Comparison Of Compressive Strength Of Medium Strength Self Compacted Concrete By Different Curing Techniques
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2013 by IJETT Journal|
|Year of Publication : 2013|
|Authors : Prof. Nanak J Pamnani , Dr. A.K. Verma , Dr. D.R. Bhatt|
Prof. Nanak J Pamnani , Dr. A.K. Verma , Dr. D.R. Bhatt. "Comparison Of Compressive Strength Of Medium Strength Self Compacted Concrete By Different Curing Techniques". International Journal of Engineering Trends and Technology (IJETT). V4(5):1451-1457 May 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group.
In this paper variation in compressive strength of medium strength, self - compacted concrete with 3 different curing techniques is discussed. Initially several trials were carried out for mix design of medium strength self - compacting concrete. Once the mix design was achieved, three batches of concrete cubes were cast as per ASTM standard. Water cement ratio and admixture dose were kept constant as required by selected Mix Design. Slump Test was carried out on each batch in order to ascertain concrete flow for self - compacting concrete. First batch was cured in a temperature controlled curing tank in the laboratory. The second batch was cured by the application of an external curing compound under prevailing site conditions. The 3rd batch was cured with internal curing agent. From each batch, 3 cubes were tested for compressive strength at 3 - days age, at 7 days age and 28 days age of concrete and average values were taken. Results were analyzed and graphs were dra wn. It was noted that 28 - days compressive strength of cubes cured by applying curing compound was 91 % of the compressive strength of cubes cured in water tank in the laboratory (i.e., 09 % less). Similarly compressive strength of cubes cured by Internal curing compound was 95 % of the compressive strength of cubes cured in the laboratory (i.e., 05% less). So it was concluded that in areas with shortage of water, curing compounds can be effectively used with improved strength and sustainability of self - com pacted concrete.
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