Laboratory Performance Based Cost Assessment of Warm-Mix Asphalt Concrete Technologies

With growing environmental concerns and ever-increasing budgetary constraints, the use of warm-mix asphalt (WMA) is on the rise, since WMA has the potential to reduce cost and provide environmental benefits. One hurdle in the adoption of WMA is the uncertainty of its long-term performance. Currently a literature gap exists on the performance of WMA, as most studies tend to focus on the economics and environmental benefits of the emerging technology. Laboratory experimentation, in the form of rutting, fatigue life, and moisture susceptibility as measured by tensile-strength-ratio (TSR), was conducted on four different WMA technologies in order to compare the change in performance between WMA and hot-mix asphalt. Linear regression models were then fit to the laboratory results to identify variables which were statistically significant in affecting performance. Life cycle cost analysis principles were then applied to compare the warm mix technologies. The resulting dollar amount from the cost analysis was compared with the regression models, which allow for direct comparison between cost savings and performance. The result of this study shows that addition of low and moderate amounts of WMA additive was found to increase fatigue life; however, high dosages of additive negatively affected the fatigue life. It was also shown that reducing the mixing temperature of any asphalt mixture tested in this study increased the likelihood of rutting. Lastly, TSR and fatigue life were found to be dependent on the type of additive chosen. In general, every WMA technology tested has the potential to reduce costs and improve at least one measure of the expected performance of asphalt mixtures.

並列關鍵字

Life Cycle Cost Assessment ； Linear Regression ； Performance ； WMA

被引用紀錄

郭俊佑（2016）。以導電混凝土疏導軌道系統雜散電流的新方法〔碩士論文，淡江大學〕。華藝線上圖書館。https://doi.org/10.6846/TKU.2016.00674

林芸平（2016）。天氣、路線及性別對駕駛主客觀心智負荷之影響〔碩士論文，中原大學〕。華藝線上圖書館。https://doi.org/10.6840/cycu201600385

Chen, Z. Y. (2006). 智慧型家庭之動態個人偏好學習系統及環境感知服務提供 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2006.01860

Chen, L. M. (2004). 智慧型電子家庭之自動化個人偏好學習系統 [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2004.00543

陳雍仁（2011）。多重表徵在增強虛擬實境中的影響〔碩士論文，國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-1903201314424821

國際替代計量

Laboratory Performance Based Cost Assessment of Warm-Mix Asphalt Concrete Technologies

全文下載

主題瀏覽