Abstract Crumb rubber (CR) is generated from the recycling of used or discarded car tires and has long been utilized in paving industry. can be asphalt mixes two ways: dry process wet process. However, compared to standard combinations, crumb modified (CRMA) requires much higher mixing compaction temperatures. As a potential substitute, using warm mix (WMA) technology significantly lower hot-mi...

Stone matrix asphalt (SMA) mixtures are one of the most resistant types known to date that bulk load is borne by aggregate skeleton. In this research, effect crumb rubber powder (CRP), Vestenamer polymer, and warm additives, including Sasobit, ZycoTherm, a porous mix (PAWMA), was investigated on moisture resistance SMA mixtures. A segregation test performed determine tendency polymer separate f...

In this paper, the effect of combined use re-recycled Reclaimed Asphalt Pavement (RAP) on performance properties Warm Mix (WMA) was experimentally investigated at both binder and mixture scales. First, a virgin 50/70 Pen Grade fresh Gabbro aggregates were used to prepare conventional Hot (HMA) for surface layers as reference mixture. Then, same mix type produce designed with 40% RAP, 160/220 bi...

Warm mix asphalts (WMA), because of their low production and compact temperatures, may have different behaviors in long term. In the present work, the energy-based criteria along with the 50% reduction in initial stiffness (Nf50%) using four-point bending test under controlled-strain conditions of 1000 microstrain were applied to compare the prepared two warm mix and HMA samples. All these crit...

The present research aims to conduct laboratory assessment on fatigue phenomenon in warm mix asphalt modified with nano-silica and including reclaimed asphalt pavement materials by the aid of review on self-healing behavior and measurement of validity of laboratory results by modeling via neural artificial network in neutral network of SPSS software. For this purpose, 2% weight of sasobit and 3...

Abstract Pavement engineers are facing difficulties for optimizing the use of natural resources and minimizing consumption fuel involved in manufacturing process Hot Mix Asphalt (HMA). As a matter fact preparation HMA involves release harmful gases to prevent, researches working towards improving environmental effects. Warm mix asphalt (WMA) is one solutions increase pavement performance with c...