文章基本信息

标题：Long-term Shrinkage Empirical Model of High Performance Concrete in Humid Tropical Weather
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作者：Chatarina Niken ; Elly Tjahjono ; Franciscus Supartono 等
期刊名称：Civil and Environmental Research
印刷版ISSN：2225-0514
电子版ISSN：2225-0514
出版年度：2013
卷号：3
期号：2
页码：35-46
语种：English
出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：This paper represents a long-term shrinkage empirical model of high performance concrete (HPC) with and without fly ash based on experimental research in which compressive strength was 60MPa. Specimens measuring 150x150x600 mm 3 were used. Observations were conducted over the two year periode using an embeded vibrating wire strain gauge. As a result, the empirical model was in agreement with experimental results. Addicionally comparisons were made with ACI 209R, AS 3600-2009 and Eurocode 2. The results showed that ACI 209R was about 60% and 75% of HPC with and without fly ash respectively. Eurocode 2 was underestimated for both HPC (58%) and HPC without fly ash (73%). AS 3600-2009 was 16% higher than HPC with fly ash but this condition is suspectable to change during longer observation periode because AS 3600-2900 has a lower slope than the empirical model, while HPC without fly ash was overestimated (93%). Model representation shows significant differences in form compared to ACI 209R; and AS 3600, and similarity in form compared to Eurocode 2.
关键词：Shrinkage; High performance concrete; Empirical model; Humid tropical weather