Indexes of Foamed Warm Mixed Crumb Rubber Modified Asphalt
Journal Title: 河南科技大学学报（自然科学版） - Year 2016, Vol 37, Issue 3
Abstract
For the study of low temperature performance of foamed warm mixed crumb rubber modified asphalt and evaluation indexes,the ductility test,bending beam rheometer( BBR) test and dynamic shear rheological test were conducted on foamed warm mixed crumb rubber modified asphalt and styrene-butadiene-styrene( SBS) modified asphalt. The rationality of the low temperature performance index of foamed warm mixed rubber asphalt was evaluated by using the ductility value,the creep strength modulus S and glass transition temperature Tg. The creep strength modulus S and the glass transition temperature Tgshow that the low temperature performance of foamed warm mixed crumb rubber asphalt is better than that of foamed warm mixed SBS modified asphalt in low temperature. However,the ductility value data show different conclusion. Through analysis,ductility index is not suitable for evaluating low temperature performance of foamed warm mixed crumb rubber modified asphalt binder,while the glass transition temperature Tgis feasible as the evaluation index.
Authors and Affiliations
Fan GU, Bo XU, Kai WANG
Keywords
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- EP ID EP461307
- DOI 10.15926/j.cnki.issn1672-6871.2016.03.015
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