As it is evident, concrete production industry, especially cement has put the environment in a crucial situation via greenhouse gas production, as well as natural resources (e.g., sand) consumption. what could be done in order to make a shotcrete mix design more sustainable in order to achieve a good properties (e.g., mechanical, workability, etc.) product with less environmental footprints?
Many thanks,
Hossein Pouresmaeil.
In the end of the following paper (unfortunately in French, but you can use an automatic translator), you can find some tracks for producing a greener cement without cooking:
https://actu.fr/pays-de-la-loire/bournezeau_85034/vendee-la-deuxieme-usine-pour-le-ciment-vert-de-hoffman-green-cement-technologies-sort-de-terre_38995921.html
This is one of the serious avenues we have identified in our work on the circular economy, which you can read here:
Article Development of a circular economy and evolution of working c...
Article The circular economy, an element of a policy of ecological r...
Preprint A circular economy in 2040. What impact on occupational safe...
Generally, a good way to reduce the carbon footprint of such industries is to establish industrial symbiosis which means using other industrial wastes as raw materials in their process. one way that researchers are pursuing to do that is to use plastics in electronic waste as Coarse-Aggregate in Concrete.
Chapter Persistent Toxic Substances Released from Uncontrolled E-was...
'To make a shotcrete mix more environmentally friendly, replace part of the Portland cement with supplementary cementitious materials, such as fly ash or slag cement. Using recycled aggregates and reducing the water-cement ratio can also help shotcrete have less negative impact on the environment. For example, the use of fly ash instead of half the cement can significantly reduce CO2 emissions. It is possible to further reduce the overall environmental impact of shotcrete by taking into account its life cycle, including the amount of maintenance required. The environmental impact of shotcrete can be reduced by curing it with wet burlap or burlap cloth, which requires less energy.'
- Badges
- Science topic