A Study of Effect of Accelerators on Compressive and Flexural Strength of Concrete

Author(s):

Gaurav Awasthi , Shri Govindram Seksaria Institute of Technology and Science, Indore; Dr. U. B. Choubey, Shri Govindram Seksaria Institute of Technology and Science, Indore

Keywords:

Accelerator, Compressive Strength, Fast-track, Flexural Strength, OPC

Abstract:

This paper presents an experimental study conducted on 240 specimens, 120 cubes and 120 beams to see the effect of accelerators on compressive and flexural strength of concrete Ordinary Portland Cement (OPC) was used to produce concrete mixtures M20 and M30. Concrete mixtures were designed as per the new guidelines of IS 10262:2009. Three accelerators Potassium Carbonate, Sodium Thiosulfate and Triethanolamine were used. Both compressive strength and flexural strength of standard specimens with accelerators have been recorded at one, three, seven, fourteen and twenty-eight days of curing with water and compared with strengths of controlled specimens at their corresponding ages. The test results revealed that the maximum percentage gain was observed for Triethanolamine accelerator out of three accelerators at 1, 3, 7, 14 and 28 days compressive and flexural strength for both M20 and M30 grade of concrete. Also there is a very little change in 28 days compressive strength with all accelerators for both M20 and M30 grade of concrete.

Other Details:

Manuscript Id	:	IJSTEV2I5049
Published in	:	Volume : 2, Issue : 5
Publication Date	:	01/12/2015
Page(s)	:	78-81

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