基于响应面法的石灰石煅烧黏土复合胶凝材料体系优化设计和试验研究

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (10): 3677-3685.

基于响应面法的石灰石煅烧黏土复合胶凝材料体系优化设计和试验研究

翟宸^1,2, 张庆年³, 黄剑锋⁴, 邱树恒², 陈小鹏², 童张法¹

1.广西大学化学化工学院,南宁 530004;
2.广西大学广西碳酸钙产业化工程院,广西钙基材料协同创新中心,南宁 530004;
3.崇左南方水泥有限公司,崇左 532200;
4.广西大都混凝土集团有限公司,南宁 530031

收稿日期:2024-03-11 修订日期:2024-04-26 出版日期:2024-10-15 发布日期:2024-10-16
通信作者: 童张法,博士,教授。E-mail:zhftong@sina.com
作者简介:翟宸(1999—),男,硕士研究生。主要从事建筑材料的研究。E-mail:1622215460@qq.com
基金资助:
国家自然科学基金(NSFC22168004);广西钙基材料协同创新研究中心项目(GJZX2022-1)

Optimal Design and Experimental Study on Limestone Calcined Clay Composite Cementitious Material System Based on Response Surface Method

ZHAI Chen^1,2, ZHANG Qingnian³, HUANG Jianfeng⁴, QIU Shuheng², CHEN Xiaopeng², TONG Zhangfa¹

1. College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China;
2. Guangxi Cooperative Innovation Centre for Calcium-Based Materials (GCICCM), Guangxi Engineering Academy for Calcium Carbonate Industry, Guangxi University, Nanning 530004, China;
3. Chongzuo South Cement Co., Ltd., Chongzuo 532200, China;
4. Guangxi Dadu Concrete Group Co., Ltd., Nanning 530031, China

Received:2024-03-11 Revised:2024-04-26 Published:2024-10-15 Online:2024-10-16

摘要/Abstract

摘要： 为探索石灰石煅烧黏土复合胶凝材料体系中石灰石粉和煅烧黏土的最优配合比,本文采用响应面法进行优化试验研究,以普通硅酸盐水泥、煅烧黏土和石灰石粉掺量作为控制变量,砂浆的28 d抗压强度及28 d抗折强度为响应变量进行力学性能测试,建立矿物掺合料复配比例与力学性能之间的回归模型。在矿物掺合料为15%、30%、45%(质量分数,下同)的条件下,采用回归模型对石灰石煅烧黏土复合胶凝材料体系中石灰石粉与煅烧黏土的配合比进行优化,优化结果分别为:煅烧黏土占比15%,不含石灰石粉;煅烧黏土占比25%,石灰石粉占比5%;煅烧黏土占比30.5%,石灰石粉占比14.5%。上述体系的28 d抗压强度预测值分别为63.26、58.57、48.10 MPa,试验实测值分别为63.74、57.21、47.02 MPa,预测值与实测值之间的相对误差均小于5%。本研究为石灰石煅烧黏土复合胶凝材料体系最优配合比问题提供了新的解决思路和试验参考。

关键词: 复合胶凝材料, 煅烧黏土, 石灰石, 配合比优化, 响应曲面, 力学性能

Abstract: To explore the optimal ratio of limestone powder and calcined clay in the limestone calcined clay composite cementitious material system, the response surface method was adopted to optimize. The prediction model was established by taking ordinary Portland cement, calcined clay and limestone powder as variable factors, and 28 d compressive strength and 28 d flexural strength of cement mortar as response variable. Mechanical properties were tested, and the regression model between the proportion of mineral admixture compounding and the mechanical properties was established. At the conditions of mineral admixture proportion of 15%, 30% and 45% (mass fraction, the same below), the regression model was used to optimize the mixing ratio of limestone powder and calcined clay in the limestone calcined clay composite cementitious material system. The optimization results are as follows: calcined clay accounts for 15%, without limestone powder. Calcined clay accounts for 25%, and limestone powder accounts for 5%. Calcined clay accounts for 30.5%, and limestone powder accounts for 14.5%. The predicted values of 28 d compressive strength of system are 63.26, 58.57 and 48.10 MPa, respectively, while the measured values are 63.74, 57.21 and 47.02 MPa, respectively. The absolute relative errors between the predicted and measured values are less than 5%. It provides a new solution idea and test basis for the optimal proportioning problem of limestone calcined clay composite cementitious material system.

Key words: composite cementitious material, calcined clay, limestone, ratio optimization, response surface, mechanical property

中图分类号:

TU502

翟宸, 张庆年, 黄剑锋, 邱树恒, 陈小鹏, 童张法. 基于响应面法的石灰石煅烧黏土复合胶凝材料体系优化设计和试验研究[J]. 硅酸盐通报, 2024, 43(10): 3677-3685.

ZHAI Chen, ZHANG Qingnian, HUANG Jianfeng, QIU Shuheng, CHEN Xiaopeng, TONG Zhangfa. Optimal Design and Experimental Study on Limestone Calcined Clay Composite Cementitious Material System Based on Response Surface Method[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(10): 3677-3685.

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