MANILA, Philippines — Filipino researchers have found an innovative use for Taal’s volcanic ash: protecting against harmful radiation. This unexpected discovery could revolutionize construction materials while providing an eco-friendly solution for radiation shielding.
The research, conducted by experts from Ateneo de Manila University and National University – Mall of Asia Campus, revealed that geopolymer mortar made from Taal volcanic ash (TVA) contains iron-rich minerals that block harmful X-rays and gamma rays. This property makes it a viable material for hospitals, industrial sites, and nuclear facilities.
Radiation shielding plays a critical role in healthcare, industry, and food safety. However, traditional materials such as lead and concrete are costly and hazardous to the environment. Volcanic ash-based materials present a more sustainable and lightweight alternative.
The 2020 eruption of Taal Volcano blanketed Luzon with ash, creating environmental and waste management challenges. Researchers Floyd Rey P. Plando, Myris V. Supnad, and Joel T. Maquiling saw potential in this abundant material. After studying TVA’s chemical and physical properties, they found that its natural iron content enhances its radiation-blocking ability.
“Iron has greater interaction power because it contains more electrons. It is dense due to its heavy and tightly-packed structure,” Plando explained. “Materials like TVA, which are dense and electron-rich, are better at blocking hazardous radiation.”
Maquiling added, “The optimal blend of volcanic ash and aggregates results in effective photon attenuation because of the disorder in granular matter microstructures.”
This breakthrough highlights a sustainable solution for managing disaster waste in the Philippines, a country prone to volcanic activity. The researchers hope to refine the material’s durability and optimize its shielding capabilities through further studies.
This research not only addresses disaster waste but also shows that even destructive natural events can spark meaningful innovation. What do you think about using volcanic ash for radiation shielding? Share your thoughts in the comments below.
