China: A team at Southeast University has developed an alternative concrete that contains 8% cement. It uses coral reef limestone fragments and biodebris with an upper particle size of 53mm as fine aggregate. The researchers concluded that the material proved suitable for use in precast concrete paving slab production.
Fletcher Building’s concrete division joins GCCA
New Zealand: The Global Cement and Concrete Association has welcomed Fletcher Building’s concrete division as its first member from Oceania. Scoop News has reported that the concrete’s division’s business spans the entire concrete value chain, including 26 limestone and aggregates quarries and 80 ready-mix concrete batching plants. Its cement subsidiary Golden Bay Cement operates the 0.9Mt/yr Portland cement plant in Whangārei, New Zealand.
Fletcher Building concrete division CEO Nick Traber said "Fletcher Building firmly believes we can play a significant part in a carbon zero and circular future. Our Golden Bay EcoSure cement is one of the lowest-carbon cements in the world already, with 13 - 22% less embodied carbon than imported products. We believe having access to the global research and knowledge from the GCCA will help us improve this further and continue to lead Australasia in best practice decarbonisation of the built environment."
Siam Cement Big Bloc Construction Technologies to build new concrete panel and block plant
India: Siam Cement Big Bloc Construction Technologies has bought 60,000m3 of land at Ramosadi in Gujarat's Kheda District. The concrete producer informed the BSE Exchange that it plans to build an autoclaved aerated concrete (AAC) panel and block plant at the site.
Holcim Costa Rica acquires Productos de Concreto's precast concrete unit
Costa Rica: Holcim Costa Rica has acquired the heavy precast unit of Productos de Concreto for US$3.35m. The La Nación newspaper has reported that the company also increased its stake in prefabricated construction company Tecnología de Construcción to 100% from 49%. The latter deal's value was US$774,000.
Holcim Costa Rica's corporate affairs manager José Alfredo Alpízar Guzmán said that these latest acquisitions complement the producer's existing abilities to supply its customers.