<ul><li>&nbsp;Investigate the properties and performance of different types of cement and concrete.</li><li><span style="-webkit-text-size-adjust: 100%;">Conducted comprehensive research and analysis to evaluate the impact of&nbsp;</span><span style="-webkit-text-size-adjust: 100%;">additives and admixtures on concrete strength and durability, resulting in a&nbsp;</span><span style="-webkit-text-size-adjust: 100%;">20% increase in compressive strength and a 15% improvement in resistance to&nbsp;</span><span style="-webkit-text-size-adjust: 100%;">environmental factors.</span></li><li><span style="-webkit-text-size-adjust: 100%;">Study construction methods that improve efficiency and reduce environmental impact.</span></li></ul>