Including asphalt cooling and rolling regimes in laboratory compaction procedures

摘要: Given the various changes occurring in asphalt construction industry, improved process and quality control is becoming essential. The significance of appropriate rolling compaction for widely acknowledged vital control. But what constitutes are instructions operators? Existing laboratory procedures generate a single temperature based on binder viscosity. However, practice, roller operators choose windows terms both time activities. This makes it difficult to design give proper operators. This research project has aimed (1) develop that take account cooling during (2) determine effects different strategies quality. Field processes two mixtures, an AC 16 base/bind SMA 11 surf, were simulated using applying regimes slab compactor 2.5 ton produce 500 mm square slabs. resultant densities Indirect Tensile Strengths (dry retained) assessed cores drilled from each slab. The experimental results show can be important within clearly defined windows. If surf compacted outside optimal window, or sub-optimal strategy, density may drop by 30 kg/m3 Strength fall up 10%. Such if one operators. Also, help close gap between field techniques. Overall, reflect valuable step quest toward