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Active synergist for concrete and cement products

A technology for cement products and synergists, applied in the directions of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of high cost of high-pressure equipment, long cycle, and finished products meet design requirements, so as to improve production efficiency , huge economic and social benefits, the effect of shortening time

Inactive Publication Date: 2012-09-12
JIANHUA CONSTR MATERIALS (JIANGSU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the first maintenance method is relatively long, and the cost of high-voltage equipment required by the third maintenance method is relatively high
Although the second maintenance method has a shorter period and lower cost, it is often difficult to make the finished product meet the design requirements. It is necessary to continuously optimize and improve the product formula and maintenance process

Method used

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  • Active synergist for concrete and cement products
  • Active synergist for concrete and cement products
  • Active synergist for concrete and cement products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A high-performance active synergist, which is uniformly compounded by various components. The proportions of each component by weight percentage are: 10% microsilica, 70% natural ground gypsum, 14% highly active calcium oxide, 1% N-acyl lauryl sarcosinate, 5% % silicate. The following performance tests were carried out for the compounded high activity synergist and its application.

[0015] 1. Experiments on improving the fluidity of cement paste and the strength of mortar by using active synergists

[0016] In 500g of P·II52.5 grade cement, add 150g of water and 7.5g of naphthalene-based water reducer to obtain a benchmark cement slurry with a water-binder ratio of 0.30; then use the cement in the benchmark cement slurry with an active The synergists replaced 15%, 30% and 45% by weight to obtain four cement slurries, and the four cement slurries were tested. Table 1 shows the flow properties of four kinds of cement slurries.

[0017] Table 1

[0018]

[0019] I...

Embodiment 2

[0039] A high-performance active synergist, which is uniformly compounded by various components. The ratio of each component by weight percentage is: 50% superfine fly ash, 10% natural ground gypsum, 20% desulfurized gypsum, 15% highly active calcium oxide, 1% N lauroyl glycine Potassium, 4% inorganics. The following performance tests were carried out for the compounded high activity synergist and its application.

[0040] 1. Experiments on improving the fluidity of cement paste and the strength of mortar by using active synergists

[0041] In 500g of P·II52.5 grade cement, add 150g of water and 7.5g of naphthalene-based water reducer to obtain a benchmark cement slurry with a water-binder ratio of 0.30; then use the cement in the benchmark cement slurry with an active The synergists replaced 15%, 30% and 45% by weight to obtain four cement slurries, and the four cement slurries were tested. Table 1 shows the flow properties of four kinds of cement slurries. Table 1

[00...

Embodiment 3

[0062] A high-performance active synergist, which is uniformly compounded by various components. The proportions of each component by weight percentage are: 10% microsilica, 18% ultrafine fly ash, 10% desulfurized gypsum, 60% highly active calcium oxide, 0.5% N-lauroyl glutamic acid Sodium acid, 1.5% inorganic substances. The following performance tests were carried out for the compounded high activity synergist and its application.

[0063] 1. Experiments on improving the fluidity of cement paste and the strength of mortar by using active synergists

[0064] In 500g of P·II52.5 grade cement, add 150g of water and 7.5g of naphthalene-based water reducer to obtain a benchmark cement slurry with a water-binder ratio of 0.30; then use the cement in the benchmark cement slurry with an active The synergists replaced 15%, 30% and 45% by weight to obtain four cement slurries, and the four cement slurries were tested. Table 1 shows the flow properties of four kinds of cement slurri...

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Abstract

The invention discloses an active synergist for concrete and cement products, comprising 10-70 wt% of active silica, 10-70 wt% of sulfate, 10-60 wt% of calcium oxide, 0.5-2 wt% of surfactant and 1-5 wt% of inorganic additive. By adding the active synergist of the invention in the production process of concrete and cement products, the products can meet the requirements of design performances only by normal pressure steam maintenance without high pressure steam maintenance, thus the time from semi-finished product formation to finished product formation is shortened, and the production efficiency is raised. Simultaneously by adding the active synergist of the invention in the products, the endurance qualities of the products in the aspects of sulphate attack, chloride ion penetration, frost resistance and the like can be raised. The application of the active synergist of the invention in the concrete and cement products can bring great economic benefits and social benefits.

Description

technical field [0001] The invention mainly relates to the field of building materials such as concrete and cement products. Background technique [0002] Concrete and cement products are one of the most widely used building materials in construction, bridges, roads and other projects. They play the role of beautifying the environment and structural support in the living space of human beings. Cement products include various decorative materials, interior and exterior wall materials, etc. Cement prefabricated components include PHC concrete piles widely used in pile foundation engineering, and structural components of various bridges and railways. It can be seen that it has a wide range of uses and a great effect. [0003] In the production process of concrete and cement products, it is necessary to go through the curing process under certain conditions. According to different production conditions and customer needs, there are mainly the following maintenance methods: 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B24/12C04B22/10C04B22/08C04B22/06C04B18/08C04B18/14C04B14/04
CPCY02W30/91
Inventor 苟德胜李斌斌
Owner JIANHUA CONSTR MATERIALS (JIANGSU) CO LTD
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