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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.11 [2004] >
IJEMS Vol.11(3) [June 2004] >
| Title: | Durability of mineral admixtured lightweight aggregate concrete |
| Authors: | Demirboğa, Ramazan
Gül, Rüstem |
| Issue Date: | Jun-2004 |
| Publisher: | CSIR |
| IPC Code: | Int. Cl.7 C04B 14/00 |
| Abstract: | In this study, the
freeze-thaw resistance of concretes made up of different mixtures of expanded
perlite and pumice aggregates was determined. The effect of silica fume and fly
ash on the freeze-thaw resistance of lightweight concrete was carried out.
Silica fume and fly ash were added into the mixture in the replacement of
cement, separately, (10%, 20% and 30% respectively). It was observed that
increasing perlite ratio in the mixture increased the freeze-thaw resistance of
the lightweight aggregate concrete up to 130%. Silica fume and fly ash,
replacement of portland cement, also increased the freeze-thaw resistance of
the samples up to 83% and 18% respectively. However, with the increasing
expanded perlite aggregate for replacement of pumice aggregate in the mixture,
the effect of mineral admixtures decreased drastically and for some
replacements of silica fume and fly ash reductions occurred up to 23% and 27%
respectively. The expanded perlite aggregate, silica fume and fly ash can be
used in construction industry to improve freeze-thaw resistance; and therefore
to decrease environmental pollution caused by silica fume and fly ash. |
| Page(s): | 201-206 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.11(3) [June 2004]
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