CMT BPSU

• - A mixture of cement, sand, gravel and water.

• - Sometimes with reinforcement and admixtures.

• CONCRETE

• AGGREGATES

• ASPHALT

• SLAB

An artificial stone as a result of mixing cement, fine aggregates and water.

• Plain Concrete

• Reinforced Concrete

• Aggregate Concrete

• Standard Concrete

A concrete with reinforcement embedded in such a manner that the two materials act together in resisting

forces.

• Plain Concrete

• Reinforced Concrete

• Standard Concrete

• Aggregate Concrete

Is first determined to meet the requirements of strength and durability.

• Water-Cement Ratio

• Aggregate-Cement Ratio

• Sand-Cement Ratio

• Gravel-Cement Ratio

Is then chosen to satisfy the workability requirements.

• Water-Cement Ratio

• Aggregate-Cement Ratio

• Sand-Cement Ratio

• Gravel-Cement Ratio

Made from materials which must contain the proper proportion of lime, silica, alumina and iron

components.

• Portland Cement

• Seattle Cement

• Idaho Cement

• Utah Cement

Found in riverbeds, free of salt and must be washed

• Sand

• Silt

• Clay

• Loam

Smaller than 1⁄4”diameter stone

• Fine Aggregates

• Coarse Aggregates

• Plain Aggregates

• Crushed Aggregates

Bigger than 1⁄4” diameter

• Fine Aggregates

• Coarse Aggregates

• Plain Aggregates

• Crushed Aggregates

Where the Contractor is responsible in selecting the mixture proportion to achieve

the required strength and workability.

• Designed Mixture

• Prescribed Mixture

• Essential Mixture

• Plain Mixture