CN114605119A - Anti-freezing and anti-cracking concrete - Google Patents
Anti-freezing and anti-cracking concrete Download PDFInfo
- Publication number
- CN114605119A CN114605119A CN202210287070.4A CN202210287070A CN114605119A CN 114605119 A CN114605119 A CN 114605119A CN 202210287070 A CN202210287070 A CN 202210287070A CN 114605119 A CN114605119 A CN 114605119A
- Authority
- CN
- China
- Prior art keywords
- parts
- concrete
- resistant
- crack
- frost
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005336 cracking Methods 0.000 title claims abstract description 9
- 238000007710 freezing Methods 0.000 title description 4
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 239000011398 Portland cement Substances 0.000 claims abstract description 5
- 239000004575 stone Substances 0.000 claims description 23
- 239000004576 sand Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000003756 stirring Methods 0.000 abstract description 6
- 239000003638 chemical reducing agent Substances 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 239000004568 cement Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
- C04B16/0616—Macromolecular compounds fibrous from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B16/0625—Polyalkenes, e.g. polyethylene
- C04B16/0633—Polypropylene
-
- 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
Abstract
The invention discloses antifreezing and anti-cracking concrete which comprises, by weight, 400 parts of ordinary portland cement, 1300 parts of coarse aggregate, 600 parts of fine aggregate, 240 parts of water, 15.5-20 parts of an antifreezing agent, 3-4 parts of a water reducing agent and 1.2-1.5 parts of anti-cracking fibers. Compared with the prior art, the invention has the advantages that: the concrete produced by the method has high-strength frost resistance and crack resistance, and is produced by mixing and stirring a plurality of coarse aggregates and a plurality of fine aggregates, so that the quality and the strength of the concrete are ensured, the production cost is greatly reduced, and the method is suitable for popularizing and using the method for producing the concrete.
Description
Technical Field
The invention relates to the technical field of concrete, in particular to frost-resistant and crack-resistant concrete.
Background
Concrete is a generic term for engineering composites where aggregates are cemented into a whole by cementitious materials. The concrete is cement concrete, also called common concrete, which is obtained by mixing cement as cementing material and sand and stone as aggregate with water (containing additive and admixture) in a certain proportion and stirring, and is widely used in civil engineering. These characteristics make it very widely used, not only in various civil engineering, that is shipbuilding, machinery industry, ocean development, geothermal engineering, etc., but also concrete is an important material.
Common concrete in the prior art has poor frost resistance and crack resistance in order to pursue lower cost due to the shortage of proportioning and additives, so that the use safety of the produced concrete is greatly reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing the frost-resistant and crack-resistant concrete which has lower cost and better frost-resistant and crack-resistant performances for military and even buildings aiming at the defects in the background technology.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the antifreezing and cracking resistant concrete consists of Portland cement 400 weight portions, coarse aggregate 1100 weight portions, fine aggregate 400 weight portions, water 240 weight portions, antifreezing agent 15.5-20 weight portions, water reducing agent 3-4 weight portions, and crack resisting fiber 1.2-1.5 weight portions.
As an improvement, the coarse aggregate comprises 1100 parts of crushed stone 1000-200 parts of pebbles 100-200 parts, and the production cost can be reduced by various coarse aggregates without reducing the performance.
As an improvement, the crushed stones and the pebbles need to be screened by a stone screening machine, and the particle size of the crushed stones and the pebbles is between 4.75mm and 5.75 mm.
As an improvement, the fine aggregate comprises 300-400 parts of river sand and 100-200 parts of mechanical sand, and the production cost can be reduced without reducing the performance by using various fine aggregates.
As an improvement, the crushed stones and pebbles need to be screened by a stone screening machine, and the particle size of the crushed stones and pebbles is below 4.75 mm.
As an improvement, fly ash and mineral powder are additionally added to the concrete according to the weight ratio.
As an improvement, the anti-crack fiber is a polypropylene fiber, and can further play a role in resisting cracks and seepage.
After adopting the structure, the invention has the following advantages: the concrete produced by the method has high-strength frost resistance and crack resistance, and is produced by mixing and stirring a plurality of coarse aggregates and a plurality of fine aggregates, so that the quality and the strength of the concrete are ensured, the production cost is greatly reduced, and the method is suitable for popularizing and using the method for producing the concrete.
Detailed Description
The present invention is described in further detail below.
The antifreezing and cracking resistant concrete consists of Portland cement 400 weight portions, coarse aggregate 1100 weight portions, fine aggregate 400 weight portions, water 240 weight portions, antifreezing agent 15.5-20 weight portions, water reducing agent 3-4 weight portions, and crack resisting fiber 1.2-1.5 weight portions.
The coarse aggregate comprises 1100 parts of crushed stone 1000-plus and 200 parts of pebbles 100-plus, the crushed stone and the pebbles need to be screened by a stone screening machine, the particle size of the crushed stone and the pebbles is between 4.75mm and 5.75mm, the fine aggregate comprises 400 parts of river sand-plus and 200 parts of mechanical sand-plus, the crushed stone and the pebbles need to be screened by the stone screening machine, the particle size of the crushed stone and the pebbles is below 4.75mm, fly ash and mineral powder are additionally added to the concrete according to the weight proportion, and the anti-crack fiber is polypropylene fiber.
