CN108911625A - Impervious anti-crack concrete - Google Patents

Impervious anti-crack concrete Download PDF

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Publication number
CN108911625A
CN108911625A CN201810836001.8A CN201810836001A CN108911625A CN 108911625 A CN108911625 A CN 108911625A CN 201810836001 A CN201810836001 A CN 201810836001A CN 108911625 A CN108911625 A CN 108911625A
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China
Prior art keywords
parts
agent
impervious
water
concrete
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CN201810836001.8A
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Chinese (zh)
Inventor
顾连林
袁冬生
张耀
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Shanghai Petrochemical Anton Concrete Co Ltd
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Shanghai Petrochemical Anton Concrete Co Ltd
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Priority to CN201810836001.8A priority Critical patent/CN108911625A/en
Publication of CN108911625A publication Critical patent/CN108911625A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/27Water resistance, i.e. waterproof or water-repellent materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34Non-shrinking or non-cracking materials
    • C04B2111/343Crack resistant materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of impervious anti-crack concretes, belong to the field of building materials, its key points of the technical solution are that based on parts by weight, including following components:230-240 parts of cement, 170-190 parts of water, sand 790-800 parts middle, 1005-1015 parts of rubble, 50-60 parts of flyash, 70-80 parts of miberal powder, 4-5 parts of water-reducing agent, 10-16 parts of impervious agent, 4-5 parts of reinforcing agent, 0.5-1 parts of coupling agent;The water-reducing agent is naphthalene water reducer;The impervious agent is active micro silicon powder, diatomite and kaolin, and the active micro silicon powder, diatomite and kaolinic weight ratio are 2:1:1;The reinforcing agent is basalt fibre, carbon fiber, and the weight ratio of the basalt fibre and carbon fiber is 1:(1.1-1.3);The coupling agent is silane coupling agent.Invention achieves the impervious cracking resistances that the impervious agent by addition improves concrete, the mechanical property of concrete is provided by the reinforcing agent of addition, to reach the technical effect for improving the mechanical property of concrete while improving the impervious cracking resistance of concrete.

Description

Impervious anti-crack concrete
Technical field
The present invention relates to the field of building materials, more specifically, it is related to a kind of impervious anti-crack concrete.
Background technique
Conventional concrete cement, stone, Sha Heshui are mixed are made in proportion, in infiltration environment, concrete The particulate of freezing period is easily rinsed slurry and is lost, and hole is more after solidification, because single-particle bonding shape brittleness is big, easily infiltration, poor waterproof properties; Concrete construction and water long period of soaking in water, need concrete to have certain water impermeability, such as build deep layer mine, pit shaft Concrete function, because passing through complicated geological, all multi-aquifers, the water-impervious of engineering is that the generally acknowledged technology of domestic and international mine Construction Bank industry is difficult Topic;For another example there is concrete water-proof in reservoir dam, highway, railway tunnel, subway;The side of concrete water-permeating is solved at present Method mainly adds waterproofing agent, but waterproof agent prescription is unreasonable, its waterproofness is undesirable after concrete is added, therefore, existing The building surface layer infiltration built up with concrete falls off, service life is short, repairing construction difficulty is big, complicated for operation, at high cost.
The prior art can refer to the patent application document that application publication number is CN108249855A, disclosure of the invention one kind Water-tight concrete mixture and its construction method, its key points of the technical solution are that a kind of impervious coagulation scholar mixture, includes following The mass fraction of raw material, each raw material and each raw material is as follows:250-420 parts of portland cement, 65-80 parts of flyash, sand 650-850 Part, 1000-1080 parts of rubble, 5-10 parts of water-reducing agent, 13-29 parts of calcium sulphoaluminate class swelling agent, 1-3 parts of other auxiliary agents, water 160- 90 parts.
For ordinary reinforced concrete in aquation knot hard process, concrete shrinkage makes in structure reinforcing bar by compression, this Kind compression makes concrete easily generate crack, and concrete, during pouring, hydration reaction generates a large amount of heat Amount, so that concrete structure internal temperature increases, the internal-external temperature difference of structure is excessive to will also result in concrete cracking, and uses at present The calcium sulphoaluminate class swelling agent heat of hydration that can still result in concrete as compensating concrete material it is high, the contraction distortion of concrete Greatly, the phenomenon that cracking, infiltration being generated so as to cause concrete.
