Experimental study on partial replacement of cement by metakaolin and GGBS. (2021)

• Record Type: Journal Article
• Authors: Elavarasan, S.; Priya, A.K.; Ajai, N.; Akash, S.; Annie, T.J.; Bhuvana, G.
• Is Part Of: Materials today. Volume 37(2021)Supplement Part 2
• Page Start: 3527
• Page End: 3530
• Publication Date: 2021
• Subjects: Metakaolin -- GGBS -- CO2 -- Cement -- Replacement; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.09.416
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The use of cement in construction industry increases the emission of CO2 is decreased by the use of additives in place of cement. Ground granulated blast furnace slag is obtained by quenching molten iron slag from a blast furnace in water is then dried and ground into a fine powder which is highly cementitious an high in CSH (calcium silicate hydrates) which increases strength and durability of concrete. Metakaolin is other supplementary cementitious material. It is not a by-product generated by industrial process. It is produced by heating Kaolin to 600–900 °C. The materials used in this study are ordinary Portland cement conforming to IS 8112-1989, fine and coarse aggregate conforming to IS 383 (2011), GGBS and metakoalin. The combination of the materials used are replacing cement content by 20, 30, 40, 50% of weight of cement by GGBS and metakaolin separately with water – cement ratio of 0.45 and M25 grade of concrete. The experiments made on hardened concrete are compressive test and Split tensile strength conforming to IS516 (1964) and flexural strength conforming to ASTM C78 at 7, 14 and 28 days intervals were conducted by casting 36 specimens.