TY - JOUR ID - 92049 TI - Design and Optimization of Mechanical Properties of Reduced-Graphene Oxide- Loaded Cement JO - Journal of Civil Engineering and Materials Application JA - JCEMA LA - en SN - 2676-332X AU - Taheri, Matin AU - Ramazani, Ali AD - Department of civil Engineering, Islamic Azad University, Electronic branch, Tehran, Iran. AD - Department of civil Engineering, K. N. Toosi University of Technology, Tehran, Iran. Y1 - 2018 PY - 2018 VL - 2 IS - 3 SP - 159 EP - 164 KW - Reduced-graphene oxide KW - cement KW - CCD KW - Compressive strength KW - Flexural Strength DO - 10.22034/jcema.2018.92049 N2 - Graphene oxide (GO) is a graphite-based product. GO prepare a new distance to interact with cement matrix. GO due to the high specific surface area, high intrinsic mobility and high Young’s modulus leads to a remarkable enhancement in mechanical properties of cementitious material matrix. In the present study, the effect of reduced-graphene oxide (r-GO) on the mechanical properties of Portland cement paste was investigated. Response surface methodology based on central composite design (CCD) was used to predict the interaction effects of curing time (7-21 days) and GO amount (0.02-0.1%) on the compressive strength and flexural strength of the r-GO–cement composite. By optimization of parameters, the compressive strength and flexural strength was increased by 48% and 74% compared with cement without r-GO. The obtained results demonstrated that the r-GO is a promising filler of cement-based composites to enhance the mechanical properties of cement. UR - https://www.jcema.com/article_92049.html L1 - https://www.jcema.com/article_92049_4281ddecffbbfcebe8159369b2af705f.pdf ER -