Fresh, Durability and Mechanical Behavior of Self Consolidating Concrete Incorporating Fly Ash and Admixture Under Hot Weather

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dc.contributor.authorAlMartini, Samer
dc.contributor.authorSabouni, Reem
dc.contributor.authorEl-Sheikh, Abdel Rahman
dc.date.accessioned2024-07-08T08:40:58Z
dc.date.available2024-07-08T08:40:58Z
dc.date.issued2021
dc.descriptionSelf-Consolidating Concrete (SCC) is highly workable that can flow through densely reinforced structural elements and adequately fill in all voids without the need for vibration, or other mechanical consolidation. SCC can flow under its own weight [1]. Although SCC is high flowable, it should not experience segregation, excessive bleeding, excessive air migration during its transportation and placement. Thus, SCC must be viscous enough so that its mortar suspends adequately to can carry coarse aggregates, while maintaining a homogeneous, stable mixture resistant to segregation and bleeding. Simultaneously, it should be cohesive enough to fill empty spaces of almost any size and shape [2]. One of the most beneficial uses of SCC is the high speed of casting compared to the traditional concrete. SCC has also good mechanical properties and strength that made it suitable to be used for both in situ and precast concrete construction.
dc.description.abstractThe self-consolidating concrete (SCC) become the material of choice by concrete industry due to its superior properties. However, these properties need to be verified under hot weather conditions. The paper investigates the behavior of SCC under hot weather. Six SCC mixtures were prepared under high temperatures. The SCC mixtures incorporated polycarboxylate admixture at different dosages and prolonged mixed for up to 2 hours at 30 °C and 40 °C. The cement paste was replaced with 20% of fly ash (FA). The fresh properties were investigated using slump flow, T50, and VSI tests. The compressive strength was measured at 3, 7, and 28 days. The durability of SCC mixtures was evaluated by conducting rapid chloride penetration and water absorption tests. Keywords: Self Consolidating Concrete (SCC), high temperature, superplasticizer, fly ash.
dc.identifier.citationAl Martini, S., Sabouni, R., & El-Sheikh, A. R. M. (2021). Fresh, Durability and Mechanical Behavior of Self Consolidating Concrete Incorporating Fly Ash and Admixture under Hot Weather. In Key Engineering Materials (Vol. 904, pp. 453–457). Trans Tech Publications, Ltd.
dc.identifier.doihttps://doi.org/10.4028/www.scientific.net/KEM.904.453
dc.identifier.urihttps://dspace.adu.ac.ae/handle/1/5956
dc.language.isoen
dc.publisherScientific.net
dc.titleFresh, Durability and Mechanical Behavior of Self Consolidating Concrete Incorporating Fly Ash and Admixture Under Hot Weather
dc.typeConference Paper

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