CN105036631A - Concrete high in cracking resistance - Google Patents
Concrete high in cracking resistance Download PDFInfo
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- CN105036631A CN105036631A CN201510542776.0A CN201510542776A CN105036631A CN 105036631 A CN105036631 A CN 105036631A CN 201510542776 A CN201510542776 A CN 201510542776A CN 105036631 A CN105036631 A CN 105036631A
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Abstract
The invention discloses concrete high in cracking resistance and belongs to the technical field of building materials. The concrete comprises, by weight, 400-600 parts of cement, 300-500 parts of gravel, 300-500 parts of river sand, 4-16 parts of coal ash, 4-10 parts of silicon dioxide powder, 4-10 parts of steel fiber, 4-16 parts of polypropylene fiber and 300-400 parts of water. The concrete high in cracking resistance is good in cracking resistance, fracture resistance and tensile strength; furthermore, raw materials are abundant, the price is low, the production technology is simple, cost is low, and the concrete is suitable for scale production.
Description
Technical field
The present invention relates to a kind of concrete of high cracking resistance, 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 high cracking resistance is provided.The concrete anticracking of high cracking resistance of the present invention, anti-folding, tensile property are good.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of concrete of high cracking resistance, comprises the raw material of following parts by weight: cement 400 ~ 600 parts, rubble 300 ~ 500 parts, 300 ~ 500 parts, river sand, 4 ~ 16 parts, flyash, silicon dioxide powder 4 ~ 10 parts, steel fiber 4 ~ 10 parts, polypropylene fibre 4 ~ 16 parts and 300 ~ 400 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: cement 500 parts, rubble 400 parts, 400 parts, river sand, 10 parts, flyash, silicon dioxide powder 7 parts, steel fiber 7 parts, polypropylene fibre 10 parts and 350 parts, water.
Further, the index number of described cement is 32.5 or 42.5.
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 particle diameter of described flyash is 30 ~ 50 μm.
Further, described silicon dioxide powder is nano-silica powder.
Further, the length of described steel fiber is 1 ~ 40mm.
Further, described polypropylene fibre is Monofilament polypropylene.
The invention has the beneficial effects as follows:
(1) concrete anticracking of high cracking resistance of the present invention, anti-folding, tensile property are good.
(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 high cracking resistance, comprise the raw material of following parts by weight: cement 400 parts, rubble 500 parts, 300 parts, river sand, 16 parts, flyash, silicon dioxide powder 4 parts, steel fiber 10 parts, polypropylene fibre 4 parts and 400 parts, water, wherein, the index number of described cement is 32.5 or 42.5, 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 particle diameter of described flyash is 30 ~ 50 μm, described silicon dioxide powder is nano-silica powder, the length of described steel fiber is 1 ~ 40mm, described polypropylene fibre is Monofilament polypropylene.
Embodiment 2:
A kind of concrete of high cracking resistance, comprise the raw material of following parts by weight: cement 500 parts, rubble 400 parts, 400 parts, river sand, 10 parts, flyash, silicon dioxide powder 7 parts, steel fiber 7 parts, polypropylene fibre 10 parts and 350 parts, water, wherein, the index number of described cement is 32.5 or 42.5, 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 particle diameter of described flyash is 30 ~ 50 μm, described silicon dioxide powder is nano-silica powder, the length of described steel fiber is 1 ~ 40mm, described polypropylene fibre is Monofilament polypropylene.
Embodiment 3:
A kind of concrete of high cracking resistance, comprise the raw material of following parts by weight: cement 600 parts, rubble 300 parts, 500 parts, river sand, 4 parts, flyash, silicon dioxide powder 10 parts, steel fiber 4 parts, polypropylene fibre 16 parts and 300 parts, water, wherein, the index number of described cement is 32.5 or 42.5, 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 particle diameter of described flyash is 30 ~ 50 μm, described silicon dioxide powder is nano-silica powder, the length of described steel fiber is 1 ~ 40mm, 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 (9)
1. the concrete of a high cracking resistance, it is characterized in that, comprise the raw material of following parts by weight: cement 400 ~ 600 parts, rubble 300 ~ 500 parts, 300 ~ 500 parts, river sand, 4 ~ 16 parts, flyash, silicon dioxide powder 4 ~ 10 parts, steel fiber 4 ~ 10 parts, polypropylene fibre 4 ~ 16 parts and 300 ~ 400 parts, water.
