CN105152600A - Anti-cracking concrete - Google Patents
Anti-cracking concrete Download PDFInfo
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- CN105152600A CN105152600A CN201510534170.2A CN201510534170A CN105152600A CN 105152600 A CN105152600 A CN 105152600A CN 201510534170 A CN201510534170 A CN 201510534170A CN 105152600 A CN105152600 A CN 105152600A
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Abstract
The invention discloses anti-cracking concrete and belongs to the technical field of building materials. The anti-cracking concrete comprises, by weight, 300-600 parts of ordinary Portland cement, 200-400 parts of crushed stone, 100-300 parts of river sand, 6-10 parts of barite powder, 6-10 parts of sodium borate, 2-10 parts of phosphorous slag powder, 4-10 parts of silicon dioxide powder, 6-10 parts of cellulosic fiber, 4-12 parts of polypropylene fiber, and 350-450 parts of water. The anti-cracking concrete is capable of effectively preventing cracking of concrete structures caused by nonstructural factors, such as concrete temperature and concrete shrinkage, raw materials are rich and low in price, a production process is simple, the cost is low, and the anti-cracking concrete is suitable for large-scale production.
Description
Technical field
The present invention relates to a kind of concrete of anticracking, belong to building material technical field.
Background technology
Concrete, referred to as " concrete ", typically refer to and make gelling material with cement, sand, masonry gather materials, and coordinate by a certain percentage with water, through stirring gained.Concrete has abundant raw material, cheap, the simple feature of production technique, make its use range very extensive, not only use in various civil engineering work, be exactly the exploitation, geothermal engineering etc. of shipbuilding, mechanical industry, ocean, concrete is also important material.
Existing concrete material ubiquity tension, folding strength are low, and shock resistance is poor, cannot meet the demand of some special construction field; Meanwhile, existing concrete material is in Mass Concrete, and distress in concrete is comparatively general, have impact on construction quality.
Summary of the invention
The object of the invention is to make up the deficiencies in the prior art, a kind of concrete of anticracking is provided.Anti-crack concrete of the present invention effectively can prevent the cracking phenomena in the concrete structure caused because of the unstructuredness such as concrete temperature, drying shrinkage reason,
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of concrete of anticracking, comprises the raw material of following parts by weight: ordinary Portland cement 300 ~ 600 parts, rubble 200 ~ 400 parts, 100 ~ 300 parts, river sand, heavy crystal sand 6 ~ 10 parts, Sodium Tetraborate 6 ~ 10 parts, phosphorus slag powder 2 ~ 10 parts, silicon dioxide powder 4 ~ 10 parts, cellulosic fibre 6 ~ 10 parts, polypropylene fibre 4 ~ 12 parts and 350 ~ 450 parts, water.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the raw material of following parts by weight is comprised: ordinary Portland cement 450 parts, rubble 300 parts, 200 parts, river sand, heavy crystal sand 8 parts, Sodium Tetraborate 8 parts, phosphorus slag powder 6 parts, silicon dioxide powder 7 parts, cellulosic fibre 8 parts, polypropylene fibre 8 parts and 400 parts, water.
Further, described ordinary Portland cement is 52.5 grades of ordinary Portland cements.
Further, the particle diameter of described rubble is 5 ~ 25cm.
Further, the fineness modulus of described river sand is 3.0 ~ 2.3, and particle diameter is 0.5 ~ 0.35mm.
Further, the fineness modulus of described heavy crystal sand is 2.6, and in each cubic metre, the weight of described heavy crystal sand is 4000kg.
Further, described phosphorus slag powder specific surface area>=400m
2/ kg, 28d activity index>=70%.
Further, described silicon dioxide powder is nano-silica powder.
Further, the mean length of described cellulosic fibre is 2.1mm, and specific diameter is 17 ~ 20 μm.
Further, described polypropylene fibre is Monofilament polypropylene.
The invention has the beneficial effects as follows:
(1) anti-crack concrete of the present invention effectively can prevent the cracking phenomena in the concrete structure caused because of the unstructuredness such as concrete temperature, drying shrinkage reason.
(2) abundant raw material of the present invention, cheap, production technique is simple, cost is low, be applicable to large-scale production.
