Title :
Trial study on strength and its influence factors of low dosage cement stabilized aggregates
Author :
Yu Hai-chen ; Sun li-jun
Author_Institution :
Key Lab. of Road & Traffic Eng., Minist. of Educ., Shanghai, China
Abstract :
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.
Keywords :
aggregates (materials); cements (building materials); compressive strength; cracks; mechanical testing; road building; anti-crack cement stabilized macadam base; compressive modulus; inorganic binders; low dosage cement stabilized aggregate; mechanical testing; optimum water content; pavement reflection cracks; splitting strength; structure bearing capacity; Aggregates; Laboratories; Publishing; Resilience; Roads; Sun; compressive modulus of resilience; low dosage cement stabilized aggregates; road engineering; splitting tensile strength; unconfined compressive st rength;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5776142