Journal of Materials and Engineering Structures
Volume 3, Numéro 4, Pages 161-166
2016-12-30
Effect Of Lime Powder And Metakaolin On Fresh And Hardened Properties Of Self Compacting Concrete
Authors : Khan Rizwan A. . Sharma Atul .
Abstract
This study investigated the fresh and hardened properties of Self-Compacting Concrete (SCC) with different types and amounts of admixtures. Six mixes were prepared by replacing 30% of cement with different percentages of fly ash (FA), lime powder (LP) and metakaolin (MK). Water- Cement ratio was kept constant at 0.41 and superplasticizer dosage of 1% by weight of cement. The filling and passing ability were investigated through Slump Flow, J-Ring, V-funnel and L-box test before filling the moulds. The compressive strength of hardened SCC cubes was also measured after specified days of curing (7, 14, 28 & 60 days). The workability test results showed that as FA was replaced by increasing percentages of LP and MK, the mixes became dense and hence less workable. It was observed that the compressive strength showed an increase with increasing percentage replacement of FA with LP and MK. This increase was higher for mixes with MK than that of mixes with LP.
Keywords
SCC; SCMs; Lime powder; Fresh and Hardened properties
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