Radcon Formula #7 Waterproofs Bridge Over Mekong River

Maunsell choose Radcon Formula #7 to waterproof
"Friendship Bridge", Thailand - Laos

SITE DETAILS
COUNTRY: Thailand
SITE: Mekong River Bridge
APPLICATOR: Radcon Thailand
CONTRACTOR: John Holland
CONSULTANT: Maunsell
YEAR: 1994
SIZE: 2000 square metres

John Holland Constructions completed the construction of the Mekong River Bridge, officially known as the "Friendship Bridge". The 1.23 km bridge spans the 700 metre wide river between Nung Khai in the north east of Thailand and Tha Naleng in Laos.

The bridge superstructure was built by the balanced cantilever method, due to the difficulty of constructing temporary supports when the river level is high. Each span starts at the pier and progresses in both directions until the cantilevers are joined at the mid-span section. Radcon Formula #7 was applied to the surface and construction joints of this mid-span section which was poured in-situ. There were some 21 mid-span sections in total.

Radcon Formula #7 was accepted by Maunsell Engineers as the preferred waterproofing system, as it provided a cost effective alternative to the original membrane specification. John Holland was happy with the performance of the product, specifically the ease of application and unlimited shelf-life of the product in such a remote area.

This is now the second time John Holland have utilised Radcon Formula #7 in offshore work, the former application by John Holland was in the construction of an airport hangar in Bangladesh.