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concrete structures

Lecture 3 Creep, Shrinkage & Concrete Testing Criteria

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Shrinkage & Creep Concrete Testing Criteria Shrinkage “Shrinkage is reduction in volume of concrete due to loss of water” Coefficient of shrinkage varies with time. Coefficient of shortening is:         • 0.00025 at 28 days 0.00035 at 3 months 0.0005 at 12 months Shrinkage =    Shrinkage coefficient x Length Excessive shrinkage can be […]

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Lecture 2 Design loads and load combination

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Design Principles of Concrete Structures Specification & Codes These are rules given by various organizations in order to guide the designers for safe and economical design of structures Various Codes of Practices are ACI 318-19 By American Concrete Institute. For general concrete constructions (buildings) AASHTO Specifications for Concrete Bridges. By American Association of State Highway

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