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2022 08 v.50 2119-2128
高强预糊化糯米灰浆制备与力学性能提升机制
基金项目(Foundation): 湖北省教育厅科学研究计划(D20211405); 广西建筑新能源与节能重点实验室开放基金(桂科能19-J-22-6)基金项目类别; 湖北工业大学大学生创新创业训练计划项目(201810500088)
邮箱(Email):
DOI: 10.14062/j.issn.0454-5648.20210986
中文作者单位:

湖北工业大学材料与化学工程学院;广西建筑新能源与节能重点实验室桂林理工大学;

摘要(Abstract):

为提高传统糯米灰浆的力学性能,以预糊化糯米为增强剂,通过加速碳酸化养护得到高强预糊化糯米灰浆(HPR-LM)。研究了预糊化糯米掺量和水固比对HPR-LM反应程度与力学性能的影响规律和作用机制。结果表明:水固比为0.3时,反应介质水充足,孔隙率较高,HPR-LM的反应程度达到最高,预糊化糯米作用下饱和Ca(OH)2溶液电导率与pH值变化减缓,HPR-LM反应温升降低,HPR-LM的碳酸化反应被抑制,预糊化糯米分子链模板作用使CaCO3沉淀形成纺锤状方解石;当预糊化糯米掺量为3%时,方解石晶粒尺寸达到最小,颗粒堆积最为致密,HPR-LM抗压强度较纯石灰灰浆提升56.8%。

关键词(KeyWords): 糯米灰浆;预糊化糯米;加速碳酸化;力学性能
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基本信息:

DOI:10.14062/j.issn.0454-5648.20210986

中图分类号:TU528

引用信息:

[1]曹泽杰,陆建鸿,张运华.高强预糊化糯米灰浆制备与力学性能提升机制[J].硅酸盐学报,2022,50(08):2119-2128.DOI:10.14062/j.issn.0454-5648.20210986.

基金信息:

湖北省教育厅科学研究计划(D20211405); 广西建筑新能源与节能重点实验室开放基金(桂科能19-J-22-6)基金项目类别; 湖北工业大学大学生创新创业训练计划项目(201810500088)

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