Comparative Study of M20 and M25 grades of Concrete by ACI, DOE and BIS Methods of Mix Design Using Crushed Aggregate
Journal Title: International Journal of Scientific Research and Management - Year 2017, Vol 5, Issue 7
Abstract
The basis of this paper is to analyse c omparative study of different testing methods of concrete mix design of M20 and M25 grades. Different structures are being considered for testing the parameters relating to designed testing methods. Design mix is process of amalgamating different compositi on of material so as to adhere the final composed material with required compressive strength, practicability, and resilience. The appropriate mixture of cement, sand aggregate and water are fabricated to achieve desired design mix. The test methods are in ternationally adopted accordingly the countries requirement and their acceptability of designing their structures. The specimens tested was compressive test - cube test, flexural test - beam test and split tensile test - cylinder test . The design method consid ered for testing was BIS method, DOE method & ACI method for defining the structure design for concrete. The study shows designs of concrete derived from DOE testing method are more superior to other two methods which were used for designing of concrete. T his analysis is witnessed for overall strength and behaviour of testing specimens which were used for testing, and this is relevant to both g rade which was considered i.e. M20 and M25. The mean strength analysis for ACI method in case of M25 was failed to attain the desired result which was marked for design parameter, thus failed test for M25 relating to mean strength in case of ACI. The specimens i.e. cubes, bea ms, and cylinder was moulded for both grades M20 and M25 accordingly there strength parameters. The curing was taken up at 7 day and 28 day process follow - up which is standard norm for all methods. The comprehensive analysis of both curing periods were listed out and thus comparison of strengths for all moulds were evaluated for better insight into the strength relation with curing period. It’s is approximately similar for all methods thus showing curing period is independent of test method used. The DOE method showed best results amo ng the listed methods taken up for study and DOE has competitive ad vantage in strength and its performanc
Authors and Affiliations
Ravinder Singh
Keywords
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