CN104072056A - Fireproof thermal mortar - Google Patents

Abstract

The invention discloses fireproof thermal mortar which consists of the following raw materials in parts by weight: 30-50 parts of 42.5 ordinary Portland cement, 10-15 parts of acetylene sludge, 8-10 parts of emery powder, 20-30 parts of gravel scrap, 5-10 parts of bauxite, 15-20 parts of glass bead, 4-6 parts of polyacrylamide, 3-5 parts of sodium alga acid, 2-3 parts of polyethylene glycol, 1-2 parts of alumina silicate fiber, 1.5-2.5 parts of nanometer magnesia, 1-2 parts of mirabilite, 2-3 parts of alums and 3-6 parts of composite filler. The thermal mortar is excellent in fireproof performance, the flame retardancy reaches level A, harmful gases are not generated at high temperature, and the thermal mortar is completely environmental friendly, has the performances of excellent heat insulation, adhesiveness, ageing resistance, weather resistance, resistance to acid and base and cracking resistance, is low in cost, convenient to use, stable in performance, high in compressive strength, high in construction property and durable and is not cracked, hollowed or pulverized.

Description

Fireproof heat insulating mortar

Technical field

The present invention relates to a kind of fireproof heat insulating mortar, belong to building material field.

Background technology

Thermal insulation mortar is taking various light materials as aggregate, taking cement as gelating material, admixes some property-modifying additives, is uniformly mixed and a kind of premixing dry-mix of making, for constructing a kind of material of construction of building surface thermal insulation layer through manufacturing enterprise.Along with continuous popularization and people's improving constantly living environment comfortableness demand of low-carbon environment-friendly and building energy conservation, thermal insulation mortar more and more attracts widespread attention, the research of China's thermal insulation mortar is more in recent years, existing a lot of application in Practical Project, but compared with developed countries, its fire resistance need to improve.

Summary of the invention

The object of the invention is to for the deficiencies in the prior art, provide a kind of fireproof heat insulating mortar, effectively the generation of building fire.

The technical solution used in the present invention is as follows:

A kind of fireproof heat insulating mortar, is made up of the raw material of following weight part: 42.5 ordinary Portland cement 30-50, carbide slag 10-15, lapis amiridis 8-10, stone fragment 20-30, bauxitic clay 5-10, glass bead 15-20, polyacrylamide 4-6, sodium alginate 3-5, polyoxyethylene glycol 2-3, aluminum silicate fiber 1-2, nano magnesia 1.5-2.5, saltcake 1-2, alum 2-3, compounded mix 3-6;

The preparation method of described compounded mix is as follows:

(a) take the raw material of following weight part: sepiolite 10-15, vermiculite 5-10, shale 20-30, coal gangue 8-12, kaolin 10-15, boron mud 5-10, vinyl three ('beta '-methoxy oxyethyl group) silane 1-2, spent pulping liquor 25-35, plant ash 4-8, Nano silica sol 15-20, tripoly phosphate sodium STPP 3-6, sorbester p17 0.5-1, citric acid 1-2, sugared calcium 2-4, nano-silicon nitride 3-5, jade powder 4-6, cocoanut fatty acid diethanolamide 2-3;

(b) shale, coal gangue, kaolin and boron mud are mixed, pulverized 100-150 mesh sieve, then add spent pulping liquor, citric acid and tripoly phosphate sodium STPP, wet ball grinding 20-30min, granulation, control particle diameter is 0.3-0.4mm, dries at 110-120 DEG C, high-temperature roasting 1-2h at 1150-1250 DEG C, is cooled to room temperature stand-by again;

(c) sepiolite and vermiculite are mixed after in 660-720 DEG C of temperature lower calcination 2-3h, be cooled to room temperature and be placed on the hydrochloric acid soln that concentration is 10-15%, heating in water bath is to 70-80 DEG C, and insulation 30-50min, filters, with distilled water, residue washing is extremely neutral, dry, pulverized 200-300 mesh sieve, then add vinyl three ('beta '-methoxy oxyethyl group) silane, cocoanut fatty acid diethanolamide, sugared calcium, nano-silicon nitride and jade powder, high-speed mixing 20-30min, stand-by;

(d) get Nano silica sol and sorbester p17 stirs, the particle that adds step (b) to make, high-speed stirring 5-10min, then the compound that adds plant ash and step (c) to make, high-speed stirring 10-15min, dries.

Using method: above-mentioned raw materials is mixed, then by weight 1: the ratio of 1.0-1.2 can be used after mortar dry powder and water are stirred.

Beneficial effect of the present invention:

Thermal insulation mortar fire resistance excellence of the present invention, flame retardancy reaches A level, does not produce obnoxious flavour when high temperature, environmental protection completely, and there is the performances such as good heat insulation property, cohesiveness, resistance to deterioration, weathering resistance, resistance to acids and bases, splitting resistance, with low cost, easy to use, stable performance, ultimate compression strength is high, and application property is good, does not ftracture, not hollowing, not efflorescence, durable in use.

