Graphene Oxide-Reinforced Cementitious Concrete Composites That Incorporates Silica Fume And Fly Ash

Authors : İsmail Raci BAYER

Pages : 526-534

Doi:10.29137/umagd.1258578

View : 92 | Download : 86

Publication Date : 2023-07-14

Article Type : Research Paper

Abstract :In recent years, nano-sized graphene oxide insert ignore into journalissuearticles values(GO); has come to the fore as a promising material for enhancing the mechanical and durability performance of cementitious composites. On the other hand, partial substitution of industrial wastes and by-products into cementitious composites attracts the attention of researchers in order to ensure long-term sustainability. In order to combine these two aspects, the main focus of this study is to examine the effect of 0.05% and 0.1% GO-reinforcement on the slump, 7 and 28-day compressive and flexural strength and 28-day rapid chloride permeability test insert ignore into journalissuearticles values(RCPT); properties of cementitious composites. In this context, mixtures with three different binder combinations, a control, a silica fume insert ignore into journalissuearticles values(SF); substitution, and a fly ash insert ignore into journalissuearticles values(FA); substitution, were designed. The results showed that GO-reinforcement reduced the slump values of the mixtures between 5-15 mm, while the 28-day compressive strengths increased in the range of 9.82%-13.61% with 0.05% GO-reinforcement, and in the range of 17.02%-20.68% with 0.1% GO-reinforcement. The 28-day flexural strength of the mixtures increased by about 10% on average as a result of 0.1% GO-reinforcement. According to the RCPT anaylses, it was observed that the chloride permeability of the mixtures decreased up to 18.85% with 0.1% GO-reinforcement.
Keywords : Grafen oksit, nanomalzeme, çimento, mekanik özellikler, RCPT