We were engaged by Sinohydro-Gamuda-WCT joint venture (SGW) to provide expert consultancy on concrete technology for the New Doha International Airport, Qatar (NDIA). The new Doha international airport (NDIA) project was undertaken by Sinohydro-Gamuda-WCT joint venture (SGW) as part of the overall development of Doha into a future business and tourism hub. The project consisted of airport facilities and a proposed midfield access tunnel which is approximately 43m wide, a maximum of 9.36m in height and 1076m in length comprising:-
We provided support to optimize the concrete mix designs to control heat of hydration parameters which were likely to contribute to concrete cracking. This was considered by way of thermal modelling of the concrete mixes undertaken with computer simulation tools, incorporating assumed adiabatic temperature rise curves, thermal and strain properties of the concrete and boundary conditions. Based on the studies options to minimise cracking by way of construction sequencing and proper quality control procedures were implemented. General hot weather concrete controls were developed and the site team engaged accordingly.