Trial study on strength and its influence factors of low dosage cement stabilized aggregates

In order to investigate the strength of low dosage cement stabilized aggregates, and to provide reference for mixture design of anti-crack cement stabilized macadam base,intensity of pressure,splitting strength, compressive modulus of resilience and CBR were tested. Test results showed that low dosage cement stabilized aggregates much differ from conventional cement stabilized aggregates, when cement content was less than 5%, Cement dosage changes had little effect on maximum dry density, optimum water content rose as the increase of cement dosage. low dosage cement stabilized macadam with mechanical properties closed to inorganic binders, but it had higher structure bearing capacity than inorganic binders. Through reasonable structure combination design, use of low dosage cement stabilized aggregates can reduce compressive modulus of resilience in road base, and reduce pavement reflection cracks.