Embodiment
Be described principle of the present invention and feature below in conjunction with specific embodiment, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1:
A kind of concrete of anticracking, comprise the raw material of following parts by weight: ordinary Portland cement 300 parts, rubble 400 parts, 100 parts, river sand, heavy crystal sand 10 parts, Sodium Tetraborate 6 parts, phosphorus slag powder 10 parts, silicon dioxide powder 4 parts, cellulosic fibre 10 parts, polypropylene fibre 4 parts and 450 parts, water, wherein said ordinary Portland cement is 52.5 grades of ordinary Portland cements, the particle diameter of described rubble is 5 ~ 25cm, the fineness modulus of described river sand is 3.0 ~ 2.3, particle diameter is 0.5 ~ 0.35mm, the fineness modulus of described heavy crystal sand is 2.6, in each cubic metre, the weight of described heavy crystal sand is 4000kg, described phosphorus slag powder specific surface area>=400m
2/ kg, 28d activity index>=70%, described silicon dioxide powder is nano-silica powder, and the mean length of described cellulosic fibre is 2.1mm, and specific diameter is 17 ~ 20 μm, and described polypropylene fibre is Monofilament polypropylene.
Embodiment 2:
A kind of concrete of anticracking, comprise the raw material of following parts by weight: ordinary Portland cement 450 parts, rubble 300 parts, 200 parts, river sand, heavy crystal sand 8 parts, Sodium Tetraborate 8 parts, phosphorus slag powder 6 parts, silicon dioxide powder 7 parts, cellulosic fibre 8 parts, polypropylene fibre 8 parts and 400 parts, water, wherein said ordinary Portland cement is 52.5 grades of ordinary Portland cements, the particle diameter of described rubble is 5 ~ 25cm, the fineness modulus of described river sand is 3.0 ~ 2.3, particle diameter is 0.5 ~ 0.35mm, the fineness modulus of described heavy crystal sand is 2.6, in each cubic metre, the weight of described heavy crystal sand is 4000kg, described phosphorus slag powder specific surface area>=400m
2/ kg, 28d activity index>=70%, described silicon dioxide powder is nano-silica powder, and the mean length of described cellulosic fibre is 2.1mm, and specific diameter is 17 ~ 20 μm, and described polypropylene fibre is Monofilament polypropylene.
Embodiment 3:
A kind of concrete of anticracking, comprise the raw material of following parts by weight: ordinary Portland cement 600 parts, rubble 200 parts, 300 parts, river sand, heavy crystal sand 6 parts, Sodium Tetraborate 10 parts, phosphorus slag powder 2 parts, silicon dioxide powder 10 parts, cellulosic fibre 6 parts, polypropylene fibre 12 parts and 350 parts, water, wherein said ordinary Portland cement is 52.5 grades of ordinary Portland cements, the particle diameter of described rubble is 5 ~ 25cm, the fineness modulus of described river sand is 3.0 ~ 2.3, particle diameter is 0.5 ~ 0.35mm, the fineness modulus of described heavy crystal sand is 2.6, in each cubic metre, the weight of described heavy crystal sand is 4000kg, described phosphorus slag powder specific surface area>=400m
2/ kg, 28d activity index>=70%, described silicon dioxide powder is nano-silica powder, and the mean length of described cellulosic fibre is 2.1mm, and specific diameter is 17 ~ 20 μm, and described polypropylene fibre is Monofilament polypropylene.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the concrete of an anticracking, it is characterized in that, comprise the raw material of following parts by weight: ordinary Portland cement 300 ~ 600 parts, rubble 200 ~ 400 parts, 100 ~ 300 parts, river sand, heavy crystal sand 6 ~ 10 parts, Sodium Tetraborate 6 ~ 10 parts, phosphorus slag powder 2 ~ 10 parts, silicon dioxide powder 4 ~ 10 parts, cellulosic fibre 6 ~ 10 parts, polypropylene fibre 4 ~ 12 parts and 350 ~ 450 parts, water.
2. the concrete of a kind of anticracking according to claim 1, it is characterized in that, comprise the raw material of following parts by weight: ordinary Portland cement 450 parts, rubble 300 parts, 200 parts, river sand, heavy crystal sand 8 parts, Sodium Tetraborate 8 parts, phosphorus slag powder 6 parts, silicon dioxide powder 7 parts, cellulosic fibre 8 parts, polypropylene fibre 8 parts and 400 parts, water.
