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A recycled composite admixture using construction waste and its preparation method

A technology of compound admixture and construction waste, applied in the field of construction waste recycling, can solve the problem of less than 5% recycling rate

Active Publication Date: 2022-02-11
四川联绿强环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, the reuse of construction waste is only tens of millions of tons, and its reuse rate is less than 5%. Most of the construction waste is directly transported to the suburbs for open storage or landfill without treatment. garbage dump

Method used

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  • A recycled composite admixture using construction waste and its preparation method
  • A recycled composite admixture using construction waste and its preparation method
  • A recycled composite admixture using construction waste and its preparation method

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Embodiment

[0047] Such as Figure 1 to Figure 6As shown, the present embodiment uses construction waste as a recycled composite admixture and its preparation method, which is made of the following raw materials in parts by weight: 30 parts of concrete, 40 parts of fired bricks, 10 parts of decoration slag, and 5 parts of pulverized coal Ash, 10 parts of electric furnace steel slag, 5 parts of basalt and 0.125 parts of grinding aid. Describe its preparation process in detail below:

[0048] (1) Raw material pretreatment:

[0049] (1) Construction waste pretreatment: crush construction waste, remove iron and screen to obtain construction waste particles with a diameter of 20-50mm; among them, construction waste is divided into concrete, sintered bricks and tiles, and decoration slag. In this embodiment, the crushing and impurity removal process is carried out on the construction waste, and the construction slag particles with a particle size of 20-50 mm are transported to the silo for st...

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Abstract

The invention discloses a regenerative composite admixture using construction waste, which is made of the following raw materials in the weight ratio: 30 parts of concrete, 40 parts of sintered bricks, 10 parts of decoration slag, 5 parts of fly ash, and 10 parts of electric furnace Steel slag, 5 parts of basalt and 0.125 parts of grinding aid; the invention also provides a preparation method of recycled composite admixture using construction waste.

Description

technical field [0001] The invention relates to the technical field of construction waste recycling, in particular to a recycled composite admixture using construction waste and a preparation method thereof. Background technique [0002] With the continuous development of urban construction, waste is also increasing, and the recycling of construction waste is urgent. The construction waste mentioned in this article refers to the waste concrete / mortar / brick / tile / glass produced by construction units, construction units, new construction, reconstruction, expansion and demolition of various buildings, structures, pipe networks, etc., as well as residents' decoration and house decoration process. / Ceramics, spoils, scraps and other waste. According to incomplete statistics, the amount of construction waste produced in the process of urban construction in my country has accounted for 30% to 40% of the total amount of urban waste, becoming the largest source of urban waste. Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/16C04B20/02
CPCC04B40/0039C04B20/026B02C21/00B02C23/14B02C23/06B02C2201/06C04B18/16C04B18/08C04B18/142C04B14/14C04B18/165C04B2103/52Y02W30/91
Inventor 周元贵
Owner 四川联绿强环保科技有限公司
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