This course is a laboratory class focusing on the material properties of infrastructure, especially concrete and soil.
Concrete must meet several requirements; freshness to make casting work easy and reliable as well as physical and chemical properties of hardened concrete to make concrete structure rigid and durable. In this course, students gain an understanding of freshness by learning the design method of mix proportion and to meet the requested performance, and mix the designed concrete by themselves. They also gain an understanding of the physical and chemical properties of hardened concrete through some physical and chemical tests on the hardened concrete.
Soils are composed of soil grain, water, and air. The characteristics (i.e. compressibility, strength, and permeability) depend not only on inherent properties of soils but also on the state of soils. The aim of the soil test part is to obtain knowledge of physical and mechanical properties of soil through conducting various soil tests (compaction tests, permeability tests, various index tests, and oedometer tests).
Concrete and soil are used widely as a construction material of infrastructure. The aim of this course is to cultivate the fundamentals of civil engineering by understanding the properties of concrete and soil through experimental projects.
By the end of this course, students will be able to:
1) Understand the designing method of concrete mix proportion and decide the mix proportion to meet the requested performance.
2) Learn the test of fresh concrete, and explain the properties of fresh concrete.
3) Learn the test of hardened concrete, and explain the physical and chemical properties of hardened concrete.
4) Understand the influence of particle size distribution and water content on soil compaction and its mechanical consequences.
5) Understand the influences of void ratio on permeability of soil and basic mechanisms of soil liquefaction.
6) Understand the important basic properties of clay for estimating shear strength, such as the relationship between consolidation pressure and void ratio, concepts of the normally consolidated and overconsolidated states.
Construction material, Concrete, Geomaterials
|✔ Specialist skills||Intercultural skills||✔ Communication skills||Critical thinking skills||✔ Practical and/or problem-solving skills|
Classes will be held in separate groups. Students should gather at the instructed room, and understanding of the experiment details and related matters are checked in advance of the experiment. Sometimes the understanding of the experiment is checked after the class. In each class, students are required to submit a report.
|Course schedule||Required learning|
|Class 1||Class 1: Mix proportion design, Test on fresh concrete Class 2: Test on hardened concrete Class 3: Proctor tests Class 4: Permeability tests and liquefaction test Class 5: Oedometer tests, Tests for liquid limit and plastic limit of soils||Class 1: Mix proportion design, Principle of each test on fresh concrete, process, and understanding of the results. Class 2: Principle of each test on hardened concrete, process, and understanding of the results. Class 3: Influence of particle size distribution and water content on soil compaction and its mechanical consequences. Class 4: Influences of void ratio on permeability of soil and basic mechanism of soil liquefaction. Class 5: Understanding of consolidation phenomenon and important basic properties of clay for estimation of shear strength.|
Course materials will be handed out in the first class.
Soil testing (2nd edition), 2010, The Japanese geotechnical society, ISBN978-4-88644-084-6. (In Japanese)
Murata, Jiro and Kuniaki, Yasuda. (eds.), New Experiment Guideline of Civil Engineering - Concrete (Fourth edition), Gihodo Shupan, ISBN:: 4-7655-1708-X (Japanese)
Niwa, Junichiro, Basic of concrete structure, Suurikougakusha, ISBN: 978-4901683333 (Japanese)
Otsuki, Nobuaki and Miyasato, Shinichi, Concrete Material, Asakura Shotten, ISBN: 978-4-254-26501-9 (Japanese)
Soil mechanics, 1984, H. Yamaguchi, Gihoudo shuppan Co,. Ltd., ISBN: 978-4765513425. (In Japanese)
Guide for civil engineering experiments (Soil mechanics), 1993, T. Kimura and O, Kusakabe. (eds.), Gihoudo shuppan Co., Ltd., ISBN: 978-4765515184. (In Japanese)
Soil mechanics (Civil engineering series No. 8), 1977, K. Ishihara and T. Kimura, Shokokusha Publishing Co., Ltd., ISBN: 4-395-40008-6. (In Japanese)
Report(100%). Students are requested to attend all classes.
Students must have successfully completed Concrete engineering(CVE.E201), Soil Mechanics I(CVE.C201) and Soil Mechanics II (CVE.C202) or have equivalent knowledge.
Students are divided into some groups at the guidance, and students will tale classes with the group members. The order of the classes for each group is informed at the guidance.