The Constructor

MARCH 18, 2012

Concrete is capable of conducting and electric current and acts as the electrolyte with the circuit being completed by the bar through which the electrons can flow. provided by good quality concrete produces a protective layer around the steel preventing the flow of current. However the highly alkaline environment (pH about 12.8)

Concrete 235

Concrete Foundation Materials Design 235

The Constructor

APRIL 2, 2012

The bearing length should be atleast 75mm to avoid spalling of the edges. This tie prevents the beam and the slab separating during the in-situ concrete screeding operation. Finally, in-situ concrete is poured. To prevent this short of failure occurring, the slab must be tied to the beam.

Concrete 223

Concrete Foundation Materials Design 223

The Constructor

NOVEMBER 15, 2011

Bond : This is the method of arranging bricks so that the individual units are tied together. Spalls : these are the chips of stones used for filling the interstices in stone masonry. The course of brick work in which all the bricks are laid as stretchers is known as stretcher course.

Concrete 223

Concrete Foundation Materials Design 223