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- Title
Geri Dönüştürülmüş Atık EPS'nin Yüksek Dayanımlı Hafif Şap Üretiminde Kullanımının Araştırılması.
- Authors
ATABEY, İsmail İsa; ÖZCAN, Zehra ALMAZ; İLKENTAPAR, Serhan; DURAK, Uğur; KARAHAN, Okan; ATİŞ, Cengiz Duran
- Abstract
In this study, high-strength lightweight screed mortars were produced by replacing waste-expanded polystyrene (EPS) aggregate with river sand. It is aimed to reduce the unit weight and increase the thermal performance of the screed mortars produced for surface coating and leveling purposes by using waste EPS. For this purpose, a light screed mortar with cement dosages varying between 400-500 kg/m³, containing one group of conventional screed mortar and five groups of waste EPS was prepared. Waste EPS aggregates were replaced by river sand at the ratios of 0%, 20%, 40%, 60%, 80%, and 100% by volume. The flow table test, unit weight, water absorption, apparent porosity, capillary water absorption, compressive and flexural strength, abrasion resistance, and thermal conductivity properties of conventional and light screed mortars were measured. The unit weight of the mortars containing waste EPS was determined between 750-1950 kg/m3 and lightweight screed mortars were obtained. In addition, the thermal conductivity coefficient of conventional screed mortar decreased from 0.6617 W.m/K to 0.2553 W.m/K with waste EPS replacement, resulting in 61% lower thermal conductivity. Experimental results show that depending on the replacement ratio of the waste EPS aggregate, light screed mortars can be obtained in both medium strength and load-bearing lightweight concrete classes with different physical and mechanical properties. With the decrease in the unit weight of mortars, the thermal insulation property increases and it contributes to the decrease in the weight of the building. Thus, sustainable lightweight screed mortar was obtained in terms of earthquake load, insulation properties, and recycling of waste EPS.
- Publication
Duzce University Journal of Science & Technology, 2023, Vol 11, Issue 1, p288
- ISSN
2148-2446
- Publication type
Article
- DOI
10.29130/dubited.1069044