CN104098296A - Method for enhancing strength of rubber aggregate concrete - Google Patents
Method for enhancing strength of rubber aggregate concrete Download PDFInfo
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- CN104098296A CN104098296A CN201310126887.4A CN201310126887A CN104098296A CN 104098296 A CN104098296 A CN 104098296A CN 201310126887 A CN201310126887 A CN 201310126887A CN 104098296 A CN104098296 A CN 104098296A
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- rubber
- aggregate
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- cement
- sand
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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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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a method for enhancing strength of rubber aggregate concrete. The method is characterized by replacing a fine aggregate accounting for 3%-10% by weight of the concrete by a rubber aggregate in 20-60 meshes accounting for 3%-10% by weight of cement. The method includes following steps: blending water with the cement to form cement paste; coating the rubber aggregate with the cement paste; and mixing the cement paste coated with the rubber aggregate, the fine aggregate (sand) and a coarse aggregate (gravel) together with stirring to form concrete. Compared with common rubber concrete which is prepared by directly blending a rubber aggregate, cement, a fine aggregate (sand), a coarse aggregate (gravel) and water, the rubber aggregate concrete in the invention is increased by 20%-40% in compressive strength so that durability of the rubber aggregate concrete is greatly improved.
Description
Technical field
The invention belongs to concrete technology field, especially a kind of method that improves Rubber Concrete intensity.
Background technology
Rubber Concrete distortion is large, and the most significant feature is to reduce concrete fragility, increases toughness and ductility, overcomes the intrinsic defects such as normal concrete fragility is large, splitting resistance is poor.Meanwhile, admixture rubber aggregate in concrete, can solve again the effectively problem of recycling of a large amount of waste rubbers.Therefore, Rubber Concrete has broad application prospects.But, rubber aggregate has formed a kind of new matrix material being jointly made up of stiffener and elastomerics after joining concrete, material internal has not only formed many new interfaces, and the physical mechanism of its internal microstructure and destruction also can change, particularly between rubber aggregate and aggregate interface, there is natural a large amount of thin, microdefect and hole, cause the ultimate compression strength of Rubber Concrete to reduce a lot.And rubber aggregate volume is large, the natural defect at rubber aggregate and aggregate interface increases, and concrete ultimate compression strength reduces more obvious, has seriously restricted the promotion and application of rubber concrete in engineering.For improving the ultimate compression strength of Rubber Concrete, people at present the most frequently used method are to adopt NaOH saturated solution to soak rubber aggregate, utilize PVA (polyvinyl alcohol) and silane coupling agent to rubber aggregate modification, to improve concrete crushing strength.But these are several still can not effectively solve rubber aggregate to rubber aggregate surface-treated method and be combined problem with aggregate interface.Therefore, reducing the natural defect existing between rubber aggregate and aggregate interface, improve the combination degree between the two, is to solve the basic place that rubber aggregate ultimate compression strength reduces.
Summary of the invention
The object of this invention is to provide a kind of method that improves Rubber Concrete intensity.Main technological route of the present invention is: have natural a large amount of thin, microdefect and hole based on rubber aggregate and aggregate thermal properties, adopt that grout is rubber-coated gathers materials, rubber aggregate is by the grout " bridging " of surface adhesion, be combined with aggregate interface, the defect that reduces or avoided rubber aggregate to form in the time being directly combined in aggregate interface, realizes the raising of Rubber Concrete ultimate compression strength.Rubber aggregate and aggregate interface are by grout " bridging ", and concrete interface zone of transition degree of compactness increases, and inside concrete defect reduces, and has improved concrete ultimate compression strength.Based on above-mentioned analysis, the object of the present invention is achieved like this: rubber aggregate is light, and its density is the 20%-30% of fine aggregate (sand).Therefore, the rubber aggregate of same volume and fine aggregate (sand), the quality of rubber aggregate is the 20%-30% of fine aggregate (sand).Press the 20 order ~ 60 order rubber aggregates of the 3%-10% of cement weight per-cent, replace the 10.8%-36.3% of fine aggregate (sand) weight percent in concrete mix, volume of concrete is constant.First water mix cement forms grout, then admixture rubber aggregate in grout, mix and blend; Until grout is rubber-coated gather materials evenly after, the rubber-coated grout gathering materials is mixed together to concrete with fine aggregate (sand), coarse aggregate (rubble) etc. again.
The present invention compares with the General Purpose Rubber concrete that the mix of directly rubber aggregate, cement, fine aggregate (sand), coarse aggregate (rubble) and water being put together forms, concrete crushing strength improves 20%-40%, basic identical with the concrete crushing strength of admixture rubber aggregate not.Use the technology of the present invention, the ultimate compression strength of rubber concrete significantly improves, and significantly improves the weather resistance of rubber concrete.
Embodiment
The present invention presses the 20 order ~ 60 order rubber aggregates of the 3%-10% of cement weight per-cent, replaces the 10.8%-36.3% of the fine aggregate weight percent in concrete mix; First water mix cement forms grout, then gathers materials with grout is rubber-coated; The rubber-coated grout gathering materials and fine aggregate (sand), coarse aggregate (rubble) etc. are mixed together to concrete.
