CN105985079A - Method for preparing waste and old rubber particle concrete - Google Patents
Method for preparing waste and old rubber particle concrete Download PDFInfo
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- CN105985079A CN105985079A CN201510068074.3A CN201510068074A CN105985079A CN 105985079 A CN105985079 A CN 105985079A CN 201510068074 A CN201510068074 A CN 201510068074A CN 105985079 A CN105985079 A CN 105985079A
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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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Abstract
The invention relates to a building concrete preparation method and especially relates to a method for preparing waste and old rubber particle concrete. The method comprises breaking waste and old rubber tyres to obtain rubber particles of 40-60 meshes, weighing cement, water, sand, broken stones and a water reducer according to a mass ratio of 1: 0.35: 1.25: 2.78: 0.01, based on the cement mass, adding 2-4% of a styrene-butadiene latex solution into a glass container, based on the sand volume, adding 10-15% of rubber particles into the glass container, adding water into the glass container, carrying out uniform stirring, immersing the rubber particles in the styrene-butadiene latex solution for 6-8h, and adding a water reducer into the styrene-butadiene latex solution with the rubber particles and water. Through improvement of a bonding interface between the rubber particles and a cement-based material, waste and old rubber particle concrete grading is optimized, compactness of the waste and old rubber particle concrete is improved and waste and old rubber particle concrete strength and durability are improved.
Description
Technical field
The present invention relates to the preparation method of a kind of building concrete, particularly relate to a kind of method preparing waste and old rubber particle concrete.
Background technology
Waste old is a kind of " black pollution ", and along with increasing of automobile usage amount, the quantity of junked tire sharply increases.Upper the 80's of 20th century start, expert and scholar are to how recycling waste old has carried out substantial amounts of research work both at home and abroad, wherein utilize waste and old rubber particle to prepare rubber concrete and be acknowledged as one of most effective way, it not only has the process advantages such as technique is simple, cost is low, consumption is big, and the features such as light weight that waste old had, toughness height, good, the excellent in durability of damping capacity can be given full play to, while consuming waste tire rubber, also provide new material for engineering field.
The problem that toughness of concrete is not enough can be effectively improved, additionally, suitable rubber volume can improve the impermeability of concrete, beneficially Concrete Structure durability by mixing outside waste old to concrete.But rubber surface porous is coarse, admixture rubber after concrete density decline thus cause intensity to reduce.
Existing rubber concrete preparation method has the disadvantage that:
1. rubber is without pretreatment
Rubber surface is coarse and with a large amount of holes, concrete density can be caused to decline without pretreatment directly outer mixing and produce bigger loss of strength, and rubber is poor with cement-based material interface cohesion effect.
2. mix outside after soaking in the solution such as clear water, sodium hydroxide, sodium chloride, carbon tetrachloride, or mix to concrete outside immersion post-drying
Though rubber is mixed or is soaked to mix outside post-drying outward after soaking with clear water, sodium hydroxide, sodium chloride, carbon tetrachloride solution can improve rubber surface, but rubber is a kind of macromolecule organic, clear water, sodium hydroxide, sodium chloride are inorganic matter, carbon tetrachloride is only used as organic solvent, the roughness of rubber surface can only be improved, the adhesive property of rubber can not be produced substantial impact.
3. do not take into account the grain composition of rubber concrete
Do not take into account the grating situation of inside concrete material, mix outward rubber and the level of concrete is furnished with certain impact, therefore can not play the performance of rubber concrete completely, even can produce some negative effects.
Summary of the invention
It is an object of the invention to provide a kind of method preparing waste and old rubber particle concrete; the method is by improving the combination interface of rubber grain and cement-based material; optimize waste and old rubber particle concrete grating; improve the degree of compaction of waste and old rubber particle concrete, strengthen intensity and the durability of waste and old rubber particle concrete.
It is an object of the invention to be achieved through the following technical solutions:
A kind of method preparing waste and old rubber particle concrete, including procedure below:
1. make, by broken for waste and used rubber tyre, the rubber grain that particle diameter is 40～60 mesh.
2. component and the proportioning of concrete is: cement: water: sand: rubble: water reducer=1:0.35:1.25:2.78:0.01, weighs the quality of each component by said ratio；The specification of above-mentioned each component is: cement is P O42.5 portland cement；Sand is medium sand；The maximum particle of crushed stone is less than 40mm；Water reducer is naphthalene series high-efficiency water-reducing agent.
