A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Expansive (Self-Stressing) Cements: In Reinforced Concrete
This four part report describes the evaluation of a highly expansive cement for structural applications in which three dimensional restraint was developed by the use of reinforcing steel cages or steel pipe in a column application. The first part summarizes the evaluation of the expansive, Type M cement. Mechanical properties as well as structural behavior of a reinforced concrete beam were evaluated. Part II and III are detailed descriptions of the evaluation of columns with conventional tied or spiral reinforcement and with steel tubes filled with the concrete. Included is a study of the effects of air entrainment on expansion and of durability of such self stressed units in freezing and thawing. Poor durability was found in this exposure. A study of the time of set properties of the expansive cement concrete was also included. The concrete's time of set was extremely sensitive to temperature. Part IV is a critical evaluation of the investigation's results with recommendations for future utilization of highly expansive (self-stressing) cement concrete. The first requirement for future development should be an improvement in the compressive strength capability of expansive cement in order to obtain efficient utilization of the restraint steel.
Expansive (Self-Stressing) Cements: In Reinforced Concrete
This four part report describes the evaluation of a highly expansive cement for structural applications in which three dimensional restraint was developed by the use of reinforcing steel cages or steel pipe in a column application. The first part summarizes the evaluation of the expansive, Type M cement. Mechanical properties as well as structural behavior of a reinforced concrete beam were evaluated. Part II and III are detailed descriptions of the evaluation of columns with conventional tied or spiral reinforcement and with steel tubes filled with the concrete. Included is a study of the effects of air entrainment on expansion and of durability of such self stressed units in freezing and thawing. Poor durability was found in this exposure. A study of the time of set properties of the expansive cement concrete was also included. The concrete's time of set was extremely sensitive to temperature. Part IV is a critical evaluation of the investigation's results with recommendations for future utilization of highly expansive (self-stressing) cement concrete. The first requirement for future development should be an improvement in the compressive strength capability of expansive cement in order to obtain efficient utilization of the restraint steel.
Expansive (Self-Stressing) Cements: In Reinforced Concrete
C. F. Scholer (author) / E. C. Ting (author) / H. Gowda (author) / V. A. Harris (author) / D. H. Wagner (author)
1978
210 pages
Report
No indication
English
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