A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of coarse‐aggregate shape on strength of hydraulic concrete
Shape is an important physical property of aggregates. However, the large amount of work required to measure with precision the size of coarse aggregate and the lack of relevant tests obscure how the shape of the coarse aggregate affects the strength of concrete. In this work, granite coarse aggregate was first divided into flaky stone and massive stone by manual screening. Next, the coarse aggregate was selected at random for size and volume measurements to obtain and analyze the aggregate shape parameters such as sphericity and flatness. Based on the selected aggregate, three aggregate combinations were designed according to the content of flaky stone. Finally, we measured the compressive strength and splitting tensile strength of hydraulic concrete (7, 28, and 60 days) with water‐binder ratios of 0.33, 0.41, and 0.5. The results show that the three aggregates clearly differ in shape, and the measured compressive strengths and splitting tensile strengths of the concrete with water‐binder ratios of 0.41 and 0.5 are similar. However, the compressive strength of the concrete with water‐binder ratio of 0.33 is significantly correlated with the three selected aggregate combinations.
Effect of coarse‐aggregate shape on strength of hydraulic concrete
Shape is an important physical property of aggregates. However, the large amount of work required to measure with precision the size of coarse aggregate and the lack of relevant tests obscure how the shape of the coarse aggregate affects the strength of concrete. In this work, granite coarse aggregate was first divided into flaky stone and massive stone by manual screening. Next, the coarse aggregate was selected at random for size and volume measurements to obtain and analyze the aggregate shape parameters such as sphericity and flatness. Based on the selected aggregate, three aggregate combinations were designed according to the content of flaky stone. Finally, we measured the compressive strength and splitting tensile strength of hydraulic concrete (7, 28, and 60 days) with water‐binder ratios of 0.33, 0.41, and 0.5. The results show that the three aggregates clearly differ in shape, and the measured compressive strengths and splitting tensile strengths of the concrete with water‐binder ratios of 0.41 and 0.5 are similar. However, the compressive strength of the concrete with water‐binder ratio of 0.33 is significantly correlated with the three selected aggregate combinations.
Effect of coarse‐aggregate shape on strength of hydraulic concrete
Huang, Yaoying (author) / Ding, Yu (author) / Xie, Tong (author) / Fei, Dawei (author)
Structural Concrete ; 22 ; E710-E719
2021-01-01
10 pages
Article (Journal)
Electronic Resource
English
Effect of shape and character of coarse aggregate on strength of concrete
| Engineering Index Backfile | 1928
Quantification of coarse aggregate shape in concrete
| Springer Verlag | 2014
Effect of Coarse Aggregate on Compressive Strength of High-Strength Concrete
| British Library Conference Proceedings | 1993
Estimation of Coarse Aggregate Strength in High-Strength Concrete
| Online Contents | 1996
Estimation of Coarse Aggregate Strength in High-Strength Concrete
| British Library Online Contents | 1996