Cement Grouted Bituminous Mix (CGBM) is a composite material, in which air voids present in the bituminous mix are grouted with a cementitious material. The main aim of this study is to develop and evaluate CGBM in the laboratory and field. A conventional dense graded Bituminous Concrete (BC) mix is also considered for comparison. This paper presents the details of different investigations carried out for evaluation of CGBM mix for properties such as Indirect Tensile Strength (ITS), Resilient Modulus and Dynamic Modulus at different temperatures. Performance characteristics such as rutting, fracture energy, moisture resistance, oil spillage and durability were also evaluated for the mixes. A CGBM test section has been laid on site and is being monitored for its performance. Results show that CGBM has better ITS, Resilient Modulus, Dynamic Modulus, and Rutting performance than a conventional bituminous mix. It shows a slight reduction in durability and crack resistance due to the relative brittleness of the hardened cement constituent but within acceptable limits. The material is also more resistant to damage by moisture and diesel. CGBM mixes are less temperature susceptible compared to conventional bituminous mix. Dynamic Modulus and Phase Angle master curves for CGBM mixes have been developed in the study. Full depth grouting was observed in field core samples and Micro Computed Tomography (Micro-CT) tests were carried out to check the air voids connectivity and their content in the CGBM mix.

水泥灌浆的沥青混合料（CGBM）是一种复合材料，其中沥青混合料中存在的气孔用水泥材料灌浆。这项研究的主要目的是在实验室和现场开发和评估CGBM。还考虑使用常规的致密渐变沥青混凝土（BC）混合物进行比较。本文介绍了为评估CGBM混合物的性能而进行的不同研究的详细信息，这些性能包括在不同温度下的间接拉伸强度（ITS），弹性模量和动态模量。还评估了混合物的车辙，断裂能，耐湿性，漏油性和耐久性等性能特征。已经在现场放置了CGBM测试部分，并对其性能进行监控。结果表明，CGBM具有更好的ITS，弹性模量，动态模量，和车辙性能优于传统的沥青混合料。由于硬化的水泥成分的相对脆性，在耐久性和抗裂性方面略有降低，但在可接受的范围内。该材料还更耐潮湿和柴油破坏。与传统的沥青混合料相比，CGBM混合料对温度的敏感性较低。在研究中已经开发了CGBM混合物的动态模量和相角主曲线。在现场岩心样品中观察到全深度灌浆，并进行了微型计算机断层扫描（Micro-CT）测试，以检查气孔连通性及其在CGBM混合物中的含量。由于硬化水泥成分的相对脆性，在耐久性和抗裂性方面略有降低，但在可接受的范围内。该材料还更耐潮湿和柴油破坏。与传统的沥青混合料相比，CGBM混合料对温度的敏感性较低。在研究中已经开发了CGBM混合物的动态模量和相角主曲线。在现场岩心样品中观察到全深度灌浆，并进行了微型计算机断层扫描（Micro-CT）测试，以检查气孔连通性及其在CGBM混合物中的含量。由于硬化的水泥成分的相对脆性，在耐久性和抗裂性方面略有降低，但在可接受的范围内。该材料还更耐潮湿和柴油破坏。与传统的沥青混合料相比，CGBM混合料对温度的敏感性较低。在研究中已经开发了CGBM混合物的动态模量和相角主曲线。在现场岩心样品中观察到全深度灌浆，并进行了微型计算机断层扫描（Micro-CT）测试，以检查气孔连通性及其在CGBM混合物中的含量。在研究中已经开发了CGBM混合物的动态模量和相角主曲线。在现场岩心样品中观察到全深度灌浆，并进行了微型计算机断层扫描（Micro-CT）测试，以检查气孔连通性及其在CGBM混合物中的含量。在研究中已经开发了CGBM混合物的动态模量和相角主曲线。在现场岩心样品中观察到全深度灌浆，并进行了微型计算机断层扫描（Micro-CT）测试，以检查气孔连通性及其在CGBM混合物中的含量。