Embodiment

A kind of fireproof heat insulating mortar, is made up of the raw material of following weight (kg): 42.5 ordinary Portland cements 40, carbide slag 10, lapis amiridis 10, stone fragment 25, bauxitic clay 7, glass bead 18, polyacrylamide 5, sodium alginate 4, polyoxyethylene glycol 2, aluminum silicate fiber 1.5, nano magnesia 2, saltcake 1.5, alum 2, compounded mix 4;

The preparation method of described compounded mix is as follows:

(a) take the raw material of following weight (kg): sepiolite 12, vermiculite 8, shale 24, coal gangue 12, kaolin 10, boron mud 8, vinyl three ('beta '-methoxy oxyethyl group) silane 1.5, spent pulping liquor 32, plant ash 6, Nano silica sol 18, tripoly phosphate sodium STPP 4, sorbester p17 0.7, citric acid 1.5, sugared calcium 3, nano-silicon nitride 4, jade powder 5, cocoanut fatty acid diethanolamide 2.5;

(b) shale, coal gangue, kaolin and boron mud are mixed, pulverized 120 mesh sieves, then add spent pulping liquor, citric acid and tripoly phosphate sodium STPP, wet ball grinding 30min, granulation, control particle diameter is 0.4mm, at 110 DEG C dry, then at 1150 DEG C high-temperature roasting 2h, be cooled to room temperature stand-by;

(c) sepiolite and vermiculite are mixed after in 670 DEG C of temperature lower calcination 3h, being cooled to room temperature, to be placed on concentration be 10% hydrochloric acid soln, heating in water bath to 80 DEG C, insulation 40min, filters, with distilled water, residue washing is extremely neutral, dry, pulverized 200 mesh sieves, then add vinyl three ('beta '-methoxy oxyethyl group) silane, cocoanut fatty acid diethanolamide, sugared calcium, nano-silicon nitride and jade powder, high-speed mixing 25min, stand-by;

(d) get Nano silica sol and sorbester p17 stirs, the particle that adds step (b) to make, high-speed stirring 8min, then the compound that adds plant ash and step (c) to make, high-speed stirring 12min, dries.

Above-mentioned raw materials is mixed, after then by weight the ratio of 1: 1.2, mortar dry powder and water being stirred, can use.

The performance perameter of the thermal insulation mortar that the present embodiment is produced sees the following form.

 

Project	Measure unit	Measured value
			Thermal conductivity	W/（m·k）	0.035
28d ultimate compression strength	kPa	426
			Linear shrinkage	%	0.22
Coefficient of softening	—	0.91
			Splitting resistance	—	The following flawless of 5mmm

Claims (1)

1. a fireproof heat insulating mortar, it is characterized in that, formed by the raw material of following weight part: 42.5 ordinary Portland cement 30-50, carbide slag 10-15, lapis amiridis 8-10, stone fragment 20-30, bauxitic clay 5-10, glass bead 15-20, polyacrylamide 4-6, sodium alginate 3-5, polyoxyethylene glycol 2-3, aluminum silicate fiber 1-2, nano magnesia 1.5-2.5, saltcake 1-2, alum 2-3, compounded mix 3-6;

The preparation method of described compounded mix is as follows:

(a) take the raw material of following weight part: sepiolite 10-15, vermiculite 5-10, shale 20-30, coal gangue 8-12, kaolin 10-15, boron mud 5-10, vinyl three ('beta '-methoxy oxyethyl group) silane 1-2, spent pulping liquor 25-35, plant ash 4-8, Nano silica sol 15-20, tripoly phosphate sodium STPP 3-6, sorbester p17 0.5-1, citric acid 1-2, sugared calcium 2-4, nano-silicon nitride 3-5, jade powder 4-6, cocoanut fatty acid diethanolamide 2-3;

(b) shale, coal gangue, kaolin and boron mud are mixed, pulverized 100-150 mesh sieve, then add spent pulping liquor, citric acid and tripoly phosphate sodium STPP, wet ball grinding 20-30min, granulation, control particle diameter is 0.3-0.4mm, dries at 110-120 DEG C, high-temperature roasting 1-2h at 1150-1250 DEG C, is cooled to room temperature stand-by again;

(c) sepiolite and vermiculite are mixed after in 660-720 DEG C of temperature lower calcination 2-3h, be cooled to room temperature and be placed on the hydrochloric acid soln that concentration is 10-15%, heating in water bath is to 70-80 DEG C, and insulation 30-50min, filters, with distilled water, residue washing is extremely neutral, dry, pulverized 200-300 mesh sieve, then add vinyl three ('beta '-methoxy oxyethyl group) silane, cocoanut fatty acid diethanolamide, sugared calcium, nano-silicon nitride and jade powder, high-speed mixing 20-30min, stand-by;

(d) get Nano silica sol and sorbester p17 stirs, the particle that adds step (b) to make, high-speed stirring 5-10min, then the compound that adds plant ash and step (c) to make, high-speed stirring 10-15min, dries.