Cold-pouring crack adhesive for pavement crack and method for preparing cold-pouring adhesive

Abstract

The invention discloses cold-pouring crack adhesive for pavement crack. The cold-pouring crack adhesive comprises, by weight, 80-100 parts of room-temperature vulcanized silicone rubber, 60-120 parts of nanometer calcium titanate, 5-25 parts of solvent oil, 5-20 parts of white carbon black, 5-15 parts of cross-linking agents, 0.5-2 parts of modifiers and 0.01-0.5 part of catalysts. The cold-pouring crack adhesive has the advantages that the irregular crack in cement or asphalt pavements can be poured with the cold-pouring crack adhesive under normal-temperature conditions, field heating or special crack pouring equipment can be omitted, and accordingly the construction cost can be lowered to a great extent; the crack can be subjected to preventive treatment, accordingly, the purpose of sealing the crack can be achieved, water seepage of the pavements can be prevented, the stable strength of bases of the pavements can be guaranteed, and damage to the pavements due to frost boiling of the pavements or the bases can be completely eradicated.

Description

technical field [0001] The invention relates to a joint filling construction technology, in particular to a cold filling joint glue for pavement cracks and a preparation method thereof. Background technique [0002] At present, the pavement crack treatment mainly adopts the joint filling construction technology of heat sealant. The heat sealant is solid at room temperature, and after being heated to 180°C on-site with liquefied gas, it will form a viscous liquid. Before filling the joints, a special crack slotting machine must be used for slotting. The width of the V-shaped slot is about 4 cm and the depth is about 5 cm. After slotting, use large-scale special filling equipment to fill the joints. At least 7 construction workers are required for each shift of joint filling. Due to the large volume of slotting, the grinding wheel of the slotting machine consumes a lot, and the amount of glue used during joint filling is also large, and the joint filling equipment must be tho...

AI Technical Summary

Problems solved by technology

At least 7 construction workers are required for each shift of joint filling. Due to the large volume of slotting, the grinding wheel of the slotting machine consumes a lot, and the amount of glue used during joint filling is also large, and the joint filling equipment must be thoroughly cleaned after each shift. , more than 20 kg of thinner is needed for each cleaning, so the minimum cost per meter of joint filling is 8 yuan

The most important thing is that the original pavement cracks are very small, and most of them are less than 2 mm deep. After the grooves are opened, the development of the cracks is aggravated, causing secondary damage to the pavement cracks, and aggravating the degree of cracking.