Study on Effect of Softening Oil on the Physical and Aging Properties of Elastomer Modified Bitumen Waterproofing Membrane
In this article,the effects of softening oil with different chemical composition on softening point,flexibility at low temperature,and joint peeling strength of elastomer modified bitumen waterproofing membrane before and after thermal aging are studied.The results show that the elastomer modified bitumen waterproofing membrane prepared by softening oil with high saturate content has excellent high and low temperature properties,but the joint peeling strength and the aging resistance is poor;the membrane prepared by softening oil with high aromatic content and colloid content has great joint peeling strength and good aging resistance,but poor high and low temperature performance.Softening oil with saturate content of 40%～60%and aromatic content of 30%～50%is recommended for elastomer modified bitumen waterproofing membrane.
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