6. Water – Requirements and Impurities
Water is integral to construction, influencing hydration, workability, and curing of concrete. Not all water is suitable; impurities can adversely affect material quality, durability, and strength. The chapter addresses necessary water requirements for construction, effects of impurities, acceptable limits, testing methods, and sustainable practices.
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What we have learnt
- Water used in construction must be free of impurities to ensure quality and strength.
- Different types of water have varying suitability based on local sources and required tests.
- Sustainable practices include the use of recycled and harvested rainwater to reduce environmental impact.
Key Concepts
- -- Impurities in Water
- Substances such as salts, organic matter, and chemicals in water that can adversely affect concrete quality.
- -- Testing Methods
- Procedures to assess water quality, including pH testing, chemical analysis, and strength comparison tests.
- -- Recycled Water Use
- Utilization of treated greywater or wastewater in construction, complying with safety standards for non-structural applications.
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