3. add the styrene-butadiene latex solution of 2%～4% of cement quality mark and the rubber grain of the 10% of sand body fraction～15% in glass container, add water and stir, rubber grain is soaked 6～8 hours in styrene-butadiene latex solution；The quality of cement, water and sand described in this step is the quality weighed up by concrete proportioning by step 1；The concentration of the styrene-butadiene latex solution described in this step is 50%.
4. the styrene-butadiene latex solution after soaking rubber grain and adding water adds water reducer, use Glass rod or mechanical agitator quickly to stir 30～60 seconds, stir and make mixed solution；The quality of the water reducer described in this step is the quality weighed up by concrete proportioning by step 1.
5. the silicon ash of cement quality 5%～8% and cement mixing are formed uniformly composite gelled material, then 40～60 seconds formation cement mortars of Binder Materials stirring that mixed solution rubber grain and styrene-butadiene latex solution, water reducer and water formed is compounded to form with cement and silicon ash.The particle diameter of described silicon ash is 900～1200 mesh, and the cement quality described in this step is the quality weighed up by concrete proportioning by step 1.
6. put into sand and rubble and stir 2～3 minutes formation waste and old rubber particle concrete to blender；Sand and the quality of rubble described in this step are the quality weighed up by concrete proportioning by step 1.
Use styrene-butadiene latex, the degree of roughness of rubber particle surface can be improved, make rubber grain and concrete material set up chemical bond, be effectively improved the adhesion strength of rubber grain and cement matrix, improve combination interface.Silicon ash is filled with cementitious composite, optimizes the grain composition of waste and old rubber particle inside concrete material, reduce waste and old rubber particle inside concrete space thus improve degree of compaction, be conducive to strengthening intensity and the durability of waste and old rubber particle concrete.
Beneficial effect of the present invention
The recycling of waste old can not only solve its problem of environmental pollution brought, and can effectively alleviate the deficiency of China's Rubber Yield simultaneously, also implement the strategy of sustainable development of China.General Purpose Rubber concrete improves the adverse effects such as fragility existing for plain concrete is big, easy to crack, but it is poor that rubber is combined effect with cement-based material, region residing for rubber grain is more weak and there is a large amount of hole, these holes gradually carry out into tiny crack when at load-bearing, thus cause the reduction of concrete strength.By the present invention in that and be filled with waste and old rubber particle inside concrete hole with silicon ash, optimize waste and old rubber particle concrete grating, use styrene-butadiene latex can improve the combination interface of rubber grain and cement-based material, improve rubber grain concrete strength and durability.
Detailed description of the invention
Embodiment 1:
A kind of prepare waste and old rubber particle concrete method be:
1. make, by broken for waste old block, the rubber grain that particle diameter is 40 mesh.
2. component and the proportioning of concrete is: cement: water: sand: rubble: water reducer=1:0.35:1.25:2.78:0.01, the quality of each component is weighed: cement 70 kilograms, 24.5 kilograms of water, sand 87.5 kilograms by said ratio, rubble 194.6 kilograms, water reducer 0.7 kilogram.The specification of above-mentioned each component is: cement is P O42.5 portland cement；Sand is medium sand；The maximum particle of crushed stone is 40mm；Water reducer is naphthalene series high-efficiency water-reducing agent.
3. add 1.4 kilograms of styrene-butadiene latex solution and 4.63 kilograms of rubber grains in glass container, add 24.5 kg water and stir, rubber grain is soaked 6 hours in styrene-butadiene latex solution；The concentration of the styrene-butadiene latex solution described in this step is 50%.
4. the styrene-butadiene latex solution after soaking rubber grain and adding water adds 0.7 kilogram of water reducer, use Glass rod quickly to stir 30 seconds, stir and make mixed solution.
5. using concreting machinery blender to be stirred with 70 kilograms of cement by 3.5 kilograms of silicon ashes, the Binder Materials that the mixed solution that input rubber grain and styrene-butadiene latex solution, water reducer and water are formed and cement and silicon ash are compounded to form stirs 40 seconds and forms cement mortar；Described in this step, silicon ash component specification is 1000 mesh.
6. put into 87.5 kilograms of sands and 194.6 kilograms of rubbles stir 2 minutes formation rubber grain concrete to blender.
