Abstract
The aim of this study is to investigate the effect of pond water impurities on the strength of concrete and mortar with a view to determine the suitability of Urua Ekpa pond water for making concrete and mortar. Tap water was used to produce concrete and mortar with mix ratios same as that of the pond water specimens under investigation. The strength characteristics investigated included flexural and compressive strength of the mortar as well as the compressive and tensile strength of the concrete at the curing ages of 3, 7, 14, 21 and 28 days. The comparison of mean of the compressive strengths of concrete produced from pond and tap water gave a t-test probability value of 0.005 while a similar test with mortar from pond and tap water gave a probability value of 0.040. A comparison of flexural strength of mortar from pond and tap water gave a t-test probability value of 0.021. All the probability values were less than the alpha value of 0.05 and thus showed a significant difference in compressive and flexural strength of the samples under investigation. The tensile strength of concrete from pond water and that of tap water were compared and a probability value of 0.884 greater than the alpha value of 0.05 was obtained. The result of the study showed that impurities in pond water have no effect on tensile strength of concrete.
| Original language | English |
|---|---|
| Pages (from-to) | 65 - 71 |
| Number of pages | 7 |
| Journal | Journal of Environmental Design (JED) |
| Volume | 13 |
| Issue number | 2 |
| Publication status | Published - 31 Aug 2018 |
Keywords
- mechanical performance
- non-potable water
- cements mortar
- cement concrete