CN104591776A - Thermal insulation anti-cracking foam concrete - Google Patents
Thermal insulation anti-cracking foam concrete Download PDFInfo
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- CN104591776A CN104591776A CN201510004802.4A CN201510004802A CN104591776A CN 104591776 A CN104591776 A CN 104591776A CN 201510004802 A CN201510004802 A CN 201510004802A CN 104591776 A CN104591776 A CN 104591776A
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Abstract
The invention discloses thermal insulation anti-cracking foam concrete. The thermal insulation anti-cracking foam concrete comprises the following raw materials: cement, glass beads, limestone flour, a composite foaming agent, metakaolin, basalt fiber, lignin fiber, alpha-methyl-2,4-pentanediol, vinyl acetate-ethylene copolymer, a water reducer, an early strength agent, a pumping aid and water, wherein the composite foaming agent contains the following raw materials: N-lauroyl-L-sodium glutamate, sodium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether, oleic acid, triethanolamine, lauryl diethanolamine, zeolite powder and water. The thermal insulation anti-cracking foam concrete has high strength, a good anti-cracking effect and excellent thermal insulation performance.
Description
Technical field
The present invention relates to technical field of concrete, particularly relate to a kind of insulation cracking resistance foamed concrete.
Background technology
Foamed concrete is mechanically fully foamed by whipping agent by the foamed system of foaming machine, and by foam and grout Homogeneous phase mixing, then the pumping system through foaming machine carries out cast-in-place construction or mould molding, through a kind of novel light lagging material containing a large amount of sealed porosity that natural curing is formed.It is a member in concrete extended familys, there is the performances such as density is little, quality light, insulation, sound insulation, antidetonation, be a kind of New Building Materials, can be applicable to retaining wall, build playground and track and field runway, sandwich component, support etc. as combined wall board, pipeline backfill, poor concrete packing course, roofing side slope, storage tank footing.But foamed concrete its there is low strength, the defect such as easy to crack in the application, its over-all properties is not very desirable.
Summary of the invention
The present invention proposes a kind of insulation cracking resistance foamed concrete, its intensity is high, and splitting resistance is good, and thermal and insulating performance is excellent.
The present invention proposes a kind of insulation cracking resistance foamed concrete, its raw material comprises following component by weight: cement 60-150 part, glass bead 25-50 part, limestone powder 20-48 part, composite foamable agent 15-25 part, metakaolin 10-50 part, basalt fibre 10-30 part, lignin fibre 8-25 part, alpha-methyl-2,4-pentanediol 0.4-1.5 part, vinyl acetate-ethylene copolymer 0.6-3 part, water reducer 3-8 part, hardening accelerator 2-5 part, pumping agent 1-3 part, water 100-180 part;
Wherein, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 2.5-6 part, Sodium dodecylbenzene sulfonate 1-2.5 part, polyoxyethylene fatty alkyl ether sulfonate 1-2.3 part, oleic acid 0.3-1.2 part, trolamine 1-2.5 part, lauroyl diethanolamine 5-8 part, zeolite powder 0.8-1.9 part, water 35-50 part.
Preferably; its raw material comprises following component by weight: cement 80-130 part, glass bead 35-42 part, limestone powder 29-36 part, composite foamable agent 18-21 part, metakaolin 25-32 part, basalt fibre 17-21 part, lignin fibre 13-18 part, alpha-methyl-2,4-pentanediol 0.8-1.1 part, vinyl acetate-ethylene copolymer 1.8-2.3 part, water reducer 5.6-6.2 part, hardening accelerator 3.4-4.2 part, pumping agent 1.8-2.3 part, water 145-160 part.
Preferably; its raw material comprises following component by weight: cement 120 parts, glass bead 38 parts, limestone powder 32 parts, composite foamable agent 19 parts, metakaolin 28.3 parts, basalt fibre 19 parts, lignin fibre 15 parts, alpha-methyl-2,4-pentanediol 0.96 part, vinyl acetate-ethylene copolymer 2.1 parts, water reducer 6 parts, hardening accelerator 3.7 parts, pumping agent 2.1 parts, 156 parts, water.
