| dc.description.abstract | In recent years, there has been a growing interest in exploring plant extracts as cost-effective and environmentally friendly corrosion inhibitors, presenting a promising alternative to synthetic counterparts, given their potential to mitigate corrosion without the use of harmful substances or heavy metals. The study aimed to develop an affordable and environmentally friendly corrosion inhibitor for reinforcing steel bars by utilizing pineapple crown extract. The primary objectives included investigating the impact of varying concentrations and immersion durations of the extract on the physical and mechanical properties of reinforced steel bars. Additionally, characterizing the steel bars coated with pineapple crown extract under optimal conditions was conducted both before and after exposure to acid. The study evaluated a weight loss method for assessing corrosion in reinforcing steel bars by immersing a steel bar sample in hydrochloric and sulfuric acid solutions, measuring its mass loss at various concentrations, and using Scanning Electron Microscopy to examine the effects of pineapple crown extract on the steel bar's surface. Furthermore, tests were conducted to determine the tensile and flexural strength of the steel bar immersed in the pineapple crown extract. The study revealed that elevating the amount of environmentally friendly corrosion inhibitor led to a reduction in the corrosion rate. Specifically, the pineapple crown extract corrosion inhibitor (GCI) demonstrated optimal inhibition effectiveness when employed at a concentration of 150 g/L and immersed for 24 hours, displaying superior performance against both hydrochloric acid (HCl) and sulfuric acid (H2SO4). Additionally, the mechanical assessments indicated that bars coated with GCI exhibited higher tensile strength compared to those without the inhibitor, resulting in enhanced endurance in terms of tensile strength, yield point, and elongation for rebars containing GCI. | en_US |
