不同成型方式的水泥碎石性能对比
发布时间：2018-12-11 09:00
【摘要】：为更准确地控制施工质量,并进一步提高水泥碎石的路用性能,系统研究了振动成型方式下的水泥碎石最大干密度、无侧限抗压强度、抗裂能力、弯拉强度及抗疲劳能力等,并与静压成型结果进行了对比.同时将现场芯样的无侧限抗压强度及压实程度与室内试验结果进行对比,以验证室内成型方式的合理性.结果表明,振动成型能够更有效地模拟现场碾压方式,采用振动成型设计的水泥碎石路用性能有较大幅度的提高,采用振动成型设计标准控制水泥碎石基层施工更为合理.
[Abstract]:In order to control the construction quality more accurately and further improve the road performance of cement macadam, the maximum dry density, unconfined compressive strength, crack resistance, flexural tensile strength and fatigue resistance of cement macadam under vibration molding are systematically studied. The results are compared with the results of hydrostatic molding. At the same time, the unconfined compressive strength and compaction degree of the core samples were compared with the results of laboratory tests to verify the rationality of the indoor molding method. The results show that vibration molding can more effectively simulate the field compaction mode, the road performance of cement crushed stone designed by vibration molding can be greatly improved, and it is more reasonable to use vibration forming design standard to control the construction of cement macadam base course.
【作者单位】： 天津大学管理与经济学部;天津市市政工程研究院;
【基金】：新世纪优秀人才支持计划项目(NCET-10-0277)
【分类号】：U414
[Abstract]:In order to control the construction quality more accurately and further improve the road performance of cement macadam, the maximum dry density, unconfined compressive strength, crack resistance, flexural tensile strength and fatigue resistance of cement macadam under vibration molding are systematically studied. The results are compared with the results of hydrostatic molding. At the same time, the unconfined compressive strength and compaction degree of the core samples were compared with the results of laboratory tests to verify the rationality of the indoor molding method. The results show that vibration molding can more effectively simulate the field compaction mode, the road performance of cement crushed stone designed by vibration molding can be greatly improved, and it is more reasonable to use vibration forming design standard to control the construction of cement macadam base course.
【作者单位】： 天津大学管理与经济学部;天津市市政工程研究院;
【基金】：新世纪优秀人才支持计划项目(NCET-10-0277)
【分类号】：U414
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