2018 - 2021 Theory for improving the strength of concrete using a large amount of by-product powder that does not have hydraulic lime
2015 - 2019 Study on Deterioration of Concrete under Weak Sulfuric Acid Environment
2010 - 2012 Study on quality and durability of concrete in hot weather ambience
2008 - 2010 Structural Properties and Durability of Concrete Containing Large Quantity of By-products Powders
2005 - 2006 Application of Concrete Containing Large Quantity of Inorganic By product Powders
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Papers (33):
SANGCHUL SHIN, TOMOYUKI KOYAMA, KOREKIYO ITO, HAYAKAWA, J.M. KIM. A Study on the Quality Improvement of Concrete by the Self-curing Effect of Artificial Lightweight Aggregate in Hot Weather Condition. The 9th International Conference of Asian Concrete Federation (ACF 2020/2021). 2021
ANNO Toshinari, KOYAMA Tomoyuki, HAMA Yukio, YUASA Noboru, ITO Korekiyo. RISK ASSESSMENT OF FROST DAMAGE USING CLIMATE MESH IN KYUSHU. AIJ Journal of Technology and Design. 2020. 26. 62. 19-24
Sangchul SHIN, Tomoyuki KOYAMA, Korekiyo ITO. A STUDY ON THE MOCK-UP TEST FOR QUALITY CONTROL OF FLOOR SLAB CONCRETE ACCORDING TO CURING METHOD UNDER HOT WEATHER. The 7th International Conference of Asian Concrete Federation(ACF 2016). 2016