Estimating the segregation of concrete based on mixture design and vibratory energy

Abstract Controlling the segregation of concrete during construction is important for assuring design strength and durability. This paper aims to model segregation by assessing how the stability of fresh concrete is affected by the maximum size and density of coarse aggregates (CA), mortar viscosity, maximum acceleration during vibration, and vibration time. The results show that CA properties have the greatest effect on the stability of concrete under vibration, followed by the mortar viscosity and the energy applied by unit mass of concrete. Therefore, the tendency of a concrete mixture to segregate or remain uniform is mostly controlled by the mixture design rather than by the vibration process.

[1]  Phillip Frank Gower Banfill,et al.  The rheology of fresh concrete , 1983 .

[2]  Michael F. Petrou,et al.  A unique experimental method for monitoring aggregate settlement in concrete , 2000 .

[3]  Navarrete Leschot,et al.  Stratified concrete : understanding its stratification process and modelling its structural behavior , 2015 .

[4]  Tayeb Bouziani,et al.  Correlation between v-funnel and mini-slump test results with viscosity , 2013 .

[5]  Douglas C. Montgomery,et al.  Applied Statistics and Probability for Engineers, Third edition , 1994 .

[6]  Peter Domone,et al.  Relationship Between the Rheology of Unvibrated Fresh Concrete and Its Flow Under Vibration in a Vertical Pipe Apparatus , 1999 .

[7]  Mohammed Sonebi,et al.  Influence of the Type of Coarse Lightweight Aggregate on Properties of Semilightweight Self-Consolidating Concrete , 2012 .

[8]  J. Szwabowski,et al.  Influence of superplasticizers on rheological behaviour of fresh cement mortars , 2004 .

[9]  David A Lange,et al.  Modeling Dynamic Segregation of Self-Consolidating Concrete , 2009 .

[10]  Ichiro Iwaki,et al.  A study on the applicability of vibration in fresh high fluidity concrete , 2005 .

[11]  Michael F. Petrou,et al.  Influence of Mortar Rheology on Aggregate Settlement , 2000 .

[12]  F De Larrard,et al.  A New Rheometer for Soft-to-Fluid Fresh Concrete , 1997 .

[13]  K. Khayat,et al.  Effects of mix design parameters and rheological properties on dynamic stability of self-consolidating concrete , 2014 .

[14]  G. H. Tattersall,et al.  The effect of vibration on the rheological properties of fresh concrete , 1988 .

[15]  Tien-Tung Ngo,et al.  Evaluation of rheological parameters of mortar containing various amounts of mineral addition with polycarboxylate superplasticizer , 2014 .

[16]  Peter James Christopher Grange.  Investigating the Commercial Viability of Stratified Concrete Panels , 2012 .

[17]  T. Kojima,et al.  Effect of Chemical Admixtures on the Rheology of Fresh Concrete During Vibration , 1989 .

[18]  Francine Berghan Finger,et al.  Control de la obra terminada: inspección final de calidad en un proyecto de interés social , 2015 .

[19]  Peter R. Mouton,et al.  Principles and Practices of Unbiased Stereology: An Introduction for Bioscientists , 2002 .

[20]  Kamal H. Khayat,et al.  New Test Method to Evaluate Dynamic Stability of Self-consolidating Concrete , 2014 .

[21]  John Tsamopoulos,et al.  Creeping motion of a sphere through a Bingham plastic , 1985, Journal of Fluid Mechanics.

[22]  Min-Hong Zhang,et al.  Stability of Fresh Lightweight Aggregate Concrete under Vibration , 2005 .

[23]  Ichiro Iwaki,et al.  The segregation tendency in the vibration of high fluidity concrete , 2004 .