Quality concrete for construction in Karakalpakstan

Nukus Sky House LLC
Karakalpakstan, Uzbekistan
Production line for reinforced concrete
Investment Size
US$ 280,374
Financial results
Payback of 6 years
Energy savings
912 MWh per year
Water savings
9,425 m3 per year
CO2 savings
136 tonnes per year
Increased production output, improved quality and competitiveness
Taiwan Business-EBRD Cooperation Fund, Federal Finance Ministry Republic of Austria

Good construction relies on good materials. An Uzbek company invested in efficient equipment to provide better reinforced concrete.

A GEFF loan helped a company in Karakalpakstan to vastly improve the quality of construction material supplied to its building sites.
Nukus Sky House LLC is located in Nukus City, just a few hundred kilometres south from the disappearing Aral Sea. The company is active in the construction sector, mainly manufacturing reinforced concrete and ready mixed concrete for other building companies. Concrete and reinforced concrete are the two most commonly used construction materials in the world. In reinforced steel, the compressive stress is usually taken on by the concrete since it resists compression well. However, its tensile strength is low, therefore steel reinforcing bars are placed where tensile stress occurs in the construction.
The manufacture of concrete is fairly simple, yet highly energy intensive. First, the cement is prepared. Next, the other ingredients—aggregates (such as sand or gravel), admixtures (chemical additives), any necessary fibres, and water—are mixed together with the cement to form concrete. The concrete is then shipped to the building site where it is placed, compacted and cured. The most energy intensive process is the vibration and mixing, where a homogenous mixture is prepared.
Due to the outdated production line, the Nukus Sky House was unable to meet the demand for high quality concrete products in an increasingly vibrant construction market in the Karakalpakstan region. The capacity of the old production line was approximately 1,000 units of reinforced concrete blocks and 700 m3 of ready mixed concrete per month, i.e. an average production capacity 10 m3/h and a specific annual energy consumption is 6,000 kWh/m3.
To better meet the increasing demand but also to reduce the cost of its operations the company invested in a new concrete production line, bring its capacity up to 50 m3/h while halving its specific energy consumption to 2,960 kWh/m3 and GHG emission reductions of 136 tonnes CO2e /year.
The new equipment was financed with a US$ 280,374 GEFF loan from Sanoat Qurilish Bank. The company was supported by the GEFF Team, which provided technical advice and assistance, free-of-charge to the company and financed by the TaiwanBusiness-EBRD Technical Cooperation Fund and the Federal Ministry of Finance of the Republic of Austria.
The Green Economy Financing Facility in Uzbekistan was developed by the European Bank for Reconstruction and Development (EBRD) and is supported by the TaiwanBusiness-EBRD Technical Cooperation Fund and the Federal Ministry of Finance of the Republic of Austria.