CN105541191A - Anti-collapse high-strength concrete - Google Patents
Anti-collapse high-strength concrete Download PDFInfo
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- CN105541191A CN105541191A CN201410593634.2A CN201410593634A CN105541191A CN 105541191 A CN105541191 A CN 105541191A CN 201410593634 A CN201410593634 A CN 201410593634A CN 105541191 A CN105541191 A CN 105541191A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The present invention discloses anti-collapse high-strength concrete, which comprises, by weight, 400-500 parts of broken stone, 200-250 parts of sand, 100-150 parts of cement, a proper amount of water, 25-40 parts of basalt fibers, 20-40 parts of aluminum silicate fibers, 50-100 parts of slag, and 20-40 parts of an anti-collapse auxiliary agent, wherein the anti-collapse auxiliary agent comprises, by weight, 45-55 parts of a polycarboxylate superplasticizer, 15-25 parts of cellulose graft chitosan, 20-30 parts of fly ash, 5-10 parts of a silane coupling agent, 2-5 parts of polyvinylpyrrolidone, 2-6 parts of silicon carbide, 5-10 parts of expanded perlite powder, and 2-8 parts of gelatin powder. According to the present invention, the basalt fibers, the aluminum silicate fibers and the slag are concurrently use to increase the compressive strength, the bonding strength, the fire resistance and the like of concrete; and with the use of the anti-collapse auxiliary agent, the collapse of the concrete is substantially reduced, the concrete having the excellent comprehensive performance is obtained, and the application of the concrete in the building field is expanded.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of anti-collapse high-strength concrete.
Background technology
Concrete is one of contemporary topmost material of construction, and it has abundant raw material, cheap, the simple feature of production technique, thus makes its consumption increasing.Simultaneously also to have ultimate compression strength high for concrete, good endurance, the features such as strength grade wide ranges.These features make its use range very extensive, and not only using in various construction work, is exactly shipbuilding, mechanical industry, the exploitation of ocean, geothermal engineering etc., and concrete is also important material.Concrete is generally site operation, and site operation can impact environment, therefore, ready mixed concrete more and more receives publicity, but ready mixed concrete is due to the chemical reaction of various material, and especially water rate control is bad, the problem of caving in As time goes on can be there is.In addition, existing fibrous concrete strongthener is often more single, causes concrete Performance comparision single.
Summary of the invention
The invention provides a kind of anti-collapse high-strength concrete, solve the concrete existed in prior art and easily produce and cave in and technical problem that concrete performance is more single.
Technical scheme of the present invention is, a kind of anti-collapse high-strength concrete, comprises the component of following composition by weight: rubble 400-500 part, sand 200-250 part, cement 100-150 part, water is appropriate, basalt fibre 25-40 part, aluminum silicate fiber 20-40 part, slag 50-100 part, anti-collapse auxiliary agent 20-40 part; Wherein anti-collapse auxiliary agent comprises the component of following weight part: poly carboxylic acid series water reducer 45-55 part, cellulose graft chitosan 15-25 part, flyash 20-30 part, silane coupling agent 5-10 part, polyvinylpyrrolidone 2-5 part, silicon carbide 2-6 part, swelling perlite powder 5-10 part, jelly powder 2-8 part.
Feature of the present invention is also,
Slag is selected from the one in blast-furnace slag, Titanium slag or Copper Slag.
The filament diameter of basalt fibre is 6-8um, and length is 2-4cm; Aluminum silicate fiber filament diameter is 3-5um, and length is 2-5cm.
The invention has the beneficial effects as follows, employing basalt fibre, aluminum silicate fiber 20-40 part slag use simultaneously, improve concrete compressive strength, cohesive strength and resistivity against fire etc., the use of anti-collapse auxiliary agent in addition, greatly reduce concrete caving in, obtain the concrete of excellent combination property.
Embodiment
Below in conjunction with embodiment to the present invention to further detailed description.
Anti-collapse high-strength concrete of the present invention, comprises the component of following composition by weight: rubble 400-500 part, sand 200-250 part, cement 100-150 part, water is appropriate, basalt fibre 25-40 part, aluminum silicate fiber 20-40 part, slag 50-100 part, anti-collapse auxiliary agent 20-40 part; Wherein anti-collapse auxiliary agent comprises the component of following weight part: poly carboxylic acid series water reducer 45-55 part, cellulose graft chitosan 15-25 part, flyash 20-30 part, silane coupling agent 5-10 part, polyvinylpyrrolidone 2-5 part, silicon carbide 2-6 part, swelling perlite powder 5-10 part, jelly powder 2-8 part.
