralizer
Method, this swelling agent can effectively prevent distress in concrete to generate, but have the shortcomings that expansion performance is low, and natural using bloodstone etc.
Mineral resources is unfavorable for environmental protection as iron powder material, waste of resource.As coagulation self-taught expert Wuzhong it is big《Concrete science skill
The self-examination of art》One the article pointed out：" concrete material is developed so far, and the contradiction of mobility and density occurs, early stage occurs
The problem of with later stage crack, there is the problem of durability." building field, especially bridge, road construction and used
The crack problem of Cheng Zhong, concrete annoying always engineering technology people as an important topic of Durability of Concrete
Member develops a kind of anti-crack concrete and is of great significance in this context.
Invention content
The purpose of the present invention is overcoming the shortcomings of above-mentioned background technology, for the crack problem of building field concrete, open
Send out a kind of environmentally friendly anti-crack concrete.
To achieve the object of the present invention, it counts in parts by weight, environmentally friendly anti-crack concrete of the invention includes：Water 40~60
120~130 parts of the natural fine sand, 200~220 parts of cement, cracking resistance swelling agent that part, fineness modulus are 1.0~1.5 and 1.6~2.2
3~5 parts of 20~25 parts, 20~24 parts of water-reducing agent, 10~15 parts of suppression mud agent, 40~50 parts of flyash and polypropylene fibre, wherein
The mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is 1:1~2.
Preferably, in the present invention, the environmental protection anti-crack concrete includes：45~55 parts of water, fineness modulus are 1.0~1.5
With 1.6~2.2 125 parts of natural fine sand, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, fine coal
4 parts of 45 parts of ash and polypropylene fibre, wherein the natural fine sand that fineness modulus is 1.0~1.5 and fineness modulus are 1.6~2.2
The mass ratio of natural fine sand is 1:1.5.
It in the present invention, counts in parts by weight, the cracking resistance swelling agent includes：50~60 parts of calcia linker, pyrite
10~18 parts of 35~46 parts of slag, 15~20 parts of rice hull ash and wollastonite in powder.
In the present invention, the preparation method of the cracking resistance swelling agent is：By calcia linker, pyrite cinder, rice hull ash and
Wollastonite in powder mixes, and grinding is at 420~550m of specific surface area2The raw material of/kg, gained raw material are placed at 1200~1300 DEG C and calcine
1.5~2h, then quenching in air, grinding to 300~350m of specific surface area2/ kg is to get cracking resistance swelling agent.
In the present invention, the suppression mud agent is counted in parts by weight, including 4~5 parts of vinyltrimethoxysilane, allyl sulphur
3~4 parts of sour sodium, 3~4 parts of methallylsulfonic acid sodium, 95~120 parts of deionized water, 90~100 parts of n-butanol, polyacrylic acid
40~45 parts and 3~4 parts of hydrogen peroxide.
In the present invention, the preparation method of the suppression mud agent is：By vinyltrimethoxysilane, Sodium Allyl Sulfonate, first
Base Sodium Allyl Sulfonate is dissolved in the mixed solution of deionized water and n-butanol, stirring and dissolving, and it is 80 DEG C~85 DEG C to keep temperature,
Polyacrylic acid is added dropwise and hydrogen peroxide, wherein polyacrylic acid drip off in 1.5~2h, hydrogen peroxide drips off in 1~1.5h, drop
It adds rear insulation reaction 4~5 hours, then cools to room temperature, adjust solution ph as 7~8 to get suppression mud agent.
In the present invention, in the water-reducing agent comprising the polyacrylic acid of molecular weight 2000~3000, propenyl, hydroquinone,
Methylpropene sodium sulfonate, vinyltrimethoxysilane, lignin liquor, sodium peroxydisulfate and isopropanol.
In the present invention, the preparation method of the water-reducing agent includes the following steps：By the polypropylene of molecular weight 2000~3000
Acid is added with propenyl in reactor, at ambient temperature mechanical agitation, and is passed through acidic catalyst dielectric gas, is added to benzene two
Phenol is stirred at reflux, and vacuum distillation products therefrom and methylpropene sodium sulfonate is added in reactor, then in 50~65 DEG C of items
It has been reacted respectively to dropwise addition sodium lignin sulfonate, vinyltrimethoxysilane, sodium peroxydisulfate, isopropanol in reaction kettle under part
Cheng Hou adjusts pH value to 5.5~6.5 using aqueous slkali, is then diluted with water to get water-reducing agent.
In the present invention, the polyacrylic acid, propenyl, methylpropene sodium sulfonate molar ratio be 1：1.5~2：0.7~
0.8。
In the present invention, the addition of the hydroquinone is the 1.0%~1.2% of polyacrylic acid quality.
