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A kind of preparation method of thermal insulation mortar

A thermal insulation mortar and calcination technology, which is applied in the field of mortar, can solve the problems of high water absorption and low strength of thermal insulation mortar, and achieve the effects of low water absorption, high strength and increased strength

Active Publication Date: 2021-09-17
贵州皓科新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the current thermal insulation mortar has low strength and high water absorption rate, and needs to add an anti-crack protective layer to meet the requirements of building use, the present invention provides a preparation method of thermal insulation mortar

Method used

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  • A kind of preparation method of thermal insulation mortar

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preparation example Construction

[0020] A preparation method of thermal insulation mortar, the preparation method comprises the steps of:

[0021] (1) Take the waste clay and put it into a calciner for calcination at 1200°C for 50 minutes, collect the calcined particles, put the calcined particles and aluminum ash in a ball mill at a mass ratio of 6:2 to 4, and perform ball milling at 800r / min for 1 hour, collect the ball mill Put the ball mill and 1.3mol / L sodium hydroxide solution into the container at a mass ratio of 1:5, and ultrasonically vibrate, heat to 65°C, and heat for 3h;

[0022] (2) After the heating is over, let it stand overnight, then add calcined particles of 15-20% silica to the container, mix well, put the contents in the container into the reaction kettle, use nitrogen protection, at 80-85°C Preheat under low temperature, add an additive solution with 5-7% silica mass, raise the temperature to 120-150°C, and stir for 4-7 hours;

[0023] (3) After stirring, cool to room temperature, discha...

Embodiment 1

[0027] The additive solution was prepared by mixing sodium dodecylbenzenesulfonate and 0.1mol / L chitosan glacial acetic acid solution at a mass ratio of 1:3.

[0028] The choice of air-entraining agent is abietic acid.

[0029] The choice of hydrophobic agent is N-12.-aminoethyl 3-aminopropyltrimethoxysilane.

[0030] A preparation method of thermal insulation mortar, the preparation method comprises the steps of:

[0031] (1) Take the waste clay and put it into a calciner for calcination at 1200°C for 50 minutes, collect the calcined particles, put the calcined particles and aluminum ash in a ball mill at 800r / min for 1 hour at a mass ratio of 6:4, and collect the ball milled matter. Put the ball mill and 1.3mol / L sodium hydroxide solution into the container at a mass ratio of 1:5, and conduct ultrasonic vibration, heat to 65°C, and heat for 3h;

[0032] (2) After the heating is over, let it stand overnight, then add calcined particles of 20% silica to the container, mix we...

Embodiment 2

[0037] The additive solution was prepared by mixing sodium dodecylbenzenesulfonate and 0.1mol / L chitosan glacial acetic acid solution at a mass ratio of 1:3.

[0038] The choice of air-entraining agent is sodium alkylbenzene sulfonate.

[0039] The choice of hydrophobic agent is N-12.-aminoethyl 3-aminopropyltrimethoxysilane.

[0040] A preparation method of thermal insulation mortar, the preparation method comprises the steps of:

[0041] (1) Take the waste clay and put it into a calciner for calcination at 1200°C for 50 minutes, collect the calcined particles, put the calcined particles and aluminum ash in a ball mill at a mass ratio of 6:3 and perform ball milling at 800r / min for 1 hour, and collect the ball milled matter. Put the ball mill and 1.3mol / L sodium hydroxide solution into the container at a mass ratio of 1:5, and conduct ultrasonic vibration, heat to 65°C, and heat for 3h;

[0042] (2) After the heating is over, let it stand overnight, then add calcined partic...

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Abstract

The invention belongs to the field of mortar, and in particular relates to a preparation method of thermal insulation mortar. The present invention uses waste clay as a base material, removes impurities in the waste clay by high-temperature calcination, and then mixes it with aluminum ash to make it fully contact with the aluminum ash, and then oxidizes the aluminum ash and hydrogen under alkaline conditions The sodium reacts and is adsorbed in the clay, and then it is activated under the action of the additive liquid to form aluminum silicate and other substances to wrap the clay, which reduces the water absorption rate and improves the strength of the mortar, and then through kyanite Carry out high-temperature calcination to expand the kyanite, mix the expanded kyanite with the modified clay, and combine the two under the action of electric melting to improve the thermal insulation performance of the thermal insulation mortar, and reduce the The ion conductivity of kyanite, and then mixed with lime, hydroxymethyl cellulose, additives, etc., so as to prepare thermal insulation mortar with high strength, low strength and low water absorption.

Description

technical field [0001] The invention belongs to the field of mortar, and in particular relates to a preparation method of thermal insulation mortar. Background technique [0002] Insulation mortar is a kind of pre-mixed dry powder mortar made of various light materials as aggregate, cement as cement, mixed with some modified additives, and mixed by the production enterprise. A building material used to construct the thermal insulation layer of the building surface. It can be widely used in dense residential buildings, public buildings, large public places, flammable and explosive places, and places with strict fire protection requirements. It can also be used as a fire isolation zone to improve building fire protection standards. [0003] There are two main types of thermal insulation mortar on the market: inorganic thermal insulation mortar and organic thermal insulation mortar. Among them, inorganic thermal insulation mortar is a new type of thermal insulation and energy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/10
CPCC04B28/10C04B2201/20C04B2201/32C04B2201/50C04B18/023C04B7/00C04B24/383C04B24/34C04B24/42C04B24/20C04B24/085
Inventor 戴琪徐克程依
Owner 贵州皓科新型材料有限公司