玻化微珠-小麦秸秆双掺保温砂浆试验研究.pdfVIP

学兔兔 杆癯建魄 中国科技核心期刊 玻化微珠一小麦秸秆双撞 保温础浆试验研夯 张琳，刘福胜，林聪，任淑霞，张顺珂 (山东农业大学 水利土木工程学院，山东 泰安 271018) 摘要：通过试验，探索小麦秸秆预处理所需要的适宜氢氧化钠溶液浓度及浸泡时间；通过正交试验设计，选取玻化微珠、小麦秸 秆、粉煤灰和砂用量等4个影响因素进行正交试验，分析了4个影响因素对保温砂浆干密度、导热系数、抗压强度的影响。结果表明， 用浓度为3．5％氢氧化钠溶液浸泡小麦秸秆24 h进行预处理的效果较理想；通过正交试验得出保温砂浆的基础配合比，为进行保温 砂浆配合比优化提供数据支持。 关键词：玻化微珠；小麦秸秆；碱处理；保温砂浆 中图分类号：TU55 1；TQ177．6+9 文献标识码：B 文章编号：1001—702X(2013)07—0029—03 Research Oil vitreons beads-wheat straw insuJation mortar ZHANG Lin，LIU Fusheng，LIN Cong，REN Shuxia，ZHANG Shunke (College of Water Conservancy and Civil Engineering，Shandong Agricultural University，Tai an 271018，Shandong，China) Abstract：Through the physical test，appropriate sodium hydroxide solution concentration and soak time required for wheat straw pre-processing was explored，by orthogonal test design．four influencing factors，i．e．glazed hollow beads，wheat straw，fly ash， and sand dosage are selected to conduct orthogonal test，the influence of four factors to the dry density，coefficient of thermal con— ductivity，and compressive strength of the thermal insulation mortar were analyzed．The results indicate that the pre—processing ef- feet of dipping wheat straw in 3．5％ sodium hydroxide solution for 24 hours is idea1．The basic proportion of thermal insulation mortar obtained from orthogonal test provides data support for optimization of thermal mortar proportion． Key words：glazed hollow beads；Wheat straw；alkali treatment；thermal insulation mortal 保温性能。 O 引 言