Verified Certificate

Supported by the following organizations

This is to certify that Andrés Daniel Pérez Roa successfully completed and received a passing grade in cementX: Cement Chemistry and Sustainable Cementitious Materials a course of study offered by EPFLx, an online learning initiative of Ecole Polytechnique Federale de Lausanne.

Noted by

Prof. Karen Scrivener

Prof. Karen Scrivener

Director of the Laboratory of Construction Materials École polytechnique fédérale de Lausanne

About edX

edX offers interactive online classes and MOOCs from the world’s best universities, including MIT, Harvard, Berkeley, University of Texas, and many others. edX is a mission driven initiative created by founding partners Harvard and MIT.

About edX Verified Certificates

An edX Verified Certificate signifies that the learner has agreed to abide by the edX honor code and completed all of the required tasks of this course under its guidelines, as well as having their photo ID checked to verify their identity.