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A kind of processing method of fireproof lightweight gypsum mortar

A technology of gypsum mortar and processing method, which is applied in the field of building material processing, can solve the problems of increasing wall temperature, large thermal conductivity, and poor fireproof performance, so as to slow down the transmission of wall heat, increase the amount of intermolecular voids, and improve The effect of ignition point

Active Publication Date: 2022-04-15
贵州中能高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In terms of fire prevention and heat insulation, most of the existing gypsum mortars use ordinary lime mortar, which has poor fire resistance and high thermal conductivity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] This embodiment provides a method for processing fireproof lightweight gypsum mortar, which comprises fireproof materials, modified yellow soil, and aggregate base powder mixed in a weight ratio of 6:1:10;

[0033] The specific processing steps are as follows:

[0034] a. Preparation of modified yellow soil: add the yellow soil into distilled water according to the solid-to-liquid ratio of 1:18, stir at a speed of 1000r / min for 2h, then let it settle for 24h, and the upper layer suspension is suction filtered and washed with distilled water, and so on. 3 times, after drying, add the yellow soil into the sulfuric acid solution with a volume fraction of 15% according to the solid-to-liquid ratio of 1:20, stir for 6 hours at a water bath temperature of 80°C, filter with suction, and wash until the pH value is neutral; then follow The solid-to-liquid ratio is 1:15. Add the yellow soil to the sodium chloride solution with a mass fraction of 10%, stir for 8 hours at a water b...

Embodiment 2

[0040] This embodiment provides a method for processing fireproof lightweight gypsum mortar, which comprises fireproof materials, modified yellow soil, and aggregate base powder mixed in a weight ratio of 8:1:12;

[0041] The specific processing steps are as follows:

[0042]a. Preparation of modified yellow soil: add yellow soil to distilled water according to the solid-to-liquid ratio of 1:24, stir at a speed of 1500r / min for 1h, then let it settle for 48h, and the upper layer suspension is suction filtered and washed with distilled water, and so on. 4 times, after drying, add the yellow soil into the sulfuric acid solution with a volume fraction of 15% according to the solid-to-liquid ratio of 1:25, stir for 3 hours at a water bath temperature of 90°C, filter with suction, and wash until the pH value is neutral; then follow The solid-to-liquid ratio is 1:20. Add the yellow soil to the sodium chloride solution with a mass fraction of 10%, stir for 8 hours at a water bath tem...

Embodiment 3

[0048] This embodiment provides a method for processing fireproof lightweight gypsum mortar, which comprises mixing and processing fireproof materials, modified yellow soil, and aggregate base powder at a weight ratio of 7.5:1:11;

[0049] The specific processing steps are as follows:

[0050] a. Preparation of modified yellow soil: add yellow soil to distilled water according to the solid-to-liquid ratio of 1:20, stir at a speed of 1300r / min for 1.5h, then let it settle for 36h, and the upper layer suspension is suction filtered and washed with distilled water, so Repeat 3 times, after drying, add the yellow soil into the sulfuric acid solution with a volume fraction of 15% according to the solid-to-liquid ratio of 1:22, stir for 4 hours at a water bath temperature of 85°C, filter with suction, and wash until the pH value is neutral; then According to the solid-liquid ratio of 1:18, the yellow soil was added to the sodium chloride solution with a mass fraction of 10%, stirred...

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Abstract

The invention relates to the technical field of building material processing, in particular to a processing method for fireproof lightweight gypsum mortar. The fire-resistant lightweight gypsum mortar is made by mixing fireproof materials, modified yellow soil, and aggregate base powder in a weight ratio of 6-8:1:10-12; through the preparation of modified yellow soil, the yellow The cohesiveness of the soil and the internal molecular pores increase the amount of inter-molecular voids, and then mixed with fireproof materials, and the application of film-forming aids, retarders, and film-forming aids makes the active ingredients of fireproof materials be absorbed. Completely wrapped inside the finished mortar, when the lightweight gypsum mortar gradually dries after construction, the fire-resistant component will expand inside the modified yellow soil with large gaps, greatly reducing the thermal conductivity of the lightweight gypsum mortar and improving its Increase the ignition point, increase the content of crystal water, and finally achieve the purpose of fire prevention and heat insulation.

Description

technical field [0001] The invention relates to the technical field of building material processing, in particular to a processing method for fireproof lightweight gypsum mortar. Background technique [0002] Mortar can be divided into ordinary mortar and special mortar in terms of performance and use. The raw materials used in ordinary mortar are ordinary cement, sand, mortar admixture, etc. The ratio of raw materials is relatively simple, and the performance index of ordinary mortar is difficult to meet the construction requirements of special parts. Therefore, , Special mortars with different functions have corresponding physical and chemical properties for different purposes, making up for the disadvantages of ordinary mortar in prefabricated building construction. With the development of scientific progress, special mortar includes polymer bonding mortar, thermal insulation mortar, decorative mortar, self-leveling mortar and waterproof mortar, etc. Special mortar has un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14C04B38/08C04B20/04C04B111/27C04B111/40
CPCC04B28/145C04B38/08C04B20/04C04B2111/27C04B2111/00482C04B2111/40C04B14/28C04B18/08C04B24/383C04B2103/0045C04B14/361C04B14/06C04B14/305C04B22/144C04B14/064C04B2103/0068C04B2103/22C04B24/38C04B24/06C04B24/10C04B22/16C04B20/023
Inventor 孔凡奇蔡光艳朱孜
Owner 贵州中能高新材料有限公司
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