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The current investigation focuses into recycling glass waste as a critical ingredient for concrete manufacturing, helping to promote sustainable construction, in response to the global predicament of growing glass waste brought on by rapid urbanization. According to the critical examination, addition of glass flakes to fresh concrete at a rate of 20% to 30% improves its flowability, with the amount of glass flakes added depending on the size of the recycled glass particles. However, over a certain point, huge, gritty particles reduce the workability. Around 25% of cement can be substituted by glass residue to augment compressive strength. Nevertheless, excessive use could degrade this characteristic. As per the analysis of various works surveyed in the present overview, broken glass might take the role of fine aggregate and adding glass to concrete lowers its heat conductivity—especially when adding glass with bigger particle sizes. The key to a successful application is the careful selection of waste glass based on category, particle size, and proportion. Recycled glass improves some concrete qualities and aids in eliminating waste, according to the investigation, thereby rendering it easier to build environmentally friendly structures. The building of two pedestrian bridges serves as an example of the technique's success and paves the way for environmentally friendly construction by addressing waste management and resource optimization. [ABSTRACT FROM AUTHOR]

Electricity is generated by hydropower, a significant renewable energy source, in more than 150 nations throughout the world. Given its ability to meet the rising need for power while lowering carbon dioxide emissions, hydropower's sustainable growth is of the highest significance. With improved monitoring, optimization, and assistance for more effective and sustainable operations, the Internet of Things (IoT) opens up new opportunities for the sustainable growth of hydropower. River levels, turbine efficiency, and cloud cover are just a few of the different aspects of hydropower generating that may be tracked using IoT sensors and devices. The efficiency of the plant may then be increased by optimising output, cutting waste, and reducing downtime using the data that has been collected. This lessens the possibility of power interruptions and enables hydropower plants to adapt more quickly to variations in energy demand. Hydropower plants can have a smaller negative influence on the environment because to IoT technology. Water quality, heat, and other vital characteristics may be monitored using ecological surveillance devices to make sure that hydropower activities do not have a harmful effect on the nearby ecosystems. The system can also assist in reducing the likelihood of dam breakdowns and floods by monitoring fluctuations in water volumes and anticipating possible dangers. Improved control of electricity storage and transportation is another benefit of IoT implementation in the hydropower industry. Energy may be conserved during times of little need and supplied during peak times by using IoT-enabled smart grids, which eliminates the need for peak power plants that burn fossil fuels. This encourages the production of more environmentally friendly electricity and lowers overall carbon emissions. [ABSTRACT FROM AUTHOR]