Freeze-thaw resistant waterproof mortar and preparation method thereof

Abstract

The invention discloses freeze-thaw resistant waterproof mortar and a preparation method thereof. The freeze-thaw resistant waterproof mortar is prepared from the following raw materials in parts by weight: 100-120 parts of cement, 20-25 parts of river sand, 10-20 parts of potato waste residue powder, 30-60 parts of rubber powder, 5-8 parts of methyl cellulose ether, 5-7 parts of polypropylene fibers, 10-20 parts of meerschaum powder, 5-7 parts of rutile titanium dioxide, 5-8 parts of modified fly ash, 10-12 parts of gypsum, 1-3 parts of an expanding agent, 1-3 parts of a defoamer, 1-3 parts of a water reducer, 1-3 parts of a waterproofing agent and 2-4 parts of a freezing resisting agent. The freeze-thaw resistant waterproof mortar disclosed by the invention has excellent cold-proof freeze-thaw resistance and waterproof barrier property, strong resistance to sulfate and sea water corrosion, strong bonding property and good flexibility and extensibility, can be used for filling up cracks, and is suitable for engineering waterproofing in building basements, ponds, water towers, culverts and subways.

Description

technical field

[0001] The invention relates to the technical field of building materials, in particular to a freeze-thaw resistant waterproof mortar and a preparation method thereof. Background technique

[0002] As an important building material, mortar has a wide range of uses. However, the use of mortar is restricted and affected by many factors. For example, the erosion of chlorine salt, sulfate, magnesium salt and other factors will reduce the quality of mortar. The chemical and microstructure of the slurry will cause the expansion, cracking, peeling and other phenomena of the mortar, which will reduce the strength and cohesiveness of the mortar, or even lose it, and eventually lead to a decrease in the durability of the mortar; affected by the cold and low temperature, the mortar will age. , frost cracking; and the current dry-mixed mortar has poor waterproof effect, insufficient viscosity, and is easy to be damaged, especially in a humid building environment, it is ...

Examples

Embodiment 1

[0020] A freeze-thaw resistant waterproof mortar, made of the following raw materials in parts by weight: 100 parts of cement, 20 parts of river sand, 10 parts of potato waste powder, 30 parts of rubber powder, 5 parts of methyl cellulose ether, and 5 parts of polypropylene fiber , 20 parts of sepiolite powder, 5 parts of rutile titanium dioxide, 5 parts of modified fly ash, 10 parts of gypsum, 1 part of expansion agent, 1 part of defoaming agent, 1 part of water reducing agent, 3 parts of waterproofing agent, cold resistance agent 2 copies;

[0021] The potato waste residue powder is obtained by air-drying the potato waste residue produced by a potato starch production enterprise, crushing it, passing through a 200-mesh sieve, soaking it in dimethyl methyl phosphate for 10 hours, separating it, and drying it naturally to obtain the potato waste residue powder.

[0022] The rubber powder is a polyvinyl acetate-ethylene emulsion spray-dried, and 10% of the total weight of the f...

Embodiment 2

[0030] A freeze-thaw resistant waterproof mortar, made of the following raw materials in parts by weight: 110 parts of cement, 22 parts of river sand, 15 parts of potato waste powder, 50 parts of rubber powder, 6 parts of methyl cellulose ether, and 6 parts of polypropylene fiber , 15 parts of sepiolite powder, 6 parts of rutile titanium dioxide, 7 parts of modified fly ash, 11 parts of gypsum, 2 parts of expansion agent, 2 parts of defoaming agent, 2 parts of water reducing agent, 2 parts of waterproofing agent, cold resistance agent 3 copies;

[0031] The potato waste residue powder is obtained by air-drying the potato waste residue produced by a potato starch production enterprise, crushing it, passing through a 300-mesh sieve, soaking it in dimethyl methyl phosphate for 8 hours, separating it, and drying it naturally to obtain the potato waste residue powder.

[0032] The rubber powder is a polyvinyl acetate-ethylene emulsion spray-dried, and 10% of the total weight of the...

