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INFLUENCE OF MIX PROPORTIONS ON PERVIOUS CONCRETE USED IN PAVEMENTS | ||
| Thi-Qar University Journal for Engineering Sciences | ||
| Article 1, Volume 6, Issue 1, 2015, Pages 34-49 | ||
| Authors | ||
| Ali Hussain Ali; Sarab Mohammed Esmaeel | ||
| Abstract | ||
| In this research, the effect of using different water-cement ratios (w/c = 0.33, 0.35, and 0.4), different aggregate sizes (MAS = 40, 20, 14, 10 and 5.0) mm., adding different ratios of sand (5, 10, and 20)%, as well as, compaction on the strength and permeability of pervious concrete were studied. Test results indicated that, the best w/c ratio was 0.33 for MAS = 40, 20 and 14 mm., while the best w/c ratios were 0.35 and 0.4 for MAS = 10 mm. and 5.0 mm. respectively. In this research we considered a control mix (C:A = 1:6, w/c = 0.35 and MAS = 10 mm permeability = 2 sec) as the optimum mix proportions which it was obtained by trial mixes. It was clear that the best sand ratio was (10%). Results also indicated that, when adding 0.5% super-plastizer of cement weight, increase compressive strength. Finally adding sand with super-plastizer increase compressive strength but reduce permeability. | ||
| Keywords | ||
| Pervious concrete; Curing and Compaction; Mix Proportions; Sand; Green Concrete | ||
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