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Unformatted text preview: 6. What are isolation joint, construction joint & control (or contraction) joint? What is the main purpose of each joint and how is it constructed? Curing of Concrete 1. Why is it important that a concrete be properly cured? What is the basic principle to follow to ensure proper curing of concrete? 2. Describe the following curing methods: (A) Sprinkling (B) Wet covering (C) Ponding (D) Waterproof covers (E) steam curing Special Considerations in Concreting 6 1. What are the effects of using sea water as mixing water in concrete? 2. What are the effects of hot weather on concreting? What are the appropriate measures to be taken in hot weather concreting? Explain how each measure (or method) works. 3. What are the effects of cold weather on concrete and the appropriate measures to be taken? Explain how each measure works....
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- Fall '10
- job site, fresh concrete, hot weather concreting, concrete false set