Concrete/ Foundation/ Column and Metal reinforcements Flashcards
it is an artificial stone made out from the mixture of cement, sand, gravel and water
concrete
concrete in which reinforcement is embedded in such a manner that the two materials act together in resisting forces
reinforced concrete
it is an inert granular material such as sand, round or crushed gravel, etc.
aggregate
the materials smaller than 9 mm in diameter
fine aggregate
the materials over 9 mm in diameter
course aggregate
Class AA concrete mixture
1: 1 1/2: 3
Class A concrete mixture
1: 2: 4
Class B concrete mixture
1: 2 1/2: 5
Class C concrete mixture
1: 3: 6
it is hardening of concrete which requires time, favorable temperature, and continuous presence of water or moisture in concrete after pouring
curing
an excavating machine for cutting trenches; a boom-mounted bucket moves toward the machine, cutting the ground like hoe, then the machines turn away from the cut to permit the operator to dump the spoil
backhoe
a container of known volume used to measure and mixed the constituents of a batch of concrete, plaster or mortar, to ensure proper proportions
batch box
soil which is replaced in an area that has been excavated previously
backfill
it contains a considerable amount of water and cement
grout
mixture of water, cement and fine aggregates such as sand
mortar
class A mortar mixture
1: 2
class b mortar mixture
1: 3
class C mortar mixture
1: 4
class D mortar mixture
1: 5
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
that portion of the structural elements that carry or support the upper structure of the building
foundation
refers to the soil or rock directly beneath the footing
foundation bed
that portion of the foundation which transmits loads directly to the soil
footing
two classifications of footing
- wall footing
2. column footing
