Early strength agent used for concrete hollow bricks

A technology of early strength agent and hollow brick, which is applied in the field of building materials, can solve the problems of long demoulding time and low production efficiency, and achieve the effects of shortening demoulding time, improving work efficiency and reducing slump

Inactive Publication Date: 2018-02-09
兰新良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an early strength agent for concrete hollow bricks, so as to overcome the shortcomings of long demoulding time and low production efficiency of cement products

Method used

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  • Early strength agent used for concrete hollow bricks

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Experimental program
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Effect test

Embodiment 1

[0016] An early strength agent for concrete hollow bricks. In parts by weight, the early strength agent comprises the following raw materials: 5 parts of rosin, 4 parts of phenol, 3 parts of magnesium trisilicate, 7 parts of potassium hydrogen tartrate, 8 parts of triethanolamine, 2 parts of shale ash, 6 parts of methyl methacrylate, 9 parts of urea, 5 parts of trehalose, 12 parts of cellulose ether, 7 parts of calcium formate, 5 parts of isopropanol, 6 parts of soda, 3 parts of glycolic acid, kaolin 9 parts, 3 parts of p-toluenesulfonic acid and 8 parts of nano calcium carbonate.

[0017] The cellulose ether is ethyl cellulose and benzyl cellulose, and the mixing mass ratio is 1:1.

[0018] The strength accelerator prepared in this example is used to prepare concrete hollow bricks, and the mass ratio of the strength accelerator in the hollow concrete brick is as follows: early strength agent: cement is 3:100.

Embodiment 2

[0020] An early strength agent for concrete hollow bricks, in parts by weight, the early strength agent comprises the following raw materials: 2 parts of rosin, 5 parts of phenol, 1 part of magnesium trisilicate, 11 parts of potassium hydrogen tartrate, 11 parts of triethanolamine, 3 parts of shale ash, 5 parts of methyl methacrylate, 13 parts of urea, 3 parts of trehalose, 15 parts of cellulose ether, 6 parts of calcium oxalate, 2 parts of isopropanol, 8 parts of soda, 5 parts of glycolic acid, kaolin 7 parts, 4 parts of p-toluenesulfonic acid and 6 parts of nano calcium carbonate.

[0021] The cellulose ether is carboxymethyl cellulose and ethyl cellulose, and the mixing mass ratio is 1:1.

[0022] The strength accelerator prepared in this example is used to prepare concrete hollow bricks. The mass ratio of the strength accelerator in the hollow concrete brick is 1:100 of strength accelerator: cement.

Embodiment 3

[0024] An early strength agent for concrete hollow bricks. In parts by weight, the early strength agent comprises the following raw materials: 9 parts of rosin, 3 parts of phenol, 5 parts of magnesium trisilicate, 4 parts of potassium hydrogen tartrate, 5 parts of triethanolamine, 1 part of shale ash, 9 parts of methyl methacrylate, 7 parts of urea, 7 parts of trehalose, 9 parts of cellulose ether, 10 parts of calcium oxalate, 7 parts of isopropanol, 3 parts of soda, 1 part of glycolic acid, kaolin 12 parts, 1 part of p-toluenesulfonic acid and 13 parts of nano calcium carbonate.

[0025] The cellulose ether is hydroxyethyl methylcellulose.

[0026] The strength accelerator prepared in this example is used to prepare concrete hollow bricks. The mass ratio of the strength accelerator in the hollow concrete brick is 5:100.

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Abstract

The invention discloses an early strength agent for concrete hollow bricks, which comprises at least the following raw materials: rosin, phenol, magnesium trisilicate, potassium bitartrate, triethanolamine, shale ash, methylmethacrylate, urea and trehalose. The early strength agent for the concrete hollow bricks can achieve the synergistic complementary effect of the raw materials. In 1d time, thecompressive strength ratio can reach 200% or above, and thereby demoulding requirements of the concrete hollow bricks can be satisfied. The early strength agent reduces the slump amount of the concrete hollow brick during demoulding, shortens the demoulding time, and improves work efficiency.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an accelerator for concrete hollow bricks. Background technique [0002] Early strength agent is one of the admixtures of cement and cement base material. It refers to the admixture that can improve the early strength of cement and cement-based products, and has no significant effect on the later strength. The main function of the early strength agent is to accelerate the hydration speed of cement and promote the development of early strength of concrete; it not only has the function of early strength, but also has a certain function of water reduction and enhancement. When the existing concrete hollow bricks are produced, the demoulding time is long, which seriously affects the production efficiency. The use of the existing early strength agent still has the disadvantages of poor use effect and long demoulding time. [0003] The information disclosed in this Background sectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/10
Inventor 兰新良
Owner 兰新良
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