hollow concrete block


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hollow masonry unit

hollow masonry units
A masonry unit whose net cross-sectional area in any plane parallel to the bearing surface is less than 75% of its gross cross-sectional area measured in the same plane.
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Labour-intensive processes to create maximum employment meant that all components for the 1,176 low-level buildings, prefabricated RC beams and 24 million hollow concrete blocks were handmade on site.
The material can replace up to 40 percent of the ordinary Portland cement in hollow concrete blocks without affecting quality.