Authors : Shaikh Muddasir Ahmed , Prof. K. G. Patwari
DOI :10.46335/IJIES.2025.10.6.17
Abstract – New carbon nanotubes have drawn the attention of those studying concrete because of their great strength, electrical conductivity, heat transfer, and chemical behavior. These tiny threads could be useful in making better cement composites. This study looked at how adding nanotubes affects concrete's bending strength, ability to stretch, how easily liquids pass through it, and its inner structure. Concrete mixes were made with different amounts of nanotubes: 0, 0.01, 0.02, and 0.03 percent by weight. A big problem for concrete bridges is tiny cracks that form early on, which makes them wear out faster. Adding fibers to concrete has worked well to make it stronger and reduce these early cracks. Concrete with a lot of cement gets very strong, but this can also cause early cracking. Weak tensile strength also leads to early cracking. Other things that cause these cracks are rising temperatures, how much water is present, and shrinkage. Using materials other than cement to increase compressive and tensile strength in a cost-effective way can help lessen early cracking. Concrete mixes were made with varying amounts of glass fibers: 0, 1%, 2%, and 3% by weight. This paper investigates how adding glass fibers and carbon nanotubes affects how well the concrete withstands pressure.