Wherein, slag is selected from the one in blast-furnace slag, Titanium slag or Copper Slag; The filament diameter of basalt fibre is 6-8um, and length is 2-4cm; Aluminum silicate fiber filament diameter is 3-5um, and length is 2-5cm.
Anti-collapse concrete preparation method of the present invention is as follows:
Step 1: count by weight, take poly carboxylic acid series water reducer 45-55 part, cellulose graft chitosan 15-25 part, flyash 20-30 part, silane coupling agent 5-10 part, polyvinylpyrrolidone 2-5 part, silicon carbide 2-6 part, swelling perlite powder 5-10 part, jelly powder 2-8 part mixes, obtained anti-collapse auxiliary agent.
Step 2: count by weight, takes rubble 400-500 part, sand 200-250 part, cement 100-150 part, basalt fibre 20-40 part, aluminum silicate fiber 15-30 part, is ground into slag 50-100 part of fine powder, anti-collapse auxiliary agent 20-40 part, add water and stir, obtained slurry, is poured in mould, then maintenance 7 ~ 10 days in the wet environment of 15-25 DEG C, both anti-collapse high-strength concrete.
Basalt fibre is a kind of inorganic environment-friendly Green High Performance filamentary material, and it is good stability not only, but also has electrical insulating property, anticorrosive, flame resistant, the multiple excellent properties such as high temperature resistant.Basalt is a kind of high performance volcanics component, and this special silicate, makes basalt fibre have excellent chemical resistant properties, have the advantage of alkali resistance especially.Therefore, basalt fibre is that alternative polypropylene, polyacrylonitrile are for the concrete excellent material of refinforced cement; Basalt fibre is compared with the high technical fibre such as carbon fiber, aramid fiber, superhigh molecular weight polyethylene fibers, except there is the feature of high technical fibre high strength, high-modulus, basalt fibre also has that high thermal resistance is good, anti-oxidant, good, the incompressible intensity of radioprotective, thermal acoustic insulation, filterableness and shearing resistance high, be adapted to various environment under the excellent properties such as to use, and cost performance is good, it is a kind of ceramic of pure natural.Therefore, in cement concrete, add basalt fibre, can greatly improve concrete intensity, high thermal resistance, crushing resistance etc.
Aluminum silicate fiber is a kind of lightweight refractory, this material has the features such as unit weight is light, high temperature resistant, Heat stability is good, good thermal shock, expanded by heating are little, heat-proof quality good, compressive strength is high, Resistance to wind Erosion is excellent, toughness is high, long service life, tensile strength large, nontoxic.Therefore, in cement concrete, add aluminum silicate fiber, concrete resistivity against fire, resistance to pressure can be improved, thermotolerance, and concrete cracking can be prevented.
Slag is the active filler of cement concrete, can prepare high-strength, high performance concrete.Slag super-fine powder concrete water-retentivity, plasticity-are good, and bleeding is few, have good workability, hydration heat can also be reduced, be conducive to the crack preventing mass concrete internal temperature rise from causing, produce more ettringite crystallization, compensate the drying shrinkage because fine powder in concrete too much causes.So slag is a kind of cost-effective coagulating agent raw material.
Anti-collapse auxiliary agent of the present invention, what the too high levels can improved in concrete aggregate caused caves in.Therefore, basalt fibre, aluminum silicate fiber, slag and anti-collapse auxiliary agent are used jointly with suitable ratio, the concrete of excellent combination property can be prepared.
Embodiment 1
Count by weight, take poly carboxylic acid series water reducer 45 parts, cellulose graft chitosan 25 parts, 20 parts, flyash, silane coupling agent 5 parts, polyvinylpyrrolidone 2 parts, 4 parts, silicon carbide, swelling perlite powder 5 parts, jelly powder 5 parts mix, obtained anti-collapse auxiliary agent;
Count by weight, take rubble 400 parts, 220 parts, sand, cement 150 parts, basalt fibre 20 parts, aluminum silicate fiber 20 parts, is ground into 80 parts, the slag of fine powder, anti-collapse auxiliary agent 30 parts, add water and stir, obtained slurry, is poured in mould, then maintenance 10 days in the wet environment of 15 DEG C, both anti-collapse high-strength concrete.
