Research Article
Investigation of the Effect of Larestan’s Pipeline Water on the Mechanical Properties of Concretes Containing Granite Aggregates
Table 3
Comparison of drinking water of Larestan and Tehran with the Iranian Water Standard. The unspecified parameters are shown by dashed cells [
35,
36].
| | Type | Content in Tehran water | Content in Larestan water | Max. acceptable limit | Status for Larestan water |
| | PH | 7.7 | 7.92 | 6.5–8.5 | Acceptable | | TDS | — | 670 | 1000 | Acceptable | | Chloride (Cl) | 142 | 208 | 250 | Acceptable | | Sodium (Na) | — | 132.1 | 200 | Acceptable | | Calcium (Cal) | 88 | 93.6 | 300 | Acceptable | | Free residual chlorine (g/L) | — | 1.5 | 0.5–1 | Unacceptable | | The degree of hardness (CaCO3) | 284 | 410.4 | 200 | Unacceptable | | EC | 423 | 1453 | 400 | Unacceptable | | SO4 | 70 | 264 | 250 | Unacceptable | | Mg | 20 | 43.74 | 30 | Unacceptable | | Turbidity (NTU) | — | 1.15 | Less than 1 | Unacceptable | | Temperature (C) | — | 26.1 | 10–20 | Unacceptable |
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