CN107298560A - A kind of anti-permeation cracking-resistant concrete - Google Patents
A kind of anti-permeation cracking-resistant concrete Download PDFInfo
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- CN107298560A CN107298560A CN201710490170.6A CN201710490170A CN107298560A CN 107298560 A CN107298560 A CN 107298560A CN 201710490170 A CN201710490170 A CN 201710490170A CN 107298560 A CN107298560 A CN 107298560A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a kind of anti-permeation cracking-resistant concrete, by the material composition of following parts by weight：280 380 parts of cement, 50 100 parts of super fine powder additives, 13 parts of economization agent, 12 parts of polycarboxylate water-reducer, 10 20 parts of fiber, 0.005 0.05 parts of air entraining agent, 0.005 0.05 parts of defoamer, 0.05 1 parts of reinforcing agent, 5 15 parts of waste gypsum ceramic die powder, 700 900 parts of sand, 1,000 1100 parts of stone, 150 190 parts of water.Concrete of the present invention has preferable density, and impervious, cracking resistance is good, is conducive to resisting extraneous chemical attacks, good endurance.The industrial residues such as waste gypsum ceramic die, lithium slag, polishing brick dust can also be largely utilized, are conducive to economizing on resources, environmental protection.
Description
Technical field
The present invention relates to building material technical field, especially, it is related to a kind of anti-permeation cracking-resistant concrete.
Background technology
The development of concrete has had the history of more than 200 years, and because it has, intensity is high, raw material sources are wide, technique is simple
Singly, it is easy to shaping, low cost and other advantages, has obtained extensive in the engineerings such as highway, building, bridge, railway, ocean structure
Using being most large artificial material so far.
However, just also occurring in that the problem of some are new while concrete application technology obtains great achievement, such as mixing
Coagulate the endurance issues of soil, the especially endurance issues in concrete in marine environment.Concrete under briny environment
Other compositions in structure, chlorion and seawater are gradually immersed into concrete under concentration gradient effect with diffusion way, with
Binder materials therein reacts, and causes the erosion of concrete, and the phenomenon of structure premature failure is very serious.Because concrete
The inherent shortcoming of moulding process, its surface and inside are inevitably present about to be contained in many holes and crackle, seawater
3.5% or so salt, these salts are likely to cause to corrode to concrete, and under marine environment, seawater is directly acted on
The surface of concrete, penetrates into inside concrete by the hole and crackle of concrete, causes the corrosion of concrete, shadow at leisure
Ring the durability of concrete.
The content of the invention
Present invention aims at a kind of anti-permeation cracking-resistant concrete is provided, to solve what is come due to extraneous etching medium zone of erosion
The technical problem of concrete durability difference.
To achieve the above object, the present invention provides a kind of anti-permeation cracking-resistant concrete, by the material composition of following parts by weight：
280-380 parts of cement
50-100 parts of super fine powder additives
1-3 parts of economization agent
1-2 parts of polycarboxylate water-reducer
10-20 parts of fiber
0.005-0.05 parts of air entraining agent
0.005-0.05 parts of defoamer
0.05-1 parts of reinforcing agent
5-15 parts of waste gypsum ceramic die powder
700-900 parts of sand
1000-1100 parts of stone
150-190 parts of water
The cement is the cement of PO 42.5.
The specific surface area of the super fine powder additives is more than 600m2/ kg, is one in lithium ground-slag, silicon ash, ceramic tile polishing powder
Kind.
Lithium slag of the present invention is to utilize spodumene ore after 1200 DEG C of high-temperature calcinations, uses Production By Sulfuric Acid Process lithium carbonate
The byproduct that process is produced；The ceramic tile polishing powder falls scraping thicknessing, grinding and polishing and edging to be ceramic polished brick
The powder waste material with certain fineness produced by a series of deep added-time such as angle.Containing more in lithium slag and ceramic tile polishing powder
Amorphous silica, alundum (Al2O3) etc., have higher pozzolanic activity.
The economization agent is one kind in alpha-methyl-2,4- amylalcohols, dipropyl ethylene glycol monobutyl ether and dipropyl ethyl glycol.
It is preferred that, the economization agent is alpha-methyl-2,4- amylalcohols.
The polycarboxylate water-reducer solid content is 40%.
