This paper describes the successful recycling of as much as 20 wt% of the product of thermal transformation of cement asbestos for the formulation of concrete.
We will then reflect on potential challenges for translation of these frameworks into concrete policies and interventions that can explain the lack of progress in design and formulation of concrete, practical SDH based initiatives.
The paper presents the study methodology, the characterization of waste marble aggregates and various practical formulations of concrete.
The context of this study was to find an extrudable formulation of Ultra High Performance Concretes usable in an aggressive environment.
This study is part of a long research whose objective is to contribute to the valorization and the optimization of the formulations economically that are easy to implement and which enable to use the dredged materials in the formulation of ordinary concretes by partial substitution to cement (10, 20 and 30%) of dredged sediments, after calcination at 750 °C to make them active.
Moreover, this study creates the possibility for improving the design with a formulation of the concrete teaching activities that were appropriate for use in practice in a CHC.
For instance, dune sand, crushed quarry sand, and sea-dredged sediments were incorporated in the formulation of sand concrete (El Euch Khay et al. 2010a, b, 2011; Ben Othmen et al. 2013) and RAP material were tested for usage in the formulation of cement-treated aggregates (El Euch Ben Saïd et al. 2014) and PCC (object of this paper).
There is also a possibility that difference in perspectives between the different sectoral epistemic communities prevented the formulation of more concrete recommendations, but this would require additional investigation.
BA alone has rarely been studied as a raw material in the formulation of cement and concrete.
Using RAP in the formulation of portland cement concrete (PCC) is a technique that is part of a sustainable development approach since it reduces on the consumption of new aggregates and reuses a material that is considered as waste.
