SUITABILITY OF WATER FOR CONCRETE MIXING OBJECTIVE To assess suitability of water for use in concrete mix. Equipment Measuring cylinder Cube moulds Trowel Tamping rod Vibrating table Testing machine Procedure Analyse water for its chemical compositions as per IS 3025-1964 and compare these with permissible limits given in IS: 456-2000. In case water does not … Read more
Quality Requirements of Drinking Water Parameter Requirements (Desirable Limits) Undesirable effect when outside permissible limit Permissible limit in the absence of alternate source ESSENTIAL CHARACTERISTIC pH 6.5 – 8.5 Beyond this range the water will affect the mucous membrane and/or water supply system No relaxation Colour (Hazen units), maximum 6.5 – 8.5 Above 5, consumer … Read more
A potable water is one that is safe to drink, pleasant to taste and usable for domestic purposes. Contaminated water is one that contains the bacteria which causes diseases. Polluted water is one that contains substances which are undesirable or unfit for drinking or domestic use. Drinking water must be free from: Disease producing organisms … Read more