基于响应面法的半水磷石膏复合胶凝材料优化设计及性能研究

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (2): 626-636.

所属专题：资源综合利用

基于响应面法的半水磷石膏复合胶凝材料优化设计及性能研究

樊璐洋¹, 金子豪¹, 苏英¹, 崔程嘉¹, 王斌²

1.湖北工业大学土木建筑与环境学院,武汉 430068;
2.湖北三峡实验室,宜昌 443000

收稿日期:2022-10-01 修订日期:2022-11-12 出版日期:2023-02-15 发布日期:2023-03-07
通信作者: 金子豪,博士,讲师。E-mail:xiaohao19930113@163.com
作者简介:樊璐洋(2002—),女。主要从事工业副产石膏的研究。E-mail:1048232091@qq.com
基金资助:
湖北三峡实验室开放基金(SK211011);湖北省重点研发计划(2020BCA077)

Optimization Design and Performance Study of Hemihydrate Phosphogypsum Cementitious Material Based on Response Surface Method

FAN Luyang¹, JIN Zihao¹, SU Ying¹, CUI Chengjia¹, WANG Bin²

1. School of Civil Architecture and Environment, Hubei University of Technology, Wuhan 430068, China;
2. Hubei Three Gorges Laboratory, Yichang 443000, China

Received:2022-10-01 Revised:2022-11-12 Online:2023-02-15 Published:2023-03-07

摘要/Abstract

摘要： 为实现工业副产品磷石膏的资源化利用,本文基于响应面法中的中心复合试验法,选择硫铝酸盐水泥(SAC)和蛋白类缓凝剂(SC)掺量作为配比变量,对半水磷石膏复合胶凝材料(HPCM)进行性能优化,制备高性能HPCM。通过数据处理,得到变量与1 d抗压强度、绝干抗压强度、初凝时间和终凝时间的响应面曲线,建立相应的响应面模型。结果表明,SAC和SC掺量最优值分别为20.48%(质量分数)和0.12%(质量分数),测得HPCM的绝干抗压强度为23.1 MPa,初凝时间为38 min,HPCM力学性能、工作性能等皆良好。基于水化进程及水化产物组成进行分析,主要是矿物相改变造成的新水化产物的生成改善了体系微观结构组成,从而优化了性能。

关键词: 磷石膏, 响应面法, 凝结时间, 力学性能, 物相组成, 微观结构

Abstract: In order to realize the resource utilization of industrial by-product phosphogypsum, based on the central composite design method in response surface method, sulfoaluminate cement (SAC) and protein retarder (SC) content were selected as variables to optimize the performance of hemihydrate phosphogypsum cementitious material (HPCM) and prepare high performance HPCM. The response surface curves of relationship between the variables and 1 d compressive strength, dry compressive strength, initial setting time and final setting time were obtained through data processing, and the corresponding response surface models were established. The results show that the optimal mass content of SAC and SC is 20.48% and 0.12%, respectively. The dry compressive strength of HPCM is 23.1 MPa and the initial setting time is 38 min. The mechanical properties and working properties of HPCM are good. Based on the analysis of the hydration process and the composition of hydration products, it is mainly that the change of mineral phase leads to the generation of new hydration products, which improves the microstructure of the system, so as to optimize the performance.

Key words: phosphogypsum, response surface method, setting time, mechanical property, phase composition, microstructure

中图分类号:

TU52

樊璐洋, 金子豪, 苏英, 崔程嘉, 王斌. 基于响应面法的半水磷石膏复合胶凝材料优化设计及性能研究[J]. 硅酸盐通报, 2023, 42(2): 626-636.

FAN Luyang, JIN Zihao, SU Ying, CUI Chengjia, WANG Bin. Optimization Design and Performance Study of Hemihydrate Phosphogypsum Cementitious Material Based on Response Surface Method[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(2): 626-636.

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基于响应面法的半水磷石膏复合胶凝材料优化设计及性能研究

Optimization Design and Performance Study of Hemihydrate Phosphogypsum Cementitious Material Based on Response Surface Method

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