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首页> 外文期刊>Journal of materials in civil engineering >Flexural Strength and Thermal Conductivity of Fiber-Reinforced Calcium Silicate Boards Prepared from Fly Ash
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Flexural Strength and Thermal Conductivity of Fiber-Reinforced Calcium Silicate Boards Prepared from Fly Ash

机译：用粉煤灰制备的纤维增强硅酸钙板的抗弯强度和导热系数

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摘要

A novel fiber-reinforced calcium silicate board was prepared from fly ash. The effects of compression pressure, pulp fiber content, and cement content on the flexural strength and thermal conductivity of the fiber-reinforced calcium silicate boards were investigated. Under optimal conditions, the fiber-reinforced calcium silicate board had a high flexural strength of 10.55 MPa and low thermal conductivity of 0.2424 W/(m center dot K). The high flexural strength of the fiber-reinforced calcium silicate board was attributed to the good adhesion and penetration between fibers and the matrix, and the solidification of cement in calcium silicate board, enhancing the ability of the board to withstand the shear failure and bending force. The low thermal conductivity of the fiber-reinforced calcium silicate board was ascribed to the high porosity of the fiber-reinforced calcium silicate board and the low thermal conductivity of the porous tobermorite solid phase. This fiber-reinforced calcium silicate board has a potential application as a new building material.
机译：用粉煤灰制备了一种新型的纤维增强硅酸钙板。研究了压缩压力，纸浆纤维含量和水泥含量对纤维增强硅酸钙板抗弯强度和导热系数的影响。在最佳条件下，纤维增强硅酸钙板的弯曲强度为10.55 MPa，导热系数为0.2424 W /（m中心点K）。纤维增强的硅酸钙板的高弯曲强度归因于纤维与基体之间的良好粘合性和渗透性，以及水泥在硅酸钙板中的固化，从而增强了板承受剪切破坏和弯曲力的能力。 。纤维增强的硅酸钙板的低热导率归因于纤维增强的硅酸钙板的高孔隙率和多孔的蒙脱石固相的低热导率。这种纤维增强的硅酸钙板具有作为新型建筑材料的潜在应用。

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  • 来源
    《Journal of materials in civil engineering》 |2019年第8期|04019140.1-04019140.8|共8页
  • 作者

    Wang Zehua; Ma Shuhua; Zheng Shili; Ding Jian; Wang Xiaohui;

  • 作者单位

    Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China;

    Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    Fly ash; Tobermorite; Calcium silicate board; Fiber; Flexural strength; Thermal conductivity;

    机译：粉煤灰;硅铁矿;硅酸钙板;纤维;抗弯强度;导热系数;

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