Preparation method of concrete for building construction

A technology of concrete and construction, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of high energy consumption, high equipment investment cost, high operating cost, etc., and achieve low energy consumption and high work efficiency , the effect of low workload of workers

Active Publication Date: 2018-06-05
广州市宏翰混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, two or more devices need to be operated at the same time, the operating cost is high, the equipment investment cost is large, and the energy consumption is also very large

Method used

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  • Preparation method of concrete for building construction
  • Preparation method of concrete for building construction
  • Preparation method of concrete for building construction

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A method for preparing concrete for building construction, comprising the following steps: (1) Raw material preparation: take cement, gravel, sand, sludge, coal gangue, sepiolite powder, imitation steel fiber, expansion agent, water, and water reducing agent Wherein sand and gravel and sand are obtained by crushing construction waste through a crushing device. After the crushing device is crushed once, 60% of the material is taken out to be sand and gravel; then the remaining 40% of the sand and gravel are continuously crushed to obtain sand; specifically, The particle size of the sand and gravel is 8 mm, and the particle size of the sand is 2 mm; the sludge is obtained by scraping mud at the bottom of the sedimentation tank by a mud scraper; the water reducing agent is composed of the following components in parts by weight: 40 parts of polycarboxylic acid mother liquor, 6 parts of slump-preserving agent, 2.5 parts of triethanolamine, 4 parts of acetone; sepiolite powder ...

Embodiment 2

[0039] A method for preparing concrete for building construction, comprising the following steps: (1) Raw material preparation: take cement, gravel, sand, sludge, coal gangue, sepiolite powder, imitation steel fiber, expansion agent, water, and water reducing agent Wherein sand and gravel and sand are obtained by crushing construction waste through a crushing device. After the crushing device is crushed once, 60% of the material is taken out to be sand and gravel; then the remaining 40% of the sand and gravel are continuously crushed to obtain sand; specifically, The particle size of the sand is 10 mm, and the particle size of the sand is 3 mm; the sludge is obtained by scraping the sludge at the bottom of the sedimentation tank by a mud scraper; the water reducer is composed of the following components in parts by weight: 45 parts of polycarboxylic acid mother liquor, 10 parts of slump-preserving agent, 3.5 parts of triethanolamine, 6 parts of acetone; sepiolite powder obtaine...

Embodiment 3

[0042] A method for preparing concrete for building construction, comprising the following steps: (1) Raw material preparation: take cement, gravel, sand, sludge, coal gangue, sepiolite powder, imitation steel fiber, expansion agent, water, and water reducing agent Wherein sand and gravel and sand are obtained by crushing construction waste through a crushing device. After the crushing device is crushed once, 60% of the material is taken out to be sand and gravel; then the remaining 40% of the sand and gravel are continuously crushed to obtain sand; specifically, The particle size of the sand is 10mm, and the particle size of the sand is 2mm; the sludge is obtained by scraping the sludge at the bottom of the sedimentation tank by a scraper; the water reducer is composed of the following components in parts by weight: 40 parts of polycarboxylic acid mother liquor, 10 parts of slump-preserving agent, 2.5 parts of triethanolamine, 4 parts of acetone; sepiolite powder obtained by g...

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Abstract

The invention discloses a preparation method of concrete for building construction. The preparation method comprises the following steps of: (1) raw material preparation: taking cement, sandstone, sand, gangue, meerschaum powder, a simulated steel fiber, an expanding agent, water and a water reducer, (2) dry mixing, and (3) wet mixing: putting a mixture B into a stirrer, and adding water into thestirrer for uniform stirring to form the grouted concrete, wherein the sandstone and the sand are prepared by crushing construction waste via a crushing device; 60% of a material taken out after primary crushing by the crushing device is the sandstone; and the rest 40% of the sandstone are continuously crushed to form the sand. The sand and the sandstone are prepared by crushing the construction waste; a resource is saved; the sand and the sandstone can be prepared by crushing via the single crushing device; and the equipment input cost is low.

Description

technical field [0001] The invention belongs to the technical field of buildings, and in particular relates to a method for preparing concrete for building construction. Background technique [0002] Due to the shortage of sand and gravel resources, people began to use crushed construction waste to prepare sand and sand to meet the demand for sand and gravel in the preparation of concrete in construction projects. However, the traditional crushing method is to preliminarily crush construction waste through crushing equipment to obtain sand and gravel, and then use sand making equipment to process the crushed stone to obtain sand. In this way, two or more devices need to be operated at the same time, and the operation cost is high, the equipment investment cost is large, and the energy consumption is also very large. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the invention provides a method for preparing concrete for building...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00B02C4/08B02C4/42B02C4/30C04B18/16
CPCB02C4/08B02C4/30B02C4/42C04B28/00C04B18/16C04B18/12C04B14/042C04B16/065C04B2103/0068C04B24/24C04B2103/308C04B24/122C04B24/008Y02W30/91
Inventor 林厚开
Owner 广州市宏翰混凝土有限公司
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