Composite thermal insulation mortar initiated by soluble phosphate and preparation method thereof

A technology of composite thermal insulation mortar and phosphate, which is applied in the field of thermal insulation materials to achieve the effects of improving fluidity, avoiding hollowing, and good thermal insulation

Pending Publication Date: 2020-12-08
QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a composite thermal insulation mortar induced by soluble phosphate and its preparation method in view of the many deficiencies in the mortar with EPS aggregate and expanded perlite as aggregate in the prior art.

Method used

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  • Composite thermal insulation mortar initiated by soluble phosphate and preparation method thereof
  • Composite thermal insulation mortar initiated by soluble phosphate and preparation method thereof
  • Composite thermal insulation mortar initiated by soluble phosphate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]A kind of composite insulation mortar initiated with soluble phosphate, comprising the components of the following mass fractions: 30 parts of caustic dolomite powder, soluble phosphate (H 3 PO 4 ) 1 part, 25 parts of fly ash, 3 parts of magnesium cement layer-EPS particles, the magnesium cement layer in the magnesium cement layer-EPS particles is magnesium oxychloride cement layer, 40 parts of magnesium salt salt crystal filled expanded perlite, magnesium salt salt The magnesium salt salt crystal in crystal-filled expanded perlite is magnesium chloride salt crystal, and 1 part of glass fiber;

[0044] Prepared by the following steps:

[0045] Step 1, dissolving magnesium chloride with water to form a saturated magnesium chloride solution;

[0046] Step 2, soak the expanded perlite in the magnesium chloride solution for 2 hours, then dry the water to form magnesium chloride salt crystals to fill the expanded perlite;

[0047] Step 3: Soak the EPS particles in magnesiu...

Embodiment 2

[0051] A kind of composite thermal insulation mortar initiated with soluble phosphate, comprising the following components in parts by mass: 35 parts of lightly burned magnesia powder, soluble phosphate (KH 2 PO 4 ) 1.5 parts, 20 parts of fly ash, 8 parts of magnesium cement layer-EPS particles, the magnesium cement layer in the magnesium cement layer-EPS particles is a magnesium sulfate cement layer, 35 parts of expanded perlite filled with magnesium salt crystals, and 35 parts of magnesium salt crystals The magnesium salt salt crystals in the expanded perlite are magnesium sulfate salt crystals, and 0.5 parts of glass fiber;

[0052] Prepared by:

[0053] Step 1, magnesium sulfate is dissolved in water to form a saturated magnesium sulfate solution;

[0054] Step 2, soak the expanded perlite in magnesium sulfate solution for 2 hours, then dry the water to form magnesium salt crystals to fill the expanded perlite, and the magnesium salt crystals are magnesium sulfate salt c...

Embodiment 3

[0059] Others are consistent with Examples 1 and 2, except that the magnesium cement layer-EPS particles in step 3 are prepared by the following method by utilizing the coating system:

[0060] The coating system includes a stirring device a, an immersion device b, a water removal device c, and a coating device d connected in sequence, wherein:

[0061] The stirring device a includes a stirring tank 1 and a stirring mechanism 2 arranged in the stirring tank 1, the top of the stirring tank 1 is provided with a feeding mechanism, and the discharge port 3 of the charging mechanism is located in the stirring tank 1 Close to the bottom position, the top of the stirring tank 1 is provided with a discharge port 13;

[0062] The immersion device b includes a immersion pool 4, the inlet of the immersion pool 4 communicates with the discharge port 13, and the immersion pool 4 is also provided with a discharge port 14;

[0063] The water removal device c includes a water removal tank 6 ...

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Abstract

The invention discloses composite thermal insulation mortar initiated by soluble phosphate and a preparation method of the composite thermal insulation mortar. The composite thermal insulation mortarcomprises the following components in parts by mass: 1-10 parts of soluble phosphate, 20-70 parts of active magnesium oxide powder, 5-55 parts of fly ash, 2-10 parts of magnesium cement layer EPS particles and 10-70 parts of magnesium salt crystal filled expanded perlite. The magnesium cement layer EPS particles comprise EPS particles and a magnesium cement layer coating the EPS particles, and themagnesium cement layer is a magnesium oxychloride cement layer or a magnesium sulfate cement layer; the expanded perlite filled with the magnesium salt crystals comprises expanded perlite and the magnesium salt crystals filled in open pores of the expanded perlite, and the magnesium salt crystals are magnesium chloride salt crystals or magnesium sulfate salt crystals. During construction, in themixing process of the thermal insulation mortar and water, the soluble phosphate is subjected to hydrothermal reaction to release heat, the reaction process of the magnesium cement is accelerated, andthe construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a composite thermal insulation mortar triggered by soluble phosphate and a preparation method thereof. Background technique [0002] New building energy-saving materials have always been a research hotspot at home and abroad. Due to the advantages of low cost, simple construction, and good thermal insulation performance, thermal insulation mortar has become a widely used external wall thermal insulation material in recent years. Building insulation mortar refers to the insulation material made of inorganic mineral materials or organic materials with low thermal conductivity as lightweight aggregate, mixed with cementitious materials, admixtures, etc. It can be directly applied to the surface of the wall, and has the advantages of light weight and good thermal insulation performance. As a new type of thermal insulation material, building thermal insulation mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10C04B20/10C04B20/02C04B16/08C04B14/18C04B111/28
CPCC04B14/185C04B16/08C04B20/023C04B20/1077C04B28/10C04B2111/28C04B22/16C04B18/08
Inventor 郑卫新文静安生霞常成功肖学英董金美
Owner QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
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