CN103641403A - Resource-saving recycled cement concrete - Google Patents
Resource-saving recycled cement concrete Download PDFInfo
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- CN103641403A CN103641403A CN201310658136.7A CN201310658136A CN103641403A CN 103641403 A CN103641403 A CN 103641403A CN 201310658136 A CN201310658136 A CN 201310658136A CN 103641403 A CN103641403 A CN 103641403A
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Abstract
The invention relates to resource-saving recycled cement concrete which is composed of the following components in percentage by mass: 6-10% of cement, 28-35% of washed sand, 25-30% of pebbles, 18-22% of regenerated gravels, 7-8% of waste tubular pile pulp, 5-6% of water, and 0.2-0.4% of admixtures. According to the invention, the pollution caused by construction wastes and waste tubular pile pulp to the environment can be reduced, the exploitation quantity and exploitation energy consumption of natural gravels can be reduced, and the production cost can be lowered.
Description
Technical field
The invention belongs to building material field, relate in particular to a kind of recycling cement concrete.
Background technology
Current normal concrete gathers materials and is mainly natural sandstone, is Nonrenewable resources, and machine instruction statement mining, had both destroyed natural ecological environment, caused again the pollution of environment.Along with the quickening of China's capital construction, construction industry enters the high speed development stage, and the concrete market requirement is increasing, causes the exploitation of natural sand stone ore also larger, and it is exhausted that natural aggregate resource also will be tending towards, also very serious to the destruction of ecotope.And the stacking of the building waste that house breaking produces has caused the pollution of environment too; discarded concrete is as the most important components of building waste; the mode that is used air storage or landfill is processed; caused serious environmental pollution; the social and environmental problems causing is thus also more and more, thus the utilization of waste oneself become one of national environmental protection and sustainable development target.And by building waste through after broken, cleaning and classification, after mixing with grating according to a certain percentage, as new concrete aggregate, and the new concrete that partly or entirely replaces natural aggregate to prepare is exploitation direction.
In the building trade of today, concrete tubular pile is widely used, its super quality and competitive price, and geological adaptability is good, and the features such as easy construction make it in all types of pile foundation constructions, occupy absolute advantage.Along with the high speed expansion of pile tube share of market, the useless slurry of discharging in its production process also becomes more and more very important source of pollution.In order to solve the de-referencing problem of useless slurry, a series of experimental study of my company's process, finds out the formula that the useless slurry of a set of utilization is produced recycling cement concrete finally.
Summary of the invention
For solving the problem existing in above-mentioned architectural environment, the invention provides a kind of recycling cement concrete economizing on resources, can building waste and the pollution of the useless slurry of pile tube to environment, reduce natural sand exploitation of stone amount and exploitation energy consumption, reduce production costs, meet the needs of construction market to concrete product and performance thereof.
The technical solution adopted in the present invention is, a kind of recycling cement concrete economizing on resources, by cement, washed-out sand, cobble, regeneration rubble, the useless slurry of pile tube, water and admixture, formed, the mass content of each component is cement 6-10%, washed-out sand 28-35%, cobble 25-30%, regeneration rubble 18-22%, the useless slurry of pile tube 7-8%, water 5-6%, admixture 0.2-0.4%, and each component weight percentage sum is 100%.
Further, the regeneration aggregate that described regeneration rubble is particle diameter≤20mm that building waste is obtained through screening after fragmentation again.
Further, the useless slurry of the useless slurry of described pile tube for producing in tubular pile production process, the mass content of its composition is water 38-42%, cement 36-40%, coal dust ash 16-18%, ground blast furnace slag 2-4%, admixture 1.5-2%.
Further, described admixture is high-efficiency water-reducing agent of poly-carboxylic acid.
Regeneration rubble of the present invention be particle diameter≤20mm that building waste is obtained through screening after fragmentation again regeneration aggregate, can realize the effective utilization to building waste, reduce the pollution of building waste to environment, reduce natural sand exploitation of stone amount and exploitation energy consumption, economize on resources, the energy.
The present invention utilizes the useless slurry of pile tube to produce again, has not only solved the pollution problem of useless slurry to environment, and has reduced cost by cement, levigate sand and the water reducer of recycling in useless slurry, has also therefore reduced the expense of processing useless slurry.
Embodiment
Below in conjunction with embodiment, the present invention is further elaborated.Described specific embodiment only, in order to explain the present invention, is not intended to limit the present invention.
Take cement 180Kg, washed-out sand 760 Kg, cobble 650 Kg, regeneration rubble 500 Kg, the useless slurry of pile tube 180 Kg, water 130 Kg, admixture 7.2 Kg.Wherein, the regeneration aggregate that regeneration rubble is particle diameter≤20mm that building waste is obtained through screening after fragmentation again; The useless slurry of the useless slurry of pile tube for producing in tubular pile production process, the mass content of its composition is water 40%, cement 38%, coal dust ash 17%, ground blast furnace slag 3%, admixture 2%; Described admixture is high-efficiency water-reducing agent of poly-carboxylic acid.
Making step of the present invention is as follows:
(1) by above-mentioned weight, take cement, washed-out sand, regeneration rubble, water and admixture;
(2) first by dropping into cement, washed-out sand, 1/2 regeneration rubble, 1/3 water and admixture input stirrer, stir 15-60 second;
(3) drop into again, 1/2 regeneration rubble and residue 2/3 water and admixture, continue to stir 60-120 second;
(4) add again the useless slurry of pile tube, continue to stir until evenly go out machine.
Can building waste and the pollution of the useless slurry of pile tube to environment, reduce natural sand exploitation of stone amount and exploitation energy consumption, both reduce production cost, saved again processing building waste and the pile tube needed financial resources of useless slurry and material resources, produced good economic benefit and social benefit.