Summary of the invention
The purpose of the present invention is to provide a kind of impervious anti-crack concretes can increase coagulation by the impervious agent of addition The impervious cracking resistance of soil, the cooperation with reinforcing agent and coupling agent can improve the intensity of concrete, to improve concrete Service life.
Above-mentioned technical purpose of the invention technical scheme is that:
A kind of impervious anti-crack concrete, based on parts by weight, including following components:230-240 parts of cement, 170-190 parts of water, in 790-800 parts of sand, 1005-1015 parts of rubble, 50-60 parts of flyash, 70-80 parts of miberal powder, 4-5 parts of water-reducing agent, impervious agent 10-16 Part, 4-5 parts of reinforcing agent, 0.5-1 parts of coupling agent;The water-reducing agent is naphthalene water reducer;The impervious agent is active micro silicon powder, silicon Diatomaceous earth, kaolin, the active micro silicon powder, diatomite and kaolinic weight ratio are 2:1:1;The reinforcing agent is basalt The weight ratio of fiber, carbon fiber, the basalt fibre and carbon fiber is (1.1-1.3);The coupling agent is silane coupling agent.
By using above-mentioned technical proposal, water-reducing agent is a kind of under conditions of maintaining concrete slump to be basically unchanged, It can be reduced the concrete admixture of mixing water amount, have peptizaiton to cement granules after concrete mix is added, can improve Its workability reduces unit consumption of water, improves the mobility of concrete mix;Naphthalene water reducer has significant morning to concrete By force, synergistic effect can improve the physical and mechanical property of concrete comprehensively, can save cement when keeping intensity identical.
Silicon powder is a kind of nontoxic, tasteless, free of contamination high pure white micro mist of hydrophobicity (lipophilicity), has temperature tolerance The excellent performances such as good, acid-alkali-corrosive-resisting, poor thermal conductivity, high insulation, low bulk, stable chemical performance, hardness is big;Silicon powder is not Easily with other substance reactions, chemically reactive, particle uniform fold do not have relatively strong in object surface with most of acid, alkali Resistance to corrosion;The silicon powder handled through silane coupling agent, has good wellability to various types of resins, absorption property is good, easily Mixing, no clustering phenomena;Silicon powder can the intergranular hole of filling concrete, while with hydrated product generate gelinite;Significantly Improve resistance to compression, anti-folding, impervious, anti-corrosion, shock resistance and the wear-resisting property of concrete;With being retained, prevent isolation, bleeding, substantially Reduce the effect of concrete pumping resistance;The significant service life for extending concrete;Can be reduced in concrete cost, improve it is durable Property, it can effectively prevent generation alkali-aggregate reaction in concrete.Active micro silicon powder is by its unique technique, using materials pair such as silane Silicon powder particle surface is modified processing, enhances the hydrophobicity performance of silicon powder, improves the machine of mixture and fill system Tool, electronics and chemical characteristic improve the anti-permeability performance of concrete.
Diatomite is by unbodied SiO2Composition, and contain a small amount of Fe2O3、CaO、MgO、Al2O3And organic impurities;Diatomite Usually in light yellow or light grey, matter is soft, porous and light;The main component of diatomite is silicic acid matter, has superfluorescent fiber, Porous Etc. characteristics, ultra tiny boring ratio charcoal it is more go out 5000 to 6000 times;Ultra micro when there is moisture infiltration, on kieselguhr wall material Pore can moisture in automatic absorption air, stored;When the moisture in concrete is reduced, humidity declines, silicon Diatomaceous earth wall material can come out the water release being stored in ultra micro pore, so as to prevent dry and wet difference inside and outside concrete from comparing The phenomenon that causing cracking greatly.
Kaolin is a kind of clay and clay rock based on kaolinite race clay mineral, what kaolin was formed in conjunction with water Pug can deform under external force, and after external force removes, the property for being still able to maintain this deformation is plasticity, so as to Improve the toughness of concrete, the phenomenon that reducing its stress cracking;And kaolin tool is a bit sticky, and concrete can be improved Between cohesive force, improve the compactness of concrete.
