Proposal of a Simplified Prediction Formula for Compressive Strength of Fly Ash Concrete
| Periodical | Advanced Materials Research (Volumes 287 - 290) |
|---|---|
| Main Theme | Applications of Engineering Materials |
| Edited by | Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li |
| Pages | 1201-1208 |
| DOI | 10.4028/www.scientific.net/AMR.287-290.1201 |
| Citation | Wen Bo Zhang et al., 2011, Advanced Materials Research, 287-290, 1201 |
| Online since | July, 2011 |
| Authors | Wen Bo Zhang, Isamu Yoshitake, Tadashi Saitoh |
| Keywords | Compressive Strength, Fly Ash (FA), Prediction Formula, Strength Ratio |
| Price | US$ 28,- |
To propose a prediction formula of compressive strength of concretes containing fly ash (FA concrete), over 1600 strength data are collected from previous studies and discussed in this study. In particular, the study focuses on developing strengths of FA concrete. The study deals with test data of concrete with wide range of FA replacement, namely 0-50% by mass of cement. Compressive strength at age of 7 days has strongly relation to the cement-water ratio, so the strength can be predicted by using only water and cement contents. In addition, early age strengths within 7 days can be estimated by using the Goral curve based on strength ratio. Strength after the age of 7 days can be predicted by using replacement ratio of fly ash because the strength ratios are proportional to the replacement ratio. Based on the findings, a simplified formula for predicting compressive strength at various ages is proposed in the paper.
