In the present study, Nano Silica (n-SiO₂) as cementitious nanomaterial and Nano Zinc Oxide (n-ZnO) as non- cementitious nanomaterial in powder form are doped in the concrete mix to replace the cement by 0.5%, 0.75% and 1.0%. The specimens were casted with a constant Water Cement (W/C) ratio of 0.45 with an M25 mix design. From the experimental results, n-SiO₂ additives with 0.75% replacement and n-ZnO with 0.5% replacement increase the compressive strength by 16.54% and 6.32% and split tensile strength by 19% and 3.86% respectively as compared to the normal concrete. Hydration of Tricalcium Silicate (C₃S) is a significant part of Bogue’s compound. Therefore, in the hydration process reactions of nanomaterials with C₃S were investigated in this study. Additional cement gel formation due to n-SiO₂ helps to increase compressive strength as well as durability of concrete. The formation of the Zn(OH)₂ layer in the hydration process resists the water in cement. Due to doped nanoparticles, the size acid resistance properties of concrete are increased up to some extent but loses the concrete strength. With the help of optimized composition, the exact constituent of concrete can be easily identified for cementitious and non-cementitious nanomaterial. After that Ultrasonic Pulse Velocity (UPV) test was carried out for tap water and acidic media. The n-SiO₂ additives, concrete shows an excellent quality as compared to n-ZnO additives. As per UPV test results, n-SiO₂ additives are more suitable to use in the concrete. The outcome of this study will be helpful to the construction industry in understanding the effect of nano-composite in concrete.

在本研究中，将纳米二氧化硅（n-SiO ₂）作为胶凝纳米材料和纳米氧化锌（n-ZnO）作为非胶凝纳米材料以粉末形式掺入混凝土混合物中，以替代水泥 0.5%、0.75% 和1.0%。使用 M25 混合设计，以 0.45 的恒定水灰比 (W/C) 浇注试样。实验结果表明，与普通混凝土相比，n-SiO ₂添加剂添加0.75% 和n-ZnO 添加0.5% 后，抗压强度分别提高了16.54% 和6.32%，劈裂抗拉强度分别提高了19% 和3.86%。硅酸三钙 (C ₃ S) 的水合是 Bogue 化合物的重要组成部分。因此，在纳米材料与 C ₃本研究对 S 进行了调查。由于 n-SiO ₂形成的额外水泥凝胶有助于提高混凝土的抗压强度和耐久性。在水化过程中形成的 Zn(OH) ₂层抵抗了水泥中的水分。由于纳米粒子的掺杂，混凝土的耐酸性能在一定程度上有所提高，但混凝土强度有所下降。借助优化的成分，可以轻松识别水泥和非水泥纳米材料的混凝土的确切成分。之后，对自来水和酸性介质进行了超声波脉冲速度 (UPV) 测试。与 n-ZnO 添加剂相比，n-SiO ₂添加剂混凝土表现出优异的品质。根据 UPV 测试结果，n-SiO ₂外加剂更适合在混凝土中使用。这项研究的结果将有助于建筑业了解纳米复合材料在混凝土中的作用。