Open AccessStudies on Mechanical properties of High Calcium Fly ash based sustainable Geopolymer concrete
Author(s) -
B. Vijaya Prasad,
N. Anand,
P. D. Arumairaj,
Munish Kumar,
T. Dhilip,
G. Srikanth
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2070/1/012184
Subject(s) - fly ash , compressive strength , materials science , curing (chemistry) , geopolymer , sodium silicate , cementitious , ultimate tensile strength , sodium hydroxide , flexural strength , geopolymer cement , precast concrete , cement , composite material , ground granulated blast furnace slag , young's modulus , chemical engineering , history , archaeology , engineering
Geopolymer concrete (GPC) is a Sustainable construction material, in which cement is completely replaced by Fly ash as binder. To control emission of CO 2 during the production of cement, it is advisable to use alternate sustainable Cementitious material. The development of GPC become a major interest to use for in-situ and precast applications. The present study aims to develop High calcium fly ash based GPC with aid of alkaline liquids such as sodium Hydroxide (NaOH) and Sodium silicate (Na 2 SiO 3 ). Different molarities i.e 4M, 6M, 8M and 10M are used to develop the GPC under ambient and oven curing process. In the present investigation the Fresh properties of GPC and Mechanical properties such as compressive strength, Tensile strength, Flexural strength and Elastic modulus of GPC are investigated. An increase of alkaline activator in in the mix decreased the workability of GPC. The developed GPC mix of 8M is found to be the optimum for gain in compressive strength. A polynomial relationship is obtained for the mechanical properties of GPC developed under ambient and oven curing. The development cost of GPC can be reduced up to 11.25 to 16.5% as compared with conventional concrete grade of M25.