文献类型：期刊文献

英文题名：COMPRESSIVE STRENGTHS OF CONCRETE CONTAINING RICE HUSK ASH WITHOUT PROCESSING

作者：He, Zhihai[1];Chang, Jingyu[1];Liu, Chuang[1];Du, Shigui[1];Huang, Man[1];Chen, Deng[2]

机构：[1]Shaoxing Univ, Coll Civil Engn, Shaoxing, Peoples R China;[2]Suzhou Univ Sci & Technol, Coll Civil Engn, Suzhou, Peoples R China

年份：2018

卷号：48

期号：4

起止页码：499

外文期刊名：REVISTA ROMANA DE MATERIALE-ROMANIAN JOURNAL OF MATERIALS

收录：SCI-EXPANDED(收录号：WOS:000456244700015)、、Scopus(收录号：2-s2.0-85060481433)、WOS

基金：The authors would like to acknowledge the National Natural Science Foundation of China (Grant No. 51602198, 41427802 and 41302257) for their financial support to the work present in this paper.

语种：英文

外文关键词：concrete; rice husk ash without processing; cubic compressive strength; size effect; brittleness

外文摘要：The effect of rice husk ash (RHA) without processing content on compressive strengths of concrete with afferent strength grades was studied experimentally at 28 days. The size effect of specimen on compressive strengths was also analyzed and discussed. The results indicate that RHA without processing reduces the cubic compressive strengths of concrete, the brittleness coefficient and the size effect of strengths. With the increase of RHA content, the reduction effect is more and more obvious. There exists a good linear relationship between the brittleness coefficient and the size effect of strengths of concrete. Based on the brittleness coefficients, the size effect law is proposed, which can well predict the size effect of cubic compressive strengths of concrete. RHA without processing increases the volume fractions of porosity and high-density calcium silicate hydrates, but reduces the volume fractions of calcium hydroxide.