Index of Aggregate Particle Shape and Texture of coarse aggregate as a parameter for concrete mix proportioning

Autor:	Sanjay S. Jamkar, C.B.K. Rao
Rok vydání:	2004
Předmět:	Quantitative measure Materials science Aggregate (composite) Properties of concrete Particle-size distribution General Materials Science Geotechnical engineering Building and Construction Surface finish Particle size Composite material Material properties Shape analysis (digital geometry)
Zdroj:	Cement and Concrete Research. 34:2021-2027
ISSN:	0008-8846
Popis:	Aggregates occupy bulk of the volume of concrete. Their size, grading, shape and surface texture have significant influence on the properties of concrete, both in fresh and hardened state. Specifications in various codes, on concrete mix proportioning, regarding size and grading of the aggregate are much clear than their counterparts regarding shape and surface texture, which is broadly classified into angular/crushed and rounded/uncrushed. The lack of quantitative definition of aggregate particle shape and surface texture often leads to inconsistent results, and requirement of number of trials for achieving desirable properties of concrete. Index of Aggregate Particle Shape and Texture (IAPST) as per ASTM D-3398-97, provides a quantitative measure of shape and surface texture of aggregate. The present investigation covers coarse aggregate with different IAPST. The data of 45 concrete mixes has been presented and the potential of IAPST of coarse aggregate as a parameter for concrete mix proportioning is discussed in the paper.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::726d93c2775db96f1a70108c6279baa0 https://doi.org/10.1016/j.cemconres.2004.03.010 Zobrazit plný text záznamu Full Text from ScienceDirect