A kind of anticorrosion antifreeze-thaw mortar and preparation method thereof

Abstract

The invention provides an anti-corrosion and anti-freeze-thaw mortar, which is mainly composed of powder and emulsion with a mass ratio of (4-6): 1. The powder includes: in parts by mass, 300-400 parts of cement and 400-500 parts of coarse sand , 100-300 parts of fine sand, 1-2 parts of water reducer, 3-8 parts of expansion agent, 1-2 parts of defoamer, 1-3 parts of HPMC, 1-2 parts of starch ether, 1-2 parts of water repellent , 1-3 parts of polypropylene fiber, 1-2 parts of hollow fiber, 30-50 parts of rubber powder; the emulsion includes: by mass percentage, cationic neoprene emulsion 20-30%, vinyl acetate-ethylene copolymer emulsion 20-30 %, and the rest is drinking water. The preparation method comprises: after separately preparing the powder and the emulsion, stirring and mixing uniformly in a certain proportion. The anti-corrosion and anti-freeze-thaw mortar of the present invention has dual performances of anti-corrosion and anti-freeze and thaw, and is worthy of wide popularization and application.

Description

technical field [0001] The invention relates to the field of construction, in particular to an anti-corrosion anti-freeze-thaw mortar for construction and a preparation method thereof. Background technique [0002] Cement, powdery hydraulic inorganic gelling material. After adding water and stirring, it becomes a slurry, which can be hardened in the air or better hardened in water, and can firmly bind sand, stone and other materials together. In the early years the mixture of lime and volcanic ash is very similar to lime pozzolanic cement, use it to glue concrete which made of crushed stone. After hardening, the cement not only has high strength, but also can resist the erosion of fresh water or salt water. For a long time, as an important cementing material, it is widely used in civil engineering, water conservancy, national defense and other projects. [0003] However, due to the low compressive ratio, low compressive ratio of ordinary concrete, poor impermeability, crac...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, in the application of water conservancy projects, the concrete dam body needs to pass water for a long time, and severe freeze-thaw erosion occurs; there is a certain acid-base corrosion situation; there are acid mist, salt mist and other corrosive gases in the air from time to time. The fog causes persistent damage to the dam body; in addition, the ultraviolet radiation lasts for a long time, and the damage caused by wind, sand, rain and snow accumulates over time

The maintenance of water conservancy projects where various diseases gather together cannot be solved at all with traditional anti-corrosion mortar materials.

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