Long-term performance of concrete using additives Online publication date: Thu, 23-Jan-2020
by Kiran Devi; Babita Saini; Paratibha Aggarwal
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 15, No. 1, 2020
Abstract: The increase in global warming due to emission of greenhouse gases especially during the production of cement has become threat to the environment. The development of sustainable and economical materials has become need of the present scenario. Also, direct disposal of waste from stone industries is becoming serious issue to ecosystem and need its safe disposal. Accelerators are being used to accelerate stiffening and early age strength development of mortar/concrete. In this study, Kota stone powder (KSP) as partial substitution to cement and admixtures, i.e., calcium nitrate, triethanolamine as additives were used individually and in combination to examine their influence on strength, durability and micro-structural properties at later age. The aim of study was to check the viability of these materials in concrete under different environmental conditions; and to make sustainable concrete by reducing cement and cost. Admixtures and stone powder individually improved the properties; while, their mixture diminished concrete properties.
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