AE-390
CONCRETE FRAME
GROUP 9
Concrete Frame overview
Fast Facts
Types of cement
Type I-ordinary cement
Type II-moderate sulfate resistant
Type III-high early strength
Type IV-Low heat of hydration
Type V-High Sulfate Resistant
admixtures
Different admixtures can be added to a concrete mix to control the set time of the concrete. There are several kinds of admixtures, such as, accelerating admixtures, retarding admixtures, air entraining admixtures, and water-reducing admixtures.
Precast vs. cast-in-place
Precast concrete is made in a factory and transported to the construction site. Cast-in-place concrete is poured and cured in its desired location on site.
aggregates
Aggregates are granular materials such as sand, gravel, or crushed stone that are an essential material in concrete.
Loads
Dead load = volume of member (l*w*h) x unit weight of materials (150 lb/cf)
