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A kind of refractory concrete and preparation method thereof

A technology of refractory concrete and mass parts, applied in the field of concrete, can solve the problems of poor refractory effect, easy cracking, low concrete strength, etc., and achieve the effect of increasing mechanical properties, increasing refractory performance, and excellent high temperature resistance

Active Publication Date: 2021-03-26
JINLING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the rapid development of my country's real estate industry, the demand for concrete is also increasing. At the same time, more and more attention is paid to the various properties of concrete. Refractory concrete is produced from this. The refractory concrete sold on the market has a fire-resistant effect. Poor, the strength of concrete is low, easy to crack

Method used

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  • A kind of refractory concrete and preparation method thereof
  • A kind of refractory concrete and preparation method thereof
  • A kind of refractory concrete and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A kind of refractory concrete, its composition by mass is as follows: 20 parts of aluminate cement, 10 parts of aluminate cement, 6 parts of potassium silicate, 15 parts of reinforcing fiber, 6 parts of melamine-based water reducer, high alumina clinker 10 parts of powder, 10 parts of calcined metakaolin, 10 parts of 30% wt NaOH solution, 3 parts of aluminum hydroxide, 3 parts of magnesium hydroxide, 5 parts of regenerated cellulose film, 2 parts of modified polyethylene glycol, and 50 parts of water.

[0025] Among them, the reinforced fiber is a mixture of modified carbon fiber cloth and steel fiber, and its volume ratio is 2:1.

[0026] Among them, the modified carbon fiber cloth is made of modified carbon fiber, and the modified carbon fiber is made by the following preparation method:

[0027] (1) Grinding: first place organic short carbon fibers with a length of 60-80 microns in a grinder, and grind them for 48 hours under the action of a grinding medium, so that ...

Embodiment 2

[0039] A kind of refractory concrete, its composition by mass is as follows: 30 parts of aluminate cement, 12 parts of aluminate cement, 7 parts of potassium silicate, 18 parts of reinforcing fiber, 9 parts of melamine-based water reducer, high alumina clinker 15 parts of powder, 15 parts of calcined metakaolin, 12 parts of 30% wt NaOH solution, 4 parts of aluminum hydroxide, 6 parts of magnesium hydroxide, 8 parts of regenerated cellulose film, 6 parts of modified polyethylene glycol, and 70 parts of water.

[0040] Among them, the reinforced fiber is a mixture of modified carbon fiber cloth and steel fiber, and its volume ratio is 3.5:1.

[0041] Among them, the modified carbon fiber cloth is made of modified carbon fiber, and the modified carbon fiber is made by the following preparation method:

[0042] (1) Grinding: first place organic short carbon fibers with a length of 60-80 microns in a grinder, and grind them for 48 hours under the action of a grinding medium, so tha...

Embodiment 3

[0054] A kind of refractory concrete, its composition by mass is as follows: 40 parts of aluminate cement, 15 parts of aluminate cement, 8 parts of potassium silicate, 20 parts of reinforcing fiber, 12 parts of melamine-based water reducer, high alumina clinker 20 parts of powder, 20 parts of calcined metakaolin, 15 parts of 30% wt NaOH solution, 6 parts of aluminum hydroxide, 8 parts of magnesium hydroxide, 12 parts of regenerated cellulose film, 10 parts of modified polyethylene glycol, and 80 parts of water.

[0055] Among them, the reinforced fiber is a mixture of modified carbon fiber cloth and steel fiber, and its volume ratio is 5:1.

[0056] Among them, the modified carbon fiber cloth is made of modified carbon fiber, and the modified carbon fiber is made by the following preparation method:

[0057] (1) Grinding: first place organic short carbon fibers with a length of 60-80 microns in a grinder, and grind them for 48 hours under the action of a grinding medium, so that...

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Abstract

The invention relates to the technical field of concrete, in particular to fireproof concrete and a preparation method thereof. The fireproof concrete is prepared from the following ingredients in parts by mass: 20 to 40 parts of aluminate cement, 10 to 15 parts of aluminate cement, 6 to 8 parts of potash water glass, 15 to 20 parts of reinforced fiber, 6 to 12 parts of melamine water reducing agents, 10 to 20 parts of high aluminum clinker powder, 10 to 20 parts of calcined metakaolin, 10 to 15 parts of NaOH solution, 3 to 6 parts of aluminum hydroxide, 3 to 8 parts of magnesium hydrate, 5 to12 parts of regenerated cellulose membrane, 2 to 10 parts of modified polyethylene glycol and 50 to 80 parts of water. The fireproof index of the fireproof concrete is superior to that of conventional concrete; the fireproof concrete is mutually matched with high aluminum clinker powder and calcined metakaolin; the fireproof performance of the fireproof concrete can be greatly enhanced; in addition, the mechanical performance of the fireproof concrete under the heated condition can be improved; the concrete collapse can be prevented.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a refractory concrete and a preparation method thereof. Background technique [0002] Unshaped refractory materials that are prepared by adding water or other liquids to refractory aggregates, powders and cement materials, and used directly without calcination, are also called refractory pouring materials. Refractory concrete is a non-fired product. The production process is simple, energy saving, and can be shaped according to needs. The integrity is better than that of brick furnace lining. It is suitable for mechanized construction and can often prolong the life of furnace lining when used reasonably. The cement used in refractory concrete includes high alumina cement, phosphate cement, water glass cement, clay and so on. Refractory concrete is mainly used in metallurgy, petroleum, chemical industry, building materials, machinery and other industrial kilns. Refractory concr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2111/28C04B12/04C04B14/386C04B14/48C04B14/106C04B2103/302C04B22/062C04B22/06C04B22/066C04B18/26C04B24/26
Inventor 贾微
Owner JINLING INST OF TECH