Financial Times

ICC re-introduces pre-stressed hollow core concrete slabs
Pre-stressed hollow-core concrete slabs used in commercial building projects in the sixties made a comeback into Sri Lanka's construction industry last week through the International Construction Consortium Ltd (ICC), one of the largest construction and civil engineering companies in the country.

The slabs, prefabricated to exacting international standards with German technology, will provide a 30 percent direct saving on the cost of building cast in-situ slabs for multi-storey buildings, and other indirect cost savings on time and more economical supporting structural elements, the company said in a statement.

Use of these slabs also provide architects and designers with floor spans of up to 10 metres without erection support, making them ideal for large commercial and industrial high-rises, the country's top construction sector professionals were told at a gala launch dinner in Colombo.

Pre-cast at ICC's sprawling facility at Madapatha with German Weiler Technology, these slabs not only save time and money, but also provide unlimited planning scope, are extremely easy to install and do not require form work, scaffolding, plastering or after treatment, ICC's Director (Designs and Estimates), Vajira Nagodavithane said. The slabs, which are 40 percent hollow, are 1.2 metres wide and upto 10 metres long with a depth of 150mm or 200mm.

The erected on-site cost for these slabs would be Rs. 180 per square foot for 150mm depth and Rs. 192 per square foot for 200mm depth, he said.

Right-Construction sector professionals examine the hollow core slab at its launch.

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