Evaluation of Engineering Properties of Rubberized Laboratory Mixes Containing Warm Mix Additives

摘要: Warm mix asphalt (WMA) refers to technologies which allow a significant reduction of mixing and compaction temperatures mixes. From previous studies, it is observed that warm additives work in different ways, either reducing the viscosity binder or allowing better workability at lower through volume expansion binder. If WMA are incorporated into rubberized mixes, generally produced compacted higher temperature than conventional possible reduce mixes those This paper presents limited study characterizes engineering properties crumb rubber modifier (CRM) mixtures containing additives. Six CRM (two control four mixtures) were prepared using two aggregate sources additives: Aspha-min® Sasobit®. Evaluation all included following testing procedures: tensile strength ratio, pavement analyzer, resilient modulus, modulus after long-term oven aging. The results from this showed general, there was no difference between for evaluated study, indicating use expected have negative effect on mixture’s properties.