When the method is specifically implemented, 350 parts of ordinary portland cement, 1050 parts of broken stone, 150 parts of pebble, 350 parts of river sand, 150 parts of mechanical sand, 250 parts of water, 18 parts of anti-freezing agent, 3.5 parts of water reducing agent and 1.4 parts of anti-cracking fiber are selected, cement and river sand are added into a part of water to be stirred, the mechanical sand and a part of water are added in the stirring process, the broken stone, the pebble and the rest of water are added after the addition of the mechanical sand and the part of water is finished, stirring treatment is carried out simultaneously, if the whole body shows too thin, fly ash and mineral powder are selectively added, and the anti-freezing agent, the water reducing agent and the anti-cracking fiber are sequentially added in the stirring process.
While the invention and its embodiments have been described above, this description is not intended to be limiting and the actual constructions are not so limited. In summary, those skilled in the art should, without departing from the spirit of the present invention, devise similar structural modes and embodiments without inventively designing them, and shall fall within the scope of the present invention.
Claims (7)
1. The frost-resistant and crack-resistant concrete is characterized in that: the anti-cracking mortar comprises, by weight, 400 parts of ordinary portland cement 310-.
2. The frost-resistant, crack-resistant concrete of claim 1, wherein: the coarse aggregate comprises 1000-1100 parts of gravel and 100-200 parts of pebbles.
3. The frost-resistant, crack-resistant concrete of claim 2, wherein: the crushed stones and pebbles need to be screened by a stone screening machine, and the particle sizes of the crushed stones and the pebbles are between 4.75mm and 5.75 mm.
4. The frost-resistant, crack-resistant concrete of claim 1, wherein: the fine aggregate comprises 300-400 parts of river sand and 100-200 parts of mechanical sand.
5. The frost-resistant, crack-resistant concrete of claim 4, wherein: the broken stones and the pebbles need to be screened by a stone screening machine, and the particle sizes of the broken stones and the pebbles are below 4.75 mm.
6. The frost-resistant, crack-resistant concrete of claim 1, wherein: fly ash and mineral powder are additionally added to the concrete according to the weight ratio.
7. The frost-resistant, crack-resistant concrete of claim 1, wherein: the anti-crack fiber is polypropylene fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210287070.4A CN114605119A (en) | 2022-03-22 | 2022-03-22 | Anti-freezing and anti-cracking concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210287070.4A CN114605119A (en) | 2022-03-22 | 2022-03-22 | Anti-freezing and anti-cracking concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114605119A true CN114605119A (en) | 2022-06-10 |
Family
ID=81865124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210287070.4A Pending CN114605119A (en) | 2022-03-22 | 2022-03-22 | Anti-freezing and anti-cracking concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114605119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849787A (en) * | 2022-12-26 | 2023-03-28 | 马鞍山国运混凝土有限公司 | Production process of premixed concrete |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011006276A (en) * | 2009-06-25 | 2011-01-13 | Shimizu Corp | Low shrinkage concrete |
| CN109456008A (en) * | 2018-12-27 | 2019-03-12 | 浙江大经住工科技有限公司 | A kind of freeze proof anti-crack concrete and preparation method thereof |
| CN112551993A (en) * | 2021-02-06 | 2021-03-26 | 济南大学 | Anti-freezing concrete |
| CN112897943A (en) * | 2021-02-05 | 2021-06-04 | 淮安盖特建材科技有限公司 | High-strength anti-freezing anti-cracking concrete |
| CN113292289A (en) * | 2021-05-22 | 2021-08-24 | 海阳市利安建材有限公司 | Anti-freezing concrete and preparation method thereof |
| CN113480241A (en) * | 2021-06-29 | 2021-10-08 | 安徽华畅新型建材有限责任公司 | Anti-freezing and anti-cracking concrete and preparation method thereof |
-
2022
- 2022-03-22 CN CN202210287070.4A patent/CN114605119A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011006276A (en) * | 2009-06-25 | 2011-01-13 | Shimizu Corp | Low shrinkage concrete |
| CN109456008A (en) * | 2018-12-27 | 2019-03-12 | 浙江大经住工科技有限公司 | A kind of freeze proof anti-crack concrete and preparation method thereof |
| CN112897943A (en) * | 2021-02-05 | 2021-06-04 | 淮安盖特建材科技有限公司 | High-strength anti-freezing anti-cracking concrete |
| CN112551993A (en) * | 2021-02-06 | 2021-03-26 | 济南大学 | Anti-freezing concrete |
| CN113292289A (en) * | 2021-05-22 | 2021-08-24 | 海阳市利安建材有限公司 | Anti-freezing concrete and preparation method thereof |
| CN113480241A (en) * | 2021-06-29 | 2021-10-08 | 安徽华畅新型建材有限责任公司 | Anti-freezing and anti-cracking concrete and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 彭红等: "《建筑材料》", 31 January 2018, 重庆大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115849787A (en) * | 2022-12-26 | 2023-03-28 | 马鞍山国运混凝土有限公司 | Production process of premixed concrete |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220610 |