img
The effect of limestone and bottom ash sand with recycled fine aggregate in foam concrete       
Yazarlar
Osman Gençel
Bartın Üniversitesi, Türkiye
Bekir Balcı
Doç. Dr. Oğuzhan Yavuz BAYRAKTAR Doç. Dr. Oğuzhan Yavuz BAYRAKTAR
Kastamonu Üniversitesi, Türkiye
Mehrab Nodehi
Ahmet Sarı
Karadeniz Teknik Üniversitesi, Türkiye
Gökhan Kaplan
Atatürk Üniversitesi, Türkiye
Gökhan Hekimoğlu
Karadeniz Teknik Üniversitesi, Türkiye
Aliakbar Gholampour
Ahmet Benli
Bingöl Üniversitesi, Türkiye
Togay Özbakkaloğlu
Özet
To follow resource conservation, the production of optimized and sustainable structures through the use of insulating materials, such as foam concrete, has become a trend in construction industry. Although foam concrete has numerous benefits, the larger use of Portland cement in its mixture and its relatively low thermo-durability properties because of the low quantity of solid materials are of major concerns, challenging its large-scale applications. In that respect, this research evaluates the use of recycled fine concrete aggregate, limestone and bottom ash sand as the main aggregate materials to evaluate the physico-mechanical and thermo-durability properties of foam concrete. To that end, 25 mixes have been produced and a comprehensive series of tests including flowability, compressive and flexural strengths, water absorption, apparent porosity, drying shrinkage, sorptivity, abrasion resistance, thermal conductivity, along with the effect of elevated temperature and its respective cooling regime on foam concretes have been conducted in this study. The results show that foam concretes manufactured with bottom ash and recycled fine aggregates develop a considerably lower thermal conductivity values despite being outperformed in physico-mechanical properties by those mixes produced with limestone sand. Nonetheless, the inclusion of bottom ash sand is found to produce foam concretes with a comparable physico-mechanical and thermo-durability properties to mixes with limestone. The results of this study point to the suitability of utilizing alternative fine-sized aggregates, such as recycled fine aggregates along with bottom ash sand, in the production of foam concrete without compromising the insulating properties of the produced concrete.
Anahtar Kelimeler
Bottom ash sand | Cooling regime | Foam concrete | Physico-mechanical properties | Thermo-durability properties
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF BUILDING ENGINEERING
Dergi ISSN 2352-7102
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 08-2022
Cilt No 54
Sayı 104689
Doi Numarası 10.1016/j.jobe.2022.104689
Makale Linki http://dx.doi.org/10.1016/j.jobe.2022.104689