Transcription of 207.2R-95 Effect of Restraint, Volume Change, and ...
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207.2R-95 Effect of Restraint, Volume Change, and ...
Report presents a discussion of the effects of heat generation and vol-ume change on the design and behavior of reinforced mass concrete ele-ments and structures. Particular emphasis is placed on the effects ofrestraint on cracking and the effects of controlled placing temperatures, concrete strength requirements, and type and fineness of cement on volumechange. Formulas are presented for determining the amounts of reinforcingsteel needed to control the size and spacing of cracks to specified limitsunder varying conditions of restraint and Volume : adiabatic conditions; age; cement types; concrete dams; con-crete slabs; cooling; cracking (fracturing); crack propagation; crack widthand spacing; creep properties; drying shrinkage; foundations; heat ofhydration; heat transfer; machine bases; mass concrete ; modulus of elas-ticity; moisture content; placing; portland cement physical properties; port-land cements; pozzolans; reinforced concrete ; reinforcing steels; restraints ; shrinkage; stresses; structural design; temperature; temperaturerise (in concrete ); tensile strength; thermal expansion; Volume change ;walls.
CRACKING OF MASSIVE CONCRETE 207.2R-3. The degree to which the designer will either reduce vol-ume changes or use reinforcement for control of cracks in a
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