Volume No. 5 Issue No.: 1 Page No.: 46-52 July-September 2010

 

STUDY ON FLYASH CONCRETE USING SEM ANALYSIS

 

B.Vidivelli* and M. Mageswari

Department of Structural Engineering, Annamalai University, Annamalai nagar, 600 002, Tamil Nadu, (INDIA).

 

Received on : October 21, 2009

 

ABSTRACT

 

Increasing the performance of concrete with the partial replacement of mineral admixture using flyash along with chemical admixtures eliminates these drawbacks besides enhancing durability characteristics. This paper reports the investigation carried out on concrete with partial replacement of cement by flyash. Concrete mixes, viz. conventional concrete mixes with varying percentages of flyash (10, 20, 30 and 40%) as cement replacement material were investigated. The compressive strength, tensile strength of cubes and cylinders and flexural strength test were carried out on 4 concrete mixes at the ages of 28,45,60,90 and 180 days. The effect of fllyash as cement replacement material on mechanical properties were analyzed and compared with conventional cement concrete. This paper briefly presents the compressive strength, tensile strength of cubes and cylinders and flexural strength of all the concrete mixes investigated at the age of 28,45,60,90 and 180 days. The SEM analysis of the flyash concrete is studied in detailed.

 

Keywords : Flyash, Compressive strength, Tensile strength, Flexural strength, Cement replacement material, SEM analysis.

 

 

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