CE 446 Properties Of Fresh And Hardened Concrete
Credit Structure: (3-0)3
Catalog Description:
Properties of fresh concrete: Workability, consistency, bleeding,
stiffening, setting, air-entrainment, unit weight, uniformity,
batching, mixing, conveying, placing, compaction and curing. Properties
of hardened concrete: Nature and significance of concrete strength,
kinds of strength, compressive strength, tensile strength, fatique
strength; durability, shrinkage and volume changes.
Course Objectives:
Concrete is the most widely used construction material in
the world. lt literally forms the basis of modern society. There
is scarcely any aspect of daily life which does not depend directly
or indirectly on concrete. Therefore, the properties of this material
need to be known very well. The CE students of METU meet with
concrete to a certain extent in their second year course, CE 244
- Materials of Construction, which includes many other construction
materials such as metals, woods, clay products, building stones,
lime, gypsum, etc. Due to the time limitation, a through information
on the properties of fresh and hardened concrete can not be taught
in CE 244. During their brief study of concrete, the students
usually do not fully realize the importance of this materials
and they graduate without any further knowledge on the characteristics
of this material. Therefore, this course on "Properties of
Concrete" is planned to furnish the fourth year students
the necessary information on fresh and hardened concrete. Those
students who will have to take such a course will not only learn
the properties of concrete but also properly evaluate the importance
of concrete from the technical and economic viewpoints. Furthermore,
these students will have an opportunity of judging whether or
not they want to continue their graduate studies in the field
of construction materials.
Prerequisites:
None
Textbook(s):
None
Reference(s):
A.M. Neville, “Properties of Concrete”, Pitman Publishing
Co., 1981.
G.E. Troxell, H.E. Davis and F.W. Kelly, “Composition and
Properties of Concrete”, McGraw-Hill Book Company, 1982.
A.M. Neville, “Hardened Concrete: Physical and Mechanical
Aspects”, American Concrete Institute, 1983.
Syllabus:
1. Properties of Fresh Concrete: workability and consistency.
2. Properties of Fresh Concrete: bleeding, stiffening, setting.
3. Air-entrainment, uniformity and unit weight.
4. Batching, mixing and conveying of fresh concrete.
5. Placing and compaction of concrete; curing.
6. Nature of Strength; significance of strength; kinds of strength.
7. Factors influencing strength of concrete: water-cement ratio,
gel-space ratio, strength gain with time.
8. Compressive strength: end effect, size effect, rate of load
application.
9. Tensile strength: direct-tension, flexural and split tests.
10. Strength of concrete in structures.
11. Fatigue strength; impact strength.
12. Stress-strain relation; modulus of elasticity.
13. Durability.
14.Shrinkage and other volume changes.
Homeworks, Quizzes, Projects:
None
Computer Usage:
None
Laboratory Work:
None
Category Content:
Mathematics and Basic Sciences: None
Engineering Design: None
Engineering Sciences: 2.5 credits
Humanities & Social Sciences: None
Departmental: 0.5 credits
Instructors:
Turhan Erdogan