[1]陈新孝,周述光,王有熙,等.牛粪灰(CMA)颗粒尺寸对水泥浆流变性的影响试验研究[J].西安建筑科技大学学报(自然科学版),2019,(06):804-813.[doi:10.15986/j.1006-7930.2019.06.006]
 CHEN Xinxiao,ZHOU Shuguang,WANG Youxi,et al.Experimental research on effect of the particle size of CMA to cement slurry rheological properties[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,(06):804-813.[doi:10.15986/j.1006-7930.2019.06.006]
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牛粪灰(CMA)颗粒尺寸对水泥浆流变性的影响试验研究()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
期数:
2019年06期
页码:
804-813
栏目:
出版日期:
2019-12-31

文章信息/Info

Title:
Experimental research on effect of the particle size of CMA to cement slurry rheological properties
文章编号:
1006-7930(2019)06-0804-10
作者:
陈新孝1周述光2王有熙1陈均1李思1
(1. 西京学院 陕西省混凝土结构安全与耐久性重点实验室,陕西 西安 710123;2.武警后勤学院 后勤保障系,天津 300309)
Author(s):
CHEN Xinxiao1 ZHOU Shuguang2 WANG Youxi1 CHEN Jun1 LI Si1
(1. Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi′an 710123, China;2. Department of Logistics Equipment Support, Logistics University of PAP., Tianjin 300309, China)
关键词:
牛粪灰(CMA)颗粒尺寸水泥浆流变性灰色关联分析
Keywords:
cattle manure ash particle size cement slurry rheological grey relational analysis
分类号:
TU528.0
DOI:
10.15986/j.1006-7930.2019.06.006
文献标志码:
A
摘要:
牛粪灰(简称CMA)是一种质纯且成分相对单纯和稳定的生物质灰.目前有关用CMA取代部分水泥配制绿色混凝土方面的研究主要侧重于CMA的物理化学特性对其强度的影响,而极少关注CMA的物理本征对其和易性的影响.本文应用激光粒度分析仪、SEM、透气法等测试了CMA的颗粒尺寸及其分布;采用旋转粘度计测试了三种CMA水泥混合浆体的粘度,计算了浆体剪切应力屈服值.通过灰色关联对比分析得知:CMA掺量(或水泥替代量)不宜大于15%,且3~32 μm的CMA颗粒为适合水泥浆量变性能最可几分布.该结论将为深入研究CMA混凝土的和易性提供理论依据.
Abstract:
Cattle manure ash (abbreviated CMA) is a pure, nontoxic and harmful component of biomass ash. The research of using CMA to substitute part of cement in preparing green concrete mainly focuses on the influence of physical chemistry properties of CMA on its strength, and pays little attention to the influence of physical properties of CMA on its workability. In this paper, the particle size and its distribution of CMA are measured by laser particle size analyzer, SEM and permeability method, and the viscosity of three kinds of CMA cement paste is measured by Rotational viscometer. Through the analysis of gray correlation, it is found that the mixing amount of CMA (or cement substitution) should not be greater than 15%, and the CMA particles of 3~32 μm are the most suitable distribution to the rheological properties of cement slurry. This conclusion will provide a theoretical basis for further study on workability of CMA concrete.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-03-22修改稿日期:2019-11-22
基金项目:天津市自然科学基金项目(16JCYBJC21800,19YFZCSN01140)
第一作者:陈新孝(1964-),男,博士,教授,主要从事绿色建筑材料及混凝土耐久性问题研究. E-mail: chenxinxiao@126.com
通信作者:周述光(1973-),男,博士,副教授,主要从事混凝土材料性能和绿色建筑研究. E-mail: zhouzsg_1019@sina.com
更新日期/Last Update: 2020-01-20