Literature

Aitcin, P., "Demystifying Autogenous Shrinkage", Concrete International, 1999, pp. 54-56.

CEB-Bulletin 228, "High Performance Concrete: Recommended Extensions to Model Code 90", Report on the CEB-FIP Working Group on High Strength Concrete", July 1995.

ENV 197-1 Cement - composition, specifications and conformity criteria - Part 1 Common cements, 1992

fib, "Structural Concrete: Text Book on Behaviour, Design and Performance, Upgraded Knowledge of the CEB/FIP Model Code

Han, N., "Time dependant behaviour of high strength concrete", PhD thesis, Delft University of Technology, The Netherlands", 1996.

JCI Technical Committee Report on Autogenous Shrinkage Autogenous Shrinkage of Concrete: Proceedings of the International Workshop, ed. Tazawa, E&FN Spon, London, 1998, pp. 3-63.

Koenders, E., van Breugel, K.,"Second Stichtse Bridge - Concrete with high strength: experimental research into the creep and relaxation behaviour during the early stage of the hardening process", Report 25.5-96-2, Feb. 1996, TU Delft (in Dutch).

Müller, H.S., Küttner, C.H., "Creep of High Performance Concrete - Characterisation and Code Type Prediction Model", 4th International Symposium on Utilisation of Highstrength/ High Performance Concrete, Paris, 1996, pp. 377/386

Müller, H.S., Küttner, C.H., Kvitsel, V., "Creep and shrinkage models for normal and high performance concrete - a unified code type approach", Revue Francaise du Genie Civil (1999)

Neville, A.M., "Properties of concrete", Pitman Publishing Limited, London 1995,

In Table 3.4 the values for £c2u follow from Eq. (6-9)

The values for £02 and n are obtained by curve fitting to the relations shown in Fig. 3.7. An approximate expression for £02 is:

£c2 (%) = 2.0 + 0.085 (fck - 50)0,53 and for n: n = 2.0

for fck ^ 50 Mpa for fck > 50 Mpa for fck ^ 50 Mpa for fck > 50 MPa

The resulting design curves are shown in Fig. 3.10.

A second possibility is the use of a bilinear design stress-strain relation (Fig. 3.10).

The values £c3 and £c3u are obtained by curve fitting to the relations shown in Fig. 3.7, and are given in

Table 3.5.

Table 3.5. Parameters for the bilinear design stress-strain relation in compression
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