Embodiment 3

[0040] A freeze-thaw resistant waterproof mortar, made of the following raw materials in parts by weight: 120 parts of cement, 20 parts of river sand, 20 parts of potato waste powder, 30 parts of rubber powder, 8 parts of methyl cellulose ether, and 5 parts of polypropylene fiber , 20 parts of sepiolite powder, 5 parts of rutile titanium dioxide, 8 parts of modified fly ash, 12 parts of gypsum, 3 parts of expansion agent, 3 parts of defoaming agent, 3 parts of water reducing agent, 1 part of waterproofing agent, cold resistance agent 2 copies;

[0041] The potato waste residue powder is prepared by air-drying the potato waste residue produced by a potato starch production enterprise, pulverizing, passing through a 300-mesh sieve, soaking in dimethyl methyl phosphate for 5 hours, separating, and drying naturally to obtain the potato waste residue powder.

[0042] The rubber powder is a polyvinyl acetate-ethylene emulsion spray-dried, and 10% of the total weight of the finished pr...

technical field

[0001] The invention relates to the technical field of building materials, in particular to a freeze-thaw resistant waterproof mortar and a preparation method thereof. Background technique

[0002] As an important building material, mortar has a wide range of uses. However, the use of mortar is restricted and affected by many factors. For example, the erosion of chlorine salt, sulfate, magnesium salt and other factors will reduce the quality of mortar. The chemical and microstructure of the slurry will cause the expansion, cracking, peeling and other phenomena of the mortar, which will reduce the strength and cohesiveness of the mortar, or even lose it, and eventually lead to a decrease in the durability of the mortar; affected by the cold and low temperature, the mortar will age. , frost cracking; and the current dry-mixed mortar has poor waterproof effect, insufficient viscosity, and is easy to be damaged, especially in a humid building environment, it is ...

Examples

Embodiment 1

[0020] A freeze-thaw resistant waterproof mortar, made of the following raw materials in parts by weight: 100 parts of cement, 20 parts of river sand, 10 parts of potato waste powder, 30 parts of rubber powder, 5 parts of methyl cellulose ether, and 5 parts of polypropylene fiber , 20 parts of sepiolite powder, 5 parts of rutile titanium dioxide, 5 parts of modified fly ash, 10 parts of gypsum, 1 part of expansion agent, 1 part of defoaming agent, 1 part of water reducing agent, 3 parts of waterproofing agent, cold resistance agent 2 copies;

[0021] The potato waste residue powder is obtained by air-drying the potato waste residue produced by a potato starch production enterprise, crushing it, passing through a 200-mesh sieve, soaking it in dimethyl methyl phosphate for 10 hours, separating it, and drying it naturally to obtain the potato waste residue powder.

[0022] The rubber powder is a polyvinyl acetate-ethylene emulsion spray-dried, and 10% of the total weight of the f...

Embodiment 2

[0030] A freeze-thaw resistant waterproof mortar, made of the following raw materials in parts by weight: 110 parts of cement, 22 parts of river sand, 15 parts of potato waste powder, 50 parts of rubber powder, 6 parts of methyl cellulose ether, and 6 parts of polypropylene fiber , 15 parts of sepiolite powder, 6 parts of rutile titanium dioxide, 7 parts of modified fly ash, 11 parts of gypsum, 2 parts of expansion agent, 2 parts of defoaming agent, 2 parts of water reducing agent, 2 parts of waterproofing agent, cold resistance agent 3 copies;

[0031] The potato waste residue powder is obtained by air-drying the potato waste residue produced by a potato starch production enterprise, crushing it, passing through a 300-mesh sieve, soaking it in dimethyl methyl phosphate for 8 hours, separating it, and drying it naturally to obtain the potato waste residue powder.

[0032] The rubber powder is a polyvinyl acetate-ethylene emulsion spray-dried, and 10% of the total weight of the...

Embodiment 3

[0040] A freeze-thaw resistant waterproof mortar, made of the following raw materials in parts by weight: 120 parts of cement, 20 parts of river sand, 20 parts of potato waste powder, 30 parts of rubber powder, 8 parts of methyl cellulose ether, and 5 parts of polypropylene fiber , 20 parts of sepiolite powder, 5 parts of rutile titanium dioxide, 8 parts of modified fly ash, 12 parts of gypsum, 3 parts of expansion agent, 3 parts of defoaming agent, 3 parts of water reducing agent, 1 part of waterproofing agent, cold resistance agent 2 copies;

[0041] The potato waste residue powder is prepared by air-drying the potato waste residue produced by a potato starch production enterprise, pulverizing, passing through a 300-mesh sieve, soaking in dimethyl methyl phosphate for 5 hours, separating, and drying naturally to obtain the potato waste residue powder.

[0042] The rubber powder is a polyvinyl acetate-ethylene emulsion spray-dried, and 10% of the total weight of the finished pr...

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