During the summer season, the sun’s heat can make roofs and walls blazing. This causes the temperature inside homes to soar, forcing us to rely on heavy ACs. But now, a very modern solution has been found to this problem. Scientists at Southeast University in China have developed a unique cement that keeps itself cool. This cement does not absorb sunlight and heat, but instead radiates it back into space. With its help, the temperature of a building can be reduced by about 5.4 degrees Celsius, even during the hottest hours of the day.
The cement we typically use in homes traps a large amount of heat. However, this new ‘supercool cement’ has a different structure. Scientists have altered the chemical composition of its tiny particles. It uses “metasurface engineering” technology. This allows the cement to reflect 96.2 percent of sunlight, preventing the surface from heating up.
The cement we typically use in homes traps a significant amount of heat. However, this new “supercool cement” has a different composition. Scientists have altered the chemical composition of its tiny particles. This “metasurface engineering” technology has been used. This allows the cement to reflect 96.2 percent of sunlight, preventing the surface from heating up.
This cement has been proven not only to be cool but also to be number one in terms of strength. Scientists have subjected it to numerous rigorous tests. This cement can easily withstand dangerous liquids like acids, ultraviolet rays, and extreme cold cycles. It has also proven to be much stronger than ordinary cement in terms of pressure, stretching, and wear.
Guo Lu, author of the study, explained that they tested this supercool cement on the roofs of real buildings. Between 1 and 2 p.m., when the outside temperature reached 101.1 degrees Fahrenheit (38.4 degrees Celsius), the temperature of the roof made with this cement was recorded to be 9.72 degrees Fahrenheit lower than the rest. In contrast, conventional cement heats up to 59 degrees Celsius during the same period.
This cement will not only keep homes cool but will also play a major role in protecting the environment. Assessments conducted using machine learning have shown that using this cement can achieve net-negative carbon emissions. This means it will also help reduce air pollution and carbon emissions.
The best part is that the process of making this magical cement is not very expensive. It can be easily manufactured on a large scale in factories. Scientists say it can be easily used in roofs, walls, and exterior coatings. Using this cement in cities will also save significant amounts of electricity, as people will need to run air conditioners less frequently.