A cement alternative, one that is less polluting, cheaper and more durable, has emerged from research at the Brazilian São Carlos School of Engineering. Replacing clay and lime materials with magnesium oxide and other materials allows cement production at lower temperatures, thus cutting emissions of greenhouse-effect gases.

The new formula can only be used in the production of fiber cement, and will not completely replace the traditional Portland cement. “Fiber cement is not used for structural purposes, only for constructive elements like tiles or siding,” head engineer Carlos Gomes explained to Tierramérica.

“In addition to the technical aspects, we aim to create discussion about the indiscriminate use of certain materials in construction, those that do not take into account the environment, lifetime and destination of their production,” he said.