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Table 3 Results of water absorption test

From: Improved fired clay brick compressive strength by recycling wastes of blacksmiths’ workshops

Iron filings Dry bricks weight Weight after 1 h Weight after 24 h The water absorption percentage
% by weight Gram Gram Gram
0% 42 46 47 11.9%
1% 44 48 49 11.4%
2% 45 48.5 49.5 10.0%
3% 47 50.5 51.5 9.6%
4% 48 52 52.5 9.4%
  Limits of ECP 204 (Average of five bricks) up to 16%