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Thermal insulation mortar taking magnesium phosphate cement layer-EPS and phosphate-expanded perlite as aggregate and preparation method

A technology of magnesium phosphate cement and expanded perlite, which is applied in the field of thermal insulation materials to achieve the effects of not easy to agglomerate, easy to store, and to save adhesives

Pending Publication Date: 2020-12-04
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

[0005] The purpose of the present invention is to provide a kind of magnesium phosphate cement layer-EPS and phosphate-expanded perlite as the mortar that all exists many deficiencies in the mortar that exists in the prior art as aggregate and expanded perlite. Aggregate Insulation Mortar

Method used

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  • Thermal insulation mortar taking magnesium phosphate cement layer-EPS and phosphate-expanded perlite as aggregate and preparation method
  • Thermal insulation mortar taking magnesium phosphate cement layer-EPS and phosphate-expanded perlite as aggregate and preparation method
  • Thermal insulation mortar taking magnesium phosphate cement layer-EPS and phosphate-expanded perlite as aggregate and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A thermal insulation mortar with magnesium cement layer-EPS particles and magnesium salt-expanded perlite as aggregates, including the following components in parts by mass: 35 parts of dead-burned magnesium oxide, 15 parts of fly ash, magnesium cement layer-EPS 9 parts of granules, 40 parts of salt-filled expanded perlite, and 1 part of glass fiber;

[0060] Prepared by:

[0061] Step 1, the NH 4 h 2 PO 4 Grind to less than 0.125mm NH 4 h 2 PO 4 powder;

[0062] Step 2, the NH 4 h 2 PO 4 The powder is mixed with expanded perlite, and then passed through a 1mm sieve to screen out the rich NH 4 h 2 PO 4 Powdered expanded perlite;

[0063] Step 3, the NH 4 h 2 PO 4 Add water to dissolve to form a saturated solution, put the EPS particles into the saturated solution and soak for 0.5h-4h, then remove the EPS particles and roll them in inactive magnesia to make the surface contaminated solution react with the re-burned magnesia to form a coating layer of magn...

Embodiment 2

[0067] A thermal insulation mortar with magnesium cement layer-EPS particles and magnesium salt-expanded perlite as aggregates, including the following components in parts by mass: 60 parts of dead-burned magnesium oxide, 20 parts of fly ash, magnesium cement layer-EPS 2 parts of granules, 10 parts of salt-filled expanded perlite, 8 parts of glass fiber;

[0068] Prepared by:

[0069] Step 1, the KH 2 PO 4 Grind to less than 0.125mm NH 4 h 2 PO 4 powder;

[0070] Step 2, the KH 2 PO 4 The powder is mixed with expanded perlite, and then passed through a 1mm sieve to screen out the rich KH 2 PO 4 Powdered expanded perlite;

[0071] Step 3, add EPS particles to water to fully wet, NH 4 h 2 PO 4 Add water to dissolve to form a saturated solution, put the granules into the saturated solution and soak for 0.5h-4h, then remove the EPS granules and roll them in the inactive magnesia to make the surface stained solution react with the reburned magnesia to form a coating la...

Embodiment 3

[0075] Others are consistent with Example 1, except that the magnesium cement layer-EPS particles in step 3 are prepared by using the coating system through the following method:

[0076] 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:

[0077] 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;

[0078] 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;

[0079] The water removal device c includes a water removal tank 6 and a ...

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Abstract

The invention discloses thermal insulation mortar taking magnesium phosphate cement layer-EPS and phosphate-expanded perlite as aggregates and a preparation method. The thermal insulation mortar comprises the following components in parts by mass: 20-70 parts of inactive magnesium oxide powder, 5-55 parts of fly ash, 2-10 parts of magnesium phosphate cement layer-EPS particles, and 10-70 parts ofphosphate-filled expanded perlite, wherein the magnesium phosphate cement layer-EPS particles comprise EPS particles and a magnesium phosphate cement layer coating the EPS particles, and the phosphate-filled expanded perlite comprises expanded perlite and phosphate fine powder packed in open pores of the expanded perlite. The problem of use of a binder can be solved, and the fluidity and workability of the thermal insulation mortar are improved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a thermal insulation mortar with magnesium phosphate cement layer-EPS and phosphate-expanded perlite as aggregates 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 by mixing inorganic mineral materials or organic materials with low thermal conductivity as lightweight aggregates with cementitious materials and admixtures. 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 insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/34C04B14/18C04B16/08C04B20/02C04B20/10C04B111/34C04B111/40
CPCC04B14/185C04B16/08C04B20/02C04B20/1077C04B28/34C04B2111/00431C04B2111/343C04B2111/40C04B2201/32C04B22/066C04B18/08C04B14/42
Inventor 董金美郑卫新常成功肖学英安生霞文静
Owner QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
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