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MATERIALS:     1. Properties       Properties  

Hardness   Fragility  

Ductility   Flexibility/plasticity   Porosity/permeability   Density  

Conductivity   Durability   Recyclability   Sustainability/carbon   Cost   footprint  

BRICK  

Medium-­‐   Medium   high  

Very   low  

Very  low  

Medium-­‐low  

Medium   poor   2-­‐2.5  

high  

high  

Local,  1200  degrees   =CF  

Effective,   Labour  

Very   low  

Very  low  

Medium  

Med.  

Poor  

High  

Medium  

+  reduction  of  CF  

Labor  

CONCRETE   Med-­‐ BLOCK   high   +CLAY   BRICK  

Medium  

STONE  

I,  M,  S  

Thickness:   Very   area  ratio   low  

Rigid  

Pumice  –yes,  granite   -­‐no  

2.5-­‐3  

poor  

extreme  

Very  high  

High  enviro.  Cost  =   trans.  

scarcity  

METALS  

varied  

low  

high  

Med-­‐high  

yes  

high  

Pos/neg   depending   on  location  

Very   durable  

high  

High  embodied   energy  

effective  

RUBBER  

Resist   abrasion  

low  

high  

high  

waterproof  

1.5  

Very  poor  

very  

high  

renewable  

effective  

GLASS  

high  

high  

Very   low  

Very  high(hot)   Very  low  (cold)  

Non-­‐porous  

Med-­‐ high  

Heat  and   light  

very  

Very  high  

High  embodied   energy  

expensive  


Log book part 8