Embodiment 2
Count by weight, take poly carboxylic acid series water reducer 55 parts, cellulose graft chitosan 15 parts, 30 parts, flyash, silane coupling agent 8 parts, polyvinylpyrrolidone 3 parts, 2 parts, silicon carbide, swelling perlite powder 10 parts, jelly powder 2 parts mix, obtained anti-collapse auxiliary agent.
Count by weight, take rubble 500 parts, 200 parts, sand, cement 100 parts, basalt fibre 40 parts, aluminum silicate fiber 30 parts, is ground into 50 parts, the slag of fine powder, anti-collapse auxiliary agent 20 parts, add water and stir, obtained slurry, is poured in mould, then maintenance 7 days in the wet environment of 25 DEG C, both anti-collapse high-strength concrete.
Embodiment 3
Count by weight, take poly carboxylic acid series water reducer 50 parts, cellulose graft chitosan 20 parts, 25 parts, flyash, silane coupling agent 10 parts, polyvinylpyrrolidone 5 parts, 6 parts, silicon carbide, swelling perlite powder 8 parts, jelly powder 8 parts mix, obtained anti-collapse auxiliary agent;
Count by weight, take rubble 450 parts, 250 parts, sand, cement 120 parts, basalt fibre 30 parts, aluminum silicate fiber 15 parts, is ground into 100 parts, the slag of fine powder, anti-collapse auxiliary agent 40 parts, add water and stir, obtained slurry, is poured in mould, then maintenance 8 days in the wet environment of 20 DEG C, both anti-collapse high-strength concrete.
The resistance to high-strength concrete that caves in prepared by above embodiment, compressive strength is greater than 50Mpa, and the test of large plate cracking method has no cracking, and at 1000 DEG C, concrete compressive strength still can reach 15Mpa.
Claims (3)
1. an anti-collapse high-strength concrete, is characterized in that, comprises the component of following composition by weight: rubble 400-500 part, sand 200-250 part, cement 100-150 part, water is appropriate, basalt fibre 25-40 part, aluminum silicate fiber 20-40 part, slag 50-100 part, anti-collapse auxiliary agent 20-40 part; Wherein anti-collapse auxiliary agent comprises the component of following weight part: poly carboxylic acid series water reducer 45-55 part, cellulose graft chitosan 15-25 part, flyash 20-30 part, silane coupling agent 5-10 part, polyvinylpyrrolidone 2-5 part, silicon carbide 2-6 part, swelling perlite powder 5-10 part, jelly powder 2-8 part.
2. a kind of anti-collapse high-strength concrete as claimed in claim 1, it is characterized in that, described slag is selected from the one in blast-furnace slag, Titanium slag, Copper Slag.
3. a kind of anti-collapse high-strength concrete as claimed in claim 1, is characterized in that, the filament diameter of described basalt fibre is 6-8um, and length is 2-4cm; Described aluminum silicate fiber filament diameter is 3-5um, and length is 2-5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410593634.2A CN105541191A (en) | 2014-10-29 | 2014-10-29 | Anti-collapse high-strength concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410593634.2A CN105541191A (en) | 2014-10-29 | 2014-10-29 | Anti-collapse high-strength concrete |
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| CN105541191A true CN105541191A (en) | 2016-05-04 |
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| CN201410593634.2A Pending CN105541191A (en) | 2014-10-29 | 2014-10-29 | Anti-collapse high-strength concrete |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892632A (en) * | 2017-02-27 | 2017-06-27 | 苏州科斯曼照明工程有限公司 | A kind of concrete for brick wall door opening displacement |
| CN107473672A (en) * | 2017-09-27 | 2017-12-15 | 深圳市圣威宝混凝土有限公司 | A kind of concrete and its preparation technology |
| CN107572997A (en) * | 2017-10-19 | 2018-01-12 | 杨忠华 | A kind of permanent seal cooling blast furnace granulated slag building block |
-
2014
- 2014-10-29 CN CN201410593634.2A patent/CN105541191A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892632A (en) * | 2017-02-27 | 2017-06-27 | 苏州科斯曼照明工程有限公司 | A kind of concrete for brick wall door opening displacement |
| CN106892632B (en) * | 2017-02-27 | 2019-02-12 | 重庆驰旭混凝土有限公司 | A kind of concrete for the displacement of brick wall door opening |
| CN107473672A (en) * | 2017-09-27 | 2017-12-15 | 深圳市圣威宝混凝土有限公司 | A kind of concrete and its preparation technology |
| CN107572997A (en) * | 2017-10-19 | 2018-01-12 | 杨忠华 | A kind of permanent seal cooling blast furnace granulated slag building block |
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Application publication date: 20160504 |