High Strength Concrete with Variation of Additives
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The result of High strength concrete mechanical properties test showed that at the age of 56 days with the addition of 15% palm shells fly ash gave result of strength 780,92 kg/cm2, follow by coal fly ash (10%) with strength result 707,355 kg/cm2 and rice husk ash (5%) 650,767 kg/cm2. There is addition in concrete strength at 56 days compared to strength of 28 days. Strength - strains correlation showed the aggregate have high strength and lower strain compared to high concrete strength, mortar and cement paste. Observation SEM showed that concrete with addition of fly ash was compact and soli...
The result of High strength concrete mechanical properties test showed that at the age of 56 days with the addition of 15% palm shells fly ash gave result of strength 780,92 kg/cm2, follow by coal fly ash (10%) with strength result 707,355 kg/cm2 and rice husk ash (5%) 650,767 kg/cm2. There is addition in concrete strength at 56 days compared to strength of 28 days. Strength - strains correlation showed the aggregate have high strength and lower strain compared to high concrete strength, mortar and cement paste. Observation SEM showed that concrete with addition of fly ash was compact and solid more than without using fly ash. It also there was micro crack because of imposition.
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