Cement is vital for a country’s economic development, the basic ingredient required to build housing and infrastructure. The world cement market represented an estimated 3.7 billion tons in 2012(1), with demand continuing to increase at 5-6% per year(2) , driven by economic and demographic growth and by the increase in urbanization, especially in emerging markets.
However, cement manufacturing generates CO2 and the industry as a whole represents around 5% of global CO2 emissions.
• Around 60% of these result from the transformation of limestone at high temperatures – ‘decarbonation’ – to produce clinker, the basic component of cement.
• Approximately 40% are generated from the energy used in the burning process.
(1) Source : Global Cement Report Tenth Edition, International Cement Review ©2013
(2) Source : Oxford Economics, 2011