Through test, 28 days technical specifications of the waste and old rubber particle concrete sample as made by the present embodiment are as follows:
Comprcssive strength: 58.84Mpa；
Tensile splitting strength: 4.85Mpa；
Rupture strength: 5.72Mpa.
Embodiment 2:
1. make, by broken for waste old block, the rubber grain that particle diameter is 50 mesh.
2.
The component of concrete and proportioning be: cement: water: sand: rubble: water reducer=1:0.35:1.25:2.78:0.01, the quality of each component is weighed: cement 70 kilograms, 24.5 kilograms of water, sand 87.5 kilograms by said ratio, rubble 194.6 kilograms, water reducer 0.7 kilogram.The specification of above-mentioned each component is: cement is P O42.5 portland cement；Sand is medium sand；The maximum particle of crushed stone is 40mm；Water reducer is naphthalene series high-efficiency water-reducing agent.
3. interpolation styrene-butadiene latex solution 2.1 kilograms is with in rubber grain 5.56 kilograms to glass container, adds 24.5 kg water and stirs, is soaked 7 hours by rubber grain in styrene-butadiene latex solution；The concentration of the styrene-butadiene latex solution described in this step is 50%.
4. the styrene-butadiene latex solution after soaking rubber grain and adding water adds 0.7 kilogram of water reducer, use Glass rod quickly to stir 50 seconds, stir and make mixed solution.
5. using concreting machinery blender to be stirred with 70 kilograms of cement by 4.2 kilograms of silicon ashes, the Binder Materials that the mixed solution that input rubber grain and styrene-butadiene latex solution, water reducer and water are formed and cement and silicon ash are compounded to form stirs 50 seconds and forms cement mortar；Described in this step, silicon ash component specification is 1100 mesh.
6. put into 87.5 kilograms of sands and 194.6 kilograms of rubbles stir 2.5 minutes formation rubber grain concrete to blender.
28 days carbonation depths of waste and old rubber particle concrete sample as made by the present invention are 3.2mm.
Embodiment 3:
1. make, by broken for waste old block, the rubber grain that particle diameter is 60 mesh.
2. component and the proportioning of concrete is: cement: water: sand: rubble: water reducer=1:0.35:1.25:2.78:0.01, the quality of each component is weighed: cement 70 kilograms, 24.5 kilograms of water, sand 87.5 kilograms by said ratio, rubble 194.6 kilograms, water reducer 0.7 kilogram.The specification of above-mentioned each component is: cement is P O42.5 portland cement；Sand is medium sand；The maximum particle of crushed stone is 40mm；Water reducer is naphthalene series high-efficiency water-reducing agent.
3. interpolation styrene-butadiene latex solution 2.8 kilograms is with in rubber grain 6.95 kilograms to glass container, adds 24.5 kg water and stirs, is soaked 8 hours by rubber grain in styrene-butadiene latex solution；The concentration of the styrene-butadiene latex solution described in this step is 50%.
4. the styrene-butadiene latex solution after soaking rubber grain and adding water adds 0.7 kilogram of water reducer, use Glass rod quickly to stir 60 seconds, stir and make mixed solution.
5. using concreting machinery blender by uniform with cement mixing for 5.6 kilograms of silicon ashes, the Binder Materials that mixed solution and the cement and silicon ash that input rubber grain and styrene-butadiene latex solution, water reducer and water are formed is compounded to form stirs 60 seconds and forms cement mortar；Described in this step, silicon ash component specification is 1200 mesh.
6. put into 87.5 kilograms of sands and 194.6 kilograms of rubbles stir 3 minutes formation rubber grain concrete to blender.
Waste and old rubber particle concrete sample freezing-thawing cycles as made by the present invention reaches 300 times.
