Heikal, M., Nassar, M., Abd El-ALeem, S., El-Sharkawy, A., Desoki, E., M.Ibrahim, S. (2022). Performance of composite cement containing Nano -ZnO subjected to elevated temperature. Benha Journal of Applied Sciences, 7(12), 115-130. doi: 10.21608/bjas.2022.317154
Mohamed Heikal; M.Y. Nassar; S. Abd El-ALeem; A.M. El-Sharkawy; El-Hassan Desoki; Sahar M.Ibrahim. "Performance of composite cement containing Nano -ZnO subjected to elevated temperature". Benha Journal of Applied Sciences, 7, 12, 2022, 115-130. doi: 10.21608/bjas.2022.317154
Heikal, M., Nassar, M., Abd El-ALeem, S., El-Sharkawy, A., Desoki, E., M.Ibrahim, S. (2022). 'Performance of composite cement containing Nano -ZnO subjected to elevated temperature', Benha Journal of Applied Sciences, 7(12), pp. 115-130. doi: 10.21608/bjas.2022.317154
Heikal, M., Nassar, M., Abd El-ALeem, S., El-Sharkawy, A., Desoki, E., M.Ibrahim, S. Performance of composite cement containing Nano -ZnO subjected to elevated temperature. Benha Journal of Applied Sciences, 2022; 7(12): 115-130. doi: 10.21608/bjas.2022.317154
Performance of composite cement containing Nano -ZnO subjected to elevated temperature
1Chemistry, Dept., Faculty of Science, Benha Univ., Benha, Egypt
2Chemistry, Dept., Faculty of Science, Fayoum Univ., Fayoum, Egypt
Abstract
The purpose of this article is studying the effect of physico-mechanical and fire-resistance of cement composite that contain ZnO-nanoparticles NZnO. ZnO-nanoparticles are prepared by combustion method. The composite cements are prepared with different amounts of NZnO 0.0, 0.1, 0.2, 0.4, 0.6 mass %. From one day to 90 days, the hydration kinetics’ behavior was studied. After the specimens were subjected to thermal treatment at 200, 400, 600, 800 and 1000 oC, with a rate of heat 5oC per minute for two hours, the composite cement pastes’ thermal resistance was investigated. With a NZnO content of up to 0.6 mass percent, the compressive strength of OPC–NZnO cement pastes increased. The compressive strength of the thermally treated mixes with 0.6 % N-ZnO (NZTU4) is higher than that of the other mixes up to 1000 oC. It can be concluded that OPC–N ZnO pastes that contain 0.6 mass% NZnO have an optimal mix composition that has a better firing resistance than those of other pastes.