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Category Archive for: ‘Typar’
Khadagzai Bridge Abutment Slope Protection

Khadagzai Bridge Abutment Slope Protection: A layer of heavy stone, broken rock (rip-rap), gabions or pre-cast blocks is often used to provide permanent erosion protection for Submerged bridge piers and foundations. Khadagzai Bridge Abutment Slope Protection, erosion protection structures or armor systems dissipate the hydraulic forces that cause erosion, and they preserve the subgrade soil …

Erosion Control with Typar Geotextile

Typar geotextile provides a cost-effective replacement to conventional well graded filter between soil to be retained and concrete slab revetments which protect the filter geotextile. Road embankments are susceptible to soil erosion. For Suna road project, UEP used DuPont Typar geotextile to filter and prevent soil movement along the surface of the slope. Traditionally multi-phased …

Restoration of Saint Patrick’s Cathedral, Karachi

Overview Background: Saint Patrick’s Cathedral was built in 1845 using natural stone. With time the heritage building has experienced weathering and degradation, particularly along the plinth of the building. Ground moisture was identified as the main cause of degradation and weathering of the natural stone structure. Problem: As part of preservation and restoration work, a …

Filtration & Drainage for Water Logged Soil

Overview In drainage applications (controlled discharge of water) it has become standard practice to replace the conventional granular filter with a geotextile filter. A geotextile filter fulfills the same function: it prevents the clogging of the drain but with the advantage of easy installation and a controlled filter quality that is not compromised by poor …