The fiber is that fiber, glass fibre, boron fibre, basalt fibre, aromatic polyamide that duds thing is made are fine
One kind in dimension.
It is preferred that, the fiber is that duds thing smashes the fiber being made.
The air entraining agent is lauryl sodium sulfate, neopelex and dodecyl dimethyl Benzylmagnesium chloride sodium
In one kind.
It is preferred that, the air entraining agent is dodecyl dimethyl Benzylmagnesium chloride sodium.
The defoamer is one kind in tributyl phosphate, polyoxyethylene polyoxypropylene glycerin ether and vinyl silicone oil.
It is preferred that, the defoamer is vinyl silicone oil.
The reinforcing agent is made up of two kinds in dipropylene glycol methyl ether, diethanol monoisopropanolamine and sodium tetraborate.
It is preferred that, the reinforcing agent is by sodium tetraborate and diethanol monoisopropanolamine by weight 5-8:1 composition.
The waste old ceramics mold powder is to be more than 400m by waste old ceramics mold breakdown, grinding to specific surface area2/ kg is obtained
's.
In the present invention, super fine powder additives particle is smaller, can be filled in the gap of cement granules, realizes tightly packed, raising
Binder materials density, furthermore it is also possible to be reacted with binder materials hydrated product, generates hydrated product, blocks capillary
Passage, further improving the density of concrete increases its anti-permeability performance；Economization agent can reduce the surface tension of pore water so as to
Reduce the shrinkage stress produced during pore water suction, the viscosity of concrete pore water can also be increased, enhancing water is in gelinite
In suction-operated, so as to reduce concrete early-age shrinkage, reduce crack index, concrete early-age plastic shrinkage is ftractureed
Reduce, later stage cracking resistance is improved；Fiber can reduce plastic shrinkage cracking and settlement crack；Air entraining agent can be stirred in concrete
Micro-bubble that is a large amount of uniform, stable and closing is introduced in journey, improves the workability and durability of concrete；Defoamer can be helped
Help and eliminate the unstable air pocket that concrete is introduced in mix, and then reduce the defect produced during concrete setting；
The reinforcing agent can speed up the hydration of binder materials early stage, promote binder materials just to generate more aqueous knot in early stage
Brilliant thing, accordingly reduces the quantity of free water, so as to reduce due to pore formed by free water evaporation, improves concrete dense
Reality and early strength；Waste old ceramics mould refers to the ceramic grout mould prepared by primary raw material of gypsum damaged,
To improve the intensity of mould, extend the mold use life-span, defoamer, water reducer, fiber, stone can be also added in mould molding
The materials such as sand high-abrasive material.During in concrete, wherein the defoamer remained can eliminate the air in concrete mix
Bubble, and then the defect produced during concrete setting is reduced, water reducer can improve the dispersiveness of binder materials in concrete
Can, concrete water amount is further reduced, fiber can increase the cracking resistance of concrete, and high-abrasive material can increase concrete abrasion-resistant
Property.
Calcium sulfate can react with the tricalcium aluminate in cement in waste old ceramics mould, form substantial amounts of calcium sulphoaluminate, quickly
Crystallize and form nucleus, promote crystallization, the growth of other components in binder materials, thus can put forward the early strength of concrete
Height, and appropriate calcium sulphoaluminate generation expansion counteracting crack caused by concrete shrinkage is formed, improve concrete impermeability.Value
It must illustrate, waste old ceramics mold powder volume is with C in binder materials in the present invention3A and C4The AF amount of bringing into and adjust, volume
Can not be excessive, later strength otherwise can be reduced, or even expand crack.
The invention has the advantages that：
(1) concrete of the present invention has preferable density, and impervious, cracking resistance is good, available for the construction of ocean engineering,
Be conducive to resisting extraneous chemical attacks good endurance.
(2) it is a large amount of using industrial residues such as waste gypsum ceramic die, lithium slag, polishing brick dusts, be conducive to saving money
Source, environmental protection.
(3) ingenious utilization waste old ceramics mould, makes concrete have more preferable impervious, anticracking, anti-wear performance.
Embodiment
Embodiments of the invention are described in detail below, but the present invention can be limited and covered according to claim
Multitude of different ways implement.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, belongs to the scope of protection of the invention.
