Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Creep of Concrete Predicted from Elastic Modulus Tests
Longtime creep studies were performed on 12 sealed portland cement concrete mixes. Results indicated that sustained compressive modulus of elasticity and creep of concrete, after any particular period of constant load, can be predicted easily from the initial modulus value at load application and fixed R-line relationships. An R-line represents graphically the relationship between initial secant modulus and sustained secant modulus of loaded concrete. The effects of many variables on R-lines are reported and discussed. Some of these are: intensity and time of load; aggregate types, sizes, and amounts; cement types and amounts; pozzolans and admixtures; age of concrete; moisture conditions; removal of stress; uneven stress; and temperature. Moduli relations for some epoxy resin mortars and concretes and some rock materials under sustained compressive loads are discussed. (Author)
Creep of Concrete Predicted from Elastic Modulus Tests
Longtime creep studies were performed on 12 sealed portland cement concrete mixes. Results indicated that sustained compressive modulus of elasticity and creep of concrete, after any particular period of constant load, can be predicted easily from the initial modulus value at load application and fixed R-line relationships. An R-line represents graphically the relationship between initial secant modulus and sustained secant modulus of loaded concrete. The effects of many variables on R-lines are reported and discussed. Some of these are: intensity and time of load; aggregate types, sizes, and amounts; cement types and amounts; pozzolans and admixtures; age of concrete; moisture conditions; removal of stress; uneven stress; and temperature. Moduli relations for some epoxy resin mortars and concretes and some rock materials under sustained compressive loads are discussed. (Author)
Creep of Concrete Predicted from Elastic Modulus Tests
K. B. Hickey (Autor:in)
1968
36 pages
Report
Keine Angabe
Englisch
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