广东工业大学学报 ›› 2021, Vol. 38 ›› Issue (04): 103-110.doi: 10.12052/gdutxb.200105

• • 上一篇    

石材废渣粉对纤维砂浆新拌性能控制因素的影响研究

夏勇, 陈嘉健, 李子宏, 马岸民   

  1. 佛山科学技术学院 交通与土木建筑学院, 广东 佛山 528000
  • 收稿日期:2020-08-17 出版日期:2021-07-10 发布日期:2021-05-25
  • 通信作者: 陈嘉健(1985-)，男，副教授，博士，主要研究方向为新型建筑材料与结构，E-mail：chenjiajian@fosu.edu.cn E-mail:chenjiajian@fosu.edu.cn
  • 作者简介:夏勇(1995-)，男，硕士研究生，主要研究方向为新型建筑材料与结构
  • 基金资助:
    广东省高校省级重点平台和重大科研项目(2018GXJK197)；佛山科学技术学院自由探索基金资助项目(2019ZYTS29)

A Study on the Influence of Waste Stone Powder on the Control Factor of Fiber Mortar Fresh Properties

Xia Yong, Chen Jia-jian, Li Zi-hong, Ma An-min   

  1. School of Transportation, Civil Engineering and Architecture, Foshan University, Foshan 528000, China
  • Received:2020-08-17 Online:2021-07-10 Published:2021-05-25

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摘要： 掺入石材废渣粉可以改善纤维砂浆或纤维混凝土的力学性能, 但同时显著降低其新拌性能。为探索掺入石材废渣粉置换等体积标准砂的聚丙烯纤维砂浆新拌性能的控制因素, 测量了20组不同水灰比、不同石材废渣粉置换量下纤维砂浆的流速、扩展度、粘聚性、粘附性和填充密度, 计算出平均液层厚度和平均泥浆层厚度。结果显示平均液层厚度和平均泥浆层厚度与流速、扩展度、粘聚性、粘附性测量结果有良好的相关性。通过线性回归分析, 纤维砂浆流速和粘附性的控制因素是平均液层厚度, 而扩展度和粘聚性的控制因素是平均液层厚度和平均泥浆层厚度。

关键词: 废渣粉, 平均液层厚度, 平均泥浆层厚度, 填充密度, 纤维砂浆

Abstract: The addition of waste stone powder to fibre mortar or fibre concrete can improve its mechanical property, but the fresh property would be decreased. In order to explore the governing factors of the fresh property of the polypropylene fibre mortar with the waste stone powder replacing the equal volume of the standard sand, 20 fibre mortar mixes with different water cement ratios and different volume contents of the waste stone powder are produced for flowability, cohesiveness, adhesiveness and packing density measurement. Based on the packing density results, the average liquid thickness (ALT) and average paste thickness (APT) of the fibre mortar mixes are calculated. The results showed that the ALT and APT have good correlation with the test results of flow rate, flow spread, cohesiveness and adhesiveness. According to the results of regression analysis, it is found that the ALT is the major factor governing the flow rate and adhesiveness, and the ALT and APT are the major factors governing the flow spread and cohesiveness.

Key words: waste stone powder, average liquid thickness, average paste thickness, packing density, fibre mortar

中图分类号: 

  • TU528.52
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[1] 温梦丹, 陈嘉健, 高御审, 马岸民. 基于水膜厚度假设分析磨细高炉矿渣对水泥浆性能影响[J]. 广东工业大学学报, 2018, 35(04): 119-126.
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