نوع مقاله : مقاله پژوهشی
نویسندگان
1 تهران - لویزان - دانشگاه شهید رجایی - دانشکده عمران
2 دانشگاه آزاد اسلامی واحد تهران مرکزی
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this paper, the fracture parameters of lightweight geopolymer concrete based on the C - class fly ash (LWFCGC) are presented. The experiments include three-point bending tests on 36 beams with different activator to binder ratios. Compressive and tensile strength tests were also performed on hardened concrete after 24 hours of curing at 80 ° C. In this research, three mix designs with activator to binder ratios of 0.4, 0.5 and 0.6 were considered. The samples showed relatively decent compressive strengths. In each mixture, the fracture parameters were analyzed using size effect method. The results showed that by increasing the activator to binder ratio fracture toughness and fracture energy decreased. Moreover, the ductility, measured by means of the effective length of fracture process zone, increased.The samples showed relatively decent compressive strengths. In each mixture, the fracture parameters were analyzed using size effect method. The results showed that by increasing the activator to binder ratio fracture toughness and fracture energy decreased. Moreover, the ductility, measured by means of the effective length of fracture process zone, increased.
کلیدواژهها [English]
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