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Week 1
Bricks -> require a bond Extruded bricks vs. pressed bricks
Introduction to construction Materials o
Materials used in construction include: timber, steel, concrete and bricks
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Timber -> wood
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Softwood (SW) which comes from plantations, e.g. pine Kill dried hardwood ((kd)hw) which comes from old forest plantation Other abbreviations include: laminated veneer timber (lvl) and medium density fibreboard (mdf)
STANDARD BRICK DIMENSIONS
Steel -> Iron + carbon (as ordinary iron can be brittle) Universal beam (ub) and universal column (uc)
Structures o o o o o
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Channel Flange Other abbreviations: parallel flange channel(pfc), square/circular/rectangular hollow section (shs/chs/rhs), ua/ea (unequal angle/ equal angle)
Concrete -> cement
Types of structures include: mass structures, column + beam structures, and tensile structures Mass construction -> compression o
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(Portland) + water + course aggregate (crushed rock) + fine aggregate Reo = reinforcement Reinforcement includes: trench mesh and m12 TRENCH MESH
Materials involved in small mass construction include: clay bricks, concrete, mortar (sand+ cement+ water) Materials involved in large mass construction include: precast concrete panels Precast vs. in situ (on site) The usage of precast materials allows for quality assurance, less on-site labour which decreases the time for construction, allows larger panels to be produced