Investigation of physical and mechanical properties of mortars produced by polymer coated perlite aggregate
Yükleniyor...
Dosyalar
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
With its low unit weight, expanded perlite (EP) offers significant advantages in heat and sound insulation in the construction sector. However, due to its high-water absorption capacity, EP affects the physical and mechanical properties of concrete negatively. Therefore, it is aimed to reduce water absorption by coating the EP with polymer and thus to improve its mechanical and physical properties. In this study, mortar production was carried out by replacing coated and uncoated EP with CEN reference sand at 0%, 20%, 40%, 60%, and 80% respectively. The effective water/cement ratio of all produced mortar samples was determined to be 0.6. For coated and uncoated EP aggregate mortar series, unit weight, compressive strength, bending tensile strength, water absorption, ultrasonic pulse velocity (UPV), and thermal conductivity coefficient were determined. The results showed that the unit weight of the mortar samples decreased as the amount of EP increased, but their physical and mechanical properties also changed. Mortar samples with better thermal insulation properties were obtained with decreasing thermal conductivity values. The polymer coating of EP improved physical and mechanical properties. Especially in the 80% substituted EP series, the thermal conductivity decreased from 1.20 to a coefficient of 0.91 W/mK. © 2021
Açıklama
Anahtar Kelimeler
Compressive strength, Expanded perlite, High temperature, Mortar, Sorptivity, Thermal conductivity, Aggregates, Bending strength, Compressive strength, Construction industry, Mortar, Pearlite, Plastic coatings, Polymers, Sound insulation, Tensile strength, Thermal conductivity, Thermal insulation, Construction sectors, Expanded perlite, Mechanical and physical properties, Physical and mechanical properties, Thermal conductivity coefficient, Thermal insulation properties, Ultrasonic pulse velocity, Water/cement ratio, Water absorption
Kaynak
Journal of Building Engineering
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
38