Using method of the present invention is as follows: the 3.0%-10.0%(that rubber aggregate volume is cement consumption measures by quality ratio), the 10.8%-36.3%(that replaces fine aggregate (sand) measures by quality ratio).In use, the mass percent of cement, rubber aggregate, sand and rubble, according to the concrete mix requirement after calculating, first with evenly rubber-coated gathering materials of grout, then adds fine aggregate (sand), coarse aggregate (rubble) in stirrer, in stirrer, stir, mix.
Claims (1)
1. a method that improves Rubber Concrete intensity, is characterized in that: by the 20 order～60 order rubber aggregates of the 3%-10% of cement weight per-cent, replace the 10.8%-36.3% that presses fine aggregate weight percent in concrete mix; First water mix cement forms grout, then gathers materials with grout is rubber-coated; The rubber-coated grout gathering materials and fine aggregate (sand), coarse aggregate (rubble) etc. are mixed together to concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310126887.4A CN104098296A (en) | 2013-04-13 | 2013-04-13 | Method for enhancing strength of rubber aggregate concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310126887.4A CN104098296A (en) | 2013-04-13 | 2013-04-13 | Method for enhancing strength of rubber aggregate concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104098296A true CN104098296A (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310126887.4A Pending CN104098296A (en) | 2013-04-13 | 2013-04-13 | Method for enhancing strength of rubber aggregate concrete |
Country Status (1)
| Country | Link |
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| CN (1) | CN104098296A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311495A (en) * | 2017-07-12 | 2017-11-03 | 湖北工业大学 | Rubber grain weightening finish method and rubber concrete preparation method |
| CN109650757A (en) * | 2019-02-01 | 2019-04-19 | 刘海涛 | Elastic sand |
| CN109721267A (en) * | 2019-01-24 | 2019-05-07 | 天津大学 | A kind of rubber aggregate cement-based material of carbon nanotube enhancing |
| CN115947577A (en) * | 2023-02-14 | 2023-04-11 | 南通市建设混凝土有限公司 | Self-compacting anti-freezing concrete and preparation process thereof |
| CN117142823A (en) * | 2023-08-30 | 2023-12-01 | 西南科技大学 | 3D printed concrete dismantling-free template and preparation method thereof |
| CN117415937A (en) * | 2023-11-28 | 2024-01-19 | 深圳大学 | Preparation method of compression casting rubber fine aggregate concrete |
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| JP2002274903A (en) * | 2001-01-15 | 2002-09-25 | Toray Ind Inc | Reinforcing fiber for plastering material, plastering material and method |
| CN100999398A (en) * | 2006-01-09 | 2007-07-18 | 同济大学 | Rubber concrete for reducing vibration and lowering noise |
| CN102557539A (en) * | 2011-12-27 | 2012-07-11 | 天津市宝坻区兴海盛橡胶加工厂 | High-performance rubber concrete |
| CN102627423A (en) * | 2012-05-03 | 2012-08-08 | 河南理工大学 | Method for improving flexural and compressive strength of rubber concrete |
-
2013
- 2013-04-13 CN CN201310126887.4A patent/CN104098296A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002274903A (en) * | 2001-01-15 | 2002-09-25 | Toray Ind Inc | Reinforcing fiber for plastering material, plastering material and method |
| CN100999398A (en) * | 2006-01-09 | 2007-07-18 | 同济大学 | Rubber concrete for reducing vibration and lowering noise |
| CN102557539A (en) * | 2011-12-27 | 2012-07-11 | 天津市宝坻区兴海盛橡胶加工厂 | High-performance rubber concrete |
| CN102627423A (en) * | 2012-05-03 | 2012-08-08 | 河南理工大学 | Method for improving flexural and compressive strength of rubber concrete |
Non-Patent Citations (2)
| Title |
|---|
| 汪海东等: "增强橡胶混凝土界面粘结强度的措施", 《华北水利水电学院学报》 * |
| 袁群等: "橡胶混凝土的抗碳化性能试验研究", 《混凝土》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311495A (en) * | 2017-07-12 | 2017-11-03 | 湖北工业大学 | Rubber grain weightening finish method and rubber concrete preparation method |
| CN107311495B (en) * | 2017-07-12 | 2019-10-11 | 湖北工业大学 | Rubber grain weightening finish method and rubber concrete preparation method |
| CN109721267A (en) * | 2019-01-24 | 2019-05-07 | 天津大学 | A kind of rubber aggregate cement-based material of carbon nanotube enhancing |
| CN109650757A (en) * | 2019-02-01 | 2019-04-19 | 刘海涛 | Elastic sand |
| CN109650757B (en) * | 2019-02-01 | 2021-11-30 | 刘海涛 | Elastic sand |
| CN115947577A (en) * | 2023-02-14 | 2023-04-11 | 南通市建设混凝土有限公司 | Self-compacting anti-freezing concrete and preparation process thereof |
| CN115947577B (en) * | 2023-02-14 | 2023-11-14 | 南通市建设混凝土有限公司 | Self-compacting anti-freezing concrete and preparation process thereof |
| CN117142823A (en) * | 2023-08-30 | 2023-12-01 | 西南科技大学 | 3D printed concrete dismantling-free template and preparation method thereof |
| CN117415937A (en) * | 2023-11-28 | 2024-01-19 | 深圳大学 | Preparation method of compression casting rubber fine aggregate concrete |
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Application publication date: 20141015 |