Concrete/ Steel Flashcards
A layer of coarse granular materials placed and compacted on undisturbed soil or prepared fill to prevent the capillary rise of moisture to a concrete ground slab
Base coarse
Three types of substructures
- Slab on fill
- Crawl space
- Basement
The above ground portion of a building
Superstructure
Is an artificial stone made out from the mixture of cement, sand, gravel and water
Concrete
Class AA Concrete mixture
1:1 1/2:3
Two basic types of foundations
- Shallow foundation
2. Deep foundation
Class A concrete mixture
1:2:4
Batched in a stationary plant then hauled to the site
Ready-mixed concrete
Three major parts of a building
- Superstructure
- Substructure
- Foundation
The habitable below ground portion
Substructure
Class B concrete mixture
1:2 1/2:5
Class c mortar mixture
1:4
Those that transfer the load to the earth at the base of column or wall of the substructure
Shallow foundation
A structural member whose prime function is to carry transverse loads
Beam
It transfers the load at a point far below the substructure
Deep foundation
The materials smaller than 9mm in diameter
Fine aggregate
Class d mortar mixture
1:5
Maximum duration of time for concrete to be discharged from the truck mixer after the water is poured to the batch
1 1/2 hours
That portion of the structural elements that carry or support the superstructure of the building
Foundation
Class A mortar mixture
1:2
The materials over 9mm in size
Coarse aggregate
Class c concrete mixture
1:3:6
Class b mortar mixture
1:3
Two classifications of aggregate
- Fine aggregate
2. Coarse aggregate
Conveying of concrete mixture is done by either: (6)
- Bottom dump
- Buckets
- Wheel borrows
- Pumping through pipelines
- Buggies
- G. I. Pail
Material other than water, aggregates, lime or cement used as an ingredient of concrete or mortar and added to the batch immediately before or during its mixture
Admixture
