Abstract
In this research, the assessment is reported that between the initial absorption and the compressive strength of concrete blocks (vibro-compacted); the correlations are compared with a standard, which presents, after 28 days of manufacturing, a resistance to the compression of 96.08 kg/cm2 and an initial absorption coefficient of 21.4 g/(cm2 × min0.5), which was compared with three different mixtures of fly ash and an additive: The first was added with 10% of fly ash less 5% cement which presents a compressive strength of 83.32 kg/cm2 and an initial absorption coefficient of 19.72 g/(cm2 × min0.5), the second the additive was added which present, a compressive strength of 81.63 kg/cm2 and an initial absorption coefficient of 19.42 g/(cm2 × min0.5), and the last sample was added 10% of fly ash plus the additive which present a compressive strength of 97.51 kg/cm2 and an initial absorption coefficient of 7.51 g/(cm2 × min0.5). The resistance values in all cases are acceptable for the ONNCCE regulations; however, only the sample with the addition of fly ash plus the additive considerably decreases the initial absorption coefficient. The ONNCCE regulations were followed when performing the physical examinations. Scanning electron microscopy, X-ray diffraction, and a laser particle analyzer were used to characterize the fly ash.
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Ortíz, H.G., Tapia, J.C.J., Pérez, M.R., Labra, M.P., Rojo, E.M. (2024). Correlation of the Initial Absorption Coefficient and the Compression Resistance of Concrete Blocks (Vibro-Compacted), with the Addition of Fly Ash and an Additive. In: TMS 2024 153rd Annual Meeting & Exhibition Supplemental Proceedings. TMS 2024. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50349-8_164
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