Metakaolin‐based geopolymer concretes for nuclear protection: On the perspective of physicochemical, durability, and microstructure

BAYRAK, BARIŞ; Kaplan, Gökhan; Öz, Ali; Perişanoğlu, Esra Kavaz; Çelebi, Oğuzhan; ALCAN, HALUK GÖRKEM; Mohabbı, Mehrzad; Aydın, Abdulkadir Cüneyt

doi:10.1002/suco.202200839

Metakaolin‐based geopolymer concretes for nuclear protection: On the perspective of physicochemical, durability, and microstructure

Yazarlar (8)

Dr. Öğr. Üyesi Barış BAYRAK Kafkas Üniversitesi, Türkiye

Gökhan Kaplan
Atatürk Üniversitesi, Türkiye

Ali Öz
Atatürk Üniversitesi, Türkiye

Esra Kavaz Perişanoğlu
Atatürk Üniversitesi, Türkiye

Oğuzhan Çelebi
Atatürk Üniversitesi, Türkiye

Dr. Öğr. Üyesi Haluk Görkem ALCAN Kafkas Üniversitesi, Türkiye

Mehrzad Mohabbı
Türkiye

Abdulkadir Cüneyt Aydın
Atatürk Üniversitesi, Türkiye

Makale Türü	Özgün Makale
Makale Alt Türü	SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı	Structural Concrete
Dergi ISSN	1464-4177 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler	SCI-Expanded
Dergi Grubu	Q2
Makale Dili	İngilizce
Basım Tarihi	10-2023
Cilt No	24
Sayı	5
Sayfalar	6644 / 6671
DOI Numarası	10.1002/suco.202200839
Makale Linki	http://dx.doi.org/10.1002/suco.202200839

Özet

AbstractAs a striking contribution of metakaolin to geopolymer concretes, the varying contents of metakaolin with quartz powder are included the mixtures with ground granulated blast furnace slag, and quartz sand to observe the mechanical, physical, transport, microstructure, and nuclear protection parameters of the samples, within this study. The geopolymer concrete samples are tested for the mechanical transport and physical properties depending on the curing time, curing temperature, and the raw/by‐product material type. The results show that the samples containing the most metakaolin performed well with a 24‐h compressive strength of 131.78 MPa. Increasing the curing temperature and curing time affected both mechanical, physical and transport properties. In addition, the microstructure of the samples was analyzed by scanning electron microscopy, x‐ray diffraction, and Fourier transform infrared spectroscopy. Moreover, the effect of increasing metakaolin reinforcement on the nuclear protection capacity of the produced geopolymer concretes with experimental gamma transmission and neutron dose measurements was investigated. The M3 sample with high content of both metakaolin and granulated blast‐furnace slag showed the highest resistance to gamma photons in the energy range of 0.081–0.383 MeV. The produced geopolymer samples absorbed almost 40% of the fast neutrons with 4.5 MeV energy. Neutron removal cross sections of the produced geopolymer concretes are in the range of 0.0952–0.0949 cm−1 and are larger than those of B4C, graphite, and boric acid. The findings of this study revealed that the addition of metakaolin improved the mechanical, nuclear shielding and structural properties of geopolymer concretes.

Anahtar Kelimeler

early compressive strength | geopolymer concrete | heating cure | nuclear protection

BM Sürdürülebilir Kalkınma Amaçları

Atıf Sayıları
WoS	15
Google Scholar	18

Metakaolin‐based geopolymer concretes for nuclear protection: On the perspective of physicochemical, durability, and microstructure

Dergi Adı	Structural Concrete
Yayıncı	Wiley-Blackwell
Açık Erişim	Hayır
ISSN	1464-4177
E-ISSN	1751-7648
CiteScore	6,9
SJR	0,924
SNIP	1,313

Metakaolin‐based geopolymer concretes for nuclear protection: On the perspective of physicochemical, durability, and microstructure

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