糯米浆对土遗址修复用三合土性能的影响  

Effect of Sticky Rice Paste on Properties of Tabia Used to Repair Ancient Earthen Ruins

作　　者：彭红涛[1] 张琪 李乃胜 王德发 

机构地区：[1]中国农业大学水利与土木工程学院,北京100083 [2]中建国际建设有限公司,北京100125 [3]中国文化遗产研究院,北京100029 [4]天津塘沽博物馆,天津300450

出　　处：《建筑材料学报》2011年第5期718-722,共5页Journal of Building Materials

基　　金：中央高校基本科研业务费专项资金资助项目(2009-3-11);"十一五"国家科技支撑计划项目(2008BADC4B03)

摘　　要：为考察糯米浆对土遗址原位置换修复用三合土性能的影响,将糯米浆按适当比例掺入两种配合比的土遗址修复用三合土,测得其28d无侧限抗压强度均比未掺糯米浆的三合土有所提高.选出掺糯米浆后强度提高幅度较大的一种配合比试件,并对该种试件进行渗透性能、色差试验和显微结构分析.结果表明:掺糯米浆三合土的渗透系数比未掺糯米浆三合土减小了85%,即其抗渗能力有较大提高;掺糯米浆与未掺糯米浆三合土间的色差较小;掺糯米浆三合土的显微结构形貌较未掺糯米浆三合土致密.In order to investigate the effect of sticky rice paste on properties of tabia used as in situ replacement to protect ancient earthen ruins, two tabias were mixed with sticky rice paste in designated proportions. The 28 d unconfined compressive strengths of the mixture were higher than those without sticky rice paste addition. The tabia of higher strength was selected, and the permeability and color of the higher strength samples were tested to determine the difference between the tabia and sticky rice tabia. The results indicate that the color difference value between the tabia and sticky rice tabia is small, and permeability coefficient of the sticky rice tabia is reduced by 85 % compared with that without sticky rice. That is, sticky rice tabia shows better permeation resistance. SEM morphology shows that the tabia sample is less dense than the sticky rice tabia.

关 键 词：糯米浆 土遗址 三合土 原位置换 

分 类 号：TU502[建筑科学—建筑技术科学]