2020
DOI: 10.1016/j.conbuildmat.2020.120579
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Influence of waste glass powder on the physico-mechanical properties and microstructures of fly ash-based geopolymer paste after exposure to high temperatures

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Cited by 117 publications
(27 citation statements)
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“…Metakaolin (MK), fly ash (FA), slag (BFS), and pozzolans (PZ) are used in combination with a suitable alkaline activator as raw materials. The use of WG to prepare alkali-activated materials has been published in several studies [1][2][3][4][5][6][7]. The favourable effect of temperature on their strength has been confirmed Xiao [2] studied WG from soda-lime glass bottles as a raw material for geopolymer preparation.…”
Section: Introductionmentioning
confidence: 95%
“…Metakaolin (MK), fly ash (FA), slag (BFS), and pozzolans (PZ) are used in combination with a suitable alkaline activator as raw materials. The use of WG to prepare alkali-activated materials has been published in several studies [1][2][3][4][5][6][7]. The favourable effect of temperature on their strength has been confirmed Xiao [2] studied WG from soda-lime glass bottles as a raw material for geopolymer preparation.…”
Section: Introductionmentioning
confidence: 95%
“…Saavedra et al [11], uçucu kül ve yüksek fırın cürufu esaslı geopolimerin, geleneksel Normal Portland çimentosu ile üretilen betona kıyasla sülfat saldırısına karşı daha iyi direnç gösterdiğini ve Sagoe-Crentsil et al [12], geopolimerlerin daha düşük sünme ve kuruma büzülmesine sahip olduğunu belirtmişlerdir. Hu et al [13], geopolimerlerin aderans ve aşınma dirençlerinin çimento esaslı onarım malzemesinden daha iyi olduğunu ve Sakkas et al [14] ayrıca, geopolimerlerin genellikle seramik benzeri mikro yapıları ve özelliklerinden dolayı yüksek sıcaklıklara maruz kaldıktan sonra iyi termalfiziksel ve mekanik özelliklere sahip olduğunu ifade etmişlerdir [15]. Geopolimerler ile ilgili son yıllarda yapılan derleme çalışmalarında detaylı bilgi mevcuttur [1,[16][17][18] [25], perlit esaslı geopolimerlerde kür süresi ve kür sıcaklığının etkisini araştırmışlar ve sonuç olarak en iyi dayanımı veren karışım; 15,5 NaOH molaritesinde, 24 saatlik kür süresi ve 110ºC'de elde edilmiş olup bu değer 46,76 MPa olarak belirlenmiştir.…”
Section: Normalunclassified
“…Thus, to tackle these problems of FA and any other waste materials, efforts have been made towards re-use of them in an efficient and green way; for instance, high volumes of FA have been used to replace Portland cement in different types of concrete and cementitious composites [40][41][42][43][44][45][46][47]. More recently, FA has been utilized as an alternative source to make geopolymer paste [48,49], mortar [50,51], and concrete [52][53][54].…”
Section: Introductionmentioning
confidence: 99%