Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of warm mix asphalt (WMA) technologies on the moisture resistance of asphalt mixtures
Graphical abstract Display Omitted
Highlights Effect of WMAs on moisture resistance of asphalt mixture is evaluated. Chemical based additive showed better moisture resistance. Adhesive and cohesive failure modes were assessed. BSR and TSR showed appreciable correlation. A limiting value of 0.7 is proposed for BSR.
Abstract Moisture damage has been identified as a major concern for asphalt pavements. This concern becomes more critical when the asphalt mixtures are prepared at lower mixing and compaction temperatures using technologies such as warm mix asphalt (WMA). In this study, the effect of different WMA technologies on the moisture resistance of asphalt mixtures was studied using a variety of experimental investigations including bond strength ratio (BSR), percentage coating, retained Marshall stability (RMS), and tensile strength ratio (TSR). Two aggregate sources (granite and dolomite), two base asphalt binders (VG30 and PMB40), and five WMA additives categorized under organic, chemical, and foaming technologies were used. Moisture damage in WMA mixtures was found to be a function of aggregate type and base asphalt binder. Rediset, a chemical WMA additive, showed higher moisture resistance in comparison to other technologies. Appreciable correlations were found between BSR and TSR (R2 ranged from 0.61 to 0.72). This study suggests a minimum BSR of 0.7 for satisfactory performance against moisture damage.
Effect of warm mix asphalt (WMA) technologies on the moisture resistance of asphalt mixtures
Graphical abstract Display Omitted
Highlights Effect of WMAs on moisture resistance of asphalt mixture is evaluated. Chemical based additive showed better moisture resistance. Adhesive and cohesive failure modes were assessed. BSR and TSR showed appreciable correlation. A limiting value of 0.7 is proposed for BSR.
Abstract Moisture damage has been identified as a major concern for asphalt pavements. This concern becomes more critical when the asphalt mixtures are prepared at lower mixing and compaction temperatures using technologies such as warm mix asphalt (WMA). In this study, the effect of different WMA technologies on the moisture resistance of asphalt mixtures was studied using a variety of experimental investigations including bond strength ratio (BSR), percentage coating, retained Marshall stability (RMS), and tensile strength ratio (TSR). Two aggregate sources (granite and dolomite), two base asphalt binders (VG30 and PMB40), and five WMA additives categorized under organic, chemical, and foaming technologies were used. Moisture damage in WMA mixtures was found to be a function of aggregate type and base asphalt binder. Rediset, a chemical WMA additive, showed higher moisture resistance in comparison to other technologies. Appreciable correlations were found between BSR and TSR (R2 ranged from 0.61 to 0.72). This study suggests a minimum BSR of 0.7 for satisfactory performance against moisture damage.
Effect of warm mix asphalt (WMA) technologies on the moisture resistance of asphalt mixtures
Sukhija, Mayank (Autor:in) / Saboo, Nikhil (Autor:in) / Pani, Agnivesh (Autor:in)
28.01.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2011
| Taylor & Francis Verlag | 2012
Moisture characteristics of mixtures with warm mix asphalt technologies – A review
| British Library Online Contents | 2017