Cold in-place recycling (CIR) is a pavement rehabilitation treatment which has shown promise in terms of environmental benefits, cost savings, and successful performance. Current procedures for asphalt emulsion CIR mix design, AASHTO PP86 and AASHTO MP31, address mixture proportion selection and final performance prediction but do not consider performance of the material during the construction process. This research proposed the addition of three intermediate stages into asphalt emulsion CIR mix design: workability, compactability, and cohesion gain. Equipment commonly available in asphalt laboratories was evaluated for ability to quantify workability, compactability, and cohesion gain by measuring differences in performance due to changes in curing conditions. Cure temperature generally had a more significant influence on test results than cure time. Superpave Gyratory Compaction (SGC) metrics were recommended for quantifying workability and compactability. The direct shear test showed promise for quantifying cohesion gain moving forward based on agreement with the triaxial test.

就地冷回收 (CIR) 是一种路面修复处理方法，在环境效益、成本节约和成功性能方面显示出前景。当前的沥青乳液 CIR 混合设计程序，AASHTO PP86 和 AASHTO MP31，解决了混合比选择和最终性能预测，但没有考虑施工过程中材料的性能。该研究建议在沥青乳液 CIR 混合设计中添加三个中间阶段：和易性、压实性和内聚力增益。通过测量固化条件变化导致的性能差异，对沥青实验室中常用的设备进行量化和易性、压实性和内聚力增益的能力进行评估。固化温度对测试结果的影响通常比固化时间更显着。推荐使用 Superpave 旋转压实 (SGC) 指标来量化和易性和压实性。直接剪切试验显示出基于与三轴试验一致的量化内聚力增益的前景。