3. the concrete of a kind of anticracking according to claim 1 and 2, is characterized in that, described ordinary Portland cement is 52.5 grades of ordinary Portland cements.
4. the concrete of a kind of anticracking according to claim 1 and 2, is characterized in that, the particle diameter of described rubble is 5 ~ 25cm.
5. the concrete of a kind of anticracking according to claim 1 and 2, is characterized in that, the fineness modulus of described river sand is 3.0 ~ 2.3, and particle diameter is 0.5 ~ 0.35mm.
6. the concrete of a kind of anticracking according to claim 1 and 2, is characterized in that, the fineness modulus of described heavy crystal sand is 2.6, and in each cubic metre, the weight of described heavy crystal sand is 4000kg.
7. the concrete of a kind of anticracking according to claim 1 and 2, is characterized in that, described phosphorus slag powder specific surface area>=400m
2/ kg, 28d activity index>=70%.
8. the concrete of a kind of anticracking according to claim 1 and 2, is characterized in that, described silicon dioxide powder is nano-silica powder.
9. the concrete of a kind of anticracking according to claim 1 and 2, is characterized in that, the mean length of described cellulosic fibre is 2.1mm, and specific diameter is 17 ~ 20 μm.
10. the concrete of a kind of anticracking according to claim 1 and 2, is characterized in that, described polypropylene fibre is Monofilament polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510534170.2A CN105152600A (en) | 2015-08-27 | 2015-08-27 | Anti-cracking concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510534170.2A CN105152600A (en) | 2015-08-27 | 2015-08-27 | Anti-cracking concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105152600A true CN105152600A (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510534170.2A Pending CN105152600A (en) | 2015-08-27 | 2015-08-27 | Anti-cracking concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365525A (en) * | 2016-08-22 | 2017-02-01 | 桂林新艺制冷设备有限责任公司 | Novel anti-crack concrete |
| WO2023053116A1 (en) * | 2021-09-30 | 2023-04-06 | Anyway Solid Environmental Solutions Ltd. | Low carbon emission concrete for walkways and paths, binders and methods thereof |
Citations (5)
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|---|---|---|---|---|
| WO2007009408A1 (en) * | 2005-07-16 | 2007-01-25 | Rode Betontechnologie Gmbh | Mixture for producing self-compacting concrete |
| CN103527216A (en) * | 2013-09-25 | 2014-01-22 | 暨南大学 | High performance fiber concrete suitable for metro segment with large diameter and application of high performance fiber concrete |
| CN103755233A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Crack-resistant concrete |
| CN103819148A (en) * | 2014-02-26 | 2014-05-28 | 中天建设集团有限公司 | Steel slag concrete |
| CN104386959A (en) * | 2014-10-27 | 2015-03-04 | 无为恒基商品混凝土有限公司 | Concrete with functions of crack resistance and infiltration resistance |
-
2015
- 2015-08-27 CN CN201510534170.2A patent/CN105152600A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007009408A1 (en) * | 2005-07-16 | 2007-01-25 | Rode Betontechnologie Gmbh | Mixture for producing self-compacting concrete |
| CN103527216A (en) * | 2013-09-25 | 2014-01-22 | 暨南大学 | High performance fiber concrete suitable for metro segment with large diameter and application of high performance fiber concrete |
| CN103755233A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Crack-resistant concrete |
| CN103819148A (en) * | 2014-02-26 | 2014-05-28 | 中天建设集团有限公司 | Steel slag concrete |
| CN104386959A (en) * | 2014-10-27 | 2015-03-04 | 无为恒基商品混凝土有限公司 | Concrete with functions of crack resistance and infiltration resistance |
Non-Patent Citations (3)
| Title |
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| 杨红霞: "《商品混凝土质量与成本控制技术》", 30 June 2014, 中国建材工业出版社 * |
| 田培等: "《混凝土外加剂手册》", 31 August 2009, 化学工业出版社 * |
| 钱玉明等: "《建筑工程预算培训教材》", 30 September 2000, 中国计划出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365525A (en) * | 2016-08-22 | 2017-02-01 | 桂林新艺制冷设备有限责任公司 | Novel anti-crack concrete |
| WO2023053116A1 (en) * | 2021-09-30 | 2023-04-06 | Anyway Solid Environmental Solutions Ltd. | Low carbon emission concrete for walkways and paths, binders and methods thereof |
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Application publication date: 20151216 |