Preferably, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 3.8-4.3 part, Sodium dodecylbenzene sulfonate 1.8-2.2 part, polyoxyethylene fatty alkyl ether sulfonate 1.6-2.0 part, oleic acid 0.7-0.9 part, trolamine 1.5-2.2 part, lauroyl diethanolamine 6.5-7.2 part, zeolite powder 1.2-1.6 part, water 38-43 part.
Preferably, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 4 parts, Sodium dodecylbenzene sulfonate 2 parts, polyoxyethylene fatty alkyl ether sulfonate 1.75 parts, oleic acid 0.83 part, trolamine 1.96 parts, lauroyl diethanolamine 7 parts, zeolite powder 1.3 parts, 40 parts, water.
In the present invention, N-lauroyl-L-sodium in composite foamable agent is as foaming component, with Sodium dodecylbenzene sulfonate, polyoxyethylene fatty alkyl ether sulfonate coordinates can form hydrogen bond, make its performance complement synergy, add the surface active composition in whipping agent, reduce the surface tension of liquid phase, improve the foaminess of whipping agent, and facilitate the stability of foam, oleic acid, trolamine, lauroyl diethanolamine mating reaction further increases the foam stability energy of whipping agent, the blowing agent stability obtained is good, not perishable, foaming power is good, the consumption added in concrete is few, with basalt fibre, lignin fibre, metakaolin coordinates, bleeding and segregation can be reduced, delay concrete slump loss, hydrated cementitious can also be promoted with aluminate water generation reaction carbon calcium aluminosilicate, improve concrete intensity, alpha-methyl-2,4-pentanediol joins the surface tension that can reduce interstitial water in concrete as economization agent, the string stress produced when reducing pore dehydration, increases the viscosity of concrete pore water, reduce concrete shrinkage value, improve concrete anti-cracking performance, vinyl acetate-ethylene copolymer can improve the consistency of each component as interface modifier, coordinate with water reducer, hardening accelerator, pumping agent, coating film can be formed at concrete surface, stop the volatilization of internal moisture, ensure carrying out smoothly of cement aquation, maintain concrete intensity, in the present invention, each raw material cooperatively interacts according to aforementioned proportion, and the concrete pumpability obtained is good, and intensity is high, and splitting resistance is good, and test described insulation cracking resistance foamed concrete, obtain its thermal conductivity lower than 0.10W/mK, apparent density is 110-120kg/cm
3, 28d ultimate compression strength is 11-16MPa.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail; should understand; embodiment is only for illustration of the present invention, instead of for limiting the present invention, any amendment, equivalent replacement etc. made on basis of the present invention is all in protection scope of the present invention.
