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Preparation method of high-strength concrete

A concrete, high-strength technology, applied in chemical instruments and methods, screens, grids, etc., can solve the problems of difficulty in processing high-quality concrete, affecting the firmness of buildings, and high equipment investment costs, achieving long service life, mixing The effect of high uniformity and reduced processing cost

Active Publication Date: 2018-05-22
冀东水泥重庆江津有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing crushing methods are difficult to achieve fine crushing of construction waste. Usually, multiple crushing processes are required to obtain small crushed stones, which takes a long time to process and low work efficiency; and requires the use of multiple different processing equipment. The cost of equipment investment is high and energy consumption is high; and the qualified rate of the final crushed stone is low, which is difficult to meet the needs of processing high-quality concrete; and the strength of concrete prepared by traditional methods is low, which affects the firmness of buildings

Method used

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  • Preparation method of high-strength concrete
  • Preparation method of high-strength concrete
  • Preparation method of high-strength concrete

Examples

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Embodiment 1

[0035]A preparation method for high-strength concrete, comprising the following steps: (1) raw material preparation: take 500kg of cement, 1000kg of gravel, 160kg of water, 6kg of water reducing agent, 8kg of phenolic fiber and 60kg of montmorillonite; wherein the gravel passes through a crushing device Obtained by crushing construction waste, and the particle size of the sand is 8mm; the water reducer is composed of the following components in parts by weight: 40 parts of polycarboxylic acid mother liquor, 6 parts of slump-retaining agent, 2.5 parts of borax, 4 parts of plastic-preserving agent and 35 parts of water; the slump-preserving agent and plastic-preserving agent can be purchased directly on the market, so the materials are not specifically limited; (2) dry mixing: mix cement, gravel, water reducing agent, The phenolic fiber and montmorillonite are put into the mixer for dry material premixing, and the mixture A is obtained after mixing evenly; the specific mixing ste...

Embodiment 2

[0041] A preparation method for high-strength concrete, comprising the following steps: (1) raw material preparation: take 500kg of cement, 1000kg of gravel, 160kg of water, 6kg of water reducing agent, 8kg of phenolic fiber and 60kg of montmorillonite; wherein the gravel passes through a crushing device Obtained by crushing construction waste, and the particle size of the sand is 10mm; the water reducer is composed of the following components in parts by weight: 45 parts of polycarboxylic acid mother liquor, 10 parts of slump-retaining agent, 3.5 parts of borax, 6 parts of plastic-preserving agent and 40 parts of water; said slump-preserving agent and plastic-preserving agent can be purchased directly on the market, so the materials are not specifically limited; (2) dry mixing: mix cement, gravel, water reducing agent, The phenolic fiber and montmorillonite are put into the mixer for dry material premixing, and the mixture A is obtained after mixing evenly; the specific mixing...

Embodiment 3

[0044] A preparation method for high-strength concrete, comprising the following steps: (1) raw material preparation: take 500kg of cement, 1000kg of gravel, 160kg of water, 6kg of water reducing agent, 8kg of phenolic fiber and 60kg of montmorillonite; wherein the gravel passes through a crushing device Obtained by crushing construction waste, and the particle size of the sand is 8mm; the water reducer is composed of the following components in parts by weight: 45 parts of polycarboxylic acid mother liquor, 6 parts of slump-retaining agent, 2.5 parts of borax, 6 parts of plastic-preserving agent and 40 parts of water; the slump-preserving agent and plastic-preserving agent can be purchased directly on the market, so the materials are not specifically limited; (2) dry mixing: mix cement, gravel, water reducing agent, The phenolic fiber and montmorillonite are put into the mixer for dry material premixing, and the mixture A is obtained after mixing evenly; the specific mixing st...

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Abstract

The invention discloses a preparation method of high-strength concrete. The preparation method comprises the following steps: (1) preparing raw materials: taking cement, gravel, water, a water reducer, phenolic fiber and montmorillonite, wherein the gravel is obtained by crushing building wastes through a crushing device; (2) carrying out dry mixing: adding the cement, the gravel, the water reducer, the phenolic fiber and the montmorillonite into a mixer and carrying out dry material pre-mixing; after uniformly mixing, obtaining a mixture A; (3) carrying out wet mixing: putting the mixture A into a stirrer and adding the water and fine aggregate into the stirrer; then uniformly mixing to prepare slurry-shaped concrete. According to the preparation method disclosed by the invention, dry mixing operation is carried out before the wet mixing, so that dry powder type materials have higher mixing uniformity in a mixing process and various materials are mixed together.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a preparation method of high-strength concrete. Background technique [0002] The preparation of concrete requires a large amount of sand and gravel. Due to the shortage of sand and gravel resources, people began to use crushed construction waste to replace sand and gravel to meet the demand for sand and gravel in construction projects. However, the existing crushing methods are difficult to achieve fine crushing of construction waste. Usually, multiple crushing processes are required to obtain small crushed stones, which takes a long time to process and low work efficiency; and requires the use of multiple different processing equipment. The investment cost of equipment is high, and the energy consumption is large; and the qualified rate of the final crushed stone is low, which is difficult to meet the needs of processing high-quality concrete; and the strength ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/02C04B111/20
CPCB02C4/08B02C23/16B02C2023/165B07B1/28B07B1/42B07B1/46C04B20/026C04B28/00C04B40/0028C04B2111/00017C04B2111/20C04B20/02C04B14/06C04B18/16C04B2103/302C04B16/0675C04B14/104C04B14/02
Inventor 李永建
Owner 冀东水泥重庆江津有限责任公司
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