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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.13 [2006] >
IJEMS Vol.13(3) [June 2006] >
| Title: | Effects of expanded perlite aggregate and different curing conditions on the drying shrinkage of self-compacting concrete |
| Authors: | Türkmen, İbrahim
Kantarci, Abdulhamit |
| Issue Date: | Jun-2006 |
| Publisher: | CSIR |
| IPC Code: | E04G21/08 |
| Abstract: | Fresh
self-compacting concrete (SCC) flows into place and around obstructions under
its own weight to fill the formwork completely and self-compact, without any
segregation. The present study investigates drying shrinkage of SCC including
mixtures of expanded perlite (EPA) and natural aggregates (NA) at six different
curing conditions. The binder dosage is kept constant at 450 kg/m3
throughout the study. A superplasticizer is used as 2% (by weight) of Portland
cement (PC) to reduce water/cement+mineral (w/cm) ratios and self-compacting.
Specimens have been exposed to conditions of lime-saturated water (B1), dry in
air (B2), coated with paraffin (B3), three times wetted in a day (B4), under
wet-sack (B5) and 100% relative humidity (B6). It has been found that drying
shrinkage of concrete is reduced by using EPA. The drying shrinkage of EPA
concrete decreases with an increasing moisture content. It is also found that
concrete exhibits a lower drying shrinkage in all time periods under the B1
curing conditions. |
| Page(s): | 247-252 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.13(3) [June 2006]
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