CN103396077A - Crack-resistant thermal insulation mortar - Google Patents

Abstract

The invention discloses a crack-resistant thermal insulation mortar. The crack-resistant thermal insulation mortar is prepared from the following raw materials in parts by weight: 50-60 parts of calcined desulfurated gypsum powder, 5-8 parts of volcanic rock powder, 5-8 parts of styrene-acrylic emulsion, 0.1-0.3 part of polyvinyl alcohol, 0.01-0.02 part of citric acid, 15-18 parts of modified nanometer bentonite, 400-500 parts of white cement, 20-50 parts of river sands, 10-20 parts of lime stone powder, 1-2 parts of hydroxypropyl methyl, 40-50 parts of glass beads, and proper amount of water.

Description

A kind of anti-cracking heat insulation mortar

Technical field

The present invention relates to the thermal insulation mortar field, is exactly a kind of anti-cracking heat insulation mortar.

Background technology

Thermal insulation mortar is take various light materials as aggregate,, take cement as gelating material, admixes some property-modifying additives, through manufacturing enterprise, is uniformly mixed and a kind of premixing dry-mix of making.Be mainly used in building exterior wall heat preserving, have the advantages such as easy construction, good endurance.

Summary of the invention

The object of the present invention is to provide a kind of anti-cracking heat insulation mortar

Above-mentioned purpose realizes by following scheme:

A kind of anti-cracking heat insulation mortar; it is characterized in that: it is that raw material by following weight parts makes: calcining desulfurization gypsum powder 50-60, volcano rock dust 5-8, benzene emulsion 5-8; polyvinyl alcohol 0.1-0.3, citric acid 0.01-0.02, modified Nano wilkinite 15-18; white cement 400-500; river sand 20-50, limestone powder 10-20, Vltra tears 1-2; glass bead 40-50, suitable quantity of water.

Described a kind of anti-cracking heat insulation mortar is characterized in that:

The preparation method is:

(1) with wilkinite under 300-400 ℃ the calcining 3-4 hour after, putting into concentration is the hydrochloric acid soln immersion 3-4 hour of 5-8% again, take out, oven dry, add the dibutyl ester that is equivalent to its weight 0.5-0.8%, the nano-sized carbon of 0.1-0.2%, the titanate coupling agent YDH-201 of 1-2%, and appropriate water, after stirring 10-15 minute under 100-200 rev/min, take out oven dry, after grinding to form nanometer powder, obtain the modified Nano wilkinite standby;

(2) white cement and calcining desulfurization gypsum powder, volcano rock dust, benzene emulsion are mixed, under room temperature, stir 20-30 minute under 100-200 rev/min;

(3) add by weight again surplus stock, stir 5-8 minute under 25-30 ℃, obtain.

Beneficial effect of the present invention is:

The present invention is by the improvement to the thermal insulation mortar component, make its cohesiveness good by adding the compositions such as modified Nano wilkinite, benzene emulsion, intensity enhancing, had extraordinary resistance to cleavage, and have good workability, for having brought significant progress in modern architecture energy-saving material field.

Cohesive strength of the present invention is high, and early strength improves fast, obviously is better than the thermal insulation mortar that common perlite is aglite, improves operating efficiency.

Embodiment

A kind of anti-cracking heat insulation mortar; it is that raw material by following weight parts (kg) makes: calcining desulfurization gypsum powder 60, volcano rock dust 8, benzene emulsion 8; polyvinyl alcohol 0.3, citric acid 0.02, modified Nano wilkinite 18; white cement 500; river sand 50, limestone powder 20, Vltra tears 2; glass bead 50, suitable quantity of water.

Described a kind of anti-cracking heat insulation mortar, the preparation method is:

1) with wilkinite under 400 ℃ the calcining 4 hours after, putting into concentration again and be 8% hydrochloric acid soln soaked 4 hours, take out, oven dry, add the dibutyl ester that is equivalent to its weight 0.8%, 0.2% nano-sized carbon, 2% titanate coupling agent YDH-201, and appropriate water, after stirring 15 minutes under 200 rev/mins, take out oven dry, after grinding to form nanometer powder, obtain the modified Nano wilkinite standby;

(2) white cement and calcining desulfurization gypsum powder, volcano rock dust, benzene emulsion are mixed, under room temperature, stirred 30 minutes under 200 rev/mins;

(3) add by weight again surplus stock, stirred 8 minutes under 30 ℃, obtain.

The products obtained therefrom test result is as follows:

Claims (2)

1. anti-cracking heat insulation mortar; it is characterized in that: it is that raw material by following weight parts makes: calcining desulfurization gypsum powder 50-60, volcano rock dust 5-8, benzene emulsion 5-8; polyvinyl alcohol 0.1-0.3, citric acid 0.01-0.02, modified Nano wilkinite 15-18; white cement 400-500; river sand 20-50, limestone powder 10-20, Vltra tears 1-2; glass bead 40-50, suitable quantity of water.

2. a kind of anti-cracking heat insulation mortar according to claim 1 is characterized in that:

The preparation method is:

(1) with wilkinite under 300-400 ℃ the calcining 3-4 hour after, putting into concentration is the hydrochloric acid soln immersion 3-4 hour of 5-8% again, take out, oven dry, add the dibutyl ester that is equivalent to its weight 0.5-0.8%, the nano-sized carbon of 0.1-0.2%, the titanate coupling agent YDH-201 of 1-2%, and appropriate water, after stirring 10-15 minute under 100-200 rev/min, take out oven dry, after grinding to form nanometer powder, obtain the modified Nano wilkinite standby;

(2) white cement and calcining desulfurization gypsum powder, volcano rock dust, benzene emulsion are mixed, under room temperature, stir 20-30 minute under 100-200 rev/min;

(3) add by weight again surplus stock, stir 5-8 minute under 25-30 ℃, obtain.