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The Study on the Effects of the Key Technology Parameters of SBS Modified Asphalt on the Mixture Performance

Author: WuWenHao
Tutor: HanSen
School: Chang'an University
Course: Road and Railway Engineering
Keywords: SBS modified Asphalt mixture Road performance
CLC: U414
Type: Master's thesis
Year: 2011
Downloads: 69
Quote: 0
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Abstract


SBS is currently the world's most widespread application of road asphalt modifier polymerized from styrene and butadiene block composition , composed of a glass transition temperature below the polystyrene is a resilient elastomeric material , and in the higher temperatures , has become the state of the fluid close to the linear polymer . It has rubber elastic properties , have resin thermoplastic material, and thus has good elasticity , high tensile strength, low-temperature deformation performance advantages. Be uniformly dispersed in the asphalt can be improved the road high temperature rutting resistance and resistance to the passage of ability , reduce asphalt brittle point asphalt flexibility at low temperatures , reducing pavement cracks . Simultaneously SBS asphalt and aggregate bond strength improve , can improve the flexibility and strength of asphalt deformation recovery performance , can effectively extend the pavement service life . In this paper, by the high temperature stability of SBS modified asphalt mixture , low temperature cracking resistance , water stability , and anti - aging properties of the test , and analysis of the technical nature of the mixture of the key technical parameters of SBS modified asphalt and the proposed technical measures and methods to improve the technical nature of SBS modified asphalt mixture . The purpose of this paper is that the SBS modified asphalt by studying the key technical parameters of the the modified asphalt quality control of technical measures , the technical nature of SBS asphalt mixture to achieve the best , eliminating modified asphalt pavement early disease , prolong pavement life .

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CLC: > Transportation > Road transport > Road works > Road construction materials
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