The microstructural and physical properties of renovation renders with clinoptilolite, Na-P1 and Na-X zeolites

摘要

Renovation renders are systems with drying and desalinating functions. The paper was aimed at investigating the influence of adding two different types of synthetic zeolites (Na-X, Na-P1) and natural zeolite (clinoptilolite) on the properties of the base layer of renovation renders. The material was also modified with perlite. The highest compressive strength (4.98 Nfinm 2 ) was achieved by the renders with clinoptilolite. The superior frost resistance was obtained by the renders without perlite addition (0.96% for clinoptilolite, 1.07% for Na-P1 and 1.53% for Na-X). The lowest mass loss after the salt test occurred in the render with Na-X zeolite and reached 4.2%. The renders with natural zeolite were characterized by the mass loss in the range as low as 0.21-0.45%. (C) 2020 Elsevier Ltd. All rights reserved.