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Water glass refractory concrete and preparation method thereof

A technology of refractory concrete and water glass, applied in the field of concrete, can solve the problems of poor refractory effect and achieve the effect of simple steps

Inactive Publication Date: 2016-03-02
ANHUI WUHU FLY QI CEMENT PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the current rapid housing development of my country's real estate industry, the demand for concrete is also increasing, and at the same time, more and more attention is paid to various properties of concrete. Existing refractory concrete is usually obtained by modifying ordinary concrete. poor effect

Method used

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Examples

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Effect test

preparation example Construction

[0014] The invention provides a preparation method of water glass refractory concrete, the method comprises:

[0015] 1) mixing sodium fluorosilicate, first-grade magnesia, second-grade magnesia, magnesium chloride and rare earth metal oxide to obtain the operation of the initial concrete material;

[0016] 2) mixing the concrete initial material with water glass and water to make a concrete slurry process;

[0017] 3) curing the concrete slurry at 15-30° C. for 3-4 days to obtain an initial concrete product, wherein the curing of the concrete is to gradually condense the concrete itself through hydration after the concrete is poured and smashed. The process of hardening to make it stronger;

[0018] 4) the process of baking the first concrete product at 30-700 ° C for 20-25 hours to obtain water glass refractory concrete;

[0019] Wherein, the first-grade magnesia is magnesia with a particle size of 5-10 mm, and the second-grade magnesia is magnesia with a particle size of ...

Embodiment 1

[0031] 1) At 20°C, first-grade magnesia and second-grade magnesia were spread to a thickness of 8 cm and moistened with water, then covered with a moist cover and allowed to stand at 20°C for 5 d.

[0032] 2) Dry sodium fluorosilicate, first-grade magnesia, second-grade magnesia, magnesium chloride and rare earth metal oxides at 100° C. for 2 hours, respectively, so that sodium fluorosilicate, first-grade magnesia, second-grade magnesia, magnesium chloride The moisture content of the rare earth metal oxide is 0.3% by weight.

[0033] 3) Mix the dried 170kg of first-grade magnesia with 550kg of second-grade magnesia, 13kg of sodium fluorosilicate, 50kg of magnesium chloride and 0.2kg of cerium oxide for 3 minutes to prepare the initial concrete material.

[0034] 4) Add 100kg of water glass and 70kg of water to the initial concrete material and mix for 8 minutes to prepare concrete slurry.

[0035] 5) Curing the concrete slurry at 25°C for 3 d to obtain the initial concrete pr...

Embodiment 2

[0040] 1) At 20°C, first-grade magnesia and second-grade magnesia were spread to a thickness of 5 cm and moistened with water, then covered with a moist cover and allowed to stand at 15°C for 5d.

[0041] 2) Dry sodium fluorosilicate, first-grade magnesia, second-grade magnesia, magnesium chloride and rare earth metal oxides at 100° C. for 2 hours, respectively, so that sodium fluorosilicate, first-grade magnesia, second-grade magnesia, magnesium chloride The moisture content of the rare earth metal oxide is 0.5% by weight.

[0042] 3) Mix the dried 150kg of first-grade magnesia with 500kg of second-grade magnesia, 12kg of sodium fluorosilicate, 35kg of magnesium chloride and 0.1kg of cerium oxide for 2 minutes to obtain the initial concrete material.

[0043] 4) Add 100kg of water glass and 55kg of water to the initial concrete material and mix for 5 minutes to prepare concrete slurry.

[0044] 5) Curing the concrete slurry at 15°C for 3 d to obtain a preliminary concrete prod...

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PUM

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Abstract

The invention discloses water glass refractory concrete and a preparation method thereof. The method comprises the following steps of (1) mixing sodium fluosilicate, first-grade magnesium sand, second-grade magnesium sand, magnesium chloride and rare-earth metal oxide to prepare a primary concrete material; (2) mixing the primary concrete material, water glass and a water phase to prepare concrete slurry; (3) curing the concrete slurry at the temperature of 15-30 DEG C for 3-4 days to prepare a primary concrete product; and (4) baking the primary concrete product at the temperature of 30-700 DEG C for 20-25 hours to prepare the water glass refractory concrete. The water glass refractory concrete is excellent in fire resistance and mechanical property.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a water glass refractory concrete and a preparation method of the concrete. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. The term concrete usually refers to cement concrete, which is made of cement as cementitious material, sand and stone as aggregate and water (which may contain admixtures and admixtures) in a certain proportion, and is also called ordinary concrete. , it is widely used in civil engineering. With the current rapid housing exhibition in my country's real estate industry, the demand for concrete is also increasing, and at the same time, more and more attention is paid to various properties of concrete. Existing refractory concrete is usually obtained by modifying ordinary concrete. poor effect. SUMMARY OF THE INVENTION [0003] The purpose of the pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B111/28
Inventor 朱琪
Owner ANHUI WUHU FLY QI CEMENT PROD
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