HAVANA, June 3 After 10 years of research, testing, conferences and refinement of formulas, the first Cuban ecological cement could begin to be manufactured this year in Sancti Spíritus.
Cuban and Swiss experts, led by Professor Fernando Martirena, have been working to find the solution to the second most used material in the world and responsible for 8% of carbon dioxide emissions into the atmosphere, which is why the LC3 emerged or calcined clay cement, which is in the process of commercial industrial testing at the Siguaney cement factory.
“The mixture has as a novelty the synergy between calcined clay and limestone, which influences the reduction of clinker volumes, the most polluting element in common compositions, and thus reduces carbon dioxide emissions,” Martirena told the newspaper. Escambray. The LC3 formula was discovered in 2009, the result of collaboration between the Center for Research and Development of Structures and Materials (CIDEM), attached to the Central University ‘Marta Abreu’ of Las Villas, and the École Polytechnique Fédérale de Lausanne , Switzerland; and in 2010 it was presented in Cuba and Siguaney was designated as the experimental factory.
“In 2013 we made 113 tons of LC3 in the factory with very good results and now we are preparing what could be called the first experimental commercial production because we are going to make about 4,000 tons,” said Martirena.
The material is already having international demand. It is currently being tested in Guatemala, Colombia, Ecuador, Peru, Mexico and other countries in the area, as well as China and Thailand. “In India we are in five cement companies, in Europe we are starting in Portugal and possibly in Denmark, there is a big demand in the world at the moment”, shared the Cuban expert.