CN108911625A - Impervious anti-crack concrete - Google Patents
Impervious anti-crack concrete Download PDFInfo
- 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
- Authority
- CN
- China
- Prior art keywords
- parts
- agent
- impervious
- water
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 97
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 23
- 239000003638 reducing agent Substances 0.000 claims abstract description 20
- 239000010881 fly ash Substances 0.000 claims abstract description 19
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 18
- 239000004917 carbon fiber Substances 0.000 claims abstract description 18
- 239000004568 cement Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 14
- 230000003014 reinforcing Effects 0.000 claims abstract description 14
- 229920002748 Basalt fiber Polymers 0.000 claims abstract description 13
- 239000004576 sand Substances 0.000 claims abstract description 12
- 239000007822 coupling agent Substances 0.000 claims abstract description 11
- PZZYQPZGQPZBDN-UHFFFAOYSA-N Aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 10
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 8
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 125000001624 naphthyl group Chemical group 0.000 claims abstract description 5
- 239000002893 slag Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims 1
- 239000003961 penetration enhancing agent Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000011780 sodium chloride Substances 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 14
- 238000007792 addition Methods 0.000 abstract description 6
- 239000004566 building material Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 19
- 239000002994 raw material Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- 230000015271 coagulation Effects 0.000 description 8
- 238000005345 coagulation Methods 0.000 description 8
- 238000007906 compression Methods 0.000 description 7
- 238000001764 infiltration Methods 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000002522 swelling Effects 0.000 description 3
- 230000002195 synergetic Effects 0.000 description 3
- 239000005909 Kieselgur Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000002742 anti-folding Effects 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 230000002708 enhancing Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 206010018987 Haemorrhage Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910000629 Rh alloy Inorganic materials 0.000 description 1
- 210000002356 Skeleton Anatomy 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003487 anti-permeability Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000000740 bleeding Effects 0.000 description 1
- 231100000319 bleeding Toxicity 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000003467 diminishing Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000003000 nontoxic Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- -1 platinum-rhodium Chemical compound 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 125000005624 silicic acid group Chemical group 0.000 description 1
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- 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 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
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%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836001.8A CN108911625A (en) | 2018-07-26 | 2018-07-26 | Impervious anti-crack concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836001.8A CN108911625A (en) | 2018-07-26 | 2018-07-26 | Impervious anti-crack concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108911625A true CN108911625A (en) | 2018-11-30 |
Family
ID=64417428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810836001.8A Pending CN108911625A (en) | 2018-07-26 | 2018-07-26 | Impervious anti-crack concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108911625A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534751A (en) * | 2018-12-26 | 2019-03-29 | 陕西天石实业有限责任公司 | Tunnel double-lining concrete |
| CN109851299A (en) * | 2019-03-18 | 2019-06-07 | 北京国旺混凝土有限公司 | A kind of impervious high-strength concrete and preparation method thereof |
