首页> 外文期刊>Construction and Building Materials >Experimental investigation on the influence of multiscale pores on the static and dynamic splitting tensile strength of cementitious materials based on the virtual pore method
【24h】

Experimental investigation on the influence of multiscale pores on the static and dynamic splitting tensile strength of cementitious materials based on the virtual pore method

机译:基于虚拟孔径法的胶凝材料静态和动态分裂拉伸强度对多尺度孔隙的实验研究

获取原文
获取原文并翻译 | 示例
           

摘要

Mechanical properties of cementitious materials are closely related to their pore structures. The present study aims to determine the effect of pore size on the static and dynamic tensile strength of cementitious materials. Based on the virtual pore method, mortar samples with different porosity and pore size distribution were prepared, and their strength was measured. A series of models were proposed, which quantified the effect of pore size on static and dynamic splitting tensile strength and dynamic increase factor (DIF). It was revealed that pores with radii larger than 100 nm have a significant impact on strength. Specifically, pores with radii larger than 100 mu m dominate the effect on static strength, while the pores with radii of 100 nm-100 mu m dominate the effect on dynamic strength. At the same porosity, materials with larger pores tend to have a more pronounced rate effect and a higher DIF. The findings of this paper can be used as a reference for the design of cementitious materials. (C) 2020 Elsevier Ltd. All rights reserved.
机译:水泥材料的机械性能与其孔结构密切相关。本研究旨在确定孔径对水泥材料静态和动态拉伸强度的影响。基于虚拟孔隙方法,制备具有不同孔隙率和孔径分布的砂浆样品,并测量它们的强度。提出了一系列模型,该模型量化了孔径对静态和动态分裂拉伸强度和动态增加因子(DIF)的影响。揭示了大于100nm的半径的孔对强度产生显着影响。具体而言,大于100μm的半径大于100μm的孔对静电强度的影响主导,而具有100nm-100μm的孔径为动态强度的影响。在相同的孔隙率下,具有较大孔的材料倾向于具有更明显的速率效应和更高的差异。本文的研究结果可用作胶凝材料设计的参考。 (c)2020 elestvier有限公司保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号