Long-acting anti-freezing cement pavement repairing material

Abstract

The invention discloses a long-acting anti-freezing cement pavement repairing material, which comprises, by weight, 20-25 parts of 52.5 portland cement, 20-30 parts of low-temperature resistant anti-cracking latex powder, 0.5-1 part of sodium bicarbonate, 1-2 parts of a rust inhibitor and 3-5 parts of a long-acting high-efficiency water reducing agent, 1-2 parts of low-cold-resistant low-viscosity-resistant cellulose 100 thousand units, 10-15 parts of gypsum powder, 30-35 parts of water-washed and dried coarse sand and fine sand, 10-15 parts of bauxite compound, 1-2 parts of lithium sulfate, 25-40 parts of quartz sand and carborundum, 5-20 parts of low-cold-resistant efficient air-entraining powder, 5-6 parts of polypropylene anticorrosive fiber, 15-30 parts of 52.5 aluminum sulfide systemcement, 18-20 parts of dry powder mineral powder, 5-8 parts of boric acid, 3-6 parts of tartaric acid, 3-5 parts of organic silicon and 20-25 parts of water. The repairing material is a powdery polymer, has good acid and alkali resistance and weather resistance and has low sensitivity to temperature, the strength is not influenced by low temperature, high cold resistance is achieved, and the performance is stable, the strength rapidly and continuously grow, the material has strong repairing effect on original cement concrete foundations and pavements of various cement foundations in cold areas.

Description

technical field [0001] The invention belongs to the field of road engineering materials, in particular to a long-acting frost-resistant cement pavement patching material. Background technique [0002] During the use of the cement pavement, there will be pitting, hollowing, peeling, shelling, cracks, exposed ribs and other diseases. Once the disease occurs, the disease will expand and penetrate with time under the influence of reciprocating load and environmental factors, resulting in the appearance of the pavement. Cracks, or even a large area of ​​detachment, will destroy the integrity of the road surface and seriously affect driving safety. After the cement pavement has a disease, it needs to be repaired to prevent the deterioration of the disease. The repair material is strictly controlled to meet the hardness, strength and stability of the base surface. Especially in the alpine region, there is a higher demand for the cold and frost resistance of the repair material. hi...

AI Technical Summary

Problems solved by technology

[0002] During the use of the cement pavement, there will be pitting, hollowing, peeling, shelling, cracks, exposed ribs and other diseases. Once the disease occurs, the disease will expand and penetrate with time under the influence of reciprocating load and environmental factors, resulting in the appearance of the pavement. Cracks, even a large area falls off, destroying the integrity of the road surface and seriously affecting driving safety