- 目录
- 建筑石膏与胶凝材料
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改良钛石膏无侧限抗压强度研究
作者：孟维正，刘伟杰，曹新文
（西南交通大学 道路工程四川省重点实验室，四川 成都 610031）
摘要：对钛石膏及其复合体系进行化学成分分析及击实、无侧限抗压强度等试验。钛石膏高含水率时会出现类似橡皮土性质，需掺加水泥或石灰等进行改良。钛石膏复合体系无侧限抗压强度与水泥、石灰掺量等成正比，复掺较单掺效果更好，掺量不大于干土质量1%时强度无明显提高。钛石膏复合体系受压呈锥形脆性破坏特征。
关键词：钛石膏；无侧限抗压强度；水稳定性；破坏特征
中图分类号：TU526；TQ177.3+75 文献标识码：A 文章编号：1001-702X（2019）07-0028-04
Research on the unconfined compressive strength of modified titanium gypsum
MENG Weizheng，LIU Weijie，CAO Xinwen
（Southwest Jiaotong University，Highway Engineering Key Laboratory of Sichuan Province，Chengdu 610031，China）
Abstract：Tests include chemical composition analysis，compaction test，the unconfined compression strength test to the titanium gypsum and amendment. Titanium gypsum need to add some cement or lime because it will appear the similar character of rubbery clay that titanium gypsum reach the high water ratio. The value of unconfined compressive strength is proportional to the weight of cement and lime，and it will be higher when we add cement and lime together，but it won't change nearly when addition no more than one percent of weight of dry ground. Titanium gypsum and amendment compressed present coniform brittle failure.
Key words：titanium gypsum，unconfined compressive strength，water stability，failure features