Basalt fibre is basalt building stones after 1450 DEG C of -1500 DEG C of meltings, passes through platinum-rhodium alloy bushing high speed Continuous fiber made of drawing, intensity are suitable with high intensity S glass fibre;Its bonding strength that can improve inside concrete, from And improve the mechanical property of concrete.
Carbon fiber quality is lighter than metallic aluminium, but intensity is higher than steel, and carbon fiber is in addition to the spy with general carbon materials Property outside, shape has significant anisotropy soft, the strength and toughness of concrete can be improved, to improve the power of concrete Learn performance;The synergistic effect of carbon fiber and basalt fibre can increase substantially the mechanical strength of concrete, improve concrete Service life.
Siloxy in silane coupling agent has reactivity to inorganic matter, and organic functional base has reactivity to organic matter Or compatibility, the addition of silane coupling agent can improve the compatibility of fibrous material and concrete, thus improve concrete with it is impervious Bond strength between agent and reinforcing agent.
The present invention is further arranged to:Based on parts by weight, including following components:234 parts of cement, 180 parts of water, middle sand 793 parts, 1010 parts of rubble, 54 parts of flyash, 72 parts of miberal powder, 4.3 parts of water-reducing agent, 12 parts of impervious agent, 4 parts of reinforcing agent, coupling agent 0.8 part;The water-reducing agent is naphthalene water reducer;The impervious agent is active micro silicon powder, diatomite, kaolin, the activated silica Micro mist, diatomite and kaolinic weight ratio are 2:1:1;The reinforcing agent is basalt fibre, carbon fiber, the basalt The weight ratio of fiber and carbon fiber is 1:1.2;The coupling agent is silane coupling agent.
By using above-mentioned technical proposal, under said ratio, concrete can have height while with good strength Impervious and high cracking resistance energy, improves the service life of concrete.
The present invention is further arranged to:The fineness of the silicon powder is 1000-1100 mesh, and whiteness is 92-94 degree, and Mohs is hard Degree is 7.
By using above-mentioned technical proposal, the fineness of silicon powder is 1000-1100 mesh, and whiteness is 92-94 degree, Mohs' hardness It is 7, is conducive to its being sufficiently mixed with cement, improves the impervious cracking resistance of concrete.
The present invention is further arranged to:The fineness of the diatomite is 400-450 mesh, density 0.45-0.47g/cm3, Porosity is 90-92%, loose density 0.45-0.48g/cm3, Mohs' hardness 1.3.
By using above-mentioned technical proposal, the fineness of diatomite is 400-450 mesh, density 0.45-0.47g/cm3, hole Porosity is 90-92%, loose density 0.45-0.48g/cm3, Mohs' hardness 1.3 improves the impervious crack resistance of concrete Energy.
The present invention is further arranged to:The kaolinic fineness is 800-1000 mesh.
By using above-mentioned technical proposal, kaolinic fineness is 800-1000 mesh, is conducive to kaolin in cement It is fully dispersed, be conducive to its being sufficiently mixed with other raw materials.
The present invention is further arranged to:The cement is P.O42.5 ordinary portland cement, specific surface area 346m2/ kg。
By using above-mentioned technical proposal, cement is P.O42.5 ordinary portland cement, specific surface area 346m2/ kg, Moderate strength is conducive to control cost.
The present invention is further arranged to:The fineness modulus of the middle sand is 2.5.
By using above-mentioned technical proposal, the fineness modulus of middle sand is 3.0, is conducive to the intensity for improving concrete, improves The performance of concrete.
The present invention is further arranged to:The partial size of the rubble is 5-25mm continuous grading, and the apparent density of rubble is 2830kg/m3, loosely-packed porosity is 45%, loose bulk density 1560kg/m3
By using above-mentioned technical proposal, use the rubble of 5-25mm continuous grading as coarse aggregate, different-grain diameter it is broken Clitter product forms the overlap joint skeleton of dense packing effect, reduces porosity, improves the intensity of concrete.
The present invention is further arranged to:The flyash is II grade of flyash of F class, fineness (45 μm of square hole screens of flyash Tail over) it is 10%, water demand ratio 98%, loss on ignition 5.5%, water content 0.2%.
