2026-06-18T03:27:52Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/101242025-02-01T01:05:41Zcom_10259_6251com_10259_5086com_10259_2604col_10259_6252

Salas García, Miguel Ángel Gadea Sainz, Jesús Gutiérrez González, Sara Horgnies, M. Calderón Carpintero, Verónica 2025-01-31T12:18:43Z 2025-01-31T12:18:43Z 2016 1359-5997 http://hdl.handle.net/10259/10124 10.1617/s11527-015-0726-z 1871-6873 This paper presents an investigation into the incorporation of polyamide powder waste in mortars with a polymeric organic soluble non-ionic surfactant. Several samples were prepared by replacing the aggregate with amounts of 0, 25, 50, 75 and 100 % polyamide powder, to obtain lightweight materials. It was found that the presence of powder waste modifies the characteristics of fresh and hardened mortar while maintaining suitable properties such as workable life, water retention, vapour permeability and bonding in mixtures with up to 50 % of sand replaced by polyamide. The surfactant modifies the matrix microstructure and contributes to the hydration of the various cement phases. The assessed mechanical strength after performing the accelerating ageing tests remains sufficient with moderate amounts of waste, meaning that these mortars possess good overall durability. The experimental results showed that the addition of polyamide waste makes it possible to obtain lightweight materials more environmentally sustainable for use as masonry mortars. application/pdf eng Springer Materials and Structures. 2016, V. 49, n. 8, p. 3385–3395 https://doi.org/10.1617/s11527-015-0726-z Lightweight mortar Polyamide Durability Surfactant Materiales de construcción Resistencia de materiales Building materials Strength of materials Recycled polyamide mortars modified with non-ionic surfactant: physical and mechanical strength after durability tests info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess Materials and Structures 49 8 3385 3395