Compared with prior art, fineness modulus is by the present invention by adding cracking resistance swelling agent, water-reducing agent and suppression mud agent
1.0~1.5 natural fine sand is combined with the natural fine sand that fineness modulus is 1.6~2.2 by certain mass ratio, is added to specific part
In several cement, flyash etc., use environment friendly raw material improves the toughness of concrete, effectively increases concrete
Tensile strength, non-deformability, while the crack problem of concrete can be effectively solved, anti-crack ability is improved, going out for crackle is delayed
It is existing.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it
Between do not constitute conflict and can be combined with each other.
Embodiment 1：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 2：
By the natural fine sand that following parts by weight accurately weigh 40 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
120 parts, 220 parts of cement, 25 parts of cracking resistance swelling agent, 24 parts of water-reducing agent, 15 parts of suppression mud agent, 40 parts of flyash and polypropylene fibre 5
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:2, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 3：
By the natural fine sand that following parts by weight accurately weigh 60 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
130 parts, 200 parts of cement, 20 parts of cracking resistance swelling agent, 20 parts of water-reducing agent, 10 parts of suppression mud agent, 50 parts of flyash and polypropylene fibre 3
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 4：
By the natural fine sand that following parts by weight accurately weigh 30 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 5：
By the natural fine sand that following parts by weight accurately weigh 70 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 6：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
115 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 7：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
135 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 8：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 230 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 9：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 190 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 10：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 30 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 11：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 60 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 12：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
60 parts of 125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent and flyash, wherein fineness mould
The mass ratio for the natural fine sand that the natural fine sand that number is 1.0~1.5 is 1.6~2.2 with fineness modulus is 1:1.5, by above-mentioned original
Material is added to stirring in concrete mixer.
Embodiment 13：
125 parts of natural fine sand, the cement of 50 parts of water, fineness modulus for 1.0~1.5 are accurately weighed by following parts by weight
4 parts of 210 parts, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre, by above-mentioned original
Material is added to stirring in concrete mixer.
Embodiment 14：
125 parts of natural fine sand, the cement of 50 parts of water, fineness modulus for 1.6~2.2 are accurately weighed by following parts by weight
4 parts of 210 parts, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 60 parts of flyash and polypropylene fibre, by above-mentioned original
Material is added to stirring in concrete mixer.
Embodiment 15：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:0.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 16：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:2.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 17：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the cracking resistance swelling agent includes 50~60 parts of calcia linker, 15~20 parts of rice hull ash and wollastonite in powder 10~18
Part, the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is 1:1.5
Above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 18：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the cracking resistance swelling agent includes 50~60 parts of calcia linker, 35~46 parts of pyrite cinder and rice hull ash 15~20
Part, the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is 1:1.5
Above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 19：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
4 parts of 125 parts, 210 parts of cement, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre, wherein fineness modulus
The mass ratio for the natural fine sand that natural fine sand for 1.0~1.5 is 1.6~2.2 with fineness modulus is 1:1.5, by above-mentioned raw materials
It is added to stirring in concrete mixer.
Embodiment 20：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 30 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 21：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 10 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 22：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 28 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Embodiment 23：
By the natural fine sand that following parts by weight accurately weigh 50 parts of water, fineness modulus is 1.0~1.5 and 1.6~2.2
125 parts, 210 parts of cement, 22 parts of cracking resistance swelling agent, 22 parts of water-reducing agent, 5 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre 4
Part, wherein the mass ratio for the natural fine sand that the natural fine sand that fineness modulus is 1.0~1.5 is 1.6~2.2 with fineness modulus is
1:1.5, above-mentioned raw materials are added in concrete mixer and are stirred.
Effect example：
Environmentally friendly anti-crack concrete obtained by embodiment 1-23 is tested for the property, test method and result are as follows：
Intensity test：The cake style that sample specification is Φ 50mm × 100mm is made；
Flexural strength is tested：Manufactured sample is 100mm × 25mm × 25mm strip samples；
Cracking resistance test uses the concrete splitting die trial of Tianjin Dongli District Ya Xing automation experiments instrument plant：Φ420
× 305 × 100 do circle ring test, detect cracking time.
As it will be easily appreciated by one skilled in the art that example the above is only the implementation of the present invention, not limiting
The present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should be included in this
Within the protection domain of invention.
Claims (10)
1. a kind of environmental protection anti-crack concrete, which is characterized in that count in parts by weight, which includes：Water 40 ~ 60
120 ~ 130 parts of the natural fine sand, 200 ~ 220 parts of cement, cracking resistance swelling agent 20 that part, fineness modulus are 1.0 ~ 1.5 and 1.6 ~ 2.2 ~
3 ~ 5 parts of 25 parts, 20 ~ 24 parts of water-reducing agent, 10 ~ 15 parts of suppression mud agent, 40 ~ 50 parts of flyash and polypropylene fibre, wherein fineness modulus
The mass ratio for the natural fine sand that natural fine sand for 1.0 ~ 1.5 is 1.6 ~ 2.2 with fineness modulus is 1:1~2.
