Measurement of the speed of absorption of CO2 by Portland cement pastes and pure and additive mortars


Measurement of the speed of absorption of CO2 by Portland cement pastes and pure and additive mortars
Published in:	Engineering, Integration, and Alliances for a Sustainable Development. Hemispheric Cooperation for Competitiveness and Prosperity on a Knowledge-Based Economy: Proceedings of the 18th LACCEI International Multi-Conference for Engineering, Education and Technology
Date of Conference:	July 27-31, 2020
Location of Conference:	Virtual
Authors:	Luis Mosquera (Universidad Nacional de Ingeniería, PE) Joe Valerio (Universidad Nacional de Ingeniería, PE) Jesús Basurto (Universidad Nacional de Ingeniería, PE) Noemi Quintana (Universidad Nacional de Ingeniería, PE) Ana Torre (Universidad Nacional de Ingeniería, PE)
Full Paper:	#29

Abstract: We present here the results of experimental research on the speed of absorption of CO2 by Portland cement pastes and pure and additive mortars. The samples, introduced in a chamber, are exposed to a high concentration of CO2, simultaneously monitoring the temperature, relative humidity, pressure and concentration of CO2 present inside. The results show greater rapidity of carbonation both in cement pastes and in mortars when they are added with plasticizers, air incorporators or workability additives.