Preparation method of light-weight aggregate concrete

A lightweight aggregate concrete, a single technology, applied in the field of building materials, can solve problems such as corrosion resistance can not meet the requirements of use

Inactive Publication Date: 2018-08-03
INNER MONGOLIA UNIV OF SCI & TECH
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  • Abstract
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Problems solved by technology

The addition of plastic steel fibers to concrete can inhibit the development of cracks, which is beneficial to the improvement of its resistance to chloride ion penetration, but the corrosion resistance still cannot meet the requirements of coastal and saline-alkali areas.

Method used

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  • Preparation method of light-weight aggregate concrete
  • Preparation method of light-weight aggregate concrete
  • Preparation method of light-weight aggregate concrete

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preparation example Construction

[0024] The preparation method of lightweight aggregate concrete according to the embodiment of the present invention includes: mixing water, cement, sand, plastic steel fiber, lightweight aggregate and water reducing agent according to the mixing ratio specified by the design strength level, and mixing the preset A single mineral admixture in a specific ratio or a multi-mineral admixture in a preset ratio can be used to obtain lightweight aggregate concrete.

[0025] In reinforced concrete, chloride ions are the main cause of corrosion of steel bars. Lightweight aggregate itself is a porous material, and there are many connected pores inside. During the process of chloride ion penetration, these connected pores can be used as chloride ion penetration way. From the perspective of the microstructure of plastic-steel fiber lightweight aggregate concrete, the strength of the chloride ion permeability resistance of concrete is mainly related to the quality of the aggregate, cement ...

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Abstract

The invention provides a preparation method of light-weight aggregate concrete. The preparation method comprises the following steps: mixing water, cement, sand, plastic-steel fiber, a lightweight aggregate and a water reducer in proportion according to design strength grade specifications, and blending a single mineral admixture in a preset proportion or blending a compound admixture in a presetproportion so as to obtain the light-weight aggregate concrete. Through the technical scheme, the chlorine ion diffusion parameter of the light-weight aggregate concrete with the plastic-steel fiber is effectively reduced, and the chloride penetration resistance of the light-weight aggregate concrete with the plastic-steel fiber is improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a method for preparing lightweight aggregate concrete. Background technique [0002] Lightweight aggregate concrete refers to concrete with dry apparent density not greater than 1950kg / m3 prepared with light coarse aggregate, light sand (or ordinary sand), cement and water. Plastic steel fiber (polypropylene fiber) lightweight aggregate concrete is based on lightweight aggregate concrete mixed with plastic steel fiber, which not only maintains the advantages of traditional lightweight aggregate concrete, but also has good tensile and split resistance properties. [0003] With the continuous development of civil engineering technology, people pay more and more attention to the durability of reinforced concrete structures in addition to the appearance, quality and economic benefits of reinforced concrete buildings. The corrosion of steel bars will reduce the durability ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/20C04B2111/40C04B14/06C04B14/48C04B18/08C04B18/142C04B18/146C04B2103/302
Inventor 牛建刚王梦雨王潇鹏
Owner INNER MONGOLIA UNIV OF SCI & TECH
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