2024-03-28T10:21:30Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/76522023-04-21T00:05:21Zcom_10259_4204com_10259_5086com_10259_2604col_10259_5373
00925njm 22002777a 4500
dc
Salas, Miguel Ángel
author
Pérez Acebo, Heriberto
author
Calderón Carpintero, Verónica
author
Gonzalo Orden, Hernán
author
2020-11
Due to the considerable amount of waste plastics and polymers that are produced annually,
the introduction of these waste products in construction materials is becoming a recurrent solution
to recycle them. Among polymers, polyamide represents an important proportion of polymer
waste. In this study, sustainable and lightweight mortars were designed and elaborated, substituting
the aggregates by polyamide powder waste. Mortars were produced with various dosages of
cement/aggregates, and the polyamide substitutions were 25, 50, 75, and 100% of the aggregates.
The aim of this paper is to determine the density and the compressive strength of the manufactured
mortars to observe the feasibility for being employed as masonry or rendering and plastering mortars.
Results showed that with increasing polymer substitution, lower densities were achieved, ranging
from 1850 to 790 kg/m3
in modified mortars. Mortars with densities below 1300 kg/m3 are cataloged
as lightweight mortars. Furthermore, compressive strength also decreased with more polyamide
substitution. Obtained values in recycled mortars were between 15.77 and 2.10 MPa, but the majority
of the values (eight out of 12) were over 5 MPa. Additionally, an economic evaluation was performed,
and it was observed that the use of waste polyamide implies an important cost reduction, apart from
the advantage of not having to manage this waste material. Consequently, not only the mechanical
properties of the new recycled materials were verified as well as its economic viability.
http://hdl.handle.net/10259/7652
10.3390/polym12112657
2073-4360
Polyamide
Waste material
Waste polyamide
Mortar
Lightweight mortar
Compressive strength
Sustainable material
Analysis and Economic Evaluation of the Use of Recycled Polyamide Powder in Masonry Mortars