الفهرس 
Chapter (1) IntroductionOnly 14 pages are availabe for public view
 |  | from | 105 |  |  |
| | | from | 105 | | |
Abstract
The management of waste is one of the most complicated issues in contemporary society, because of recent important developments in manufacturing. Recycling waste materials instead of using cement in concrete is a significant step toward reducing carbon-di-oxide (CO2) emissions and solving environmental problems from the accumulation of waste materials. This study examines the possibility of the utilization of waste materials to create eco-friendly, low-carbon, and sustainable high strength concrete (HSC). Waste materials such as ceramic waste powder (CWP), glass powder (GP), and granite waste powder (GWP) have been to partially replace Portland cement (PC) in various proportion ranging from 10% to 50% by weight of cement. 16- concrete mixtures containing industrial waste were designed and implemented. Workability (slump test), mechanical properties (compressive strength, splitting tensile strength), and durability (water penetration depth, Sorptivity, carbonation test) were studied. The effect of elevated temperature resistance of high strength concrete samples at 600 °C exposure was also studied. Additionally, scanning electron microscopes (SEM), X-ray diffraction (XRD), and mercury intrusion porosimetry (MIP) were used to detect the microstructure properties and pore structure of concrete under influence of waste materials. Finally, the ecological assessment of the manufactured HSC was assessed.Experimental results prove that the slump values increase with increasing glass powder (GP) content up to 50%. In contrast, a decrease in HSC workability was seen with the addition of ceramic waste powder (CWP), especially for CWP50%, which had a slump decline of 38.6%. It was observed that the addition of granite waste powder (GWP) did not significantly affect the workability of the resulting HSC concrete. Experimental results demonstrated that the optimal percentage for improving the results of the mechanical properties of HSC is 10% of glass waste powder (GP) and 20% of granite waste powder (GWP). The residual resistance at 600 °C for 10% CWP, 10% GP, and 20% GWP retained approximately 34.10%, 32.32%, and 43.29%, respectively, of their original strength. XRD tests and SEM micrographs showed that the addition of 10% GP and 20% GWP improved the microstructure of the resulting concrete. Finally, environmental assessments revealed that integrating CWP, GP and GWP into the HSC resulted in reduced costs, energy consumption and carbon footprint.