Merging Mechanical and Environmental Performance of Turkish Fly Ash Portland Cement Mortars

2014-10-22
Meeting the ever increasing concrete demand in a sustainable way is one of the critical challenges of cement and concrete industry. There are two major green concepts commonly implemented by the industry: (1) Building more efficient cement factories, or updating the existing ones, (2) providing concrete mixes with increased fractions of supplementary cementitious materials (SCMs). Updating a cement factory might be costly and time consuming. On the other hand, using SCMs provides an easy and sustainable solution yielding concretes with high workability, satisfactory ultimate strength, and improved long-term durability. Coal fly ash (FA) – the main by-product from the combustion of pulverized coal in thermal power plants - is one of the most popular SCMs due to its wide range availability and low cost. When used properly, the FA-PC binary systems result in satisfactory or superior engineering performance. As of today, the correlations on how green the FA-PC systems are to their engineering performance are limited. This work aims to bridge this gap for Turkish fly ashes. For this purpose, a database of compressive strength results of Turkish FA-PC mortars was prepared from available data on literature. As an environmental performance indicator the global warming potential (GWP) of the selected mixes was chosen. The GWPs of the mixes were calculated through life-cycle assessment (LCA)- a methodological framework that assesses the environmental impacts and resources (including raw materials, energy, etc.) used throughout a product’s life-cycle from raw material acquisition through production, use, maintenance, recycling, and ultimate disposal. For the GWP calculations, “GreenConcrete LCA” tool developed at UC Berkeley was used. As a final step, the compressive strength results were correlated to GWPs of the mortar mixes allowing the consumer to choose the most suitable and sustainable mix for a given task.
11th International Congress on Advances in Civil Engineering - ACE 2014

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Citation Formats
M. Tangüler Bayramtan and Ç. Akgül, “Merging Mechanical and Environmental Performance of Turkish Fly Ash Portland Cement Mortars,” presented at the 11th International Congress on Advances in Civil Engineering - ACE 2014, Turkey, İstanbul, 2014, Accessed: 00, 2021. [Online]. Available: https://www.researchgate.net/publication/267212910_Merging_Mechanical_and_Environmental_Performance_of_Turkish_Fly_Ash-Portland_Cement_Mortars.