Effect of Addition of Polyurea as an Aggregate in Mortars: Analysis of Microstructure and Strength

The addition of polymers in construction is a new tendency and an important step toward the production of structures with better functional properties. This work investigates the addition of polyurea (PU) as a polymeric material in mortars. Polymer mortars were manufactured with the addition of polyurea retained in different sieves (T50 and T100) and different concentrations (2% and 5%). The characterization of the, polyurea (PU)control mortar (PU0%) and manufactured polyurea mortars (PU2%T50, PU5%T50, PU2%T100, and PU5%T100) was conducted by means of morphological analysis, SEM, XRF, TGA, and a compressive strength test of hydraulic mortars. The results show that mortars with polyurea retained in sieve 100 with a particle size of 150 m exhibit better thermal behavior and a greater resistance to compression with a concentration of 5% polyurea with respect to the other samples. The present work reveals that polyurea retained in sieve 100 can be considered as a polymeric additive for mortars, indicating that it could be a candidate for applications such as construction.

• Autores: Chacon, Hernan
• Fecha de publicación: 2022
• Institución: Universidad del Atlántico
• Repositorio: Repositorio Uniatlantico
• Idioma: eng
• OAI Identifier: oai:repositorio.uniatlantico.edu.co:20.500.12834/809
• Acceso en línea: https://hdl.handle.net/20.500.12834/809; https://www.scopus.com/inward/record.uri?eid=2-s2.0-85129924096&doi=10.3390%2fpolym14091753&partnerID=40&md5=8319d93ca289637113407f6cfb6cf4e0
• Palabra clave: mortar; polyurea; characterization; construction
• Rights: openAccess
• License: http://creativecommons.org/licenses/by-nc/4.0/