Development of Free Flow Concrete With Different Admixtures

Authors: Sandra Pavani

DOI: https://doi.org/10.17605/OSF.IO/MUCVH

Short DOI: https://doi.org/ggrs9c

Country: India

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Abstract: Free flow concrete is a concrete that can be compacted in to every corner of a formwork purely by means of own weight, without using any vibrators. Free flow concrete is a fluid mixture suitable for placing in structures with congested reinforcement without vibration. Normal concrete was designed by using IS method and free flow concrete was designed by a simple mix design proposed by Nan Su. FFC was developed in the year of 1988’s by Prof. Hagime Okamura in Japan. FFC was one of the special concrete in across the world. The construction and placing becomes faster and then easy, it eliminates need for vibration & to reducing the noise pollution
In this study the strength and flow of concrete when compared to normal concrete. The chemical admixtures used for FFC is Silica fume with 1, 2, &3%.
However, the durability of such FFC needs to be proved,
• Development of a suitable mix for FFC that would satisfy the requirements of the plastic state
• casting of concrete samples and testing them for compressive strength, shrinkage & water absorption. The local aggregates, cement, admixtures and additives produced by the local suppliers were used in this design. The test results for acceptance characteristics of free flow concrete such as Slump flow, J-ring, V-funnel & L-box are presented. for the compressive strength at the ages of 7, 14&28 days was also determined and results are included here. The significance of this work lies in its attempt to provide some performance data of FFC so as to draw attention to the possible use of FFC

Keywords: Free Flow Concrete, Aggregates, Cement, Mix Design, Compressive Strength, Silica Fume

Paper Id: 219

Published On: 2015-07-07

Published In: Volume 3, Issue 4, July-August 2015

Cite This: Development of Free Flow Concrete With Different Admixtures - Sandra Pavani - IJIRMPS Volume 3, Issue 4, July-August 2015. DOI 10.17605/OSF.IO/MUCVH

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