| abstract |
The present invention relates to an asphalt sealant composition used as a crack repair agent, joint material, expansion joint sealing material or sealing material, various filling materials, waterproofing materials or binders in the construction and construction of various concrete or asphalt pavements, bridges or structures. 30 to 70 parts by weight, 2 to 20 parts by weight of styrene-conjugated diene block copolymer, 21 to 60 parts by weight of petroleum resin, and 0.5 to 50 parts by weight of waste tire rubber powder. Asphalt sealant composition according to the present invention is not only environmentally friendly by using waste tire powder, but also excellent in low temperature adhesiveness, low temperature flexibility and excellent physical properties such as heat resistance, so that the asphalt sealant composition can be suitably used in regions with severe seasonal temperature changes. . |