Strength of the brick masonry
Concrete blocks
The structural integrity of brick masonry relies fundamentally on the quality of bricks themselves. The strength of a brick depends on the soil used for making bricks, the method, the process and the burning of the bricks. Since soil composition varies by region, brick strength naturally differs across geographic areas.
Factors affecting masonry strength
The permissible compressive stress of brick masonry depends on several elements:
Types of bricks (1st, 2nd, 3rd class).
Strength of bricks.
Size and shape of construction.
Mixing of mortar.
Uniformity of bricks.
Workmanship.
Method used for laying bricks.
Quality assurance checklists
To enhance brick masonry strength, builders should implement these inspection measures:
Visual assessment: Bricks must be well-burnt with uniform shape, size and colour.
Sound test: Striking two bricks together should produce a metallic sound.
Drop test: Quality bricks should withstand being dropped from one metre without breaking.
Water absorption: Premium bricks should absorb no more than 20% of their weight when submerged for 24 hours.
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