| CN110218045A (en) * | 2019-06-06 | 2019-09-10 | 北京泽华路桥工程有限公司 | A kind of crack resistance concrete and preparation method thereof |
| CN110451880A (en) * | 2019-08-07 | 2019-11-15 | 维特国际新材料（武汉）有限公司 | Anti-cracking and waterproofing concrete pouring procedure based on cement-base composite material |
| CN110668750A (en) * | 2019-09-25 | 2020-01-10 | 中建西部建设北方有限公司 | Special high-impermeability compensation shrinkage concrete for urban underground comprehensive pipe gallery and preparation method thereof |
| CN110792208A (en) * | 2019-10-24 | 2020-02-14 | 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 |
| CN111320437A (en) * | 2020-03-21 | 2020-06-23 | 上海石化安东混凝土有限公司 | Anti-crack 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066433A (en) * | 1991-05-04 | 1992-11-25 | 中国建筑材料科学研究院 | Sand-cement slurry or concrete erosion resistant material and manufacture method thereof |
| CN1903775A (en) * | 2006-08-07 | 2007-01-31 | 武汉理工大学 | High anticracking self union concrete admixture and its preparation method |
| CN101613220A (en) * | 2008-06-25 | 2009-12-30 | 中冶集团建筑研究总院 | Environment-friendly osmotic sealing bottom coating for concrete |
| CN101823864A (en) * | 2010-04-14 | 2010-09-08 | 吴智深 | Manufacturing method of aerated concrete |
| CN102561584A (en) * | 2012-01-18 | 2012-07-11 | 南京倍立达实业有限公司 | Fiber reinforced cement composite concrete precast construction member and production method thereof |
| CN103172296A (en) * | 2011-12-21 | 2013-06-26 | 中冶建筑研究总院有限公司 | Post-tensioned pre-stressed concrete beam pipeline grouting agent |
| CN103482940A (en) * | 2012-12-31 | 2014-01-01 | 中交四航工程研究院有限公司 | High-crack-resistance concrete |
| CN103739254A (en) * | 2013-12-18 | 2014-04-23 | 青岛青建新型材料有限公司 | Underground anti-cracking and impermeable concrete with strength grade no more than C50 and preparation method thereof |
| CN103979841A (en) * | 2014-03-31 | 2014-08-13 | 安徽鑫润新型材料有限公司 | Nanoconcrete and making method thereof |
| CN104072041A (en) * | 2014-06-27 | 2014-10-01 | 长安大学 | Impermeable anti-cracking concrete |
| CN104291740A (en) * | 2013-07-20 | 2015-01-21 | 吕孟龙 | Waterproof alkali activated inorganic polymer coating |
| CN104675021A (en) * | 2015-02-10 | 2015-06-03 | 山西省交通科学研究院 | Carbon fiber prestress concrete and construction method thereof |
| CN104710143A (en) * | 2013-12-12 | 2015-06-17 | 杨南宁 | Foamed concrete |
| CN105060791A (en) * | 2015-08-14 | 2015-11-18 | 武汉理工大学 | C60 self-compacting shrinkage-compensating anti-crack concrete suitable for steel anchor beam cable tower anchoring structure and preparation method of concrete |
| CN105236895A (en) * | 2015-10-27 | 2016-01-13 | 黑龙江科技大学 | High-performance gold tailing sand concrete |
| CN105271972A (en) * | 2015-09-21 | 2016-01-27 | 长沙县三和新型建材有限公司 | Mineral waste admixture hydraulic concrete |
| CN105601199A (en) * | 2015-12-25 | 2016-05-25 | 邢台建工商品混凝土有限公司 | Expansive anti-crack fiber concrete and preparation method therefor |
| CN105800980A (en) * | 2016-04-15 | 2016-07-27 | 殷石 | High-performance concrete pavements enhanced by hybrid fibers |
| CN106278002A (en) * | 2015-06-10 | 2017-01-04 | 嘉华特种水泥股份有限公司 | A kind of concrete duct resistant abrasion mending mortar |
| CN106517928A (en) * | 2016-09-18 | 2017-03-22 | 浙江长兴恒基科技有限公司 | FQY anti-crack silicon high-toughness concrete and selective construction preparation technology thereof |
| CN106830865A (en) * | 2016-12-30 | 2017-06-13 | 安徽华普环境修复材料科技有限公司 | A kind of special cracking resistance water-tight concrete baffle plate in massif slope |
| CN106915934A (en) * | 2015-12-25 | 2017-07-04 | 天津市泽元混凝土有限公司 | A kind of impervious frost thawing resistance concrete mix and its blending method |
| CN106915935A (en) * | 2015-12-25 | 2017-07-04 | 天津市泽元混凝土有限公司 | A kind of crack resistance type concrete mix and its blending method |
| CN106927759A (en) * | 2017-04-15 | 2017-07-07 | 天津合嘉宏建混凝土有限公司 | For the concrete of Overlong Concrete Structure construction |
| CN107285713A (en) * | 2017-06-28 | 2017-10-24 | 防城港市长歧水利管理所 | Side slope protection concrete and side slope protection construction method |
