CN104193234A - High-toughness waterproof mortar and preparation method thereof - Google Patents

Abstract

The invention discloses a high-toughness waterproof mortar which is prepared from the following raw materials in parts by weight: 140-160 parts of cement, 40-50 parts of silica fume, 2-3 parts of dodecyl trimethyl ammonium chloride, 40-50 parts of bentonite, 40-45 parts of coral powder, 4-6 parts of grease scraps, 2-4 parts of caustic soda flakes, 2-4 parts of rosin, 3-4 parts of sodium pyrophosphate, 4-6 parts of monoethanolamine, a right amount of water, 20-25 parts of auxiliaries, 50-60 parts of sand, 20-25 parts of PVA fiber and 80-100 parts of fly ash. According to the invention, due to use of PVA fiber, the mortar is high in toughness, not easy to crack and high in bonding strength, and has a good bonding performance with brick masonry; due to the utilization of coral powder, bentonite, grease scraps and rosin, the waterproof performance of the mortar is excellent; and by use of auxiliaries, the compressive strength and breaking strength of the mortar are increased, and the workability, sag resistance, thixotropy and anti-settling property of the mortar are improved.

Description

A kind of high-tenacity waterproof mortar and preparation method thereof

Technical field

The invention belongs to building material field, particularly a kind of high-tenacity waterproof mortar and preparation method thereof.

Background technology

Mortar is common material for building, belongs to the indispensable material in building operation.Divide according to performance, mortar is divided into a variety of, has in conjunction with mortar, filleting mortar, thermal insulation mortar etc.; Be divided into masonry mortar, plastering mortar (comprising decoration mortar, waterproof mortar), adhesive mortar etc. by purposes.

The performance quality of mortar differs at present, affects use.Specifically the factor that affects mortar performance comprises the workability of fresh mortar, mobility, water-retentivity, is exactly the intensity of hardened mortar in addition.Need to study new mortar, make it have excellent application property and processibility, sag resistance, thixotropy, anti-settling, package stability, improve pumping and shear-thinning, also need to find new material, to improve its use properties and intensity, and reduce comprehensive cost.

Summary of the invention

The object of the present invention is to provide a kind of high-tenacity waterproof mortar and preparation method thereof, this mortar has higher toughness, and not easy to crack, cohesive strength is high, and between brick structures, has good adhesive property, water resistance excellence.

Technical scheme of the present invention is as follows:

A kind of high-tenacity waterproof mortar, is characterized in that being made up of the raw material of following weight part: cement 140-160, silicon ash 40-50, Dodecyl trimethyl ammonium chloride 2-3, wilkinite 40-50, coral powder 40-45, greasyfoot 4-6, sheet alkali 2-4, rosin 2-4, trisodium phosphate 3-4, monoethanolamine 4-6, water are appropriate, auxiliary agent 20-25, sand 50-60, PVA fiber 20-25, flyash 80-100;

Described auxiliary agent is made up of the raw material of following weight part: attapulgite 2-3, wilkinite 2-3, steel fiber 6-7, urethane acrylate 4-5, E-12 epoxy resin 2-3, epoxy acrylate 3-4, peroxidized t-butyl perbenzoate 0.2-0.3, vinylbenzene 1-2, dipropylene glycol 3-4, TriMethylolPropane(TMP) 2-3, Calucium Silicate powder 3-4, mandarin oil 0.8-1.2, benzotriazole 0.6-0.9, trimeric cyanamide 1-2, 10-15% sodium hydroxide solution 6-8, sodium oleate 0.2-0.3, ammonium persulphate 0.1-0.2, water 17-20, preparation method is: attapulgite, wilkinite are put into calcining furnace, at 670-700 DEG C, calcine 3-4 hour, taking-up, puts into 10-15% sodium hydroxide solution and be ground to 20-40 μ m slurry, and the material pH value of sizing mixing is for neutral, and spraying is dried to obtain powder, water, sodium oleate, urethane acrylate, E-12 epoxy resin, epoxy acrylate, vinylbenzene, dipropylene glycol, TriMethylolPropane(TMP) are mixed, be heated to 60-70 DEG C, add peroxidized t-butyl perbenzoate, stirring reaction 20-30 minute, add again described powder and other composition, continue to be warming up to 80-90 DEG C, stirring reaction 50-60 minute, to obtain final product.

The preparation method of described high-tenacity waterproof mortar, is characterized in that comprising the following steps:

(1) coral powder, wilkinite, greasyfoot, rosin are mixed, grind 20-30 minute, obtain mixture;

(2) Dodecyl trimethyl ammonium chloride, sheet alkali, trisodium phosphate, monoethanolamine, water are mixed, stir and obtain slurry;

(3) auxiliary agent, sand, silicon ash are mixed, dispersion grinding 20-30 minute, obtains mixture;

(4) mixing of materials other remaining components and (1) step, (2) step, (3) step being obtained is even, and stirring reaction 10-15 minute, to obtain final product.

Beneficial effect of the present invention

Mortar of the present invention has used PVA fiber, has higher toughness, and not easy to crack, cohesive strength is high, and between brick structures, has good adhesive property, by using coral powder, wilkinite, greasyfoot, rosin, makes mortar water resistance excellence; The application of the invention auxiliary agent, has improved resistance to compression, the folding strength of mortar, has improved workability, sag resistance, thixotropy and anti-settling.

