Unconfined compressive strength properties of cement treated soil subjected to cyclic loading during curing period
Unconfined compressive strength properties of cement treated soil subjected to cyclic loading during curing period
复制标题
养护期间循环荷载作用下水泥处理土的无侧限抗压强度特性
DOI：
10.1007/978-981-15-2184-3_76
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Masaki Kitazume
中科院分区：
文献类型：
--
作者：
Shinichiro Takayama;Kiyonobu Kasama;Masaki Kitazume
本文的目的是阐明水泥处理粘土在循环荷载作用下的强度特性。本试验针对粘土类型、水泥掺量和矿渣掺量进行了一系列无侧限压缩试验，以提高强度恢复、循环加载的时间和水平。得到以下结论。1)水泥处理粘土在养护过程中加入循环加载后，强度没有明显降低。2)循环加载时试件的变形模量比未循环加载时增大4倍。(3)水泥处理粘土在养护前期（如养护7天）进行循环加载时，强度随粗粒级高炉矿渣掺量的增加而增加。4)在养护后期（如养护28天）进行循环荷载时，无论循环荷载如何，其强度基本不变。
The objective of this paper is to clarify the strength property of cement-treated clay subjected to cyclic loading during curing period. In this experiment, a series of unconfined compression tests was conducted in term of the clay type, the cement content and slag content to enhance the strength recovery, the timing and level of cyclic loading. The following conclusions are obtained. 1) No significant strength reduction is observed for cement-treated clay when cyclic loading is introduced during curing period. 2) The deformation modulus during cyclic loading increase 4 times of the specimen without cyclic loading. 3) When cyclic loading is subjected to cement- treated clay at the early stage of curing period (such as 7 curing day), the strength increases with increasing Ground-granulated blast furnace slag content. 4) When cyclic loading is subjected in the last stage of curing period (such as 28 curing day), the strength is almost constant irrespective of cyclic loading.