Abstract
Ettringite and thaumasite can be found among the deterioration products of cementitious materials exposed to sulfate and hydrochloric attack. The results of a test program to investigate the acid resistance of self-compacting concrete (SCC) and conventional concrete (CC), immersed up to 18 weeks at 20°C in sulfuric and hydrochloric acid solutions, are described. The SCC was prepared with
47% carboniferous limestone powder, as a replacement for cement, and an ordinary portland cement. The CC was prepared with portland
cement only. The water-binder ratios of the SCC and CC were 0.36 and 0.46, respectively. The parameter investigated was the time, in weeks, taken to cause 10% mass loss of fully immersed concrete specimens in a 1% solution of sulfuric acid and the same amount of loss in a 1% solution of hydrochloric acid. The investigation indicated that the SCC performed better than the CC in sulfuric solution but was slightly more vulnerable to hydrochloric acid attack compared to CC. The mode of attack between the two solutions was different.
Original language | English |
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Pages (from-to) | 354-357 |
Number of pages | 4 |
Journal | ASCE Materials Journal in Civil Engineering |
Volume | 15, No. 4 |
Issue number | 4 |
Publication status | Published - Aug 2003 |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- General Materials Science