Comparison of standard concrete and eco-concrete in respect to technical, environmental and durability performance

Author(s): Joachim Juhart, Rok Bregar, Gheorge David, Markus Krüger
Paper category: Proceedings
Book title: SynerCrete’18: Interdisciplinary Approaches for Cement-based Materials and Structural Concrete: Synergizing Expertise and Bridging Scales of Space and Time Vol. 1 & 2
Editor(s): Miguel Azenha, Dirk Schlicke, Farid Benboudjema, Agnieszka Jędrzejewska
ISBN: 978-2-35158-202-2
e-ISBN: 978-2-35158-203-9
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 135-140
Total Pages: 6
Language : English

Abstract: In this study eco-concrete and in particular its paste is designed by a combined filler concept with the aim of optimizing its performance in respect to functionality, environmental impact and durability. Cement (PC) content is below the limits of traditional standards while w/c- ratio exceed such limits. The paste-mix development is based on a combination of particle packing optimization techniques, the reduction of water demand for certain flowability and designing an optimal mix of PC with properly selected, eco-friendly micro-fillers and “eco- fillers”. Subsequently the performance of the developed eco-concrete (ECO) in terms of workability, strength and durability indicators is evaluated versus a standard concrete (REF corresponding to normal concrete of RRT+ test of COST action 1404). While the functional performance of ECO in terms of workability (i.e. spread at flow-table) and strength is at least equivalent to REF, the eco-friendliness is substantially improved (global warming potential - 36% and embodied energy -19%). Durability indicators, such as open porosity, water penetration depth and air permeability, show nearly equivalent performance of ECO and REF.

Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00