The present research assistance is developed around the realization of a technological surveillance that allows to form a supported base of information to the research project “Evaluation of harvest by-products and transformation of prioritized agro-chains in Tolima for obtaining construction materials. Rice and Coffee Case”. The research focuses specifically on exploring through the implementation of a technological surveillance, previous studies about construction materials made by by-products or residues of a coffee agro-chain, followed by this, the identification is carried out, through the application of the AHP multi-criteria method to Viable alternatives of construction materials in which the SACs of the department of Tolima can be implemented and in this way highlight regional capacities around the department's coffee production. Finally, with the data obtained, the coffee husk was identified as the best selection of SAC as a result, applied in the manufacture of cement to be subsequently implemented in the continuity of the research base project.