Construction Technology Flashcards
concrete vs steel?
Steel ADV More flexible and has reduced construction time - lightweight possible resulting in cheaper foundations
Steel often has cheaper site costs as it is less labour intensive - recyclable
Steel DISADV Requires fire protection - Steel price fluctuates – not suitable for town centres (delivery)
Conc ADV Doesnt require fire protection - Could be cheaper than steel depending on steel market - In situ allows alteration at later stages - Good sound/heat insulator – low maintenance for insitu
Conc DISADV greater site costs as it requires more skilled labour and time – heavier – needs reinforcement
Steel Cost - £1750-1950/t
Concrete Cost - £74/m3 – airport £90
basement construction?
excavate and disposalof topsoil piles (including rig, hardstanding, testing cutting) excavate and disposal of arisings prep excavated surface waterproofing blinding concrete to retaining walls and slab reinforcement formwork finishes internal finishes
types of foundation
pad, raft, strip, piled
types of piles
driven, bored - secant, sheet, contiguous, screw
types of drainage?
channels, gratings, gullies
filter, narrow filter, CKD, fin, culvert, swale
what are the buildings regs?
regulations that ensure minimum standards for construction and consider safe access
- A) Structure B) Fire Safety C) Site preparation and resistance to moisture D) Toxic substances E) Resistance to sound F) Ventilation G) Sanitation, hot water safety and water efficiency H) Drainage and Waste Disposal
- J) Combustion Appliances and fuel storage systems K) Protection from falling, collision and impact
- L) Conservation of fuel and power M) Access to and use of building
- N) Glazing – safety in relation to impact, opening and cleaning (WITHDRAWN – EXCEPT WALES)
- P) Electrical safety Q) Security – Dwellings R) Physical infrastructure for high speed-electronic communication networks 7) Materials and workmanship
types of basement
retaining wall and raft
box and cellular raft
piled
