A comparative study of petroleum coke and silica aerogel inclusion on mechanical, pore structure, thermal conductivity and microstructure properties of hybrid mortars
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Development of cost-effective and energy - efficient materials is an on-going effort in construction sector. For this purpose, researchers have focused on utilizing various industrial by - products and nano thermal insulation materials in cement - based mixtures in recent years. This paper presents a comparative study on mechanical, pore structure, thermal conductivity properties and microstructure morphology of hybrid mortar mixtures containing petroleum coke as a partial replacement of sand (0%, 10% and 15%, by weight) and silica aerogel powder as a cement additive (0.35%, 0.7% and 1.0%, by weight). Results showed that a thermal conductivity reduction of 21.83% was determined at an aerogel content of 0.35% with higher compressive, flexural strengths and toughness capacities. Moreover, there was an insulation enhancement in the petroleum coke-incorporated samples up to 33% at a replacement level of 15%. However, in the case of equivalent thermal conductivity, compressive toughness and post - peak toughness capacities of aerogel-incorporated mixtures were higher up to respectively 20% and 17% in comparison to petroleum coke-incorporated mixtures. This research opens up a new perspective in the design of hybrid cement mortars containing silica aerogel powder and petroleum coke with the optimization of mechanical-thermal insulation properties.
Açıklama
Anahtar Kelimeler
Silica aerogel, Petroleum coke, Thermal conductivity, Hybrid mortar, Slag
Kaynak
Journal Of Building Engineering
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
31
