All across the world concrete is an important building material however its impact on the environment has always been a cause of concern as highlighted by reputable bodies like The Royal Society of Chemistry. The process of cement production, integral to concrete, reportedly contributes up to 8% of the world's greenhouse gas emissions. Hence from time to time scientists have attempted to engineer a more sustainable variant of cement to mitigate the negative impacts.
Recently researchers at the University of Manchester in England have proposed a solution which holds promise. They have suggested adding a material called graphene to the mixture, to strengthen the concrete by 30%, and also reducing the amount of cement needed. This advancement not only fortifies the material but also streamlines production, and leads to cost savings for end-users.
Graphene, characterized as a "2D material," comprises a single layer of carbon atoms with exceptional properties. When integrated into concrete, it fosters superior bonding at a microscopic scale, resulting in enhanced durability and corrosion resistance. Moreover, the simplicity of its application allows for seamless integration into existing concrete formulations, without necessitating additional equipment or training.
Dr. Craig Dawson, the application manager at the Graphene Engineering Innovation Centre, has pointed out that the graphene-based additive mixture smoothly integrates into the existing batching plant processes without needing any alterations to production or the construction crew's workflow.
Graphene-modified concrete represents just one facet of the growing sphere of "green concrete." Then there are alternative approaches which include infusing carbon dioxide, repurposing coffee grounds, utilizing byproducts from sugar refining, or exploring substitutes like Ferrock.
As the innovation pertaining to the quest for eco-friendly construction materials continues, graphene is poised to play a pivotal role in ushering in a greener era for the construction industry.