CONCRETop method: Optimization of concrete with various incorporation ratios of fly ash and recycled aggregates in terms of quality performance and life-cycle cost and environmental impacts

摘要: Abstract This study shows how to optimize traditional and non-traditional concrete mixes from various perspectives, specifically technical performance (e.g. mechanical durability characteristics), economic (cost) environmental global warming energy consumption) life cycle. Firstly, the weight be considered for each of these perspectives (dimensions) depends on application user's requirements. In this study, containing amounts recycled aggregates (RCA) and/or fly ash (FA) are optimized different applications in construction sector, namely high-rise building, sustainable residential housing, economical housing close or far sea. For that purpose, CONCRETop (a multi-criteria decision method optimization) methodology (developed by authors study) was applied considering requirement scenarios cost, strength, green, service business as usual) normally demanded users. is an example CONCRETop's also contributes its validation. The results show that, all users may demand, optimum terms characteristics, cost impact ones produced with both FA RCA incorporation, rather than their individual incorporation. straightforward application, i.e. it does not require excessive time resources, focused final output, where selection optimal can directly used user, avoiding therefore lengthy inventory analysis modifications.