Emergency paving using hot-mixed asphalt incorporating warm mix technology

作者：Howard Isaac L^*; Doyle Jesse D; Hemsley James Michael Jr; Baumgardner Gaylon L; Cooley L Allen Jr

来源：International Journal of Pavement Engineering, 2014, 15(3): 202-214.

DOI：10.1080/10298436.2012.721549

• asphalt
• emergency paving
• disaster
• rutting
• WMA

This paper presents results of a study on hot-mixed and warm-compacted asphalt incorporating warm mix technologies for use in emergency construction following a natural disaster. Case studies were first reviewed to investigate feasibility of the concept. Next, an overall emergency paving framework was developed, complemented by a two-component laboratory investigation. Component one developed a series of short-term ageing protocols for use in preparation of test specimens; component two evaluated those specimens for compactability and rut resistance. Results indicated that (1) material could be hauled up to 6h and still be effectively used in emergency paving, (2) the two warm mix additives studied improved compactability of hot-mixed and warm-compacted asphalt and (3) rut resistance was acceptable for emergency applications. A discussion on the post natural disaster permanent residual value of the hot-mixed and warm-compacted material is also provided.

• 出版日期2014-3-16