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Shrinkage and Creep in Prestressed Concrete

P. H. Petersen / D. Watstein

The loss of prestress resulting from creep and shrinkage in concrete was investigated for concrete specimens made with Type I portland cement and with Type III portland cement. Forty-nine sets of specimens were fabricated and tested; each set consisted of a prestressed specimen and an otherwise identical companion specimen without reinforcement. The length changes with time were observed at intervals up to an age of 500 days. These observations were made for concretes subjected to different levels of prestress, and for concretes prestressed at different ages. Length changes in nonreinforced companion specimens were also obtained. Thus this study is concerned with elastic deformation occurring at time of stress transfer, shrinkage or swelling, and creep. (Author)

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Shrinkage and Creep in Prestressed Concrete

P. H. Petersen / D. Watstein

The loss of prestress resulting from creep and shrinkage in concrete was investigated for concrete specimens made with Type I portland cement and with Type III portland cement. Forty-nine sets of specimens were fabricated and tested; each set consisted of a prestressed specimen and an otherwise identical companion specimen without reinforcement. The length changes with time were observed at intervals up to an age of 500 days. These observations were made for concretes subjected to different levels of prestress, and for concretes prestressed at different ages. Length changes in nonreinforced companion specimens were also obtained. Thus this study is concerned with elastic deformation occurring at time of stress transfer, shrinkage or swelling, and creep. (Author)

Shrinkage and Creep in Prestressed Concrete

P. H. Petersen / D. Watstein

The loss of prestress resulting from creep and shrinkage in concrete was investigated for concrete specimens made with Type I portland cement and with Type III portland cement. Forty-nine sets of specimens were fabricated and tested; each set consisted of a prestressed specimen and an otherwise identical companion specimen without reinforcement. The length changes with time were observed at intervals up to an age of 500 days. These observations were made for concretes subjected to different levels of prestress, and for concretes prestressed at different ages. Length changes in nonreinforced companion specimens were also obtained. Thus this study is concerned with elastic deformation occurring at time of stress transfer, shrinkage or swelling, and creep. (Author)

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Title:

Shrinkage and Creep in Prestressed Concrete

Contributors:

P. H. Petersen (author) / D. Watstein (author)

Publication date:

1968

Size:

19 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Ceramics, Refractories, & Glass , Civil Engineering , Composite Materials , Beams(Structural) , Reinforced concrete , Structural properties , Creep strength , Strain(Mechanics) , Shrinkage , Cements , Steel , Composite materials , Test methods , Aging(Materials) , Prestressed concrete

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