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Index of Aggregate Particle Shape and Texture of coarse aggregate as a parameter for concrete mix proportioning
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.
Index of Aggregate Particle Shape and Texture of coarse aggregate as a parameter for concrete mix proportioning
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.
Index of Aggregate Particle Shape and Texture of coarse aggregate as a parameter for concrete mix proportioning
Jamkar, S.S. (author) / Rao, C.B.K. (author)
Cement and Concrete Research ; 34 ; 2021-2027
2004
7 Seiten, 22 Quellen
Article (Journal)
English
| British Library Online Contents | 2004
Proportioning concrete aggregate
| Engineering Index Backfile | 1914
Separated sizes of coarse aggregate in proportioning of concrete
| Engineering Index Backfile | 1931
Separated sizes of coarse aggregate in proportioning of concrete
| Engineering Index Backfile | 1931