Department of Civil Engineering Laboratories

Design and Construction

Research and Development of Strengthening Techniques Using Natural Fiber Materials to Extend the Service Life of Concrete Structures

  • Test setup for the long-term sustainability of the strengthening effect of natural fiber materials

  • Test setup for the long-term durability of natural fiber materials and adhesives

Natural fiber such as basalt fiber made from basalt rock is one example of an eco-friendly material. We are developing techniques to strengthen concrete structures and extend their service life by using such fiber materials.

Associate Professor: Kentaro Iwashita

Research on Heat Transfer Problems in Concrete Structures

  • Motorway prior to its opening (Mei-nikan Expressway)

  • Hydration heat generation simulation

Hydration heat is generated when cement and water react. To prevent deterioration of concrete structures due to heat generation, students are conducting research to predict heat transfer within the concrete and enhance the cooling effect.

Instructor: Yasuaki Ishikawa

Research on Wear-Resistant Materials in Hydraulic Structures Based on Flowing Sand

  • Field durability test of wear-resistant materials at an elevation drop in the riverbed of an actual river

  • Basic iron ball impact test of wear-resistant materials

When mountain streams flood, there is a possibility that the stones and sand contained in the flow may cause damage to concrete structures. Accordingly, we are conducting research to find materials that have extremely high abrasion resistance compared to conventional concrete. We are also carrying out durability experiments in rivers, looking toward eventual commercialization.

Instructor: Muneyuki Arai

Research and Development of High-Performance Reinforced Walls

  • High-performance reinforced wall constructed on site

  • Test for mechanical properties of the improved clayey soil

Since the Great Hanshin Earthquake, reinforced earth-retaining walls, which incorporate metal or resin reinforcements, have spread rapidly. Their high earthquake resistance was demonstrated in the Great East Japan Earthquake. In collaboration with a private company, we conduct R&D on high-performance reinforced soil walls that use a new reinforcing mechanism. Currently, we are also carrying out research on the effective utilization of improved clayey soil for the backfill of reinforced earth-retaining walls.

Instructors: Takeshi Kodaka; Cui Ying

Study on the Mechanism of Ground Settlement During Tunnel Excavation and Measures to Prevent It

  • Numerical analysis for the tunnel excavation process

  • Model experiment for the tunnel excavation process

We carry out model experiments and numerical analysis to clarify the mechanism underlying ground settlement that occurs due to tunnel excavations. We also discuss the effects and mechanisms of methods to prevent ground settlement.

Instructor: Cui Ying

Research on the Strength Properties of Concrete at Early Ages

  • Measuring the splitting tensile strength of concrete (before measurement)

  • After measurement (cracking has occurred in the center)

To ascertain the strength of fresh concrete, we are conducting tests on the compressive strength and splitting tensile strength of concrete one to two days after mixing.

Instructor: Yasuaki Ishikawa

Advanced Research Center for Natural Disaster Risk Reduction (NDRR) Launched

Meijo University's “Research Project for '21st Century-Type' Natural Disaster Risk Reduction” was adopted as a Strategic Research Base Development Program for Private Universities by MEXT Japan (the Japanese Ministry of Education, Culture, Sports, Science and Technology) in 2012, and NDRR was launched.
NDRR promotes advanced research in the prevention and reduction of disasters in order to reduce the risks of "21st century-type" natural disasters faced by modern society, which include floods and landslide damage caused by torrential rain and earthquakes in urban areas.

Advanced Research Center for Natural Disaster Risk Reduction website