Journal
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
Volume 34, Issue 2, Pages 353-360Publisher
WUHAN UNIV TECHNOLOGY
DOI: 10.1007/s11595-019-2059-1
Keywords
reactive powder concrete (RPC); pumice powder concrete (PPC); combined cure; compressive strength; flexural strength
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Funding
- Scientific Research Projects Department of Bitlis Eren University
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We examined the applicability of the pumice aggregate on the concrete formed by considering the reactive powder concrete mixture ratios, for the rigid superstructure concrete road pavement and building construction. The natural pumice aggregate in fibrous and non-fibrous concrete samples was used in the production of concrete by fracturing in 0.1-0.6 mm dimensions in rotor mill. The concreted formed in this way is named after the pumice powder concrete (PPC). The PPC samples produced were taken 7 days as 20 degrees C standard water cure, 28 days as 20 degrees C standard cure and 9 different types of combined cures. The combined cures were applied different temperatures in different durations. PPC samples were subjected to some pressure and flexural tests at the end of the standard water and combined cures. The highest compressive and flexural strengths of PPC samples were obtained after the combined cures: 3 days in 20 degrees C as standard water curing + 2 days in 180 degrees C in drying-oven. The highest compressive strength of PPC samples without any fiber was found to be 47.27 MPa, as for the highest flexural strength, it is found to be 5.23 MPa, in the end of the study. The highest compressive strength of fibrous PPC samples was 51.12 MPa, while flexural strength was 6.57 MPa.
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