2. the concrete of a kind of high cracking resistance according to claim 1, it is characterized in that, comprise the raw material of following parts by weight: cement 500 parts, rubble 400 parts, 400 parts, river sand, 10 parts, flyash, silicon dioxide powder 7 parts, steel fiber 7 parts, polypropylene fibre 10 parts and 350 parts, water.
3. the concrete of a kind of high cracking resistance according to claim 1 and 2, is characterized in that, the index number of described cement is 32.5 or 42.5.
4. the concrete of a kind of high cracking resistance 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 high cracking resistance 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 high cracking resistance according to claim 1 and 2, is characterized in that, the particle diameter of described flyash is 30 ~ 50 μm.
7. the concrete of a kind of high cracking resistance according to claim 1 and 2, is characterized in that, described silicon dioxide powder is nano-silica powder.
8. the concrete of a kind of high cracking resistance according to claim 1 and 2, is characterized in that, the length of described steel fiber is 1 ~ 40mm.
9. the concrete of a kind of high cracking resistance 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 |
|---|---|---|---|
| CN201510542776.0A CN105036631A (en) | 2015-08-31 | 2015-08-31 | Concrete high in cracking resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510542776.0A CN105036631A (en) | 2015-08-31 | 2015-08-31 | Concrete high in cracking resistance |
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| Publication Number | Publication Date |
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| CN105036631A true CN105036631A (en) | 2015-11-11 |
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| CN201510542776.0A Pending CN105036631A (en) | 2015-08-31 | 2015-08-31 | Concrete high in cracking resistance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859213A (en) * | 2016-03-30 | 2016-08-17 | 四川华西绿舍建材有限公司 | Steel fiber concrete with high fracture resistance and preparation method thereof |
| CN106966641A (en) * | 2017-02-14 | 2017-07-21 | 陕西理工学院 | High-strength tenacity concrete formulation |
| CN107352879A (en) * | 2017-08-24 | 2017-11-17 | 浙江远辰三联混凝土沙浆有限公司 | A kind of resistance to compression steel fiber reinforced concrete |
| CN114315279A (en) * | 2022-01-12 | 2022-04-12 | 新疆生产建设兵团建筑工程科学技术研究院有限责任公司 | Anti-crack concrete and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103539403A (en) * | 2013-09-28 | 2014-01-29 | 张家港市山牧新材料技术开发有限公司 | High-strength concrete composite material and preparation method thereof |
| CN104058677A (en) * | 2013-03-20 | 2014-09-24 | 宏润建设集团股份有限公司 | Steel fiber composite concrete member and preparation process thereof |
| 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
- 2015-08-31 CN CN201510542776.0A patent/CN105036631A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058677A (en) * | 2013-03-20 | 2014-09-24 | 宏润建设集团股份有限公司 | Steel fiber composite concrete member and preparation process thereof |
| 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 |
| CN103539403A (en) * | 2013-09-28 | 2014-01-29 | 张家港市山牧新材料技术开发有限公司 | High-strength concrete composite material and preparation method thereof |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859213A (en) * | 2016-03-30 | 2016-08-17 | 四川华西绿舍建材有限公司 | Steel fiber concrete with high fracture resistance and preparation method thereof |
| CN106966641A (en) * | 2017-02-14 | 2017-07-21 | 陕西理工学院 | High-strength tenacity concrete formulation |
| CN107352879A (en) * | 2017-08-24 | 2017-11-17 | 浙江远辰三联混凝土沙浆有限公司 | A kind of resistance to compression steel fiber reinforced concrete |
| CN114315279A (en) * | 2022-01-12 | 2022-04-12 | 新疆生产建设兵团建筑工程科学技术研究院有限责任公司 | Anti-crack concrete and preparation method thereof |
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Application publication date: 20151111 |