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Building Materials Lab
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A lab that explores the durability and quality control of building materials.

AboutAbout the lab
Protecting buildings and people through skillful use of materials
The Building Materials Lab studies the performance and durability of materials used in construction, especially concrete, as well as quality control at construction sites.
Because making buildings last longer is also important for a sustainable society, the lab investigates the durability of materials under the environmental actions that cause buildings to deteriorate.
The lab also works on the effective use of by-products from other industries, and on quality control at construction sites as global warming advances.
Key terms
- Environmental actions that cause deterioration
- The actions that damage materials as buildings are exposed to the natural environment. The lab studies their relationship to the durability of materials.
- Exposure test
- An experiment in which test specimens are placed in an actual outdoor environment and their deterioration is observed over a long period.
- By-product
- A material produced in the course of production in one industry. This lab studies its effective use in concrete.
ResearchResearch themes
Buildings are made of materials, and skillful use of materials underpins the beauty of buildings and keeps people safe and comfortable. The lab studies the effective use of by-products, durability in deteriorating environments, quality control in hot seasons, and occupational safety at construction sites.
*Illustrative imageCircular Production Using By-Products
The lab studies ways to make effective use of by-products from other industries in concrete. Using coal ash as an example, it has developed methods of mixing it in without lowering strength or durability.
*Illustrative imageDurability Design of Buildings in Deteriorating Environments
The lab studies the durability of materials under the environmental actions that cause buildings to deteriorate in natural environments. It has conducted long-term exposure tests in a variety of places, including nuclear power plant sites, volcanic areas, cold regions of Kyushu, remote islands, and urban areas.
*Illustrative imageQuality Control for Construction in Hot Environments
As global warming advances, the lab studies at the site level how to control quality at construction sites that are harsh on both materials and workers. It continues research on limiting quality loss in concrete work during the hot season in Asia, including Kyushu.
*Illustrative imageOccupational Safety at Construction Sites
To prevent occupational accidents in building construction, the lab studies a method of evaluating the occurrence of accidents quantitatively, and a safety management system that follows the construction process. It has also worked on occupational accidents caused by heatstroke.
MembersFaculty
- Associate ProfessorTomoyuki Koyama
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Beton Val Mulin AG Concrete plant, Switzerland (Ank Kumar, Infosys Limited) 01” Ank Kumar / CC BY-SA 4.0 (cropped)
- Circular Production Using By-Products: “Fly Ash FHWA dot gov” United States Department of Transportation - Federal Highway Administration / Public domain (cropped)
- Durability Design of Buildings in Deteriorating Environments: “Cracked concrete - Preview (Dimitrios Savva via Poly Haven” Dimitrios Savva / CC0 (cropped)
- Quality Control for Construction in Hot Environments: “Construction site with concrete pump truck” Steve Pivnick, U.S. Air Force / Public domain (cropped)
- Occupational Safety at Construction Sites: “Residential construction fall prevention ( )” National Institute for Occupational Safety and Health (NIOSH) from USA / Public domain (cropped)
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- Related lab (建築生産学研究室): “Old brick building in Jasenovac” Mnalis / CC BY-SA 4.0 (cropped)
- Related lab (建築意匠学研究室): “Scale model of Park Royal 2” Meow2021 / CC BY-SA 4.0 (cropped)
- Related lab (都市・建築史研究室): “Kumamoto Castle 02n3200” 663highland / CC BY 2.5 (cropped)
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