By using above-mentioned technical proposal, II grade of flyash can replace part of cement as gel rubber material, to reduce water The hydration heat rate of mud, reduces the thermal discharge of cement, flyash have " active effect ", " interfacial effect ", " diminishing effect ", Many comprehensive effects such as " micro- to fill out effect " can improve rheological property, reduce the heat of hydration, reduce slump-loss.
The present invention is further arranged to:The miberal powder is S95 grade slag powder, density 3.0g/cm3, specific surface area is 415m2/ kg, activity index (7d) are 80%, and activity index (28d) is 96%, and fluidity ratio is 97%, water content 0.2%.
By using above-mentioned technical proposal, the miberal powder is S95 grade slag powder, density 3.0g/cm3, specific surface area is 415m2/ kg, activity index (7d) are 80%, and activity index (28d) is 96%, and fluidity ratio is 97%, water content 0.2%.
By using above-mentioned technical proposal, miberal powder has good chemical activity, after mixing with water, generates secondary hydration Reaction reduces the intercommunicating pore of concrete, improves concrete density, improves the impermeability of concrete.
In conclusion the present invention has the advantages that compared with the prior art:
1. active micro silicon powder, diatomite and kaolinic mutual cooperation, can the intergranular hole of filling concrete, while and water Change product and generates gelinite;Significantly improve resistance to compression, anti-folding, impervious, anti-corrosion, shock resistance and the wear-resisting property of concrete;Activated silica The hydrophobicity of micro mist can effectively stop the infiltration of moisture, to improve the impervious cracking resistance of concrete;
2. carbon fiber quality is lighter than metallic aluminium, but intensity is higher than steel, and carbon fiber is in addition to the characteristic with general carbon materials Outside, shape has significant anisotropy soft, the strength and toughness of concrete can be improved, to improve the mechanics of concrete Performance;The synergistic effect of carbon fiber and basalt fibre can increase substantially the mechanical strength of concrete, improve concrete Service life.
Specific embodiment
Invention is further described in detail below.
One, the component of impervious anti-crack concrete is shown in table 1 in embodiment 1-7.
Impervious anti-crack concrete component table (unit in 1 embodiment 1-7 of table:kg)
Wherein, cement is P.O42.5 ordinary portland cement, specific surface area 346m2/kg;The fineness modulus of middle sand is 2.5;The partial size of rubble is 5-25mm continuous grading, and the apparent density of rubble is 2830kg/m3, loosely-packed porosity is 45%, loose bulk density 1560kg/m3;Flyash is II grade of flyash of F class, fineness (45 μm of square hole screen sieves of flyash It is remaining) it is 10%, water demand ratio 98%, loss on ignition 5.5%, water content 0.2%;The fineness of silicon powder is 1000-1100 Mesh, whiteness are 92-94 degree, Mohs' hardness 7;The fineness of diatomite is 400-450 mesh, density 0.45-0.47g/cm3, hole Porosity is 90-92%, loose density 0.45-0.48g/cm3, Mohs' hardness 1.3;Kaolinic fineness is 800-1000 Mesh;Miberal powder is S95 grade slag powder, density 3.0g/cm3, specific surface area 415m2/ kg, activity index (7d) are 80%, activity Index (28d) is 96%, and fluidity ratio is 97%, water content 0.2%.
Two, comparative example 1-7
Comparative example 1:Use the application publication number for the patent application document of CN108249855A, disclosure of the invention is a kind of impervious mixed Solidifying soil mixture and its construction method, its key points of the technical solution are that a kind of impervious coagulation scholar mixture, includes following raw material, respectively The mass fraction of raw material and each raw material is as follows:250-420 parts of portland cement, 65-80 parts of flyash, 650-850 parts of sand, rubble 1000-1080 parts, 5-10 parts of water-reducing agent, 13-29 parts of calcium sulphoaluminate class swelling agent, 1-3 parts of other auxiliary agents, 160-90 parts of water.
