Aluminum producer Vedanta is offering fly ash and bauxite residue to Indian cement companies to promote low-carbon cement manufacturing. Vedanta recently attracted more than 100 cement industry leaders to a recent technical workshop to promote potential partnerships.
Adjaye Associates has designed a red concrete complex to house the Africa Institute in downtown Sharjah in the United Arab Emirates. Covered open-air walkways will connect the five buildings, which will be built using low-carbon concrete.
ACI offers ACI-published content in multi-user, multi-site formats. Through its network of distributors, ACI content can be accessed digitally and on-demand by multiple employees at the same time, at multiple locations worldwide, and bundled with content from other publishers.
India is turning to prefabricated technology for affordable housing projects through the Light House Projects initiative. For example, buildings in Chennai, India, are being built with precast concrete.
Contractors that need to place mass concrete in hot weather should prioritize nighttime placements and add ice, cooling water or liquid nitrogen to the concrete mix, write Sarah De Carufel and Keya Shirali from Giatec Scientific. They note that the maximum concrete temperature differential should not surpass 35 degrees Fahrenheit during curing.
India could combat the rising cost of sand by replacing up to 10% of the sand in concrete with recycled plastic, according to research by John Orr from Cambridge University. "From a cost perspective, using the plastic can be cheaper, broadly speaking, especially as sand goes up in price as it becomes more scarce," Orr says.
CDE hosted a virtual symposium on the market for silica sand, as well as recycled products, for the Middle East and Africa region. "Today's customers have high expectations of the technology, they want recycled products that are comparable to virgin materials and that expectation helps drive that technology forward," said Eunan Kelly from CDE.