Investigation of brick alignment effect on compressive strength Online publication date: Tue, 13-Jul-2021
by Usman Akmal; Nauman Khurram; Muhammad Ammar; Zahid A. Siddiqi; Tauqir Ahmed
International Journal of Masonry Research and Innovation (IJMRI), Vol. 6, No. 3, 2021
Abstract: Bricks are widely used in construction due to its availability and abundance. As per prevailing standards, compressive strength of brick is determined by placing it in horizontal (bed-wise) orientation. Due to high end-platen effect, the brick strength is overestimated. In this case, peak load corresponding to first visible appearance of crack is considered as failure load. In order to overcome this, an extensive testing is carried out to explore the effect of brick alignment on its compressive strength. Further, a relationship is also proposed between the compressive strength of bricks tested in vertical direction and tested in horizontal direction. It is also proposed to test the brick in vertical direction for more realistic compressive strength value. Moreover, a correction factor of 1.3 is proposed to classify the bricks on the base of their strength obtained in vertical direction.
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