ICT paper- Chris Goodier- SHOULD DURABILITY BE A BARRIER.pdf (411.79 kB)
Should durability be a barrier to the use of crushed concrete aggregate in structural concrete?
conference contribution
posted on 2018-08-02, 10:36 authored by Chris GoodierChris Goodier, Wayne J. Dodds, Simon Austin, Christian Christodoulou, D. DunneApplications involving crushed concrete aggregate (CCA), or recycled concrete aggregate (RCA), are growing, as interest continues to increase in the sustainable sourcing of materials. For CCA to be fully used in structural concrete however, it’s influence on the mechanical and durability properties of the resultant concrete is required. The electrical resistivity and water absorption by capillary action of CEM I and CEM III/A concretes were hence investigated to determine the effects on concrete microstructure and water ingress. Findings show that incorporating coarse CCA has generally a detrimental effect on the microstructure and water ingress of structural concrete. However, this can be mostly overcome through the inclusion of GGBS, hence allowing higher proportions of coarse CCA to be incorporated. Limiting the GGBS and coarse CCA content to 50% and 60% respectively is advised, hence minimising the risk of any significant deterioration of mechanical and durability performance. Results suggest that CCA CEM III/A concrete coul
Funding
This work was funded by UK’s Engineering and Physical Sciences Research Council (EPSRC), Loughborough University’s Centre for Innovative and Collaborative Construction Engineering (CICE) and AECOM .
History
School
- Architecture, Building and Civil Engineering
Published in
Are concrete durability problems a thing of the past?Issue
22Pages
49 - 55Citation
GOODIER, C.I. ... et al., 2017. Should durability be a barrier to the use of crushed concrete aggregate in structural concrete? IN: Hewlett, P. ... et al. (eds.) Proceedings of the 45th Annual Convention Symposium of the Institute of Concrete Technology: Are concrete durability problems a thing of the past?, Leeds, 6 th April, pp. 49-55.Version
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2017-04-06Publication date
2017Notes
This is a conference paper.Publisher version
Language
- en