Characteristic Evaluation of Blended Cement Concrete

Contact-9730906816 Abstract — This paper summarized the research work on evaluation of ternary blended cement containing Metakaolin &Fly ash.compaction factor test, slump cone test, flow table test was carried out on fresh concrete to check the workability while compressive strength, flexural strength, split tensile strength, impact strength was carried out on hardened concrete. A concrete mix of grade M40 was investigated by keeping water-binder ratio as 0.4. Initially workability and strength characteristics of binary blend was carried out by replacement intervals of 5%, 10%, 15%, 20%. Similarly workability and strength characteristics of Ternary bend was found out by replacement intervals of 5%, 10%, 15%, 20% [1]. Result states that by increasing percentage of fly ash, workability goes on increasing while by increasing percentage of metakaolin workability goes on decreasing [1]. It was observed that, percentage change in strength of concrete when fly ash is used is varying for various duration. But when Metakaolin was used, the percentage change in strength for various durations is almost constant [2]. Thus from above conclusions we get an idea about using both the materials i.e. fly ash and metakaolin, as a replacement in concrete together. It was evident from the tests of workability as well as on strength, that combination of 5 % FA and 20 % MK increase strength as well as makes the concrete more workable [3