Creep and shrinkage of high-strength self-compacting concrete: Experimental and analytical analysis

In the present paper, a numerical and experimental study about creep and shrinkage behavior of a high strength self-compacting concrete is performed. Two new creep and shrinkage prediction models based on the comprehensive analysis on the available models of both conventional concrete and self-compacting concrete are proposed for high strength self-compacting concrete structures. In order to evaluate the predictability of the proposed models, an experimental program was carried out. A concrete which develops 60 MPa within 24 h was used to obtain experimental results. Several specimens were loaded: (i) at different ages and (ii) with different stress-to-strength ratios. Deformation in non-loaded specimens was also measured to assess shrinkage. All specimens were kept under constant stress during at least 600 days in a climatic chamber with temperature and relative humidity of 20°C and 50%, respectively. Results showed that the new models were able to predict deformations with good accuracy, although provid...

[1]  Gilles Pijaudier-Cabot,et al.  Cracking tendency of self-compacting concrete subjected to restrained shrinkage : Experimental study and modeling , 2006 .

[2]  Kamal H. Khayat,et al.  Effect of mix design on restrained shrinkage of self-consolidating concrete , 2010 .

[3]  M. Pigeon,et al.  Tensile creep at early ages of ordinary, silica fume and fiber reinforced concretes , 1995 .

[4]  H. Reinhardt,et al.  Tensile Creep of High-Strength Concrete , 2006 .

[5]  Anton K. Schindler,et al.  Properties of Self-Consolidating Concrete for Prestressed Members , 2007 .

[6]  Shami Nejadi,et al.  Evaluation and Comparison of the Analytical Models to Predict Creep and Shrinkage Behavior of Self-Compacting Concrete , 2011 .

[7]  Mehmet Gesoğlu,et al.  Strength and drying shrinkage properties of self-compacting concretes incorporating multi-system blended mineral admixtures , 2010 .

[8]  B. Persson.  A comparison between mechanical properties of self-compacting concrete and the corresponding properties of normal concrete , 2001 .

[9]  Claudio Mazzotti,et al.  Creep and shrinkage of self compacting concrete: Experimental behavior and numerical model , 2008 .

[10]  A. Bhattacharya.  Effects of aggregate grading and admixtures/fillers on fresh and hardened properties of self-consolidating concrete , 2008 .

[11]  Alen Horta.  Evaluation of Self-Consolidating Concrete for Bridge Structure Applications , 2005 .

[12]  Kyle Hatch Larson.  Evaluating the Time Dependent Deformations and Bond Characteristics of a Self Consolidating Concrete Mix and the Implication for Pretensioned Bridge Applications , 2007 .

[13]  Clay Naito,et al.  Performance of Bulb-Tee Girders Made with Self-Consolidating Concrete , 2006 .

[14]  Benoit Cordoba.  Creep and shrinkage of self-consolidating concrete (SCC) , 2007 .

[15]  Z. Bažant,et al.  Comment on recent analysis of concrete creep linearity and applicability of principle of superposition , 1994 .

[16]  Hajime Okamura,et al.  Self-Compacting Concrete , 2000 .

[17]  Shami Nejadi,et al.  Comparison of creep prediction models for self-compacting and conventional concrete , 2011 .

[18]  A. Leemann,et al.  Shrinkage and restrained shrinkage cracking of self-compacting concrete compared to conventionally vibrated concrete , 2009 .

[19]  W. Dilger,et al.  Creep of plain and structural concrete , 1983 .

[20]  Husam Najm,et al.  Evaluation of Mechanical Properties for Self-Consolidating, Normal, and High-Performance Concrete , 2006 .

[21]  P. Lura,et al.  Shrinkage and creep of SCC – The influence of paste volume and binder composition , 2011 .

[22]  Shami Nejadi,et al.  Shrinkage behavior of self-compacting concrete , 2012 .

[23]  Galit Agranati Landsberger.  EVALUATION OF CREEP PREDICTION MODELS FOR SELF CONSOLIDATING CONCRETE , 2009 .

[24]  P. Z.,et al.  Creep and Shrinkage of Concrete , 1965, Nature.

[25]  Geert De Schutter,et al.  Creep and shrinkage of self-compacting concrete. , 2001 .

[26]  Kamal H. Khayat,et al.  Shrinkage of Precast, Prestressed Self-Consolidating Concrete , 2010 .

[27]  Myint M Lwin,et al.  APPLICATIONS OF SELF-COMPACTING CONCRETE IN JAPAN, EUROPE AND THE UNITED STATES , 2003 .

[28]  Shami Nejadi,et al.  Mechanical properties of conventional and self-compacting concrete: An analytical study , 2012 .

[29]  Young Hoon Kim,et al.  Characterization of Self-Consolidating Concrete for the Design of Precast, Pretensioned Bridge Superstructure Elements , 2008 .

[30]  D. Gemert,et al.  Time-dependent deformations of limestone powder type self-compacting concrete , 2008 .