In a particular embodiment, insulation cracking resistance foamed concrete of the present invention, in its raw material, the weight part of cement can be 62, 63, 64.5, 67, 68, 69.3, 70, 70.5, 72, 73, 74, 74.6, 76, 76.3, 77, 77.4, 78, 78.5, 79, 79.2, 85, 86.3, 89, 94, 97, 98.6, 100, 105, 108, 112, 116, 121, 127, 134, 138.6, 143, 148 parts, the weight part of glass bead can be 25.6, 26, 26.3, 27, 27.5, 28, 28.6, 29, 29.3, 30, 30.4, 31, 31.6, 32, 32.5, 33, 33.7, 34, 34.6, 36, 37, 37.4, 45, 46, 46.7, 48, 48.3, 49, 49.2 parts, the weight part of limestone powder can be 23, 24, 26, 28, 29.3, 34, 35.6, 38, 39.3, 42, 45, 46, 47.8 parts, the weight part of composite foamable agent can be 15.6, 16, 17, 17.5, 18.3, 19.4, 20, 20.3, 21.3, 22, 22.6, 23, 23.4, 24, 24.3 parts, the weight part of metakaolin can be 10.3, 11, 12, 13, 14, 14.5, 16, 16.8, 18, 18.3, 19, 19.4, 20, 21, 23, 24, 26, 27.3, 28, 28.5, 29, 29.4, 33, 35, 36, 37, 38.4, 39, 39.3, 42, 43, 46, 47.4, 48, 48.3, 49, 49.5 parts, the weight part of basalt fibre can be 10.3, 11, 11.5, 13, 15, 16, 17.3, 18, 18.4, 19.3, 23, 25, 25.6, 27, 27.6, 28, 28.3, 29, 29.4 parts, the weight part of lignin fibre can be 8.3, 9, 9.4, 10, 10.5, 11, 11.6, 12, 12.3, 13.4, 14, 14.6, 15.3, 16, 16.7, 17, 17.4, 18.3, 19, 19.4, 20, 20.6, 21, 21.3, 22, 22.4, 23, 23.5, 24, 24.6 parts, alpha-methyl-2, the weight part of 4-pentanediol can be 0.46, 0.6, 0.67, 0.83, 0.9, 0.94, 1.2, 1.34, 1.4, 1.45 parts, the weight part of vinyl acetate-ethylene copolymer can be 0.64, 0.7, 0.75, 0.8, 0.9, 1, 1.2, 1.4, 1.56, 1.7, 1.86, 1.9, 2, 2.4, 2.6, 2.78, 2.9, 2.94 parts, the weight part of water reducer can be 3.2, 3.7, 3.9, 4, 4.3, 4.6, 4.8, 5, 5.3, 5.7, 5.9, 6.4, 6.8, 7, 7.2, 7.6, 7.85, 7.92 parts, the weight part of hardening accelerator can be 2.3, 2.7, 2.86, 3, 3.2, 3.58, 3.8, 3.94, 4, 4.5, 4.67, 4.8, 4.86, 4.93 parts, the weight part of pumping agent can be 1.2, 1.46, 1.56, 1.7, 1.83, 1.9, 2.46, 2.5, 2.63, 2.7, 2.75, 2.8, 2.86, 2.9, 2.94 parts, the weight part of water can be 102, 106, 110, 113, 117, 121, 126, 132, 138, 142, 146, 152, 157, 163, 167, 174, 176 parts.
Embodiment 1
Insulation cracking resistance foamed concrete of the present invention, its raw material comprises following component by weight: cement 60 parts, glass bead 50 parts, limestone powder 20 parts, composite foamable agent 25 parts, metakaolin 10 parts, basalt fibre 30 parts, lignin fibre 25 parts, alpha-methyl-2,4-pentanediol 0.4 part, vinyl acetate-ethylene copolymer 0.6 part, water reducer 3 parts, hardening accelerator 5 parts, pumping agent 1 part, 180 parts, water;
Wherein, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 2.5 parts, Sodium dodecylbenzene sulfonate 2.5 parts, polyoxyethylene fatty alkyl ether sulfonate 1 part, oleic acid 1.2 parts, trolamine 1 part, lauroyl diethanolamine 8 parts, zeolite powder 0.8 part, 50 parts, water.
Embodiment 2
Insulation cracking resistance foamed concrete of the present invention, its raw material comprises following component by weight: cement 150 parts, glass bead 25 parts, limestone powder 48 parts, composite foamable agent 15 parts, metakaolin 50 parts, basalt fibre 10 parts, lignin fibre 8 parts, alpha-methyl-2,4-pentanediol 1.5 parts, vinyl acetate-ethylene copolymer 3 parts, water reducer 8 parts, hardening accelerator 2 parts, pumping agent 3 parts, 100 parts, water;
Wherein, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 6 parts, Sodium dodecylbenzene sulfonate 1 part, polyoxyethylene fatty alkyl ether sulfonate 2.3 parts, oleic acid 0.3 part, trolamine 2.5 parts, lauroyl diethanolamine 5 parts, zeolite powder 1.9 parts, 35 parts, water.
