Wazzup Pilipinas!?
In a groundbreaking development, researchers from Ateneo de Manila University and National University–Mall of Asia Campus have discovered that volcanic ash from Taal Volcano can serve as an effective material for radiation shielding. This finding offers a sustainable solution to both waste management and radiation protection challenges.
Radiation shielding is crucial in various sectors, including healthcare, industrial applications, and nuclear facilities. Ionizing radiation, while beneficial for medical treatments, structural inspections, and food sterilization, poses health risks with prolonged exposure. Traditional shielding materials like lead and concrete are often costly and environmentally hazardous. The research team, comprising Floyd Rey P. Plando, Myris V. Supnad, and Joel T. Maquiling, explored the potential of Taal volcanic ash (TVA) as an alternative. Their studies revealed that TVA contains high concentrations of iron-rich minerals, enhancing its ability to block harmful X-rays and gamma rays.
Plando explained, "Iron has greater interaction power because it contains more electrons. In addition, it is a dense metal due to its heavy and tightly packed structure. High-electron and denser material such as TVA has stronger efficiency in blocking hazardous X-rays and gamma rays."
The team also discovered that the optimal combination of volcanic ash and aggregates improves radiation attenuation due to the disorder in granular matter microstructures. This makes TVA-based materials highly effective in shielding against harmful radiation.
The 2020 eruption of Taal Volcano resulted in vast amounts of ash covering large areas of Luzon, presenting disposal challenges. Instead of viewing this pyroclastic material as waste, the researchers investigated its potential in construction applications. Their findings suggest that TVA-based geopolymer mortar not only offers effective radiation shielding but also provides a practical method for managing disaster waste.
Given the Philippines' abundance of volcanic materials, this discovery presents an opportunity to repurpose disaster waste while improving radiation safety in critical industries.
While further studies are needed to refine the material's durability and optimize its shielding performance, this breakthrough demonstrates that even byproducts of cataclysmic natural events can lead to meaningful and life-saving innovations.
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