Claims (3)
1. the method preparing waste and old rubber particle concrete, it is characterised in that described method includes procedure below:
1) make, by broken for waste and used rubber tyre, the rubber grain that particle diameter is 40～60 mesh；
2) component and the proportioning of concrete is: cement: water: sand: rubble: water reducer=1:0.35:1.25:2.78:0.01, weighs the quality of each component by said ratio；The specification of above-mentioned each component is: cement is P O42.5 portland cement；Sand is medium sand；The maximum particle of crushed stone is less than 40mm；
3) add the styrene-butadiene latex solution of 2%～4% of cement quality mark and the rubber grain of the 10% of sand body fraction～15% in glass container, add water and stir, rubber grain is soaked 6～8 hours in styrene-butadiene latex solution；The quality of cement, water and sand described in this step is the quality weighed up by concrete proportioning by step 1；
4) the styrene-butadiene latex solution after soaking rubber grain and adding water adds water reducer, use Glass rod or mechanical agitator quickly to stir 30～60 seconds, stir and make mixed solution；The quality of the water reducer described in this step is the quality weighed up by concrete proportioning by step 1；
5) the silicon ash of cement quality 5%～8% and cement mixing are formed uniformly composite gelled material, then 40～60 seconds formation cement mortars of Binder Materials stirring that mixed solution rubber grain and styrene-butadiene latex solution, water reducer and water formed is compounded to form with cement and silicon ash；The particle diameter of described silicon ash is 900～1200 mesh, and the cement quality described in this step is the quality weighed up by concrete proportioning by step 1；
6) put into sand and rubble and stir 2～3 minutes formation waste and old rubber particle concrete to blender；Sand and the quality of rubble described in this step are the quality weighed up by concrete proportioning by step 1.
A kind of method preparing waste and old rubber particle concrete the most according to claim 1, it is characterised in that described water reducer is naphthalene series high-efficiency water-reducing agent.
A kind of method preparing waste and old rubber particle concrete the most according to claim 1, it is characterised in that the concentration of described styrene-butadiene latex solution is 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510068074.3A CN105985079A (en) | 2015-02-09 | 2015-02-09 | Method for preparing waste and old rubber particle concrete |
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| CN201510068074.3A CN105985079A (en) | 2015-02-09 | 2015-02-09 | Method for preparing waste and old rubber particle concrete |
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| CN105985079A true CN105985079A (en) | 2016-10-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629101A (en) * | 2018-04-26 | 2018-10-09 | 西安建筑科技大学 | A kind of rubber powder aggregate concrete optimum design method improving frost-proof test |
| RU2708776C1 (en) * | 2019-03-18 | 2019-12-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Sound-absorbing concrete |
| CN111592299A (en) * | 2020-05-15 | 2020-08-28 | 中建商品混凝土有限公司 | High-strength low-elasticity hydraulic anti-abrasion concrete and preparation method thereof |
| CN112456922A (en) * | 2020-12-21 | 2021-03-09 | 中国农业大学 | Integral hydrophobic self-compacting rubber concrete and preparation method thereof |
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| WO2014094183A1 (en) * | 2012-12-21 | 2014-06-26 | Empa Eidgenössische Materialprüfungs- Und Forschungsanstalt | Fire resistant concrete |
| US20150135997A1 (en) * | 2012-05-22 | 2015-05-21 | The Curators Of The University Of Missouri | Internal curing composition for concrete mixtures |
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| CN101255025A (en) * | 2008-04-07 | 2008-09-03 | 同济大学 | Road cement concrete rubber particle surface modifier |
| US20150135997A1 (en) * | 2012-05-22 | 2015-05-21 | The Curators Of The University Of Missouri | Internal curing composition for concrete mixtures |
| WO2014094183A1 (en) * | 2012-12-21 | 2014-06-26 | Empa Eidgenössische Materialprüfungs- Und Forschungsanstalt | Fire resistant concrete |
| CN104844103A (en) * | 2015-04-01 | 2015-08-19 | 山东大学 | Novel flexible composite shotcrete layer support material |
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| WEI LI ET AL: "Experimental Study on Proportion of Tensile Strength and Compressive Strength of the Crumb Rubber Concrete Modified by Latex", 《ADVANCED MATERIALS RESEARCH》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629101A (en) * | 2018-04-26 | 2018-10-09 | 西安建筑科技大学 | A kind of rubber powder aggregate concrete optimum design method improving frost-proof test |
| RU2708776C1 (en) * | 2019-03-18 | 2019-12-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Sound-absorbing concrete |
| CN111592299A (en) * | 2020-05-15 | 2020-08-28 | 中建商品混凝土有限公司 | High-strength low-elasticity hydraulic anti-abrasion concrete and preparation method thereof |
| CN112456922A (en) * | 2020-12-21 | 2021-03-09 | 中国农业大学 | Integral hydrophobic self-compacting rubber concrete and preparation method thereof |
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