| CN107777956A (en) * | 2016-08-29 | 2018-03-09 | 天津顺德混凝土工程有限公司 | Anti-cracking large volume concrete |
| CN108191351A (en) * | 2018-03-08 | 2018-06-22 | 同济大学 | A kind of ultra-high performance concrete for mixing assorted fibre |
-
2018
- 2018-07-26 CN CN201810836001.8A patent/CN108911625A/en active Pending
Patent Citations (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066433A (en) * | 1991-05-04 | 1992-11-25 | 中国建筑材料科学研究院 | Sand-cement slurry or concrete erosion resistant material and manufacture method thereof |
| CN1903775A (en) * | 2006-08-07 | 2007-01-31 | 武汉理工大学 | High anticracking self union concrete admixture and its preparation method |
| CN101613220A (en) * | 2008-06-25 | 2009-12-30 | 中冶集团建筑研究总院 | Environment-friendly osmotic sealing bottom coating for concrete |
| CN101823864A (en) * | 2010-04-14 | 2010-09-08 | 吴智深 | Manufacturing method of aerated concrete |
| CN103172296A (en) * | 2011-12-21 | 2013-06-26 | 中冶建筑研究总院有限公司 | Post-tensioned pre-stressed concrete beam pipeline grouting agent |
| CN102561584A (en) * | 2012-01-18 | 2012-07-11 | 南京倍立达实业有限公司 | Fiber reinforced cement composite concrete precast construction member and production method thereof |
| CN103482940A (en) * | 2012-12-31 | 2014-01-01 | 中交四航工程研究院有限公司 | High-crack-resistance concrete |
| CN104291740A (en) * | 2013-07-20 | 2015-01-21 | 吕孟龙 | Waterproof alkali activated inorganic polymer coating |
| CN104710143A (en) * | 2013-12-12 | 2015-06-17 | 杨南宁 | Foamed concrete |
| CN103739254A (en) * | 2013-12-18 | 2014-04-23 | 青岛青建新型材料有限公司 | Underground anti-cracking and impermeable concrete with strength grade no more than C50 and preparation method thereof |
| CN103979841A (en) * | 2014-03-31 | 2014-08-13 | 安徽鑫润新型材料有限公司 | Nanoconcrete and making method thereof |
| CN104072041A (en) * | 2014-06-27 | 2014-10-01 | 长安大学 | Impermeable anti-cracking concrete |
| CN104675021A (en) * | 2015-02-10 | 2015-06-03 | 山西省交通科学研究院 | Carbon fiber prestress concrete and construction method thereof |
| CN106278002A (en) * | 2015-06-10 | 2017-01-04 | 嘉华特种水泥股份有限公司 | A kind of concrete duct resistant abrasion mending mortar |
| CN105060791A (en) * | 2015-08-14 | 2015-11-18 | 武汉理工大学 | C60 self-compacting shrinkage-compensating anti-crack concrete suitable for steel anchor beam cable tower anchoring structure and preparation method of concrete |
| CN105271972A (en) * | 2015-09-21 | 2016-01-27 | 长沙县三和新型建材有限公司 | Mineral waste admixture hydraulic concrete |
| CN105236895A (en) * | 2015-10-27 | 2016-01-13 | 黑龙江科技大学 | High-performance gold tailing sand concrete |
| CN106915934A (en) * | 2015-12-25 | 2017-07-04 | 天津市泽元混凝土有限公司 | A kind of impervious frost thawing resistance concrete mix and its blending method |
| CN105601199A (en) * | 2015-12-25 | 2016-05-25 | 邢台建工商品混凝土有限公司 | Expansive anti-crack fiber concrete and preparation method therefor |
| CN106915935A (en) * | 2015-12-25 | 2017-07-04 | 天津市泽元混凝土有限公司 | A kind of crack resistance type concrete mix and its blending method |
| CN105800980A (en) * | 2016-04-15 | 2016-07-27 | 殷石 | High-performance concrete pavements enhanced by hybrid fibers |
| CN107777956A (en) * | 2016-08-29 | 2018-03-09 | 天津顺德混凝土工程有限公司 | Anti-cracking large volume concrete |
| CN106517928A (en) * | 2016-09-18 | 2017-03-22 | 浙江长兴恒基科技有限公司 | FQY anti-crack silicon high-toughness concrete and selective construction preparation technology thereof |
| CN106830865A (en) * | 2016-12-30 | 2017-06-13 | 安徽华普环境修复材料科技有限公司 | A kind of special cracking resistance water-tight concrete baffle plate in massif slope |
| CN106927759A (en) * | 2017-04-15 | 2017-07-07 | 天津合嘉宏建混凝土有限公司 | For the concrete of Overlong Concrete Structure construction |
| CN107285713A (en) * | 2017-06-28 | 2017-10-24 | 防城港市长歧水利管理所 | Side slope protection concrete and side slope protection construction method |
| CN108191351A (en) * | 2018-03-08 | 2018-06-22 | 同济大学 | A kind of ultra-high performance concrete for mixing assorted fibre |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534751A (en) * | 2018-12-26 | 2019-03-29 | 陕西天石实业有限责任公司 | Tunnel double-lining concrete |
| CN109851299A (en) * | 2019-03-18 | 2019-06-07 | 北京国旺混凝土有限公司 | A kind of impervious high-strength concrete and preparation method thereof |