Comparative example 2:Use application publication number for the patent application document of CN106116364A, a kind of fibre of disclosure of the invention Dimension enhancing concrete and preparation method thereof, is prepared in parts by weight by following components:500-600 parts of portland cement, 600-800 parts of flyash, 200-300 parts of sand, 250-300 parts of water, glass 50-80 parts polyoxyethylene-modified, water-reducing agent 20-30 Part, 50-70 parts of nanofiller;Wherein nanofiller be partial size be 300-500nm nano kaoline, nano silica or receive Rice diatomite.
Comparative example 3:Comparative example 3 is difference from example 1 is that be not added with active micro silicon powder in raw material.
Comparative example 4:Comparative example 4 is difference from example 1 is that be not added with diatomite in raw material.
Comparative example 5:Comparative example 5 is difference from example 1 is that be not added with kaolin in raw material.
Comparative example 6:Comparative example 6 is difference from example 1 is that be not added with basalt fibre in raw material.
Comparative example 7:Comparative example 7 is difference from example 1 is that be not added with carbon fiber in raw material.
Component table (the unit of 2 comparative example 1-7 of table:kg)
Three, the performance of the embodiment 1-7 and comparative example 1-7 concrete prepared is tested using following direction.
1. the slump:According to GB/T50080-2016《Standard for test methods of properties of ordinary concrete mixture standard》Test coagulation Slump when native mixture 30min.
2. Anti-Chloride Ion Penetration:According to GB/T50082-2009《Normal concrete long-term behaviour and endurance quality examination Test method standard》In quick chloride ion transport Y-factor method Y testing standard test block chloride ion penetration depth.
3. water resistant permeance property:According to GB/T50082-2009《Common coagulation scholar long-term behaviour and endurance quality test side Method standard》In the testing standard test block of pressurization step by step infiltration depth.
4. flexural strength:According to GB/T50081-2016《Common coagulation scholar's mechanical test method standard》Production standard Test block, and the flexural strength of measurement standard test block maintenance 1d, 7d and 28d.
5. compression strength:According to GB/T50081-2016《Common coagulation scholar's mechanical test method standard》Production standard Test block, and the compression strength of measurement standard test block maintenance 1d, 7d and 28d.
6. early anti-cracking behavior energy:According to GB/T50081-2016《Common coagulation scholar's mechanical test method standard》Production Reference block, calculating concrete casting, measurement obtains total cracking in the crack number and unit area of unit area afterwards for 24 hours Area.
The performance test table of the concrete of 3 embodiment 1-7 of table preparation
The performance test table of the concrete of 4 comparative example 1-7 of table preparation
As can be seen from the above data, the Anti-Chloride Ion Penetration and water permeability resistance energy of concrete prepared by the present invention There is biggish advantage compared with comparative example 1-7, early anti-cracking behavior can be also obviously due to the concrete of comparative example 1-7 preparation, explanation Active micro silicon powder, diatomite and kaolinic addition have a significant impact to the raising tool of concrete impervious cracking resistance;In addition, The relatively comparative example 1-7 of concrete prepared by the present invention has excellent flexural strength and compression strength, illustrates basalt fibre And the addition of carbon fiber is greatly improved to the mechanical property of concrete.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of impervious anti-crack concrete, it is characterised in that:Based on parts by weight, including following components:
230-240 parts of cement, 170-190 parts of water, sand 790-800 parts middle, 1005-1015 parts of rubble, 50-60 parts of flyash, mine 70-80 parts of powder, 4-5 parts of water-reducing agent, 10-16 parts of impervious agent, 4-5 parts of reinforcing agent, 0.5-1 parts of coupling agent;
The water-reducing agent is naphthalene water reducer;
The impervious agent is active micro silicon powder, diatomite and kaolin, the active micro silicon powder, diatomite and kaolinic Weight ratio is 2:1:1;
The reinforcing agent is basalt fibre, carbon fiber, and the weight ratio of the basalt fibre and carbon fiber is 1:(1.1- 1.3);
The coupling agent is silane coupling agent.
