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Quality building materials come to the limelight

Star Business Report
The growing trend for high-rise buildings has been fuelling the demand for quality construction materials and skilled personnel, analysts said at a seminar on tall buildings yesterday.
“Skyscrapers are needed for a land-scarce and highly populated country like Bangladesh,” said Professor Munaz Ahmed Noor of Bangladesh University of Engineering & Technology (Buet), while raising the issue of shortage of high-quality building resources.
Although some local companies are manufacturing high-
strength steel and cement, a serious deficiency remains for quality concrete, a vital building material, according to Noor.
"Concrete for tall buildings is currently made on-site - - but they do not have the necessary skill to do so. We must produce higher quality concrete," he said.
Shamim Z Bosunia, a former Buet professor, highlighted the lack of practice among developers of high-rise buildings of undertaking concrete strength tests.
“We must have sufficient records about the strength," he said.
Noor also emphasised the importance of high-strength and high-performance steel as well.
"There is no scope to consider low strength materials for constructing tall buildings," he said, adding that local companies like BSRM are making premium qualitysteel.
“But challenges remain as construction of tall buildings requires bulk infrastructure and energy,” he said, while bringing into view the issues regarding foundation, cost and fire safety.
They spoke at a seminar, organised by Chittagong-based steelmaker BSRM at Sonargaon Hotel, on tall buildings, attended by academics, civil and structural engineers from real estate and construction firms.
The event comes at a time when developers, owing to falling land availability in cities and rising demand for home and office space, are focusing on buildings with increased height.
“In the past eight years, some sixbuildings going above 20 floors were constructed in the capital,” said Prof Md Shafiul Bari of Buet's civil engineering department.
Aameir Alihussain, managing director of BSRM, said construction activities expanded fast in the past 10 years and thereby accelerating the demand for steel.
“But our production has risen several times to meet the demand.”