Embodiment 1
A kind of anti-permeation cracking-resistant concrete, by the material composition of following weight fraction：280 parts of cement, 50 parts of lithium ground-slag, α-first
1 part of base -2,4- amylalcohols, 1 part of polycarboxylate water-reducer, 10 parts of duds fibres, 0.005 part of lauryl sodium sulfate, tricresyl phosphate fourth
0.005 part of ester, 0.01 part of dipropylene glycol methyl ether, 0.04 part of diethanol monoisopropanolamine, 5 parts of waste gypsum ceramic die powder, sand
700 parts, 1000 parts of stone, 150 parts of water.
It by material is the duds such as cotton, fiber crops, hair, silk, terylene, acrylic fibers, polyamide fibre, woollen goods, blended fibre knitwears that the duds fibres, which are,
Thing is size-reduced to handle what is obtained.
Embodiment 2
A kind of anti-permeation cracking-resistant concrete, by the material composition of following weight fraction：380 parts of cement, super fine powder additives 100
It is part, 3 parts of economization agent, 2 parts of polycarboxylate water-reducer, 20 parts of fiber, 0.05 part of air entraining agent, 0.05 part of defoamer, 1 part of reinforcing agent, useless
Old 15 parts of gypsum pottery mold powder, 900 parts of sand, 1100 parts of stone, 190 parts of water.
The cement is the cement of PO 42.5.
The super fine powder additives are silicon ash.
The economization agent is dipropyl ethylene glycol monobutyl ether.
The polycarboxylate water-reducer solid content is 40%.
The fiber is glass fibre.
The air entraining agent is neopelex.
The defoamer is polyoxyethylene polyoxypropylene glycerin ether.
The reinforcing agent is by dipropylene glycol methyl ether and diethanol monoisopropanolamine by weight 3:1 composition.
The waste old ceramics mold powder is to be more than 400m by waste old ceramics mold breakdown, grinding to specific surface area2/ kg is obtained
, wherein adding the powder polycarboxylic acids water reducing agent for accounting for land plaster weight 0.2% and 0.15% in ceramic die forming process
Polypropylene fibre.
Embodiment 3
A kind of anti-permeation cracking-resistant concrete, by the material composition of following weight fraction：310 parts of cement, 70 parts of super fine powder additives,
It is 2 parts of economization agent, 1.2 parts of polycarboxylate water-reducer, 12 parts of fiber, 0.01 part of air entraining agent, 0.02 part of defoamer, 0.5 part of reinforcing agent, useless
Old 10 parts of gypsum pottery mold powder, 780 parts of sand, 1050 parts of stone, 170 parts of water.
The cement is the cement of PO 42.5.
The super fine powder additives are ceramic tile polishing powder, after being the waste residue drying that ceramics factory polishing process is produced, then by
The small milling mill 5min of laboratory is obtained, and surface area is more than 650m2/kg。
The economization agent is alpha-methyl-2,4- amylalcohols.
The fiber is a diameter of 15um, and length is 12mm basalt fibre.
The air entraining agent is dodecyl dimethyl Benzylmagnesium chloride sodium.
The defoamer is vinyl silicone oil.
The reinforcing agent is by sodium tetraborate and diethanol monoisopropanolamine by weight 5:1 composition.
The waste old ceramics mold powder is to be more than 400m by waste old ceramics mold breakdown, grinding to specific surface area2/ kg is obtained
, wherein adding the powder polycarboxylic acids water reducing agent that accounts for land plaster weight 0.1%, 0.05% in ceramic die forming process
The quartz sand of tributyl phosphate defoamer, 0.1% polypropylene fibre and 10% fineness between 30-50 mesh.
Embodiment 4
A kind of anti-permeation cracking-resistant concrete, by the material composition of following weight fraction：280 parts of cement, super fine powder additives 100
It is part, 1 part of economization agent, 2 parts of polycarboxylate water-reducer, 10 parts of fiber, 0.05 part of air entraining agent, 0.005 part of defoamer, 1 part of reinforcing agent, useless
Old 5 parts of gypsum pottery mold powder, 900 parts of sand, 1000 parts of stone, 190 parts of water.
The cement is the cement of PO 42.5.
The super fine powder additives are lithium ground-slag, are that the lithium ground-slag after drying is milled to specific surface area more than 600m2/ kg is obtained
's.
The economization agent is dipropyl ethylene glycol monobutyl ether.
