Open AccessAn investigative approach on the influence of mineral admixtures on internally cured concrete
Author(s) -
V Kastro Kiran,
J Sreehitha,
M Uma Sree,
P S Niveditha
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/982/1/012021
Subject(s) - silica fume , curing (chemistry) , materials science , fly ash , cement , polyethylene glycol , composite material , compressive strength , ultimate tensile strength , flexural strength , properties of concrete , polyethylene , chemistry , organic chemistry
Concrete curing is vital to get the anticipated properties of the concrete structure. Among all the different available curing methods, the internal curing of concrete is the most recent and is gaining prominence over a few years. This work is engrossed on developing the internal curing concrete of M40 grade employing Polyethylene glycol-400 as an internal curing supplement. The impact of mineral admixtures, on mechanical properties, like silica fume and fly ash were examined at varying dosages. Polyethylene glycol-400 was used as a replacement to cement at 2.5% by weight of cement. By maintaining the constant dosage of Polyethylene glycol-400, the silica fume was used as 5% and 10% replacement to cement and fly ash at 15% and 25% by weights of cement, and the mechanical properties were assessed in contrast to traditionally cured concrete. The peak compressive and split tensile strengths were obtained at 5% replacement of silica fume, and at 10% replacement, the maximum flexural strength was obtained. As the percentage increase of fly ash content beyond 15%, decreased the strength. Fly ash and silica fume showed a positive impact on the mechanical properties of internally cured concrete when compared with the concrete cured conventionally.