2. impervious anti-crack concrete according to claim 1, it is characterised in that:Based on parts by weight, including following components:
234 parts of cement, 793 parts of middle sand, 1010 parts of rubble, 54 parts of flyash, 72 parts of miberal powder, 4.3 parts of water-reducing agent, resists 180 parts of water 12 parts of penetration enhancer, 4 parts of reinforcing agent, 0.8 part of coupling agent;
The water-reducing agent is naphthalene water reducer;
The impervious agent is active micro silicon powder, diatomite and kaolin, the active micro silicon powder, diatomite and kaolinic Weight ratio is 2:1:1;
The reinforcing agent is basalt fibre, carbon fiber, and the weight ratio of the basalt fibre and carbon fiber is 1:1.2;
The coupling agent is silane coupling agent.
3. impervious anti-crack concrete according to claim 1, it is characterised in that:The fineness of the silicon powder is 1000- 1100 mesh, whiteness are 92-94 degree, Mohs' hardness 7.
4. impervious anti-crack concrete according to claim 1, it is characterised in that:The fineness of the diatomite is 400-450 Mesh, density 0.45-0.47g/cm3, porosity 90-92%, loose density 0.45-0.48g/cm3, Mohs' hardness 1.3.
5. impervious anti-crack concrete according to claim 1, it is characterised in that:The kaolinic fineness is 800-1000 Mesh.
6. impervious anti-crack concrete according to claim 1, it is characterised in that:The cement is the common silicic acid of P.O42.5 Salt cement, specific surface area 346m2/kg。
7. impervious anti-crack concrete according to claim 1, it is characterised in that:The fineness modulus of the middle sand is 2.5.
8. impervious anti-crack concrete according to claim 1, it is characterised in that:The partial size of the rubble is that 5-25mm is continuous Gradation, the apparent density of rubble are 2830kg/m3, loosely-packed porosity is 45%, loose bulk density 1560kg/m3
9. impervious anti-crack concrete according to claim 1, it is characterised in that:The flyash is II grade of flyash of F class, The fineness of flyash(45 μm of square hole screens tail over)It is 10%, water demand ratio 98%, loss on ignition 5.5%, water content 0.2%.
10. impervious anti-crack concrete according to claim 1, it is characterised in that:The miberal powder is S95 grade slag powder, close Degree is 3.0g/cm3, specific surface area 415m2/ kg, activity index(7d)It is 80%, activity index(28d)It is 96%, fluidity ratio It is 97%, water content 0.2%.
CN201810836001.8A 2018-07-26 2018-07-26 Impervious anti-crack concrete Pending CN108911625A (en)

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CN113200723A (en) * 2021-05-28 2021-08-03 海阳市利安建材有限公司 High-impermeability concrete and preparation method thereof
CN114349399A (en) * 2021-12-14 2022-04-15 深圳市深建混凝土有限公司 Composite high-strength concrete
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CN110792209B (en) * 2019-10-24 2021-05-07 天一建设发展有限公司 Facing fair-faced concrete wall and construction process thereof
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CN110792208B (en) * 2019-10-24 2021-05-07 天一建设发展有限公司 Construction method of fireproof building wall
CN110792209A (en) * 2019-10-24 2020-02-14 天一建设发展有限公司 Facing fair-faced concrete wall and construction process thereof
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CN111470821A (en) * 2020-04-26 2020-07-31 上海兆捷实业发展有限公司 High-performance fiber concrete and preparation method thereof
CN111454023A (en) * 2020-05-26 2020-07-28 平潭远隆贸易有限公司 Concrete and preparation method thereof
CN111847976A (en) * 2020-06-24 2020-10-30 江苏克裂特新材料有限公司 Preparation and application of novel concrete anti-cracking and anti-seepage composite additive
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CN111825392A (en) * 2020-07-10 2020-10-27 中建商品混凝土有限公司 Microbial erosion resistant protective concrete and preparation method thereof
CN112695759A (en) * 2020-12-07 2021-04-23 国投云南风电有限公司 Pouring method of fan base with good crack resistance
CN112456917A (en) * 2020-12-09 2021-03-09 北京欣江峰建筑材料有限公司 High-durability concrete and preparation method thereof
CN113200723A (en) * 2021-05-28 2021-08-03 海阳市利安建材有限公司 High-impermeability concrete and preparation method thereof
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CN114409354A (en) * 2022-02-24 2022-04-29 西安理工大学 High-corrosion-resistance basalt fiber modified concrete and preparation method thereof

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Application publication date: 20181130