Embodiment 3
Insulation cracking resistance foamed concrete of the present invention, its raw material comprises following component by weight: cement 105 parts, glass bead 30 parts, limestone powder 39.3 parts, composite foamable agent 22.6 parts, metakaolin 33 parts, basalt fibre 28.3 parts, lignin fibre 15.3 parts, alpha-methyl-2,4-pentanediol 1.2 parts, vinyl acetate-ethylene copolymer 2.4 parts, water reducer 7.6 parts, hardening accelerator 4.8 parts, pumping agent 2.5 parts, 138 parts, water;
Wherein, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 4.3 parts, Sodium dodecylbenzene sulfonate 1.2 parts, polyoxyethylene fatty alkyl ether sulfonate 1.6 parts, oleic acid 0.6 part, trolamine 1.9 parts, lauroyl diethanolamine 5.7 parts, zeolite powder 1.3 parts, 39 parts, water.
Embodiment 4
Insulation cracking resistance foamed concrete of the present invention, its raw material comprises following component by weight: cement 120 parts, glass bead 38 parts, limestone powder 32 parts, composite foamable agent 19 parts, metakaolin 28.3 parts, basalt fibre 19 parts, lignin fibre 15 parts, alpha-methyl-2,4-pentanediol 0.96 part, vinyl acetate-ethylene copolymer 2.1 parts, water reducer 6 parts, hardening accelerator 3.7 parts, pumping agent 2.1 parts, 156 parts, water;
Wherein, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 4 parts, Sodium dodecylbenzene sulfonate 2 parts, polyoxyethylene fatty alkyl ether sulfonate 1.75 parts, oleic acid 0.83 part, trolamine 1.96 parts, lauroyl diethanolamine 7 parts, zeolite powder 1.3 parts, 40 parts, water.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. an insulation cracking resistance foamed concrete, it is characterized in that, its raw material comprises following component by weight: cement 60-150 part, glass bead 25-50 part, limestone powder 20-48 part, composite foamable agent 15-25 part, metakaolin 10-50 part, basalt fibre 10-30 part, lignin fibre 8-25 part, alpha-methyl-2,4-pentanediol 0.4-1.5 part, vinyl acetate-ethylene copolymer 0.6-3 part, water reducer 3-8 part, hardening accelerator 2-5 part, pumping agent 1-3 part, water 100-180 part;
Wherein, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 2.5-6 part, Sodium dodecylbenzene sulfonate 1-2.5 part, polyoxyethylene fatty alkyl ether sulfonate 1-2.3 part, oleic acid 0.3-1.2 part, trolamine 1-2.5 part, lauroyl diethanolamine 5-8 part, zeolite powder 0.8-1.9 part, water 35-50 part.
2. be incubated cracking resistance foamed concrete according to claim 1; it is characterized in that; its raw material comprises following component by weight: cement 80-130 part, glass bead 35-42 part, limestone powder 29-36 part, composite foamable agent 18-21 part, metakaolin 25-32 part, basalt fibre 17-21 part, lignin fibre 13-18 part, alpha-methyl-2,4-pentanediol 0.8-1.1 part, vinyl acetate-ethylene copolymer 1.8-2.3 part, water reducer 5.6-6.2 part, hardening accelerator 3.4-4.2 part, pumping agent 1.8-2.3 part, water 145-160 part.
3. according to claim 1 or 2, be incubated cracking resistance foamed concrete; it is characterized in that; its raw material comprises following component by weight: cement 120 parts, glass bead 38 parts, limestone powder 32 parts, composite foamable agent 19 parts, metakaolin 28.3 parts, basalt fibre 19 parts, lignin fibre 15 parts, alpha-methyl-2,4-pentanediol 0.96 part, vinyl acetate-ethylene copolymer 2.1 parts, water reducer 6 parts, hardening accelerator 3.7 parts, pumping agent 2.1 parts, 156 parts, water.
4. according to any one of claim 1-3, be incubated cracking resistance foamed concrete, it is characterized in that, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 3.8-4.3 part, Sodium dodecylbenzene sulfonate 1.8-2.2 part, polyoxyethylene fatty alkyl ether sulfonate 1.6-2.0 part, oleic acid 0.7-0.9 part, trolamine 1.5-2.2 part, lauroyl diethanolamine 6.5-7.2 part, zeolite powder 1.2-1.6 part, water 38-43 part.
