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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: 2015-01-07
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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preparation example Construction

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

[0015] 1) The process of mixing sodium fluorosilicate, first-grade magnesia, second-grade magnesia, magnesium chloride and rare earth metal oxides to prepare the primary concrete material;

[0016] 2) mixing the concrete primary material with water glass and water to prepare the concrete slurry process;

[0017] 3) The process of curing the concrete slurry at 15-30°C for 3-4 days to obtain the primary concrete product, wherein the curing of the concrete is to allow the concrete itself to gradually condense through hydration after the concrete is poured and tamped The process of hardening so that it grows in strength;

[0018] 4) The process of baking the primary 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-...

Embodiment 1

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

[0032] 2) Dry sodium fluorosilicate, primary magnesia, secondary magnesia, magnesium chloride and rare earth metal oxides at 100°C for 2 hours, so that sodium fluorosilicate, primary magnesia, secondary magnesia, and magnesium chloride And the water content of the rare earth metal oxide is 0.3% by weight.

[0033] 3) Mix 170kg of first-grade magnesia, 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 primary concrete material.

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

[0035] 5) Curing the concrete slurry at 25°C for 3 days to obtain a primary concrete product.

[0036] 6) Raise the temperature of the pr...

Embodiment 2

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

[0041] 2) Dry sodium fluorosilicate, primary magnesia, secondary magnesia, magnesium chloride and rare earth metal oxides at 100°C for 2 hours, so that sodium fluorosilicate, primary magnesia, secondary magnesia, and magnesium chloride And the water content of the rare earth metal oxide is 0.5% by weight.

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

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

[0044] 5) Curing the concrete slurry at 15°C for 3 days to obtain the primary concrete product.

[0045] 6) Raise the tempe...

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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 the cement concrete obtained by mixing cement with cement as cementing material, sand and stone as aggregate and water (may contain admixtures and admixtures) in a certain proportion, also known as ordinary concrete. , which is widely used in civil engineering. 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. Contents of the invention [0003] The object of ...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B111/28
Inventor 朱琪
Owner ANHUI WUHU FLY QI CEMENT PROD
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