One of mineral admixtures which could be used in eco-concrete is calcareous fly ash W (CFA-W).

Thus, composition concept of eco-SCC with low hydration heat was developed and presented in ( Gołaszewski & Cygan, 2017a) ( Gołaszewski & Cygan, 2017b). The problem is especially important in the case of SCC which is usually characterized by high cement content. They can cause cracking in the whole volume of concrete element lowering its durability and shortening its service life-time. Thermal effects associated with cement hydration are of particular importance for concrete durability ( Neville & Brooks, 2010). The eco-concrete is characterised by the optimization of use of materials and mix design, which especially includes: minimization of cement and clinker content through its substitution with mineral additives enhanced workabilityof fresh concrete, best by using self-compacting concrete (SCC), enhanced durability and service life, and last butnot least, acceptable cost, obtained by usage of commonly and locally available low cost materials and technologies. 67: Guidelines for green concrete structures, 2012). Keywords: calcareous fly ash self-compacting concrete 1 IntroductionĮco-concrete is defined as a concrete which uses waste materials as at least one of its components, its production process does not lead to environmental destruction, and it has high performance and life cycle sustainability ( Fib Bulletin No.

Mass effect 3 cem