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Structural Engineering and Mechanics Volume 80, Number 6, December25 2021 , pages 689-699 DOI: https://doi.org/10.12989/sem.2021.80.6.689 |
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Compressive strength behaviour of low-strength hollow concrete block masonry prisms |
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Hopeful Syiemiong and Comingstarful Marthong
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| Abstract | ||
| The present study aims to understand the behaviour of low-strength masonry prisms constructed with locallyproduced low-strength hollow concrete blocks. Compression tests were conducted on masonry prisms constructed with three different mortar grades of cement-sand ratios of 1:3, 1:4.5 and 1:6 representing strong, moderately strong and weak mortar. Stress-strain curves were generated from the test results for the masonry prisms. The hollow concrete masonry units employed in this study are some of the weakest as compared to other masonry units employed by other researchers. The compressive strengths for masonry prisms with mortar grades 1:3, 1:4.5 and 1:6 are 2.21 MPa, 2.19 MPa and 2.25 MPa respectively. The results indicate that the masonry compressive strength of such low-strength hollow concrete block masonry prisms is not influenced by the mortar strength. Simple relationships to estimate the modulus of elasticity and compressive strength of masonry prisms is also proposed. | ||
| Key Words | ||
| hollow concrete block; low-strength; masonry prisms; prism strength; stress-strain | ||
| Address | ||
| Hopeful Syiemiong and Comingstarful Marthong: Department of Civil Engineering, National Institute of Technology Meghalaya, Shillong 793003, India | ||