A kind of preparation method of 400 ℃ heat-resistant gel material

A technology of heat-resistant glue and grinding body, which is applied in the field of building materials, can solve the problems of high price, non-use and promotion, etc.

Active Publication Date: 2021-01-12
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The price is more expensive, do not take advantage of the promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Put 150 parts of blast furnace slag, 300 parts of zirconia grinding body, 75 parts of tap water, 1 part of polycarboxylic acid dispersant, and 0.3 part of ion solubilizer into a ball mill jar and seal it, grind for 40 minutes, remove the grinding body, and obtain a median particle size of Add 15 parts of cement to 2.8 μm slurry to get 400°C heat-resistant cementitious material.

[0020] The ratio of grinding bodies put in the grinding tank is 8mm:3mm:1mm:0.8mm=2:4:4:5.

[0021] The ionic solubilizer is prepared from 0.1 part of triethanolamine and 0.2 part of triisopropanolamine.

[0022] Refer to "Cement Mortar Strength Test Method (ISO Method)" GB / T 17671-2005 to prepare mortar test, mix and stir 450 grams of 400 °C heat-resistant cementitious material obtained in this example with 1350 grams of sand and 225 grams of water. After curing for 56 days: the measured compressive strength is 45.2MPa; 400°C constant temperature heat curing for 3h, the measured compressive s...

Embodiment 2

[0024] Put 250 parts of blast furnace slag, 750 parts of zirconia grinding body, 125 parts of tap water, 3 parts of polycarboxylic acid dispersant, and 0.6 parts of ion solubilizer into a ball mill jar, seal it, grind for 60 minutes, remove the grinding body, and obtain the median particle size To 2.2 μm slurry, add 20 parts of cement to obtain 400°C heat-resistant cementitious material.

[0025] The ratio of grinding bodies put in the grinding tank is 8mm:3mm:1mm:0.8mm=2:4:4:5.

[0026] The ionic solubilizer is prepared from 0.2 part of triethanolamine and 0.4 part of triisopropanolamine.

[0027] Refer to "Cement Mortar Strength Test Method (ISO Method)" GB / T 17671-2005 to prepare mortar test, mix and stir 450 grams of 400°C heat-resistant cementitious material obtained in this example with 1350 grams of sand and 225 grams of water, After standard curing for 56 days: the measured compressive strength is 46.7MPa; 400°C constant temperature heat curing for 3 hours, the measur...

Embodiment 3

[0029] Put 150 parts of blast furnace slag, 400 parts of zirconia grinding body, 100 parts of tap water, 1.2 parts of polypropylene dispersant, and 0.6 part of ion solubilizer into a ball mill jar, seal it, grind for 50 minutes, remove the grinding body, and obtain a median particle size of Add 30 parts of cement to the 2.6 μm slurry to obtain a 400°C heat-resistant cementitious material.

[0030] The ratio of grinding bodies put in the grinding tank is 8mm:3mm:1mm:0.8mm=2:4:4:5.

[0031] The ionic solubilizer is prepared from 0.4 part of triethanolamine and 0.2 part of triisopropanolamine.

[0032] Refer to "Cement Mortar Strength Test Method (ISO Method)" GB / T 17671-2005 to prepare mortar test, mix and stir 450 grams of 400 °C heat-resistant cementitious material obtained in this example with 1350 grams of sand and 225 grams of water. After 56 days of curing: the measured compressive strength is 44.5 MPa; 3 hours of constant temperature and heat curing at 400°C, the measure...

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Abstract

The invention discloses a preparation method of a 400-DEG C heat-resistant binding material, comprising the following steps: placing blast furnace slag, a zirconia grinding body, tap water, a dispersing agent and an ion dissolution-promoting agent in a ball mill tank, sealing, grinding, and removing the grinding body to obtain slurry with the median particle diameter of 2.2 to 2.8 mum, and adding15 to 50 parts of cement into the slurry to obtain the 400-DEG C heat-resistant binding material. Wet grinding is utilized to prepare the ultrafine granulated blast furnace slag, the cement is utilized to stimulate the activity of the blast furnace slag, and the ion dissolution-promoting agent is utilized to promote dissolution of elements such as calcium, silicon and aluminum during wet grinding,and then the formation of a hydrotalcite hydration product is promoted, so as to significantly improve the thermal stability of the hydration product. After the heat-resistant binding material is subjected to standard curing for 56 d, and then subjected to heat curing at a constant temperature of 400 DEG C for 3 h, the strength loss rate is less than 10 percent. The 400-DEG C heat-resistant binding material can be widely used in 400-DEG C heat-resistant concrete.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a preparation method of a 400°C heat-resistant gel material. Background technique [0002] How to effectively solve the fire resistance and heat resistance of buildings is a problem that everyone cares about. Heat-resistant concrete is a special concrete that can withstand high temperature (above 200°C) for a long time and maintain the required physical and mechanical properties under high temperature. According to the different binders used, heat-resistant concrete can be divided into: silicate heat-resistant concrete, aluminate heat-resistant concrete, phosphate heat-resistant concrete, sulfate heat-resistant concrete, water glass heat-resistant concrete, magnesium cement Heat-resistant concrete and other binder heat-resistant concrete. A large number of studies have shown that the degradation of ordinary concrete under high temperature heating includes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/763C04B2201/50C04B18/141C04B2103/408C04B24/122C04B14/06
Inventor 贺行洋郑正旗谭洪波苏英杨进王迎斌李佳伟胡华超江友志
Owner HUBEI UNIV OF TECH
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