交通与运输工程

不同成型方式的水泥碎石性能对比

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  • 1.天津大学 管理与经济学部,天津 300073; 2.天津市市政工程研究院,天津 300074
魏宏云(1963-),男,博士生,正高级工程师,主要从事工程项目管理与道路结构和材料研究.

收稿日期: 2014-02-19

  修回日期: 2014-06-10

  网络出版日期: 2014-07-01

基金资助

新世纪优秀人才支持计划项目( NCET-10-0277)

Performance Comparison of Cement Macadam Based on Different Molding Methods

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  • 1.College of Management and Economics,Tianjin University ,Tianjin 300073,China;2.Tianjin Municipal & Highway Engineering Research Institute,Tianjin 300074,China
魏宏云(1963-),男,博士生,正高级工程师,主要从事工程项目管理与道路结构和材料研究.

Received date: 2014-02-19

  Revised date: 2014-06-10

  Online published: 2014-07-01

Supported by

新世纪优秀人才支持计划项目( NCET-10-0277)

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.

本文引用格式

魏宏云 周卫峰 李源渊 . 不同成型方式的水泥碎石性能对比[J]. 华南理工大学学报(自然科学版), 2014 , 42(8) : 84 -90 . DOI: 10.3969/j.issn.1000-565X.2014.08.014

Abstract

In order to control the construction quality more accurately and to further improve the pavement performanceof the cement macadam,this paper deals with the cement macadam obtained through the vibration molding methodin terms of the maximum dry density,the unconfined compressive strength,the crack resistance,the flexural andtensile strength,the fatigue resistance,etc.Then,the results are compared with those of the isostatic pressingmethod.Meanwhile,the unconfined compressive strength and compaction degree of the field core samples are comparedwith the laboratory test results,so as to verify the reasonableness of the interior molding method.It is foundthat the vibration molding can simulate the field compaction method more effectively and the vibration moldingmethod dramatically increases the pavement performance of the cement macadam,so it is more reasonable to adoptthe vibration molding design standards to control the cement macadam base construction.

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