Experimental Assessment of Structure and Coarse Aggregate Size Effects on the Mechanical Properties of Concrete

Experimental Assessment of Structure and Coarse Aggregate Size Effects on the Mechanical Properties of Concrete | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 12 January 2025 V1 Latest version Share on Experimental Assessment of Structure and Coarse Aggregate Size Effects on the Mechanical Properties of Concrete Authors : Tchandikou Ouadja Fare 0009-0005-7707-1514 [email protected] , Mohammed Matallah , and Christopher Kanali Authors Info & Affiliations https://doi.org/10.22541/au.173666164.45511477/v1 745 views 233 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This study evaluated the effects of specimen and coarse aggregate sizes on the mechanical properties (compressive strength, modulus of elasticity, and Poisson’s ratio) of concrete. Cylindrical specimens of three concrete grades (C25, C45, C60) with two different coarse aggregate sizes (16 and 25 mm), and four specimen sizes (0.66 × 10 3 , 1.57 × 10 3 , 5.30 × 10 3 , and 12.56 × 10 3 cm 3 ) were tested under static loading. The results reveal that smaller specimens consistently exhibited higher compressive strength and modulus of elasticity, with compressive strength reductions ranging from 51.54% to 56.42% as specimen size increased. Lower-grade concrete (C25) was more sensitive to size effects, while higher-grade concrete (C60) exhibited improved resistance. The Modulus of elasticity decreased by up to 30.5%, with smaller coarse aggregates sizes. Concrete bulk density decreased with specimen size, reflecting increased material heterogeneity and void content in larger specimens. Larger aggregates (25 mm) generally resulted in higher densities due to efficient packing, except in C60, where better binder quality offset this effect. The Poisson’s ratio increased slightly with specimen size, ranging from 0.15 to 0.25, reflecting greater lateral strain in larger specimens. Smaller aggregates occasionally exhibited higher Poisson ratios, indicating improved ductility. Supplementary Material File (manuscript file_tchandikou.docx) Download 5.12 MB Information & Authors Information Version history V1 Version 1 12 January 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords coarse aggregate size concrete size effect elastic modulus poisson’s ratio Authors Affiliations Tchandikou Ouadja Fare 0009-0005-7707-1514 [email protected] Jomo Kenyatta University of Agriculture and Technology College of Agriculture & Natural Resources View all articles by this author Mohammed Matallah Universite Abou Bekr Belkaid Tlemcen Laboratoire de Productique de Tlemcen View all articles by this author Christopher Kanali Jomo Kenyatta University of Agriculture and Technology College of Agriculture & Natural Resources View all articles by this author Metrics & Citations Metrics Article Usage 745 views 233 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Tchandikou Ouadja Fare, Mohammed Matallah, Christopher Kanali. Experimental Assessment of Structure and Coarse Aggregate Size Effects on the Mechanical Properties of Concrete. Authorea . 12 January 2025. DOI: https://doi.org/10.22541/au.173666164.45511477/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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