Rio Tinto Smelter Modernization
Kitimat, British Columbia, Canada
Rio Tinto is a leading international mining group involved in exploration, mining and processing mineral resources worldwide. In 2011, Rio Tinto Alcan began a 4.8 billion dollar modernization project of its 60 year old aluminum smelter in Kitimat, BC. The Kitimat Modernization Project (KMP) will boost production by 48% to 420,000 tons per year and reduce overall facility emissions by 50% making this facility one of the most modern smelters in the world and among the largest of Rio Tinto’s smelters. Modernization includes construction of new potlines consisting of 360 pots housed in 6 buildings compared to the smelter’s 900 smaller pots in 15 buildings. A potline building houses a series of pots (large electrolyte cells) that produce aluminum that can extend for more than a kilometer (0.6 miles) in length. All of the concrete, especially that on the building floors is going to be exposed to an extreme amount of abrasion wear, so the project team knew they needed a concrete hardening solution.
Hard-Cem was chosen as that concrete durability enhancing solution because of its proven performance in demanding mining environments. Conditions where concrete is subject to impact and abrasion from loaders, fork lifts and other transport vehicles moving raw materials and finished goods from processing and production facilities to warehousing. Hard-Cem will not affect conductivity of concrete making it an effective superior performing product for the smelter’s electrical environment. Over 500 tonnes of Hard-Cem was used in approximately 12,500 m3 (16,700 yd3) of concrete in the KMP.
Hard-Cem integral concrete hardener is a proven technology that will maintain the integrity of concrete relative to abrasion and erosion. Hard-Cem is unique in its ability to enhance the integrity of air-entrained and non-air entrained concretes. Hard-Cem delivers value and quality assurance for projects.
Hard-Cem is an Integral Hardening Admixture used to increase Abrasion and Erosion resistance of concrete. Hard-Cem is added to the concrete at the time of batching to increase the hardness of the concrete and expand concrete wear life. It outperforms and overcomes deficiencies of labor intensive surface applied hardeners, and can be used to enhance...