- confident
- conform
- conforming structure
- congelation chamber
- congestion
- concourse
- concrete aggregate
- concrete beam
- concrete blender
- concrete breaker
- concrete carriageway
- concrete cofferdam
- concrete compactor
- concrete cover
- concrete curing
- concrete diaphragm
- concrete distributor
- concrete fabrication
- concrete footing
- concrete grade
- concrete gun
- concrete hauler
- concrete lane
- concrete masonry
- concrete pavement
- concrete pipe
- concrete product
- concrete protection
- concrete ring
- concrete rodding
- concrete sand
- concrete shrinkage
- concrete slab
- concrete stair
- concrete strength
- concrete stucco
- concrete technology
- concrete vibrator
- condensate
- condensate formation
- condensation tank
- condense
- condenser
- conductive
- conduit
- cone coefficient
- cone joint
- confess
- confetti
- confined charge
- confinement anchorage
- confluence
- conglomerate
- conglomeration
- congress
- conic
- conic hole
- conical
- conical bottom
- conical cutter
- conical dome
- conical dune
- conical fracture
- conical head
- conical hole
- conical paving
- conical projection
- conical roof
- conical vault
- computability
- computer aided
- computer animation
- computer generation
- computer session
- computer terminal
- concave bank
- concave crown
- concealed door
- concealed gutter
- concealed works
- concentrated sand
- concentric arch
- concept
- concern
- conchoidal
- concrete admixture
- concrete brick
- concrete chimney
- concrete coating
- concrete composition
- concrete core
- concrete curb
- concrete dehydration
- concrete haunch
- concrete layer
- concrete lintel
- concrete mix
- concrete mixer
- concrete pad
- concrete plug