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Environmental Responsibility |
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Society
expects the construction industry to take responsibility
for the environmental impact of its activities and
use methods that involve less environmental impact
and creative safety. The use of precast concrete supports
these initiatives through such benefits as: |
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reduced waste; |
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reduced pollution; |
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greater construction speed; |
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increased quality; and |
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improved site safe |
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Redland
Precast products are manufactured in a controlled,
factory environment in an industrial zone. The products
are re-cyclable and are composed of materials that
exist in plenty. Where possible, moulds and packing
materials are re-cycled.
The production process of precast concrete embodies
little energy, compared with other common building
materials, a fact highlighted by this survey conducted
by the Environmental Council of Concrete Organisation.
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Environmental
Comparison |
Material |
Energy
Use |
Solid
Waste |
Carbon
Dioxide |
Carbon
Monoxide |
Methane |
Nitrogen
Oxides |
Sulphur
Dioxide |
|
Gj/metric ton |
Kg/metric ton |
Kg/metric ton |
Kg/metric ton |
Kg/metric ton |
Kg/metric ton |
Kg/metric ton |
Wood
Kiln-dried softwood
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5.81 |
282 |
517 |
1,062 |
65 |
1,627 |
251 |
Plywood
Softwood structural plywood
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10.40 |
65 |
587 |
986 |
64 |
1,621 |
148 |
Steel
Hot-rolled sheet
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25.79 |
217 |
1,731 |
24,920 |
90 |
2.570 |
6,130 |
Precast Concrete |
1.59 |
6 |
215 |
127 |
6 |
1,771 |
62 |
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The survey considers three
product groups ¡V concrete, wood, and steel. For each
group, researchers considered the cradle-to-grave impacts
on energy expended in all phases of production, transportation,
and construction; gaseous and solid wastes generated
at each stage; and resource depletion. |
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