Effect of rice husk ash on high-Temperature mechanical properties and microstructure of concrete

被引：19
作者：
Wang W.-H. [1 ,2 ]
Meng Y.-F. [1 ,2 ]
Wang D.-Z. [1 ]
机构：
[1] School of Civil Engineering and Hydraulic Engineering, Ningxia University, Yinchuan Ningxia
[2] Yinchuan Energy Institute, Yinchuan, Ningxia
来源：
Meng, Y.-F. (2979526409@qq.com) | 2017年 / Croatian Society of Chemical Engineers卷 / 66期
关键词：
Compressive strength; Concrete; High temperature; Rice husk ash;
D O I：
10.15255/KUI.2016.054
中图分类号：
学科分类号：
摘要：
Effects of rice husk ash (RHA) on the strength and temperature resistance of concrete were investigated. Different amounts of cement in concrete were replaced by RHA and fly ash (FA), used as mineral admixtures, under the condition of a constant binder content. The compressive strength and temperature resistance were tested at different temperatures. The results show that mixing concrete with the appropriate amounts of RHA can improve its compressive strength. At 800°C, the strength is 50 % greater than that of normal concrete (NC). Thus, RHA can improve the strength and temperature resistance of concrete.
引用
收藏
页码：157 / 164
页数：7
相关论文
共 15 条
  • [1] Wang H., Chen W.T., Chen C.L., Silica fume on the strength of high strength concrete test study of the influence of con-crete, Concrete, 7, pp. 74-76, (2011)
  • [2] Han B., Liu Y.X., Rice husk ash preparation and microstruc-Ture properties, Sichuan Build. Mater, 6, pp. 1-2, (2010)
  • [3] Yu Q.J., Zhao S.Y., Feng Q.G., High activity of rice husk ash preparation and its effect on the performance of cement, J. Wuhan Univ. Technol, 25, pp. 15-18, (2003)
  • [4] Li J.Q., Xu H.S., Xie H.B., Li G.Z., Study on the microstruc-Ture of silica fume modified cement/lime mortar, Bulletin Chinese Ceramic Soc., 25, pp. 66-70, (2006)
  • [5] Le H.T., Ludwig M.H., Effect of rice husk ash and other min-eral admixtures on properties of self-compacting high per-formance concrete, Mater. Design, 89, pp. 156-166, (2016)
  • [6] Hwang C.L., Tuan B.L.A., Chen C.-T., Effect of rice husk ash on the strength and durability characteristics of concrete, Constr. Building Mater, 25, pp. 3768-3772, (2011)
  • [7] Chatveera B., Lertwattanaruk P., Durability of conventional concretes containing black rice husk ash, J. Environ. Man-Age., 92, pp. 59-66, (2011)
  • [8] Chopra D., Siddique R., Kunal, Strength, permeability and microstructure of self-compacting concrete containing rice husk ash, Biosys. Eng, 130, pp. 72-80, (2015)
  • [9] Feng Q.G., Yang Y., Tong Z.F., Yamamichi S., Freezing and thawing resistance of concrete incorporating highly active rice husk ash, J. Chinese Ceram. Soc, 36, pp. 136-139, (2008)
  • [10] Wang S.D., Scrivener K.L., Hydration products of alkali ac-Tivated slag cement, Cement Concrete Res, 25, pp. 561-571, (1995)
12