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Kelly ball penetration and compaction factor

Kelly ball penetration and compaction factor

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Fig. 2 Slump and density of different concrete mixers
Fig. 3 a Kelly ball apparatus schematic, b Kelly ball test on DE with...
Fig. 4 Kelly ball penetration and compaction factor
Fig. 5 Relation between ball penetration and slump value
+4 Fig. 6 Compressive strength of different replacements
The Effect of Partial Replacement of Cement with Diatomaceous Earth (DE) and Polypropylene Fibers (PPF) on Fresh, Hardened, and Durability Properties of Concrete
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  • Apr 2024
This research aims to investigate the fresh and mechanical properties of concrete with diatomaceous earth (DE) and polypropylene fiber (PPF). The cement was partially replaced by DE in the concentration ranging from 5 to 20% by weight; whereas, PPF was incorporated in concrete mix as in range of 0.05–0.20% by cement weight. Totally, 25 different mi...
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... cm, leveled, with the Kelly ball positioned precisely at the center and 23 cm from each side. Measurements from three consecutive tests on the sample should be recorded, and their average value calculated. Fig. 3b shows the ball pentation test on concrete sample with PPF. The Kelly ball test result and compaction factor test results are shown in Fig. 4. The ball penetration depth was decreased upon increasing the amount of PPF, and the partial replacement of DE. The maximum penetration depth of 69 mm was measured in the control mix (D 0 -P 0 ), while the D 20 -P 100 mix exhibited the lowest penetration depth of 36 mm, which was around 47.82% lower than the control mix. The 15% DE ...