Case 4 Soil retaining wall
LCA Studies
The use of Geosynthetics leads to lower impact in all categories:
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~ 75% reduction of non-renewable cumulative energy demand (CED).
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~ 85% reduction of cumulative greenhouse gas emissions.
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Every 3 linear meters soil retaining wall (3 meter high) saves 30,000 MJ eq, which is equivalent to the energy consumption of one household per year.
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At the same time, the use of geosynthetics generate cost savings (see graph below)
This study shows
​The use of geosynthetics leads to:
-
lower impact in all categories
-
~ 75% reduction of Non renewable cumulative energy demand (CED)
-
~ 85% reduction of cumulative greenhouse gas emissions
-
Every 3 linear meters soil retaining wall (3 meter high) saves 30,000 MJ eq, which is equivalent to the energy consumption of one household per year!
LCA case 4
Cost comparison
Cross section
Retaining concrete wall reinforced with steel (strength class B300)
Soil wall reinforced with geosynthetics (LTDS 14 kN/m)
Bridge abutment reinforced concrete
Surface
Retaining wall reinforced with concrete
Soil wall reinforced with geosynthetics