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http://dx.doi.org/10.12989/sem.2021.80.6.689

Compressive strength behaviour of low-strength hollow concrete block masonry prisms  

Syiemiong, Hopeful (Department of Civil Engineering, National Institute of Technology Meghalaya)
Marthong, Comingstarful (Department of Civil Engineering, National Institute of Technology Meghalaya)
Publication Information
Structural Engineering and Mechanics / v.80, no.6, 2021 , pp. 689-699 More about this Journal
Abstract
The present study aims to understand the behaviour of low-strength masonry prisms constructed with locally-produced 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.
Keywords
hollow concrete block; low-strength; masonry prisms; prism strength; stress-strain;
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