2. environmental protection anti-crack concrete according to claim 1, which is characterized in that count in parts by weight, the environmental protection cracking resistance
Concrete includes：125 parts of the natural fine sand, 210 parts of cement, cracking resistance that 45 ~ 55 parts of water, fineness modulus are 1.0 ~ 1.5 and 1.6 ~ 2.2
4 parts of 22 parts of swelling agent, 22 parts of water-reducing agent, 13 parts of suppression mud agent, 45 parts of flyash and polypropylene fibre, wherein fineness modulus 1.0
The mass ratio for the natural fine sand that ~ 1.5 natural fine sand is 1.6 ~ 2.2 with fineness modulus is 1:1.5.
3. the environmentally friendly anti-crack concrete according to claim 1-2, which is characterized in that count in parts by weight, the cracking resistance is swollen
Swollen dose includes：10 ~ 18 parts of 50 ~ 60 parts of calcia linker, 35 ~ 46 parts of pyrite cinder, 15 ~ 20 parts of rice hull ash and wollastonite in powder.
4. environmental protection anti-crack concrete according to claim 3, which is characterized in that the preparation method of the cracking resistance swelling agent
For：Calcia linker, pyrite cinder, rice hull ash and wollastonite in powder are mixed, grinding is at 420 ~ 550m of specific surface area2/ kg's
Raw material, gained raw material are placed at 1200 ~ 1300 DEG C 1.5 ~ 2h of calcining, then quenching in air, and grinding to specific surface area 300 ~
350m2/ kg is to get cracking resistance swelling agent.
5. the environmentally friendly anti-crack concrete according to claim 1-2, which is characterized in that the suppression mud agent is counted in parts by weight,
Including 4 ~ 5 parts of vinyltrimethoxysilane, 3 ~ 4 parts of Sodium Allyl Sulfonate, 3 ~ 4 parts of methallylsulfonic acid sodium, deionized water
3 ~ 4 parts of 95 ~ 120 parts, 90 ~ 100 parts of n-butanol, 40 ~ 45 parts of polyacrylic acid and hydrogen peroxide.
6. it is according to claim 5 environmental protection anti-crack concrete, which is characterized in that it is described suppression mud agent preparation method be：It will
Vinyltrimethoxysilane, Sodium Allyl Sulfonate, methallylsulfonic acid sodium are dissolved in deionized water and the mixing of n-butanol is molten
In liquid, stirring and dissolving, it is 80 DEG C ~ 85 DEG C to keep temperature, polyacrylic acid and hydrogen peroxide is added dropwise, wherein polyacrylic acid is in 1.5 ~ 2h
It inside drips off, hydrogen peroxide drips off in 1 ~ 1.5h, drips rear insulation reaction 4 ~ 5 hours, then cools to room temperature, and adjusts solution
PH value is 7 ~ 8 to get suppression mud agent.
7. the environmentally friendly anti-crack concrete according to claim 1-2, which is characterized in that include molecular weight in the water-reducing agent
2000 ~ 3000 polyacrylic acid, propenyl, hydroquinone, methylpropene sodium sulfonate, vinyltrimethoxysilane, lignin
Solution, sodium peroxydisulfate and isopropanol.
8. environmental protection anti-crack concrete according to claim 7, which is characterized in that the preparation method of the water-reducing agent, including
Following steps：The polyacrylic acid of molecular weight 2000 ~ 3000 and propenyl are added in reactor, machinery stirs at ambient temperature
It mixes, and is passed through acidic catalyst dielectric gas, hydroquinone is added, is stirred at reflux, be evaporated under reduced pressure, by products therefrom and metering system
Sodium sulfonate is added in reactor, then respectively to dropwise addition sodium lignin sulfonate, vinyl three in reaction kettle under the conditions of 50 ~ 65 DEG C
Methoxy silane, sodium peroxydisulfate, isopropanol after the completion of reaction, adjust pH value to 5.5 ~ 6.5, then plus water is dilute using aqueous slkali
It releases to get water-reducing agent.
9. environmental protection anti-crack concrete according to claim 8, which is characterized in that the polyacrylic acid, propenyl, methyl-prop
The molar ratio of alkene sodium sulfonate is 1：1.5~2：0.7~0.8.
10. environmental protection anti-crack concrete according to claim 8, which is characterized in that the addition of the hydroquinone is poly-
The 1.0% ~ 1.2% of acrylic acid quality.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206290A (en) * | 2019-06-10 | 2019-09-06 | 中铁二十二局集团第五工程有限公司 | Wine library overhanging scaffold construction method |
| CN110698153A (en) * | 2019-09-25 | 2020-01-17 | 北京城市之光生态环境有限公司 | Pavement crack-resistant concrete and application thereof in garden construction |
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