- abrams cone
- abrasion resistance
- absorped water
- absorption
- absorption of water
- abutment
- accelerate
- accelerating admixture
- acceptance tests ready mix concrete
- accidental
- accidental action
- accidental combination
- accidental design situation
- accidental situation
- accreditation
- acid attack
- acid treatment of the concrete surface
- acid-resistant
- acidity (pH)
- acoustic testing
- action
- action, permanent
- action, variable
- action-effect
- activator
- active end of the tendon
- activity index
- additions
- adhesive
- adhesive strength
- adhesive tape
- adiabatic
- adjust
- adjusting screw
- admixture
- admixtures
- adsorption water
- aerated concrete
- age at loading
- age of concrete
- aggregate
- aggregate size
- aggregate – chemical impurities
- aggregate – geometrical properties
- aggregate – mechanical and physical properties
- aggregates
- aggressive soil and ground water
- agitating equipment
- air bubble
- air content
- air entraining admixture
- air meter
- air voids
- air-conditioned room
- air-tight concrete
- alkali reactivity of aggregates
- alkali-silica reaction
- alkaline
- alkalis
- alloy
- alternating load
- alternating stress
- aluminous cement
- ambient temperature range/ambient weather conditions
- amorphous
- amplitude
- anchor
- anchor bearing
- anchor cone
- anchor cup
- anchor female cone
- anchor male cone
- anchor nut
- anchor plate
- anchor wedge
- anchorage
- anchorage in compression
- anchorage in tension
- anchorage length
- anchorage zone
- angle (in degrees)
- angle of friction
- angle of inclination
- angle of spread
- angular rotation
- anhydrite
- anisotropic
- anneal
- annealed wire
- anti wash-out concrete
- apparent specific gravity
- application rules
- approach
- approach span
- appropriate allowances
- approximate method
- aqueduct
- arch
- arch bridge
- architect
- area of reinforcement
- arm (of a couple)
- artificial ageing
- artificial foam
- assemble
- asymptote
- autogenous shrinkage
- auxiliary reinforcement
- auxiliary structure
- avalanche load
- average final crack spacing
- average stress
- award (of a contract)
- axial
- axial compression
- axial compression force
- axial force
- axial load
- axial stress
- axis (of a diagram)