(24) INSTITUTION OF HIGHER EDUCATION-The term institution of higher education' has the meaning given that term in section 101(a) of the Higher Education Act of 1965.
Constituent Materials of Concrete. Concrete is a composite material consisting of a binder, which is typically cement, rough and fine aggregates, which are usually stone and sand, and water. These comprise the constituent materials of concrete.
Matrix materials are usually some type of plastic, and these composites are often called reinforced plastics. There are other types of matrices, such as metal or ceramic, but plastics are by far the most common.There are also many types of plastics, but a discussion of them is beyond the scope of this week's column. common example of a composite is concrete. It consists of a binder (cement) and a reinforcement (gravel). Adding another reinforcement (rebar) transforms concrete into a three-phase composite. The individual materials that make up composites are called constituents.