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Tensile basic creep of early-age concrete under constant load

Ostergaard, L. / Lange, D.A. / Altoubat, S.A. / Stang, H.

Viscoelastic behavior of early-age normal and high-strength concrete has been investigated. The study shows that concrete exhibits high tensile creep strain if loaded at an age less than or equal to 1 day. The investigations furthermore show that the creep strain is not proportional to the stress level in the specimen when loading occurs at 1 day. Creep experiments were also carried out on concretes with different w/c ratios and some qualitative comments are made. Finally, an approach for mathematical modeling of early-age creep for normal concrete was explored.

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Tensile basic creep of early-age concrete under constant load

Ostergaard, L. / Lange, D.A. / Altoubat, S.A. / Stang, H.

Viscoelastic behavior of early-age normal and high-strength concrete has been investigated. The study shows that concrete exhibits high tensile creep strain if loaded at an age less than or equal to 1 day. The investigations furthermore show that the creep strain is not proportional to the stress level in the specimen when loading occurs at 1 day. Creep experiments were also carried out on concretes with different w/c ratios and some qualitative comments are made. Finally, an approach for mathematical modeling of early-age creep for normal concrete was explored.

Tensile basic creep of early-age concrete under constant load

Ostergaard, L. / Lange, D.A. / Altoubat, S.A. / Stang, H.

Viscoelastic behavior of early-age normal and high-strength concrete has been investigated. The study shows that concrete exhibits high tensile creep strain if loaded at an age less than or equal to 1 day. The investigations furthermore show that the creep strain is not proportional to the stress level in the specimen when loading occurs at 1 day. Creep experiments were also carried out on concretes with different w/c ratios and some qualitative comments are made. Finally, an approach for mathematical modeling of early-age creep for normal concrete was explored.

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Title:

Tensile basic creep of early-age concrete under constant load

Contributors:

Ostergaard, L. (author) / Lange, D.A. (author) / Altoubat, S.A. (author) / Stang, H. (author)

Published in:

Cement and Concrete Research ; 31 ; 1895-1899

Publication date:

2001

Size:

5 Seiten, 14 Quellen

ISSN:

DOI:

https://doi.org/10.1016/S0008-8846(01)00691-3

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Kriechen (Werkstoff) , Last (mechanisch) , Zugspannung , Viskoelastizität , Altern (Werkstoff) , Zugeigenschaft , mathematisches Modell , Zugkriechen , Hochleistungsbeton

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