Claims (4)
1. the recycling cement concrete economizing on resources, it is characterized in that: it is comprised of cement, washed-out sand, cobble, regeneration rubble, the useless slurry of pile tube, water and admixture, the mass content of each component is cement 6-10%, washed-out sand 28-35%, cobble 25-30%, regeneration rubble 18-22%, the useless slurry of pile tube 7-8%, water 5-6%, admixture 0.2-0.4%, and each constituent mass percentage ratio sum is 100%.
2. a kind of recycling cement concrete economizing on resources according to claim 1, is characterized in that: the regeneration aggregate that described regeneration rubble is particle diameter≤20mm that building waste is obtained through screening after fragmentation again.
3. a kind of recycling cement concrete economizing on resources according to claim 1 and 2, it is characterized in that: the useless slurry of the useless slurry of described pile tube for producing in tubular pile production process, the mass content of its composition is water 38-42%, cement 36-40%, coal dust ash 16-18%, ground blast furnace slag 2-4%, admixture 1.5-2%.
4. a kind of recycling cement concrete economizing on resources according to claim 3, is characterized in that: described admixture is high-efficiency water-reducing agent of poly-carboxylic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658136.7A CN103641403A (en) | 2013-12-09 | 2013-12-09 | Resource-saving recycled cement concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658136.7A CN103641403A (en) | 2013-12-09 | 2013-12-09 | Resource-saving recycled cement concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103641403A true CN103641403A (en) | 2014-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310658136.7A Pending CN103641403A (en) | 2013-12-09 | 2013-12-09 | Resource-saving recycled cement concrete |
Country Status (1)
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| CN (1) | CN103641403A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446211A (en) * | 2014-12-05 | 2015-03-25 | 济南长兴建设集团有限公司 | Wall brick prepared by virtue of ready-mixed concrete waste slurry |
| CN104496322A (en) * | 2014-12-23 | 2015-04-08 | 越艳 | Recycled concrete sleeper and manufacturing method thereof |
| CN109180110A (en) * | 2018-11-07 | 2019-01-11 | 昆山良友新型建材有限公司 | Premixing wet mixing mortar and premixing wet mixing mortar preparation method |
| CN111704413A (en) * | 2020-06-24 | 2020-09-25 | 南宁市嘉大混凝土有限公司 | Concrete prepared from waste slurry of concrete mixing plant |
| CN112125588A (en) * | 2020-09-25 | 2020-12-25 | 湖南省合创渣土运输有限公司 | Concrete for stair treads and manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269519A (en) * | 2007-03-23 | 2008-09-24 | 上海亿航工贸发展有限公司 | Method for producing water conservancy concrete wrest block and four-pin hollow block by using pipe pile wastewater slurry |
| CN101269520A (en) * | 2007-03-23 | 2008-09-24 | 上海亿航工贸发展有限公司 | Method for producing concrete building block by using pipe pile wastewater slurry |
| CN101555116A (en) * | 2009-05-26 | 2009-10-14 | 平顶山市天石商品混凝土有限公司 | Method for preparing high-strength concrete |
| CN101831904A (en) * | 2010-05-06 | 2010-09-15 | 南京工业大学 | Permeable concrete pile |
| CN101962280A (en) * | 2010-09-20 | 2011-02-02 | 中交第一航务工程局有限公司 | Prestress high-strength concrete tubular pile |
| CN102491688A (en) * | 2011-11-16 | 2012-06-13 | 北京科技大学 | Concrete material for pipe pile |
-
2013
- 2013-12-09 CN CN201310658136.7A patent/CN103641403A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269519A (en) * | 2007-03-23 | 2008-09-24 | 上海亿航工贸发展有限公司 | Method for producing water conservancy concrete wrest block and four-pin hollow block by using pipe pile wastewater slurry |
| CN101269520A (en) * | 2007-03-23 | 2008-09-24 | 上海亿航工贸发展有限公司 | Method for producing concrete building block by using pipe pile wastewater slurry |
| CN101555116A (en) * | 2009-05-26 | 2009-10-14 | 平顶山市天石商品混凝土有限公司 | Method for preparing high-strength concrete |
| CN101831904A (en) * | 2010-05-06 | 2010-09-15 | 南京工业大学 | Permeable concrete pile |
| CN101962280A (en) * | 2010-09-20 | 2011-02-02 | 中交第一航务工程局有限公司 | Prestress high-strength concrete tubular pile |
| CN102491688A (en) * | 2011-11-16 | 2012-06-13 | 北京科技大学 | Concrete material for pipe pile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446211A (en) * | 2014-12-05 | 2015-03-25 | 济南长兴建设集团有限公司 | Wall brick prepared by virtue of ready-mixed concrete waste slurry |
| CN104496322A (en) * | 2014-12-23 | 2015-04-08 | 越艳 | Recycled concrete sleeper and manufacturing method thereof |
| CN109180110A (en) * | 2018-11-07 | 2019-01-11 | 昆山良友新型建材有限公司 | Premixing wet mixing mortar and premixing wet mixing mortar preparation method |
| CN111704413A (en) * | 2020-06-24 | 2020-09-25 | 南宁市嘉大混凝土有限公司 | Concrete prepared from waste slurry of concrete mixing plant |
| CN112125588A (en) * | 2020-09-25 | 2020-12-25 | 湖南省合创渣土运输有限公司 | Concrete for stair treads and manufacturing method thereof |
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Application publication date: 20140319 |
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| WD01 | Invention patent application deemed withdrawn after publication |