EXPERIMENTAL STUDY ON COMPRESSIVE RESILIENT MODULUS OF POLYPROPYLENE FIBER REINFORCED CEMENT STABILIZED MACADAM

Based on plenty of experiment results,the effect of curing period of specimens,volume content of polypropylene fiber and cement content on compressive resilient modulus of cement stabilized macadam is analyzed,and the corresponding influencing rules are drawn. The study results indicate that the addition of polypropylene fiber can decrease the compressive resilient modulus of cement stabilized macadam evidently. The compressive resilient modulus is increasing with the increase of curing period. Within the range of the fiber content in this study (the volume content 1),there is a tendency of decrease in compressive resilient modulus with the increase of polypropylene fiber volume content. With the increase of cement content,the compressive resilient modulus of cement stabilized macadam is increasing linearly.