Mineral powder concrete : Effects of powder content on concrete properties

The effects of partial replacement of Portland cement with non-pozzolanic mineral powders on normal-strength concretes were studied. The observed concrete properties were workability, pumpability, compressive strength and microstructure. Superplasticisers were used in every test concrete. With the addition of mineral powders, the water requirement of the concrete mixes decreased and the compressive strength of the mineral powder concretes was kept at the same level as in a reference mix by using on average a 75 kg/m3 lower cement amount. Studies of the microstructure of the concretes were made using resin-impregnated and polished specimens that were prepared from three concretes, each containing a different mineral powder. In the environmental scanning electron microscopy study, the specimens showed densification of the interfacial transition zone when mineral powders were used. The effects of the mineral powders on the workability, water requirement and compressive strength values of the concretes were e...

[1]  Sanford E. Thompson,et al.  THE LAWS OF PROPORTIONING CONCRETE , 1907 .

[2]  O. Wallevik,et al.  Microstructure and microchemistry of the paste-aggregate interfacial transition zone of high-performance concrete , 1998 .

[3]  Dale P. Bentz,et al.  Computer modeling of the replacement of “coarse” cement particles by inert fillers in low w/c ratio concretes: Hydration and strength , 2001 .

[4]  K. Kawamura,et al.  Backscattered electron imaging: A new method for the study of cardiomyocyte architecture using scanning electron microscopy. , 2000, Cardiovascular pathology : the official journal of the Society for Cardiovascular Pathology.

[5]  François de Larrard,et al.  Ultrafine particles for the making of very high strength concretes , 1989 .

[6]  F. Larrard Concrete Mixture Proportioning: A Scientific Approach , 1999 .

[7]  H. Donza,et al.  High-Strength Concrete With Limestone Filler Cements , 1999, SP-186: High-Performance Concrete: Performance and Quality of Concrete Structures.

[8]  Thierry Sedran,et al.  Mixture-proportioning of high-performance concrete , 2002 .

[9]  Wenzhong Zhu,et al.  Use of different limestone and chalk powders in self-compacting concrete , 2005 .

[10]  Karen L. Scrivener,et al.  Backscattered electron imaging of cementitious microstructures: Understanding and quantification , 2004 .

[11]  Erick Ringot,et al.  Mineral admixtures in mortars Effect of inert materials on short-term hydration , 2003 .

[12]  W. A. Gutteridge,et al.  Filler cement: The effect of the secondary component on the hydration of Portland cement: Part I. A fine non-hydraulic filler , 1990 .

[13]  A. H. M. Andreasen Ueber die Beziehung zwischen Kornabstufung und Zwischenraum in Produkten aus losen Körnern (mit einigen Experimenten) , 1930 .

[14]  H. Donza,et al.  Limestone filler cement in low w/c concrete: A rational use of energy , 2003 .

[15]  I. Soroka,et al.  Calcareous fillers and the compressive strength of portland cement , 1976 .

[16]  Tony Binns 15 – Pumped concrete , 2003 .

[17]  Mohamed Heikal,et al.  Limestone-filled pozzolanic cement , 2000 .

[18]  Arne Johansson,et al.  Pumpbetong och betongpumpning , 1976 .

[19]  R. Detwiler,et al.  Chemical and Physical Effects of Silica Fume on the Mechanical Behavior of Concrete , 1989 .

[20]  M. Nehdi,et al.  Optimization of high strength limestone filler cement mortars , 1996 .

[21]  Arnon Bentur,et al.  The influence of microfillers on enhancement of concrete strength , 1993 .

[22]  Kamal H. Khayat,et al.  Optimizing Self-Consolidating Concrete with Limestone Filler by using Statistical Factorial Design Methods , 2002 .

[23]  Sidney Mindess,et al.  Rheology of high-performance concrete: Effect of ultrafine particles , 1998 .

[24]  M. Stroeven,et al.  Assessment of packing characteristics by computer simulation , 1999 .

[25]  Guangcheng Long,et al.  Very-high-performance concrete with ultrafine powders , 2002 .