2005-2006年,笔者参加了非洲莫桑比克共和国EN1公路169合同段改建工程的施工,在水泥稳定砂基层施工过程中,曾出现“饼干”、“碗”状物、斜茬、强度低、错台、夹杂、凸块痕迹、素土夹层、接头跳车等缺陷,并造成不少基层返工。后来随着施工工艺的逐渐成熟和对砂的性质了解进一步深入,以上现象都顺利解决。本文就水泥稳定砂基层出现的各种缺陷进行分析、论述。 From 2005 to 2006, the author participated in the construction of Contract Section 169 of EN1 Highway in Mozambique, Africa. During the process of cement stabilized sand base construction, there appeared “biscuit”, “bowl” Low, wrong Taiwan, mixed, bump marks, plain sand, joints and other defects, and caused a lot of grassroots rework. Later, with the gradual maturity of the construction process and the further understanding of the nature of the sand, all the above problems were solved smoothly. This article analyzes and discusses various defects that occur in cement stabilized sand base.