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Novel production method of concrete

A production method and concrete technology, which is applied in the field of low-cost concrete production, can solve problems such as low-cost concrete quality difficulties and technical obstacles, and achieve high strength, increased strength, and unbreakable effects

Inactive Publication Date: 2016-07-27
北京联绿技术集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are many technical obstacles in how to use said waste materials to produce concrete that meets the standard requirements, which has always caused difficulties in the quality of low-cost concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Preparation of concrete admixtures

[0055] The chemical structural formula of monomer (I) is:

[0056]

[0057] where R 1 is methyl, R 2 is an ethyl group, n is 5, and this monomer can be prepared by esterifying polyethylene glycol and methacrylic acid according to a conventional esterification method, and then reacting the esterification product with ethoxychloride according to a conventional elimination reaction, or it can be Commercially purchased directly from Sigma-Aldrich;

[0058] The chemical structural formula of monomer (II) is:

[0059] This monomer is also commercially available from Sigma-Aldrich;

[0060] Adopt emulsion polymerization method, add 80g monomer (I) and 13g monomer (II) and 200mL deionized water in the 500mL round-bottomed flask that has mechanical stirrer, nitrogen is led under stirring, then add 0.1g ammonium persulfate as The initiator is heated up to the polymerization temperature, the polymerization temperature is 80°C, and the...

Embodiment 2

[0062] Concrete was prepared by mixing the following components: 50 parts by weight of road milling waste, 15 parts by weight of aggregate obtained by crushing masonry from construction waste with an average particle size of about 15 mm, and 10 parts by weight of fly ash (from Pingdingshan Coal Mine Group), 20 parts by weight of cement, the admixture prepared by the embodiment 1 of 0.03 parts by weight, and 30 parts of water; the milling waste is the graded bone made by asphalt concrete road milling waste The graded aggregate obtained by the asphalt concrete pavement milling waste is obtained through the following steps: (1) milling the asphalt concrete pavement to be refurbished on the 107 National Highway, the first layer of milling thickness is 5cm, the second The thickness of the milling layer is 10cm; (2) Sieve the first layer of milling material, collect the particles of 10-30mm, crush the particles larger than 30mm and sieve again, and obtain the particles of 10-30mm, wh...

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Abstract

The invention provides a novel production method of concrete. The concrete is produced by mixing, by weight, 40-70 parts of road milling waste, 10-20 parts of aggregates prepared from construction waste, 5-15 parts of fly ash, 15-30 parts of cement, 0.02-0.2 part of admixture and 10-50 parts of water, wherein the milling waste is graded aggregates prepared from bituminous concrete pavement milling waste. By means of the novel production method of the concrete, pavement milling materials, the construction waste and waste steel dregs can be fully recycled, and the concrete meeting needs is obtained at low production cost.

Description

technical field [0001] The present invention relates to a new production method of concrete, more particularly to a process for producing low-cost concrete from steel slag, construction waste and road milling material. Background technique [0002] With the increasing number of ready-made concrete in the market, the competition in the ready-made concrete market is becoming increasingly fierce, and the high-profit era of ready-made concrete enterprises has long passed. Faced with this situation, only by reducing the production cost of commercial concrete can the competitiveness of commercial concrete be increased in the market. How to control the cost reasonably and effectively is the key to the survival and development of commercial concrete manufacturers. [0003] Construction waste mainly refers to all kinds of waste such as soil, waste residue, mortar, etc. generated during the construction, repair, demolition of various structures and buildings by construction units or ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C08F220/28C08F220/04
CPCC04B28/00C08F220/28C08F220/286C04B18/16C04B18/0427C04B18/08C04B24/2647C08F220/04
Inventor 梁超崔保磊王琦
Owner 北京联绿技术集团有限公司
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