Embodiment

A kind of high-tenacity waterproof mortar, by following weight part (kilogram) raw material make: cement 150, silicon ash 45, Dodecyl trimethyl ammonium chloride 2.5, wilkinite 45, coral powder 43, greasyfoot 5, sheet alkali 3, rosin 3, trisodium phosphate 3.5, monoethanolamine 5, water are appropriate, auxiliary agent 23, sand 55, PVA fiber 23, flyash 90;

Described auxiliary agent by following weight part (kilogram) raw material make: attapulgite 2.5, wilkinite 2.5, steel fiber 6.5, urethane acrylate 4.5, E-12 epoxy resin 2.5, epoxy acrylate 3.5, peroxidized t-butyl perbenzoate 0.5, vinylbenzene 1.5, dipropylene glycol 3.5, TriMethylolPropane(TMP) 2.5, Calucium Silicate powder 3.5, mandarin oil 1, benzotriazole 0.8, trimeric cyanamide 1.5,3% sodium hydroxide solution 7, sodium oleate 0.3, ammonium persulphate 0.2, water 19; Preparation method is: attapulgite, wilkinite are put into calcining furnace, calcine 3.5 hours at 69 DEG C, taking-up, puts into 13% sodium hydroxide solution and be ground to 30 μ m slurries, and the material pH value of sizing mixing is for neutral, and spraying is dried to obtain powder; Water, sodium oleate, urethane acrylate, E-12 epoxy resin, epoxy acrylate, vinylbenzene, dipropylene glycol, TriMethylolPropane(TMP) are mixed, be heated to 65 DEG C, add peroxidized t-butyl perbenzoate, stirring reaction 25 minutes, add again described powder and other composition, continue to be warming up to 85 DEG C, stirring reaction 55 minutes, to obtain final product.

The preparation method of described high-tenacity waterproof mortar, comprises the following steps:

(1) coral powder, wilkinite, greasyfoot, rosin are mixed, grind 25 minutes, obtain mixture;

(2) Dodecyl trimethyl ammonium chloride, sheet alkali, trisodium phosphate, monoethanolamine, water are mixed, stir and obtain slurry;

(3) auxiliary agent, sand, silicon ash are mixed, dispersion grinding 25 minutes, obtains mixture;

(4) mixing of materials other remaining components and (1) step, (2) step, (3) step being obtained is even, and stirring reaction 13 minutes, to obtain final product.

Experimental data:

The ultimate compression strength of the mortar 28d of this embodiment is 45MPa, folding strength 14MPa, water-intake rate 2.2%.

Claims (2)

1. a high-tenacity waterproof mortar, is characterized in that being made up of the raw material of following weight part: cement 140-160, silicon ash 40-50, Dodecyl trimethyl ammonium chloride 2-3, wilkinite 40-50, coral powder 40-45, greasyfoot 4-6, sheet alkali 2-4, rosin 2-4, trisodium phosphate 3-4, monoethanolamine 4-6, water are appropriate, auxiliary agent 20-25, sand 50-60, PVA fiber 20-25, flyash 80-100;

Described auxiliary agent is made up of the raw material of following weight part: attapulgite 2-3, wilkinite 2-3, steel fiber 6-7, urethane acrylate 4-5, E-12 epoxy resin 2-3, epoxy acrylate 3-4, peroxidized t-butyl perbenzoate 0.2-0.3, vinylbenzene 1-2, dipropylene glycol 3-4, TriMethylolPropane(TMP) 2-3, Calucium Silicate powder 3-4, mandarin oil 0.8-1.2, benzotriazole 0.6-0.9, trimeric cyanamide 1-2, 10-15% sodium hydroxide solution 6-8, sodium oleate 0.2-0.3, ammonium persulphate 0.1-0.2, water 17-20, preparation method is: attapulgite, wilkinite are put into calcining furnace, at 670-700 DEG C, calcine 3-4 hour, taking-up, puts into 10-15% sodium hydroxide solution and be ground to 20-40 μ m slurry, and the material pH value of sizing mixing is for neutral, and spraying is dried to obtain powder, water, sodium oleate, urethane acrylate, E-12 epoxy resin, epoxy acrylate, vinylbenzene, dipropylene glycol, TriMethylolPropane(TMP) are mixed, be heated to 60-70 DEG C, add peroxidized t-butyl perbenzoate, stirring reaction 20-30 minute, add again described powder and other composition, continue to be warming up to 80-90 DEG C, stirring reaction 50-60 minute, to obtain final product.

2. the preparation method of high-tenacity waterproof mortar according to claim 1, is characterized in that comprising the following steps:

(1) coral powder, wilkinite, greasyfoot, rosin are mixed, grind 20-30 minute, obtain mixture;

(2) Dodecyl trimethyl ammonium chloride, sheet alkali, trisodium phosphate, monoethanolamine, water are mixed, stir and obtain slurry;

(3) auxiliary agent, sand, silicon ash are mixed, dispersion grinding 20-30 minute, obtains mixture;

(4) mixing of materials other remaining components and (1) step, (2) step, (3) step being obtained is even, and stirring reaction 10-15 minute, to obtain final product.