Cuban and Swiss specialists develop a formula to produce cement, one of the most used materials in construction, which is less expensive, more resistant and less harmful to the environment.
This is the Limestone Calcined Clay Cement (LC3), a mixture that has as a novelty the synergy between calcined clay and limestone, which influences the reduction of the volumes of clinker, the most polluting element in the compositions common, as per Radio HC.
Fernando Martirena, director of the project at the Central University of Las Villas (UCLV), based in the Cuban city of Santa Clara, told that the reaction produces carboaluminates, which dramatically improve cement strength.
"The novelty of the LC3 not only lies in its environmental potential but also reduces production costs due to the feasibility of the materials and its strength can be compared to unmixed cement such as Portland despite having 50 percent less of clinker ", adds the specialist.
Martirena, who is the head of the Center for Research and Development of Construction Materials (Cidem), attached to the UCLV, said that "only with about 300 tons of LC3 we managed to reduce carbon emissions globally by one percent", as per Radio HC.
"The Kyoto protocol established the need to reduce the percentage of emissions in 12 units and we are talking about achieving one percent less with a single technology and a minimum investment in less than three years," he added.
To that end, experts from Cidem and the École Polytechnique Fédérale de Lausanne, Switzerland have been working since 2009 as a whole, with results that currently extend across Asia, Europe and America.