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Concrete production process

A production process and concrete technology, applied in the technical field of producing low-cost concrete, can solve the problems of low-cost concrete manufacturing difficulties, technical obstacles, etc., and achieve the effects of toughness, improved strength, and not easy to be broken.

Inactive Publication Date: 2016-08-10
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 to produce concrete that meets the standard requirements, which has always caused difficulties in the manufacture of low-cost concrete

Method used

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Embodiment 1

[0055] Preparation of concrete admixtures

[0056] The chemical structural formula of monomer (I) is:

[0057]

[0058] 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;

[0059] The chemical structural formula of monomer (II) is:

[0060] This monomer is also commercially available from Sigma-Aldrich;

[0061] 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

[0063] 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 bricks and stones in construction waste, the average particle size of which is about 15 mm, 10 parts by weight of finely powdered steel slag, The cement of 20 parts by weight, the admixture prepared by the embodiment 1 of 0.03 parts by weight, and 30 parts of water; The milling waste is the graded aggregate made from the asphalt concrete road milling waste; The graded aggregate obtained from road surface milling waste is obtained through the following steps: (1) milling the asphalt concrete pavement to be refurbished on National Highway 107, the thickness of the first layer of milling is 5cm, and the thickness of the second layer of milling is 10cm; (2) Sieve the first layer of milling material, collect particles of 10-30mm, crush the particles larger than 30mm and sieve again to obtain particles of 10-30mm, which are re...

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Abstract

The invention provides a concrete production process. According to the invention, concrete is produced by mixing of the following components: 40-70 parts by weight of road milling waste, 10-20 parts by weight of construction waste made aggregate, 1-15 parts by weight of steel slag micropowder, 15-30 parts by weight of cement, 0.02-0.2 parts by weight of an admixture, and 10-50 parts of water. The milling waste is grading aggregate made from asphalt concrete pavement milling waste. The process can fully reuse pavement milling materials, construction waste and steel scrap so as to obtain desirable concrete at low production cost.

Description

technical field [0001] The present invention relates to a new production process 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): C04B28/00C04B18/16
CPCC04B18/16C04B28/00C04B18/142Y02W30/91
Inventor 崔保磊梁超王琦
Owner 北京联绿技术集团有限公司
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