Lightweight masonry block without Portland cement
Küçük Resim Yok
Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Assoc Brasileira Engenharia Sanitaria Ambiental
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Huge amounts of fly ash - a substance that does not conform to the ASTM C618 classification due to its chemical properties - have been abandoned in landfills around the world, despite their self-cementing property. It has not been used in concrete making applications due to its large amounts of free lime and sulfate contents. The fly ash in these plants is dumped in landfills, causing serious environmental hazards. Fly ash is disposed to the landfills by belt conveyors after being humidified with water. Therefore, the fly ashes humidified in the landfill areas are hydrated in nature. This hydration is further intensified in landfills by rain and snow. Thus, the free lime content of fly ash decreases due to its long hydration process. In this work, the lightweight masonry blocks were produced by mixing normal and hydrated fly ashes or normal, hydrated fly ash and lime without Portland cement. The compressive strength, water absorption, sorptivity, density, porosity, and thermal conductivity values of the samples produced were determined. The results obtained from these tests showed that lightweight masonry blocks could be produced by using these waste materials in building applications.
Açıklama
Anahtar Kelimeler
fly ash, disposed fly ash, lime, lightweight masonry block
Kaynak
Engenharia Sanitaria E Ambiental
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
26
Sayı
5
