Restraint assembly for bridge roadway expansion joints

Retrofit dowel for maintaining concrete structures in alignment

Rig mat system using panels of composite material

Rigid runways made of postensed celled concrete for airports...

Road base matrix

Road bed construction

Road gully or inspection cover assembly

Road inspection manhole

Road joint element

Road manhole

Road mat

Road mats

Road mats

Road network device with articulated cover

Road reinforcement sheet, structure of asphalt reinforced...

Road repair material comprising cement and a resin

Road surface comprising individual interconnected elements

Road surface sound reduction system

Road surfacing material over roadway joints, method of...

Roadway access device and method of using same