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Serving Sri Lanka

This web log is a news and views blog. The primary aim is to provide an avenue for the expression and collection of ideas on sustainable, fair, and just, grassroot level development. Some of the topics that the blog will specifically address are: poverty reduction, rural development, educational issues, social empowerment, post-Tsunami relief and reconstruction, livelihood development, environmental conservation and bio-diversity. 

Tuesday, October 11, 2005

Sea sand – an unique alternate raw material for the construction industry

The Colombo Times: 04/10/2005" By Sunil C.perera

Sand is an unique raw material for the construction industry, at present, but contractors say that they have to spend more allocations for obtaining bulk loads of sand for their construction work.

But, most of small scale contactors, specially National Engineering Research and Development Institute NERD and its registered agents who connect with the pre-cast cement products use alternative materials as sand.

Quarry dust is one of alternative raw material for the construction industry, but most contractors and the house owners are not showing any interest in using quarry dust for their constructions.

According to the industry sources, the price levels of the river sand has skyrocketed.Tractor load of river sand will cost over 5000 Rupees , a leading contractor said.

Meanwhile, the Land Reclamation and Development Board plans to popularize the use of sea sand as an alternative to river sand.

According the experts in the global construction trade that Sea sand is being used in the construction industry in the Asian region and some leading European countries. Civil Engineering Department of University of Moratuwa and the National Building Research Organization [NBRO] have confirmed that the sea sand pumped from a distance about ten kilometres is very suitable for the building construction industry .

“It has less chloride if we compare with sea sand in beaches, the experts said.

According to the industry figures, the price of the river sand has increased by over 40 per cent after the banning of removing river sand. The tsunami is another reason for the price incense, they said.

Due to the government barriers on the removal of river sand, the construction industry faces lots of difficulties to obtain river sand in time.

The Land Reclamation and Development Board says that their institution is now pumping bulk load of sea sand for the industry purposes. The institution says that their Sea sand stocks are available at the Muthurajawela site.

“We just started our marketing activities, said an official of the Land Reclamation and Development Board. According to the board’s sources the washed sea sand is ideal for concrete and plastering activities.

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