摘要
以青海省东部常见的庒廓建筑为研究对象,在青稞秸秆纤维及石子改性夯土试件的基础上添加聚乙烯醇、固化剂、防水剂等材料,进行浸水试验、盐蚀试验、冻融循环试验,研究试件的耐久性能,分析破坏机理、耐久性试验现象及试件试验前后无侧限抗压强度变化规律。结果表明:0.8%质量分数的聚乙烯醇对青稞秸秆纤维及石子试件的力学性能和耐久性能有着良好的改善作用。
Taking the Zhuangkuo residential buildings common in eastern Qinghai Province as the research object,the rammed soil samples modified by highland barley straw fiber and gravels were mixed with polyvinyl alcohol,curing agent,waterproof agent and other materials,and thus the durability of the samples was studied by the immersion test,salt corrosion test and freeze-thaw cycle test,analyzing the failure mechanism,durability test phenomenon and the change law of unconfined compressive strength of the samples before and after the tests.The results showed that 0.8%polyvinyl alcohol can improve the mechanical properties and durability of highland barley straw fiber and stone samples.
作者
李航航
李辉
蒋宁山
赵国智
Li Hanghang;Li Hui;Jiang Ningshan;Zhao Guozhi
出处
《重庆建筑》
2021年第7期56-59,共4页
Chongqing Architecture
基金
青海省高原绿色建筑与生态社区重点实验项目“青海地区村镇改性夯土墙房屋耐久性及震害数值模拟”(KLKF-2018-006)
青海省科学技术厅项目“青海地区非饱和黄土的土水特性与潜蚀湿陷性关系的研究及数值实现”(2016-ZJ-766)
青海大学教研重点项目“基于创新应用型土木工程专业人才培养的“四维一体”教学体系综合改革的研究与实践”(JY201806)。
关键词
改性夯土
聚乙烯醇
力学性能
耐久性
庒廓建筑
modified rammed soil
polyvinyl alcohol
mechanical properties
durability
Zhuangkuo residential building
