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Concrete dry mixing material of post-cast bare concrete face layer and its preparation method

A fair-faced concrete and concrete technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of manpower and material resources, heavy concrete weight, etc., and achieve easy transportation, weight reduction, and pollution-free. Effect

Inactive Publication Date: 2017-10-17
HUBEI WUDA LUOJIA INSPECTION & CONSULTATION OF ENG STRUCTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the rapid development of society, the urban construction industry is increasing rapidly. Due to the heavy weight of concrete, a lot of manpower and material resources are spent in the transportation process. Therefore, we propose a concrete surface layer of post-cast concrete Dry mix and preparation method thereof

Method used

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Effect test

Embodiment 1

[0022] The present invention proposes a formula of concrete dry mix for post-pouring fair-faced concrete surface layer, the formula of its raw materials by weight is as follows: 500 parts of cement, 200 parts of fine sand, 100 parts of quicklime, 200 parts of gravel, 50 parts of fly ash , 30 parts of granite stone powder, 40 parts of mineral admixture, 10 parts of reinforcing agent, 10 parts of superplasticizer, and 10 parts of accelerator.

[0023] The present invention also provides a kind of preparation method of the dry mix of concrete of post-pouring fair-faced concrete surface course, comprises the steps:

[0024] S1. Select the agitator as an auxiliary tool, and after cleaning and air-drying the agitator, set it aside;

[0025] S2. Put cement and fine sand in the above weight ratio into the mixer, and add water to it at the same time, and the weight ratio of cement and fine sand to water is 3:1. First, pre-stir for 30s, then add quicklime and gravel, again Pre-stirring...

Embodiment 2

[0032] The present invention proposes a formula of concrete dry mix for post-pouring fair-faced concrete surface, the formula of its raw materials by weight is as follows: 520 parts of cement, 220 parts of fine sand, 120 parts of quicklime, 220 parts of gravel, 60 parts of fly ash , 40 parts of granite stone powder, 45 parts of mineral admixture, 13 parts of reinforcing agent, 13 parts of superplasticizer, and 13 parts of quick-setting agent.

[0033] The present invention also provides a kind of preparation method of the dry mix of concrete of post-pouring fair-faced concrete surface course, comprises the steps:

[0034] S1. Select the agitator as an auxiliary tool, and after cleaning and air-drying the agitator, set it aside;

[0035] S2. Put cement and fine sand in the above weight ratio into the mixer, and add water to it at the same time, and the weight ratio of cement and fine sand to water is 3:1. First, pre-stir for 40s, then add quicklime and gravel, and then Pre-sti...

Embodiment 3

[0042] The present invention proposes a formula of concrete dry mix for post-pouring fair-faced concrete surface layer. The formula of its raw materials by weight is as follows: 580 parts of cement, 280 parts of fine sand, 180 parts of quicklime, 280 parts of gravel, and 80 parts of fly ash , 60 parts of granite stone powder, 50 parts of mineral admixture, 17 parts of reinforcing agent, 17 parts of superplasticizer, and 17 parts of quick-setting agent.

[0043] The present invention also provides a kind of preparation method of the dry mix of concrete of post-pouring fair-faced concrete surface course, comprises the steps:

[0044] S1. Select the agitator as an auxiliary tool, and after cleaning and air-drying the agitator, set it aside;

[0045] S2. Put cement and fine sand in the above weight ratio into the mixer, and add water to it at the same time, and the weight ratio of cement and fine sand to water is 3:1. First, pre-stir for 50s, then add quicklime and gravel, and aga...

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PUM

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Abstract

The invention discloses a concrete dry mixing material of a post-cast bare concrete face layer, which is prepared from, by weight, 500-600 parts of cement, 200-300 parts of fine sand, 100-200 parts of quick lime, 200-300 parts of stone, 50-100 parts of fly ash, 30-70 parts of granite stone powder, 40-60 parts of mineral admixtures, 10-20 parts of enhancer, 10-20 parts of high-efficient water reducer, and 10-20 parts of accelerator. The invention further provides a preparation method of the concrete dry mixing material of the post-cast bare concrete face layer. The method effectively lightens the weight of the concrete dry mixing material, enhances the tensile strength and service life of the concrete dry mixing material, and further improves the compact degree of the concrete dry mixing material; moreover, the preparation method is simple and reliable, and free from pollution.

Description

technical field [0001] The invention relates to the technical field of building material preparation, in particular to a concrete dry mix for a post-cast fair-faced concrete surface and a preparation method thereof. Background technique [0002] Concrete is one of the most important civil engineering materials today. It is composed of cementitious materials, granular aggregates (also known as aggregates), water, and additives and admixtures added when necessary, prepared in a certain proportion, uniformly stirred, densely formed, cured and hardened. artificial stone. Concrete has the characteristics of rich raw materials, low price and simple production process, so its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make it widely used, not only in various civil engineering, but also in shipbuilding, machinery industry, marine develo...

Claims

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Application Information

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IPC IPC(8): C04B28/10C04B14/04C04B18/14C04B18/04C04B18/12
CPCC04B14/048C04B18/0445C04B18/12C04B18/141C04B18/146C04B28/10C04B7/00C04B14/06C04B14/02C04B18/08C04B2103/0068C04B2103/302C04B2103/12Y02W30/91
Inventor 高作平李北星万雄卫陈常明
Owner HUBEI WUDA LUOJIA INSPECTION & CONSULTATION OF ENG STRUCTURE
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