5. according to any one of claim 1-4, be incubated cracking resistance foamed concrete, it is characterized in that, its raw material of described composite foamable agent comprises by weight: N-lauroyl-L-sodium 4 parts, Sodium dodecylbenzene sulfonate 2 parts, polyoxyethylene fatty alkyl ether sulfonate 1.75 parts, oleic acid 0.83 part, trolamine 1.96 parts, lauroyl diethanolamine 7 parts, zeolite powder 1.3 parts, 40 parts, water.
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| CN201510004802.4A CN104591776A (en) | 2015-01-06 | 2015-01-06 | Thermal insulation anti-cracking foam concrete |
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| CN201510004802.4A CN104591776A (en) | 2015-01-06 | 2015-01-06 | Thermal insulation anti-cracking foam concrete |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174997A (en) * | 2015-08-07 | 2015-12-23 | 河南华泰建材开发有限公司 | Light foamed soil for high speed railway station maintenance and change filling |
| RU2616307C1 (en) * | 2015-10-19 | 2017-04-14 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Владимирский государственный университет имени Александра Григорьевича и Николая Григорьевича Столетовых" (ВлГУ) | Lightweight concrete on basis of mineral waste |
| CN106966659A (en) * | 2017-04-07 | 2017-07-21 | 南京航空航天大学 | A kind of water-fast crack resistance type foam concrete and preparation method |
| CN108017309A (en) * | 2017-11-09 | 2018-05-11 | 重庆燕皓建筑材料有限公司 | A kind of foam stabilizer for air bubble mix light-textured soil and preparation method thereof |
| CN109400070A (en) * | 2018-11-23 | 2019-03-01 | 广西科技大学 | A kind of light microporous sound-absorbing concrete inner partition plate and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503293A (en) * | 2011-09-22 | 2012-06-20 | 上海森瀚新型建材科技有限公司 | Microcellular foamed modified glazed hollow bead insulating mortar and preparation method thereof |
| CN103553508A (en) * | 2013-10-18 | 2014-02-05 | 盛忠章 | Low-cost aerated concrete block |
| CN104108949A (en) * | 2014-04-23 | 2014-10-22 | 中国地质大学（北京） | Novel heat-insulation fireproof porous concrete and preparation method thereof |
-
2015
- 2015-01-06 CN CN201510004802.4A patent/CN104591776A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503293A (en) * | 2011-09-22 | 2012-06-20 | 上海森瀚新型建材科技有限公司 | Microcellular foamed modified glazed hollow bead insulating mortar and preparation method thereof |
| CN103553508A (en) * | 2013-10-18 | 2014-02-05 | 盛忠章 | Low-cost aerated concrete block |
| CN104108949A (en) * | 2014-04-23 | 2014-10-22 | 中国地质大学（北京） | Novel heat-insulation fireproof porous concrete and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 姚燕: "《高性能混凝土的体积变形及裂缝控制》", 28 February 2011 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105174997A (en) * | 2015-08-07 | 2015-12-23 | 河南华泰建材开发有限公司 | Light foamed soil for high speed railway station maintenance and change filling |
| RU2616307C1 (en) * | 2015-10-19 | 2017-04-14 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Владимирский государственный университет имени Александра Григорьевича и Николая Григорьевича Столетовых" (ВлГУ) | Lightweight concrete on basis of mineral waste |
| CN106966659A (en) * | 2017-04-07 | 2017-07-21 | 南京航空航天大学 | A kind of water-fast crack resistance type foam concrete and preparation method |
| CN108017309A (en) * | 2017-11-09 | 2018-05-11 | 重庆燕皓建筑材料有限公司 | A kind of foam stabilizer for air bubble mix light-textured soil and preparation method thereof |
| CN108017309B (en) * | 2017-11-09 | 2020-08-07 | 重庆黑曜科技有限公司 | Foam stabilizer for bubble mixed light soil and preparation method thereof |
| CN109400070A (en) * | 2018-11-23 | 2019-03-01 | 广西科技大学 | A kind of light microporous sound-absorbing concrete inner partition plate and preparation method thereof |
| CN109400070B (en) * | 2018-11-23 | 2021-09-24 | 广西科技大学 | Lightweight microporous sound-absorbing concrete inner partition plate and manufacturing method thereof |
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