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Advances in Concrete Construction
  Volume 3, Number 3, September 2015 , pages 223-236

Strength evaluation of concrete with fly ash and GGBFS as cement replacing materials
H.S.Chore and M.P. Joshi

    Concrete is the most widely used material of construction. Concrete gained the popularity as a construction material due to the easy availability of its component materials, the easy formability, strength and rigidity upon setting and curing.In construction industry, strength is a primary criterion in selecting a concrete for a particular application. Now a days, the substantial amount of waste materials,containing the properties of the Pozzolana, is being generated from the major industries; and disposal of such industrial wastes generated in abundance is also the serious problem from environmental and pollution point of view. On this backdrop, an efforts are made by the researchers for the exploring the possibility utilization of such waste materials in making the sustainable construction material. The present paper reports the experimental investigation to study the strength characterization of the concrete made from the pozzolanic waste materials. For this purpose, the pozzolanic materials such as fly ash and ground granulated blast furnace slag were used as a cement replacing materials in conjunction with ordinary Portland cement. The equal amounts of these materials were used in eight trial mixes with varying amount of cement. The waster cement ratio was also varied. The chemical admixture was also added to improve the workability of concrete. The compressive strengths for 7, 28, 40 and 90 days
Key Words
    concrete, strength, pozzolanic materials, fly ash, ground granulated blast furnace slag (GGBFS)
H.S.Chore and M.P. Joshi: Department of Civil Engineering, National Institute of Technology Calicut, Kerala, India

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