TY - JOUR ID - 5053 TI - Evaluation of the compressive strength and permeability of graphene oxide-reinforced concrete by using the results of the cylindrical chamber method JO - Amirkabir Journal of Civil Engineering JA - CEEJ LA - en SN - 2588-297X AU - safarkhani, mahna AU - Naderi, Mahmood AD - Imam Khomeini International University AD - Department of civil engineering, Faculty of engineering, International Imam Khomeini university, Qazvin, Iran Y1 - 2023 PY - 2023 VL - 55 IS - 2 SP - 471 EP - 490 KW - Graphene oxide (GO) KW - Anisotropy KW - Compressive Strength KW - Durability KW - Unsaturated water transport DO - 10.22060/ceej.2023.18722.6941 N2 - Water permeability in cement materials is influenced by internal factors, including the type of porous network of cement materials, and external factors, including applied pressure. In this study, the effect of graphene oxide on the compressive strength and anisotropy of the concrete samples and also the effect of applying hydrostatic pressure on the permeability of concrete reinforced with graphene oxide (GO) have been investigated. One of the important reasons for not using graphene in cement composites is its hydrophobicity, which causes the inappropriate distribution of graphene in the structure. The hydrophobic properties of graphene can be converted into hydrophilic properties through the process of chemical functionalization or physical coating. The results of the compressive strength of concrete indicate that the use of these particles in the concrete mixture can increase the compressive strength and reduce the anisotropy in the strength compared to the control sample. This issue can be considered due to the random orientation of graphene oxide sheets in the volume of concrete. The results also show that the addition of a small amount of graphene oxide can reduce the permeability of concrete. In fact, by adding these nanoparticles, it is possible to improve the characteristics of water transfer in concrete and subsequently the durability of it. UR - https://ceej.aut.ac.ir/article_5053.html L1 - https://ceej.aut.ac.ir/article_5053_b7966079e82e615dcd0e897b976c3199.pdf ER -