米浆种类对传统灰浆性能的影响

发布时间：2018-09-06 06:47

【摘要】：在传统灰浆中添加不同种类米浆,然后测试灰浆稠度、表面硬度、抗压强度、收缩率和耐冻融性,观察分析灰浆的微观形貌和结构,探讨米浆种类对灰浆性能的影响及作用机理.结果表明:糯米、糯黄米、血糯米、大米和高粱米米浆的添加,均使灰浆的稠度和收缩率降低,表面硬度、抗压强度和耐冻融性提高;在各种米浆灰浆中,糯黄米灰浆的综合性能最佳,其28d抗压强度和60d抗压强度较纯灰浆分别提高了103.6%和69.4%,耐冻融性提高了150%.建议在砖石质文物保护中使用糯黄米浆作为灰浆的有机添加剂.米浆灰浆良好的力学性能源于米浆灰浆的细密结构,与米浆中的支链淀粉含量相关.
[Abstract]:The consistency, surface hardness, compressive strength, shrinkage and freeze-thaw resistance of the mortar were tested, and the microstructure and morphology of the mortar were observed and analyzed. The effect of rice pulp on the properties of mortar and its mechanism were discussed. The results showed that the consistency and shrinkage of mortar were decreased, the surface hardness, compressive strength and freeze-thaw resistance were improved with the addition of glutinous rice, waxy yellow rice, black sticky rice, rice and sorghum Mimi pulp. The comprehensive properties of waxy yellow rice mortar were the best, its 28d compressive strength and 60-day compressive strength were 103.6% and 69.4% higher than those of pure mortar, respectively, and the freeze-thaw resistance was increased by 150%. It is suggested that waxy yellow rice pulp be used as organic additive of mortar in the protection of masonry relics. The good mechanical properties of rice pulp come from the fine structure of rice pulp, which is related to the amylopectin content in rice pulp.
【作者单位】：安徽大学历史系;浙江工业大学化学工程与材料学院;湖北省文物考古研究所;浙江大学文物与博物馆学系;
【基金】：国家文化科技提升计划项目([2013]718) “十二五”国家科技支撑计划项目(2012BAK14B05) 安徽大学“211”三期博士科研启动经费资助项目(32030039)
【分类号】：TU52

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