响应面法优化3D打印砂浆的性能
作者:
作者单位:

中建三局集团有限公司 中国建筑先进技术研究院,湖北 武汉 430070

作者简介:

王开强(1979—), 男, 甘肃兰州人, 中建三局集团有限公司正高级工程师, 博士. E-mail: 2224516921@qq.com

通讯作者:

零朝维(1993—), 男, 广西南宁人, 中建三局集团有限公司工程师, 硕士. E-mail: lveirs@qq.com

中图分类号:

TU528.01


Optimizing Properties of 3D Printing Mortar Using Response Surface Methodology
Author:
Affiliation:

China Construction Institute of Advanced Technology, China Construction Third Bureau Group Co., Ltd., Wuhan 430070, China

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    摘要:

    用响应面法分析了调凝组分与调黏组分对3D打印砂浆建造性和凝结时间的影响规律.结果表明:快硬硫铝酸盐水泥作为调凝组分能有效缩短砂浆的凝结时间;羟丙基甲基纤维素增稠剂与硅酸镁铝作为调黏组分可以提高砂浆的触变性,但会延缓砂浆的凝结;基于响应面法采用线性模型和二次模型拟合砂浆建造性、开放时间和凝结时间,模型具有显著性;经过响应面优化,可配制出凝结时间可调、建造性良好且开放时间合适的3D打印水泥基材料.

    Abstract:

    Response surface methodology(RSM) was used to analyze the influence of the setting regulating component and viscosity regulating components on the buildability and setting time of 3D printing cementitious materials. The results show that sulphoaluminate cement can effectively shorten the setting time of mortar as a setting regulating component. Hydroxy propy methyl cellulose thickener and magnesium aluminum silicate as viscosity regulating components can improve the thixotropy of mortar, but it will delay the setting of mortar. Using response surface analysis method, linear model and quadratic model can be used to fit the buildability, open time and setting time of mortar, respectively,and the model shows significant differences. After optimization through RSM, 3D printing cementitious materials with adjustable setting time, good buildability and appropriate open time can be prepared.

    表 7 砂浆开放时间及凝结时间二次模型方差分析结果Table 7 Analysis of variance results of the quadratic model for ROT and RST of martar
    表 5 响应面分析结果Table 5 Results of RSM
    表 2 硅灰的性能指标Table 2 Performance indicators of SF
    图1 SAC复合净浆凝结时间Fig.1 Setting time of SAC composite pastes
    图2 HPMC和MAS复合净浆凝结时间Fig.2 Setting time of HPMC and MAS composite pastes
    图3 砂浆湿胚强度增长率等值线图Fig.3 Contour map of RC of mortar
    图4 砂浆开放时间和凝结时间等值线图及3D响应曲面图Fig.4 Contour maps and 3D response surface maps of ROT and RST of mortar
    图5 砂浆建造性、开放时间以及凝结时间的多响应值叠加图Fig.5 Multiple response values overlay of buildability, open time and setting time
    图6 最优解决方案配合比打印验证Fig.6 Printing verification of optimal solution
    表 6 砂浆湿胚强度增长率线性模型方差分析结果Table 6 Analysis of variance results of linear model for RC of mortars
    表 4 响应面分析因素水平设计表Table 4 RSM factor level design table
    表 3 复合净浆的配合比Table 3 Mix proportions of composite pastes
    表 8 响应面优化后的最优解决方案Table 8 Optimal solution after response surface optimization
    表 1 水泥的性能指标Table 1 Performance indicators of cement
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引用本文

王开强,零朝维,李迪,池胜锋,胡春友.响应面法优化3D打印砂浆的性能[J].建筑材料学报,2024,27(6):543-550

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  • 收稿日期:2023-07-31
  • 最后修改日期:2023-11-13
  • 在线发布日期: 2024-07-11
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