CN101519295B - High-performance environment-friendly concrete and method for utilizing same to prepare pipe pile - Google Patents
High-performance environment-friendly concrete and method for utilizing same to prepare pipe pile Download PDFInfo
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- CN101519295B CN101519295B CN2009100380902A CN200910038090A CN101519295B CN 101519295 B CN101519295 B CN 101519295B CN 2009100380902 A CN2009100380902 A CN 2009100380902A CN 200910038090 A CN200910038090 A CN 200910038090A CN 101519295 B CN101519295 B CN 101519295B
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Abstract
The invention relates to a high-performance environment-friendly concrete meeting the strength level C80. Based on each cubic meter, 357 kg of cement, 153 kg of ground powder, 760 kg of artificial fine aggregate, 1,240 kg of coarse aggregate, 11.05 kg of water reducing agent and 132 kg of water are mixed to obtain the high-performance environment-friendly concrete; the ground powder, the artificial fine aggregate, and the like which replace natural river sand, fly ash, and the like used in the prior art are mixed with the cement to prepare the concrete, and the prepared concrete can meet the standard of the high performance strength level C80, and the consumption of the cement is reduced; the artificial fine aggregate is cheaper, so that the preparation cost is correspondingly reduced, particularly, the use of the artificial fine aggregate can utilize waste resources more effectively; and the natural river sand is unnecessarily exploited, thereby facilitating the protection of the natural environment. Moreover, the pipe pile prepared from the concrete has the advantages of having simple and convenient preparation conditions, making a strength level controlling value of the factory-leaving concreter reach C100 and facilitating the development of the building industry.
Description
Technical field
The present invention relates to a kind of concrete, refer in particular to a kind of high-performance environment-friendly concrete of C80 such as intensity and method that this concrete prepares pile tube of meeting.
Background technology
Strength grade of concrete is generally at C10～C80, and therefore the various raw-material quality requirements that adopts is very high.According to concrete standard and relevant specification regulation, produce the natural sand that should adopt cleaning with sand, all adopt silt content less than 1% river sand in the ordinary course of things, and its fineness modulus requirement is controlled between 2.6～3.2.It is to be the space of skeleton, fine aggregate with the coarse aggregate that concrete is formed, fill the thickness aggregate void with slurry again, and parcel thickness surface of aggregate and reduce friction resistance between them, guarantee good flowability, reasonably water cement ratio and good aggregate grading, the proportioning of optimization are the intensity that determines after concrete is strengthened, and the weather resistance after the influence sclerosis; General structural strength grade is the concrete of C80, system adopts cement, coarse aggregate, fine aggregate, water, high efficiency water reducing agent, silicon ash and flyash component, wherein the fine aggregate fineness modulus is a thick river sand in 2.5～3.4, and concrete is that cement consumption is higher really under the precondition of adulterated flour coal ash and silicon ash, cost is promoted, be unfavorable for market competition; Concrete generally need make in complexity under the high condition (very high as requirements such as temperature, pressure) when being applied to build pile tube, hinders architectural development.Especially; at concrete; in recent years; rapid expansion along with building quantity; fine natural river sand resource for building is petered out; disorderly adopt in the great rivers disorderly to dig and remain incessant after repeated prohibition,, the flood control and disaster relief work of China has been brought very adverse influence the normal shipping in river course and the serious crisis under cover of keeping the safety in production.For many years, exhaustion along with high-quality sand resource, many engineerings or manufacturing enterprise adopt fine sand or special fine sand, some local employings without the mountain sand of the silt content severe overweight that cleans, more there is only a few enterprise to adopt the extra large sand of handling without desalination, will have had a strong impact on the quality of construction work and cement prefab like this.For the exigent pile tube product of concrete quality, do not guarantee if produce with the quality of sand is good, will bring very serious consequence to construction quality.
Summary of the invention
The present invention be directed to the existing disappearance of above-mentioned prior art, main purpose is to provide that a kind of cost of manufacture is low, environmental protection and can reach the high-performance environment-friendly concrete of strength grade C80 again and use the method that this concrete prepares pile tube.
For realizing the present invention's purpose, the present invention takes following technical scheme:
A kind of high-performance environment-friendly concrete is characterized in that: in every cubic metre, be made up of following composition:
Cement 357kg
Pulverized powder 153kg
Artificial fine aggregate 760kg
Coarse aggregate 1240kg
Water reducer 11.05kg
Water 132kg
The model of described cement is PII425#.
The specific surface area of described pulverized powder is more than or equal to 4000cm
2/ g.
Described artificial fine aggregate is the aggregate chips of particle diameter less than 4.75mm.
Described coarse aggregate is the rubble of particle diameter at 5.0mm～20mm.
A kind ofly use the method that above-mentioned concrete prepares pile tube, after above-mentioned various components are fully mixed, under 80 ℃, non-pressurized condition, carry out earlier 6 hours normal pressure steam test maintenance, and then the autoclave of carrying out 10 hours gets final product under 180～190 ℃, the condition of 1.0Mpa.
The present invention compared with prior art; its advantage is to adopt blending such as pulverized powder and artificial fine aggregate to prepare concrete in cement; to replace components mixing such as natural river sand, flyash in the prior art; prepared concrete like this not only can meet the standard of high-performance intensity grade C80; and cement consumption still less; artificial fine aggregate is also more cheap; manufacturing cost is descended thereupon; the use of especially artificial fine aggregate has strengthened the effective utilization to waste resource; need not the natural river sand exploitation, help the conservation of nature environment.Preparation condition is simple, convenient when adopting the prepared pile tube of this concrete simultaneously, and the concrete strength grade controlling valu of dispatching from the factory can reach C100, helps the development of building trade.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Embodiment one: high-performance environment-friendly concrete of the present invention in every cubic metre, is to be made up of following composition, wherein:
Cement (model is P II 425#), 357kg; (specific surface area is more than or equal to 4000cm to pulverized powder
2/ g) 153kg; Artificial fine aggregate (particle diameter is less than the aggregate chips of 4.75mm) 760kg; Rough set body (rubble of 5.0mm～20mm) 1240kg; Water reducer 11.05kg; Water 132kg.
Cement after above-mentioned the preparing, pulverized powder, artificial fine aggregate, coarse aggregate, water reducer and water are mixed, and fully stirring gets final product, adopt atmospheric steam curing and autoclave at the building pile tube, wherein under normal pressure, 80 ℃ condition, carry out earlier 6 hours atmospheric steam curing, and then the autoclave of carrying out 10 hours gets final product under 180～190 ℃, the condition of 1.0Mpa.
Present embodiment is the tankage less than 4.75mm that screen out when adopting artificial fine aggregate to be the processing rubble, usually also claim aggregate chips, owing to parent rock stone matter difference, processor difference, add quality control in man-hour dynamics difference, its grain composition, particle shape and opaque content difference are very big.And aggregate chips accounts for 1/5 to 1/4 of rubble processing space ultimate production, if be not used, bulk deposition is in the mine, take farmland or grain ground, serious environment pollution, so the application and development of aggregate chips in pile tube production can promote the Sustainable development and the cleaner production of building material industry, have very remarkable economic efficiency and social benefit and environmental benefit.
It is more than or equal to 4000cm that above-mentioned pulverized powder can adopt specific surface area
2The sand of/g or slag.
Above-mentioned aggregate chips and the two price comparison of river sand: at present, 20 yuan/ton of aggregate chips prices (containing freight charges etc.), 50 yuan/ton of high-quality river sand prices after this project is finished, can reach industrialization.So, the enterprise that utilizes aggregate chips to produce commerical ready-mixed concrete 100 ten thousand stere scales per year need can reduce by 2,000 ten thousand yuan of priming costs with 700,000 tons in sand, and the economic benefit of this technology is with highly significant.China has about 2000 families of commerical ready-mixed concrete factory at present, and wherein most of factory is located at the coastal economy developed regions, annual about 20 billion cubic meters of commerical ready-mixed concrete of producing, and the output value reaches more than 5,000 hundred million Renminbi, can reduce by 40,000,000,000 yuan of priming costs.Further, need in year can reduce by 3,000,000 yuan of priming costs with 110,000 tons in sand and produce 100 myriametre pile tube scale enterprises per year, the economic benefit of this technology is with highly significant; China has about 400 families of pile tube factory at present, and wherein most of factory is located at the coastal economy developed regions, mainly concentrates on province, cities such as Zhejiang, Jiangsu, Guangdong, Fujian, Yunnan, Shanghai, Tianjin.Annual about 300,000,000 meters of all kinds of pile tubes of producing, the output value reaches more than 300 hundred million Renminbi, can reduce by 900,000,000 yuan of priming costs.
Moreover the prepared concrete of present embodiment is to meet strength grade C80 standard, and wherein present embodiment is with following (units/m compared with the prior art
3):
| Component | Cement | Pulverized powder | Artificial fine aggregate | River sand | Coarse aggregate | Flyash | The silicon ash | Water reducer | Water |
| Embodiment one | 357 | 153 | 760 | 1240 | 11.0 5 | 132 | |||
| Prior art (C80) | 450 | 544 | 1156 | 120 | 30 | 12 | 156 |
According to above-mentioned enforcement one and the concrete that prior art is equipped, test comparative test result:
| Project | The slump | Ultimate compression strength/Mpa | Split tensile strength/Mpa |
| Embodiment one | 75 | 103 | 7.1 |
| Prior art (C80) | 130 | 93 | 6.5 |
From above-mentioned test-results as can be known, adopt embodiments of the invention one prepared concrete and prior art strength grade C80 performance approaching, even can be more better in performances such as ultimate compression strength, split tensile strengths, so, the present invention still meets the standard of strength grade C80 under the less situation of the cement consumption that uses; And wherein adopt blending such as pulverized powder and artificial fine aggregate in cement, to prepare concrete; to replace components mixing such as natural river sand, flyash in the prior art; artificial fine aggregate is also more cheap; the institute so that manufacturing cost descend thereupon; the use of especially artificial fine aggregate has strengthened the effective utilization to waste resource; the natural river sand exploitation can reduce use widely, helps the conservation of nature environment.Preparation condition is simple, convenient when adopting the prepared pile tube of this concrete simultaneously, and the concrete strength grade controlling valu of dispatching from the factory can reach C100, helps the development of building trade.
The above, it only is structure preferred embodiment of the present invention, be not that technical scope of the present invention is imposed any restrictions, so every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any trickle modification, equivalent variations and modification that above embodiment did.
Claims (3)
1. high-performance environment-friendly concrete is characterized in that: in every cubic metre, be made up of following composition:
The aggregate chips less than 4.75mm that artificial fine aggregate wherein screens out when being the processing rubble, the specific surface area of described pulverized powder is more than or equal to 4000cm
2/ g, described coarse aggregate are the rubble of particle diameter at 5.0mm～20mm.
2. according to the described high-performance environment-friendly concrete of claim 1, it is characterized in that: the model of described cement is P II 425#.
3. method for preparing pile tube with the concrete of any one in the claim 1 to 2, it is characterized in that: after the concrete of any one fully mixes in the claim 1 to 2, under 80 ℃, non-pressurized condition, carry out earlier 6 hours normal pressure steam test maintenance, and then the autoclave of carrying out 10 hours gets final product under 180～190 ℃, the condition of 1.0Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100380902A CN101519295B (en) | 2009-03-23 | 2009-03-23 | High-performance environment-friendly concrete and method for utilizing same to prepare pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100380902A CN101519295B (en) | 2009-03-23 | 2009-03-23 | High-performance environment-friendly concrete and method for utilizing same to prepare pipe pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101519295A CN101519295A (en) | 2009-09-02 |
| CN101519295B true CN101519295B (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100380902A Expired - Fee Related CN101519295B (en) | 2009-03-23 | 2009-03-23 | High-performance environment-friendly concrete and method for utilizing same to prepare pipe pile |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863079B (en) * | 2010-06-11 | 2012-01-04 | 深圳市同成新材料科技有限公司 | Method for manufacturing prestressed concrete tubular pile |
| CN102093014A (en) * | 2010-12-14 | 2011-06-15 | 中国电力工程顾问集团中南电力设计院 | Natural color-separating concrete using inorganic additives |
| CN103183489B (en) * | 2011-12-27 | 2016-07-06 | 上海德滨环保科技有限公司 | A kind of Environmentally-friegreen green concrete |
| CN105859169A (en) * | 2016-04-11 | 2016-08-17 | 天津港航桩业有限公司 | Application of aggregate chips in concrete pipe pile prefabrication |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598164A (en) * | 2004-04-12 | 2005-03-23 | 中国第二十冶金建设公司 | Concrete tube pile with fine milled slag micropowder and production me thod thereof |
-
2009
- 2009-03-23 CN CN2009100380902A patent/CN101519295B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598164A (en) * | 2004-04-12 | 2005-03-23 | 中国第二十冶金建设公司 | Concrete tube pile with fine milled slag micropowder and production me thod thereof |
Non-Patent Citations (1)
| Title |
|---|
| 蔡健 主编.北仑四期高性能混凝土预制构件现场浇筑试验.《建设工程质量安全技术监督管理》.2004,第298-299页. * |
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| CN101519295A (en) | 2009-09-02 |
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Effective date of registration: 20200727 Address after: Shop No.25, Taoyuan Lane 2, banxianshan, Hengli Town, Dongguan City, Guangdong Province Patentee after: Dongguan Hengchang Construction Engineering Co.,Ltd. Address before: 523000 Guangdong province Dongguan Dongcheng road yellow village street outside No. 16 Dongguan Huaye Civil Engineering Limited company dormitory Patentee before: DONGGUAN HUAYE CIVIL FOUNDATION ENGINEERING Co.,Ltd. |
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Granted publication date: 20111214 Termination date: 20210323 |