BUILDING CONSTRUCTION & MATERIALS : Stone Part-C

Characteristics & Qualities of stones

For the selection of stone of particular work, one must be familiar and aware of its composition, uses , characteristics, and place of availability.

Granite

1. Igneous rock

2. Composed of quart, felspar and minerals & mica

3. Available in grey, green, brown and pink and red

4. Durable &n Hard

5. To weathering, High resistance 

6. The texture varies with its quality

7. compressive strength 700 to 1300 kg/cm2 & Specify gravity 2.7

8. Used for road metal, ornamental, railway ballast, aggregate for concrete; for construction of  piers , bridges, and marine works etc.

Balast

1. Igneous rock

2. It is hard and heavy & compact

3.Available in, yellow, red, grey, greenish black & blue color

4. Compressive strength varies 1530 to 1890kg/cm2 & Specific gravity is 3

5. Used for ornamental, aggregates for concrete, rail road ballast, etc.

Sand Stone:

1. Sedimentary rock

2. Availability in various variety like formations fine grained, coarse grained compact or porous

3. Available in white, , black, green, blue, red and yellow color

4. Specific gravity  2.65 to 2.95 & Compressive strength is 650kgs / cm2

5. Used for ashlar works

Lime Stone:

1. Sedimentary rock: Available in a variety of forms which differ from one another in color, compaction, hardness and durable & texture,

a. Compact lime stone

b. Granular lime stone

c. Magnesia lime stone

d. Kanker lime stone

f. Usage  paving, road metal, etc.

Marble

1. Metamorphic rock

2. Availability is in white, yellow black and red, blue, green color

3. High compactness,

4. Best for wall lining columns , decorative works, pile, table slabs, steps of stair case , hearths, tiled floors, etc.

Slate:

1. Metamorphic rock

1. Compact fine grained, non-absorbent, and produce metallic ringing sound when struck

2. Available in dark blue, black, grey, reddish brown color etc.

3. Usage  providing damp proof course, paving dados etc.

REFERENCE BOOKS:-  

1. BUILDING MATERIAL   - RANGAWALA

2. BUILDING MATERIAL    - SUSHIL KUMAR

3. BUILDING MATERIALS & CONSTRUCTION  - B.P.BINDRA

4. BUILDING CONSTRUCTION   - B.C.RANGWALA

5. BUILDING MATERIALS - A.KAMALA

6. BUILDING CONSTRUCTION & MATERIALS -MR. SHRIKANT D. BOBADE