The fiber is a diameter of 15 ± 2um, and length is 300 ± 20um aromatic polyamide fibre.
The air entraining agent is dodecyl dimethyl Benzylmagnesium chloride sodium.
The defoamer is polyoxyethylene polyoxypropylene glycerin ether.
The reinforcing agent is by sodium tetraborate and diethanol monoisopropanolamine by weight 8:1 composition.
The waste old ceramics mold powder is to be more than 400m by waste old ceramics mold breakdown, grinding to specific surface area2/ kg is obtained
's.
Embodiment 5
A kind of anti-permeation cracking-resistant concrete, by the material composition of following weight fraction：350 parts of cement, 80 parts of super fine powder additives,
2 parts of economization agent, 1.5 parts of polycarboxylate water-reducer, 16 parts of fiber, 0.01 part of air entraining agent, 0.008 part of defoamer, 0.35 part of reinforcing agent,
8 parts of waste gypsum ceramic die powder, 850 parts of sand, 1080 parts of stone, 170 parts of water.
Embodiment 6
A kind of anti-permeation cracking-resistant concrete, by the material composition of following weight fraction：360 parts of cement, ceramic tile polishing powder 60
Part, 2.1 parts of dipropyl ethyl glycol, 1.3 parts of polycarboxylate water-reducer, 14 parts of boron fibre, 0.03 part of neopelex, ethene
0.01 part of base silicone oil, 0.6 part of sodium tetraborate, 0.1 part of diethanol monoisopropanolamine, 10 parts of waste gypsum ceramic die powder, sand 850
Part, 1000 parts of stone, 170 parts of water.
Comparative example 1
A kind of anti-permeation cracking-resistant concrete, by the material composition of following weight fraction：310 parts of cement, 70 parts of super fine powder additives,
2 parts of economization agent, 1.2 parts of polycarboxylate water-reducer, 12 parts of fiber, 0.01 part of air entraining agent, 0.02 part of defoamer, 0.5 part of reinforcing agent, sand
780 parts, 1050 parts of stone, 170 parts of water.
The cement is the cement of PO 42.5.
The super fine powder additives are ceramic tile polishing powder.
The economization agent is dipropyl ethyl glycol.
The economization agent is alpha-methyl-2,4- amylalcohols.
The fiber is a diameter of 15um, and length is 12mm basalt fibre.
The air entraining agent is dodecyl dimethyl Benzylmagnesium chloride sodium.
The defoamer is vinyl silicone oil.
The reinforcing agent is by sodium tetraborate and diethanol monoisopropanolamine by weight 5:1 composition.
The waste old ceramics mold powder is to be more than 400m by waste old ceramics mold breakdown, grinding to specific surface area2/ kg is obtained
, wherein adding the powder polycarboxylic acids water reducing agent that accounts for land plaster weight 0.1%, 0.05% in ceramic die forming process
The quartz sand of tributyl phosphate defoamer, 0.1% polypropylene fibre and 10% fineness between 30-50 mesh.
Comparative example 2
A kind of anti-permeation cracking-resistant concrete, by the material composition of following weight fraction：310 parts of cement, 70 parts of super fine powder additives,
1.2 parts of polycarboxylate water-reducer, 12 parts of fiber, 0.01 part of air entraining agent, 0.02 part of defoamer, 0.5 part of reinforcing agent, waste gypsum ceramics
10 parts of mold powder, 780 parts of sand, 1050 parts of stone, 170 parts of water.
The cement is the cement of PO 42.5.
The super fine powder additives are ceramic tile polishing powder.
The fiber is a diameter of 15um, and length is 12mm basalt fibre.
The air entraining agent is dodecyl dimethyl Benzylmagnesium chloride sodium.
The defoamer is vinyl silicone oil.
The reinforcing agent is by sodium tetraborate and diethanol monoisopropanolamine by weight 5:1 composition.
The waste old ceramics mold powder is to be more than 400m by waste old ceramics mold breakdown, grinding to specific surface area2/ kg is obtained
, wherein adding the powder polycarboxylic acids water reducing agent that accounts for land plaster weight 0.1%, 0.05% in ceramic die forming process
The quartz sand of tributyl phosphate defoamer, 0.1% polypropylene fibre and 10% fineness between 30-50 mesh.
