|The southern province of Cà Mau is using pre-fabricated barriers to build embankments to prevent coastal erosion and landslides. — Photo: sggp.org.vn|Viet Nam News
CÀ MAU— The southern province of Cà Mau is using pre-fabricated barriers made of non-metallic reinforced concrete to prevent landslides and coastal erosion.
Lê Văn Sử, deputy chairman of the Cà Mau’s People’s Committee, said that plastic and spun concrete had previously been used but the cost was too high, about VNĐ30 billion (US$1.28 million) per km.
To prevent landslides on 2.1km of seaside in Rạch Gốc commune, the province is using non-metallic reinforced concrete made of glass-fibre reinforced polymer, polypropylene fibres, polyester fibres and other types of non-metallic fibres.
The fibres are waterproof and non-corrosixe, according to Tô Quốc Nam, deputy chairman of the province’s Agriculture and Rural Development.
The holes in the embankment walls also bring silt and sediment for the province’s protection forest.
The Bà Rịa-Vũng Tàu Sewerage and Development Ltd Company, the main contractor for the project, said the pre-fabricated materials were solving problems caused by weather and hydrology, and were easy to maintain.
The total investment of the new materials for the project is VNĐ37 billion (US$1.58 million), far less than plastic and spun concrete.
The province aims to complete the embankments as soon as possible to ensure safety for residents in the commune.
Cà Mau Province has the longest coastline (254 kilometres) in the Cửu Long (Mekong) Delta. About 105km are prone to landslides. — VNS