Self-adhesion waterproof rolls used for road bridge and preparation method thereof

Abstract

The invention relates to self-adhesion waterproof rolls used for a road bridge. The self-adhesion waterproof rolls used for the road bridge comprises, by weight, 40-60 parts of asphalt No.90, 10-20 parts of softening oil, 3-10 parts of styrene-butadiene-styrene block copolymer, 2-5 parts of butadiene styrene rubber, 3-8 parts of reclaimed polypropylene, 0.5-3 parts of high temperature modifier, 5-15 parts of rubber powder and 25-40 parts of stuffing. The self-adhesion waterproof rolls used for the road bridge has excellent high-and-low temperature resistance performance, is imperious, impact-proof, anti-shearing and large in bonding strength, and has self-healing creep performance. Fire baking is not required in construction, cold construction is adopted, the construction method is simple, and the construction efficiency is high.

Description

technical field [0001] The invention relates to a waterproof coiled material and a preparation method thereof, in particular to a self-adhesive waterproof coiled material for roads and bridges and a preparation method thereof. Background technique [0002] In recent years, my country's transportation industry has developed rapidly, and there are more and more overpasses, viaducts, expressways, railways, etc., and a large number of roads and bridges that are under construction or have not yet been built provide convenience for people to travel, but their normal service life is also doubled. focus on. The quality of road and bridge waterproofing directly affects its normal service life. Often due to inadequate waterproofing links and repeated impacts, stretching, shearing and temperature stresses of vehicle loads, the negative bending moment of reinforced concrete beams and reinforced concrete Fine cracks in the bridge deck cause problems such as water seepage, pits, collapse,...

AI Technical Summary

Problems solved by technology

[0004] At present, the road and bridge waterproofing membranes used in the market are mainly styrene-butadiene-styrene block copolymers and APP modified asphalt waterproofing membranes, which have excellent high temperature resistance, impact resistance and shear performance, but These two products also have their shortcomings. For example, hot melt construction must be used during construction, and the coiled material needs to be baked so that the modified asphalt layer of the coiled material can be thermally melted before paving. Open flames are used at the construction site. There are also certain safety hazards; and the bonding strength between these two products and several sides is not very large, and the low temperature resistance of APP coils is not very ideal.

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