| CN110218045A (en) * | 2019-06-06 | 2019-09-10 | 北京泽华路桥工程有限公司 | A kind of crack resistance concrete and preparation method thereof |
| CN110451880A (en) * | 2019-08-07 | 2019-11-15 | 维特国际新材料（武汉）有限公司 | Anti-cracking and waterproofing concrete pouring procedure based on cement-base composite material |
| CN110451880B (en) * | 2019-08-07 | 2021-08-24 | 维特国际新材料（武汉）有限公司 | Anti-crack and anti-seepage concrete pouring method based on cement-based composite material |
| CN110668750A (en) * | 2019-09-25 | 2020-01-10 | 中建西部建设北方有限公司 | Special high-impermeability compensation shrinkage concrete for urban underground comprehensive pipe gallery and preparation method thereof |
| 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 |
| CN110792208A (en) * | 2019-10-24 | 2020-02-14 | 天一建设发展有限公司 | Construction method of fireproof building wall |
| 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 |
| CN111320437A (en) * | 2020-03-21 | 2020-06-23 | 上海石化安东混凝土有限公司 | Anti-crack concrete and preparation method thereof |
| 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 |
| CN111847976B (en) * | 2020-06-24 | 2022-04-15 | 江苏携砼新材料科技有限公司 | Preparation and application of anti-cracking and anti-seepage composite additive for concrete |
| 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 |
| CN114349399A (en) * | 2021-12-14 | 2022-04-15 | 深圳市深建混凝土有限公司 | Composite high-strength concrete |
| CN114349399B (en) * | 2021-12-14 | 2022-12-02 | 深圳市深建混凝土有限公司 | Composite high-strength concrete |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108911625A (en) | Impervious anti-crack concrete | |
| CN110256023B (en) | Anti-freezing, anti-permeability and anti-cracking concrete and preparation method thereof | |
| Ahmed et al. | Fabrication of thermal insulation geopolymer bricks using ferrosilicon slag and alumina waste | |
| Ramezanianpour et al. | Use of natural zeolite to produce self-consolidating concrete with low Portland cement content and high durability | |
| CN105174854B (en) | A kind of ceramic polished powder powder concrete | |
| CN108191351A (en) | A kind of ultra-high performance concrete for mixing assorted fibre | |
| CN107032687B (en) | High-elastic-die water-permeable environment-friendly mortar for sponge city produced by using construction waste and preparation method thereof | |
| Gencel et al. | Effect of waste marble powder and rice husk ash on the microstructural, physico-mechanical and transport properties of foam concretes exposed to high temperatures and freeze–thaw cycles | |
| CN109809775A (en) | A kind of self-compaction self-waterproof concrete | |
| CN110194624B (en) | High-strength heat-insulating concrete and preparation method thereof | |
| CN101851080B (en) | Acid rain corrosion resisting concrete additive and preparation method thereof | |
| CN107032734A (en) | A kind of preparation method of the high water-tight concrete of nano modification | |
| Muraleedharan et al. | Factors affecting the mechanical properties and microstructure of geopolymers from red mud and granite waste powder: A review | |
| CN109020456A (en) | A kind of Machine-made Sand dry-mixed mortar and preparation method thereof | |
| CN103435306A (en) | Low-shrinkage crack self-compacting concrete | |
| CN107673696A (en) | A kind of foam concrete self-insulating wall material and preparation method thereof | |
| CN103482940B (en) | High-crack-resistance concrete | |
| CN104609802A (en) | High-crack-resistant concrete | |
| CN109160780A (en) | High-strength heat-resisting concrete | |
| CN112694342B (en) | Lightweight high-strength high-ductility cement-based cementing composite material and preparation method thereof | |
| WO2015032131A1 (en) | Bentonite modifier, and modified bentonite and application thereof | |
| CN108793887A (en) | A kind of mass concrete and preparation method thereof | |
| CN109987912A (en) | Zeolite prepares iron tailings dry powder and mortar | |
| CN109293292B (en) | Concrete and preparation process thereof | |
| DK173458B1 (en) | Separate, self-leveling, self-compacting concrete with 'High Performance' properties |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |