CN105060820A - Preparation of economical C60 high-strength concrete - Google Patents
Preparation of economical C60 high-strength concrete Download PDFInfo
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- CN105060820A CN105060820A CN201510489985.3A CN201510489985A CN105060820A CN 105060820 A CN105060820 A CN 105060820A CN 201510489985 A CN201510489985 A CN 201510489985A CN 105060820 A CN105060820 A CN 105060820A
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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
Abstract
The invention relates to preparation of economical C60 high-strength concrete and discloses C60 high-strength concrete with the optimized mix proportion. Fly ash, slag powder, sand, gravel, an admixture and water are adopted as main materials, a plurality of set mix proportions are obtained through mix proportion and orthogonal test design, testing and analysis optimization, and then strength tests are performed according to the mix proportions. The C60 high-strength concrete is obtained according to test results as well as comparison and selection and is characterized in that for concrete per cubic meter, 533 kg of a cementing material, 609 kg of the sand and 1082 kg of the gravel are used. The mass of a superplasticizer accounts for 0.305% of the total mass of the concrete and the admixture with the mass accounting for 1.375% of the total mass of the cementing material is added. The ratio of the water to the cementing material is 0.32. The prepared concrete meets the C60 high-strength concrete requirement. The mix proportion can be applied to engineering practice for reference.
Description
Technical field
The present invention relates to the strong concrete applied technical field in construction work.
Background technology
In construction work, along with Highrise buildings flies development, the needs of high-strength concrete are got more and more, but high-strength concrete general cost is higher, how prepares the problem that high-strength concrete that economical effectiveness meets Highrise buildings needs preferably is a general needs solution.The concrete of C60 strength grade is a kind of high-strength concrete that Application comparison is many, and therefore preparing this concrete as far as possible economically has larger Practical significance and economical effectiveness.
Summary of the invention
The object of the invention is for concrete structure engineering proposes a kind of practicality, there is the C60 preparation method of concrete of better technical and economy.
In order to achieve the above object, the present invention proposes a kind of economical C60 high-strength concrete preparation method, in mix Design, carry out multi-scheme to compare, breeze and flyash pair is adopted to mix method, and add as C60 high-strength concrete prepared by high efficiency water reducing agent, ensure that the C60 high-strength concrete quality of supply and achieve good economic effect.The optimizing mixing proporiton obtained is as following table.
The every cubic meter of concrete material usage kg/m of table 1
3
Described high efficiency water reducing agent accounts for 0.305% of concrete total mass, and admixture adds by binder total amount 1.375%.Its water-cement ratio is 0.32.
Described cement adopts changzhou to raise sub-cement P042.5, meets the regulation of existing national standard " general purpose portland cement " (GB175-2007).Its salient features is in table 2.
Table 2 cement physical properties index
Described sand is the Changjiang river natural sand, and its physicals technical indicator is as table 3.
Table 3 sand physicals technical indicator
The rubble that coarse aggregate adopts is that port product is worn in Liyang, and macadam gradating belongs to continuous grading, and its physicals technical indicator is as table 4.
Table 4 rubble physicals technical indicator
Described flyash adopts Changzhou state electricity C class II level ash; Liyang is adopted to produce S95 level breeze.
Advantage of the present invention is: the industry byproduct flyash utilizing cost very low and slag powders, draft by multiple proportioning and test, the strength grade therefrom having optimized satisfied design and construction requirement is C60 high-strength high-performance concrete, test the concrete 28 days ultimate compression strength obtained and reach 71.8MPa, seepage-resistant grade reaches P12.Concrete works practical application shows, the concrete of preparation meets the needs to C60 high-strength concrete in construction work very well, proportioning in use reaches the indexs such as good intensity, simultaneously owing to having mixed breeze and flyash, save cost, every cubic meter of concrete, than the saving of not mixing about 29 yuan, achieves good economic benefit.
Embodiment
Now the present invention will be further described in conjunction with the embodiments.
Example: prepare by the consumption of the various material of every cubic meter concrete, every cubic meter the reinforcement of concrete flyash 53kg, slag powders 160kg, cement 320kg, sand 609kg, rubble 1082kg, high efficiency water reducing agent 7.33kg, add water 171kg.For each mix amount of mixing machinery, determine a charging capacity of various material, water ratio should be measured to the natural sandstone deposited before attention feeds intake, actual used water amount will deduct the water yield in sandstone, and sandstone actual amount will consider the change of moisture own, ensure that sandstone dry mass meets ratio requirement constant.Various material will mix, high efficiency water reducing agent should first be added to the water mix after use together, after water reducer is added to the water mixes by every cubic meter concrete seven .33kg, can add in other the various material mixed, adopt churned mechanically mode, all material mix is even, pour in template, undertaken vibrating by construction technical requirement, health.
Claims (5)
1., through a C60 high-strength concrete for mixtures optimal design, adopt main raw cement, flyash, slag powders, sand, rubble, admixture, water.Through Mix Ratio Test design, obtain some proportionings drafted, then test by proportioning.A kind of C60 level high-strength concrete is obtained by the ratio choosing of test-results.It is characterized in that: every cubic meter the reinforcement of concrete flyash 53kg, slag powders 160kg, cement 320kg, sand 609kg, rubble 1082kg, high efficiency water reducing agent 7.33kg, add water 171kg.The concrete of preparation reaches the standard of C60 high-strength concrete.
2. a kind of C60 high-strength concrete according to claim 1, it is characterized in that: described high efficiency water reducing agent accounts for 0.305% of concrete total mass, and add by binder total amount 1.375%, described high efficiency water reducing agent originates from Jiangsu Subotexin Material Co., Ltd.
3. a kind of C60 high-strength concrete according to claim 1, is characterized in that: described water-binder ratio is 0.32.
4. concrete according to claim 1, is characterized in that: adopt changzhou to raise sub-cement P042.5, meet the regulation of existing national standard " general purpose portland cement " (GB175-2007); Flyash adopts Changzhou state electricity C class II level ash; Liyang is adopted to produce S95 level breeze; Sand adopts the river sand of prototype gradation, is in 2nd district, and grating is good, is fineness modulus 2.7 medium sand, tap density 1540kg/m
3; The coarse aggregate adopted is the rubble of the diameter 5-31.5mm adopting continuous grading, high material.Coarse-fine aggregate all meets the regulation of existing industry standard " regular concrete sand, stone quality and test method standard " (JGJ52-2006).
5. a kind of C60 high-strength concrete according to claim 1, it is characterized in that: the various materials needed for preparation will by certain feeding sequence successively by even for various material mixing, but first admixture will be added to the water, adopt churned mechanically mode, by even for all material mix, pour into template, vibration compacting, health.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489985.3A CN105060820A (en) | 2015-08-08 | 2015-08-08 | Preparation of economical C60 high-strength concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510489985.3A CN105060820A (en) | 2015-08-08 | 2015-08-08 | Preparation of economical C60 high-strength concrete |
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| CN105060820A true CN105060820A (en) | 2015-11-18 |
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| CN201510489985.3A Pending CN105060820A (en) | 2015-08-08 | 2015-08-08 | Preparation of economical C60 high-strength concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979700A (en) * | 2021-12-09 | 2022-01-28 | 江苏致信桥梁检测与维修加固有限公司 | C60 concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04193751A (en) * | 1990-11-27 | 1992-07-13 | Hitachi Cement Kk | High-strength concrete formed article |
| CN101891426A (en) * | 2010-08-04 | 2010-11-24 | 中铁二局股份有限公司 | Low-creep C60 high-performance concrete |
| CN103011727A (en) * | 2012-12-25 | 2013-04-03 | 张庆彬 | Low creep concrete |
| CN103922680A (en) * | 2014-03-22 | 2014-07-16 | 中国二十二冶集团有限公司 | Method for preparing green high-performance concrete by large doping amount mineral admixture |
| CN104150840A (en) * | 2014-08-19 | 2014-11-19 | 华润水泥技术研发（广西）有限公司 | C60 full-manufactured sand super high-rise pump concrete |
-
2015
- 2015-08-08 CN CN201510489985.3A patent/CN105060820A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04193751A (en) * | 1990-11-27 | 1992-07-13 | Hitachi Cement Kk | High-strength concrete formed article |
| CN101891426A (en) * | 2010-08-04 | 2010-11-24 | 中铁二局股份有限公司 | Low-creep C60 high-performance concrete |
| CN103011727A (en) * | 2012-12-25 | 2013-04-03 | 张庆彬 | Low creep concrete |
| CN103922680A (en) * | 2014-03-22 | 2014-07-16 | 中国二十二冶集团有限公司 | Method for preparing green high-performance concrete by large doping amount mineral admixture |
| CN104150840A (en) * | 2014-08-19 | 2014-11-19 | 华润水泥技术研发（广西）有限公司 | C60 full-manufactured sand super high-rise pump concrete |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979700A (en) * | 2021-12-09 | 2022-01-28 | 江苏致信桥梁检测与维修加固有限公司 | C60 concrete and preparation method thereof |
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Application publication date: 20151118 |
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