AASHTO's Innovative Highway Technologies Site
America Concrete Insitute (ACI)
American Shotcrete Association
ConcreteThinker
Environmental Council of Concrete Organizations
Expanded Shale, Clay & Slate Institute
Federal Highway Adminstration's (FHwA) HPC Technology Delivery Team Site
International Parking Institute
National Concrete Bridge Council
Portland Cement Association (PCA)
Precast/Prestressed Concrete Insitute (PCI)
Transportation Research Board (TRB)
Hanley Wood
(Concrete Producer, Concrete Construction...)
Concrete Products
HIPERPAV
The Bridge Site
SC Solutions Bridge Engineering Site
BridgeWeb
BridgePros
Elkem Materials
Norchem Concrete Products
American Society for Testing and Materials (ASTM)
(to order a copy of the ASTM C1240-03a specification for silica fume)