GENERAL SPECIFICATIONS FOR STONE:

1. Stone used for construction should be obtained from approved quarry.

2. Stone should be free from cracks, flaws, veins  etc.

3. The stone should not absorb water more than 5% of its weight

4. The stones used should be of such size which can be easily handled and dressed by tbe workmen.

5. The stone should have a minimum compressive strength as specified by the structural designer

6. Typical stones used for construction include, Basalt, Granite, Deccan trap, Sand stone, Lime stone and Laterite

GENERAL SPECIFICATION FOR OIL PAINT

1.    The paint shall be of the specified make such as Asian, Nerolac, Berger etc.

2.    The paint shall be of the approved colour or the colour may be achieved by adding stainer  to white oil paint

3.    The primer used for oil paint shall be as follows

a.    For painting wood and plaster surfaces universal primer shall be used

b.    For painting steel surfaces red oxide or zinc chromate primer shall be used

4.    Painting of wood or plastered surfaces

a.    The surface shall be rubbed smooth witn the help of sand paper and cracks shall be filled with putty. Putty shall be made by mixing whiting powder and linseed oil

b.    Universal primer shall be applied in single coat with the help of a brush

c.    Oil paint of approved make and colour shall be applied with the help of a brush in two coats taking care not to leave any brush marks. The paint can be thinned down by adding thinner or turpentine

5.    Painting of steel surfaces

a.    The surface to be painted shall be rubbed with a emery paper and any scales, rust shall be removed.

b.    The surface shall be given a coat of primer either red oxide for general works and zinc chromate for more important works.

c.    Two coats of oil paint shall than be applied with the help of a brush or by spraying