Performance test
The concrete that embodiment 1-6 and comparative example 1-2 are obtained, carries out performance test, according to GB/T 50082-2009
《Standard for test methods of longterm performance and durability of ordinary concrete standard》In infiltration height method determine concrete sample maintenance age
Phase is 28d anti-permeability performance, and the crack resistance of concrete under restrained condition is determined using flat crack-resistant performance of concrete analyzer
Can, it as a result see the table below 1.
The performance test results of table 1
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of anti-permeation cracking-resistant concrete, it is characterised in that by the material composition of following parts by weight：It is 280-380 parts of cement, super
50-100 parts of fine admixture, 1-3 parts of economization agent, 1-2 parts of polycarboxylate water-reducer, 10-20 parts of fiber, air entraining agent 0.005-0.05
Part, 0.005-0.05 parts of defoamer, 0.05-1 parts of reinforcing agent, 5-15 parts of waste gypsum ceramic die powder, 700-900 parts of sand, stone
Sub- 1000-1100 parts, 150-190 parts of water.
2. anti-permeation cracking-resistant concrete according to claim 1, it is characterised in that the super fine powder additives are lithium ground-slag, silicon
One kind in ash, ceramic tile polishing powder.
3. anti-permeation cracking-resistant concrete according to claim 1, it is characterised in that the economization agent is alpha-methyl-2,4- penta
One kind in alcohol, dipropyl ethylene glycol monobutyl ether and dipropyl ethyl glycol.
4. anti-permeation cracking-resistant concrete according to claim 3, it is characterised in that the economization agent is alpha-methyl-2,4- penta
Alcohol.
5. anti-permeation cracking-resistant concrete according to claim 1, it is characterised in that the fiber is the fibre that duds thing is made
One kind in dimension, glass fibre, boron fibre, basalt fibre, aromatic polyamide fibre.
6. anti-permeation cracking-resistant concrete according to claim 5, it is characterised in that the fiber is that duds thing smashes what is be made
Fiber.
7. anti-permeation cracking-resistant concrete according to claim 1, it is characterised in that the air entraining agent is dodecyl sulphate
One kind in sodium, neopelex and dodecyl dimethyl Benzylmagnesium chloride sodium.
8. anti-permeation cracking-resistant concrete according to claim 1, it is characterised in that the defoamer is tributyl phosphate, gathered
One kind in oxypropylene polyoxyethylene glycerol ether and vinyl silicone oil.
9. anti-permeation cracking-resistant concrete according to claim 1, it is characterised in that the reinforcing agent by dipropylene glycol methyl ether,
Any two kinds of compositions in diethanol monoisopropanolamine and sodium tetraborate.
10. anti-permeation cracking-resistant concrete according to claim 9, it is characterised in that the reinforcing agent is by sodium tetraborate and two
Ethanol monoisopropanolamine is by weight 5-8:1 composition.
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| CN201710490170.6A CN107298560A (en) | 2017-06-25 | 2017-06-25 | A kind of anti-permeation cracking-resistant concrete |
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| CN201710490170.6A CN107298560A (en) | 2017-06-25 | 2017-06-25 | A kind of anti-permeation cracking-resistant concrete |
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| CN108164218A (en) * | 2018-01-15 | 2018-06-15 | 深圳市宝金华混凝土有限公司 | A kind of anti-crack concrete |
| CN110002811A (en) * | 2019-04-28 | 2019-07-12 | 唐县鸿铭混凝土搅拌有限公司 | A kind of high intensity highly-permeable concrete and preparation method thereof |
| CN110194618A (en) * | 2019-06-17 | 2019-09-03 | 佛冈锦华混凝土有限公司 | A kind of construction refuse regenerated concrete and preparation method thereof |
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| CN110002811A (en) * | 2019-04-28 | 2019-07-12 | 唐县鸿铭混凝土搅拌有限公司 | A kind of high intensity highly-permeable concrete and preparation method thereof |
| CN110002811B (en) * | 2019-04-28 | 2021-04-27 | 唐县鸿铭混凝土搅拌有限公司 | High-strength high-water-permeability concrete and preparation method thereof |
| CN110194618A (en) * | 2019-06-17 | 2019-09-03 | 佛冈锦华混凝土有限公司 | A kind of construction refuse regenerated concrete and preparation method thereof |
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Application publication date: 20171027 |