3. STONES
THE STONES WHICH ARE SUITABLE FOR
THE CONSTRUCTION OF THE
STRUCTURES SUCH AS RETAINING
WALLS, ABUTMENT, DAMS, BARRAGES,
ROADS ETC ARE KNOWN AS BUILDING
STONES.
BUILDING STONES SHOULD POSSESS
ENOUGH STRENGTH AND DURABILITY.
STONES HAVE BEEN CONSIDERED AS
ONE OF THE POPULAR BUILDING
MATERIAL FROM THE OLDEN DAYS DUE
TO THEIR AVAILABILITY IN ABUNDANCE
FROM THE NATURAL ROCKS.
5. TYPES OF STONE
MARBLE
GRANITE
SAND STONE
LIME STONE
CHALK
LATERITE
6. PROPERTIES
HARDNESS
HARDNESS DENOTES SEVERAL QUALITIES
OF STONES SUCH AS RESISTANCE TO
CUTTING AND RESISTANCE TO ABRASION (
RUB WITH EACH OTHER ).
SPECIALLY STONES ARE USED IN CASE OF
ROADS AND RAILWAY TRACKS.
TO CHECK THE HARDNESS OF STONES
VARIOUS TESTS ARE CONDUCTED IN THE
LABORATORIES.
THE MORE IMPORTANT TESTS TO CHECK
THE HARDNESS IS LOSS ANGLES ABRASION
TEST.
IT DEPENDS UPON THE NATURE OF ITS
CONSTITUENT MINERALS.
7. • DURABILITY
DURABILITY IS THE POWER OF STONE
TO RESIST ATMOSPHERIC AND OTHER
EXTERNAL EFFECTS.
IT DEPENDS UPON :
CHEMICAL COMPOSITION,
PHYSICAL STRUCTURE,
RESISTANCE TO WEATHERIMG EFFECTD,
PLACE WHERE IT IS USED
STONE WHICH CONTAIN SILICATES WILL
BE DURABLE THAN THOSE STONE
WHICH CONTAIN CALCAREOUS
SUBSTANCES
8. STONE AND ITS MAJOR TYPES
BASED ON FORMATION
BUILDING STONE IS A NATURAL ENGINEERING
MATERIAL.
STONE IS OBTAINED FROM ROCK BY APPLYING
CERTAIN DISINTEGRATION TECHNIQUES LIKE
MANUAL QUARRYING AND BLASTING ETC.
STONES OBTAINED FROM ROCKS ARE
IRREGULAR IN SHAPE AND SIZE AND THUS NEED
PROPER DRESSING BEFORE USING FOR
CONSTRUCTION PURPOSE.
BASED ON FORMATIOM OF THE PARENT ROCK IT
HAS THREE TYPES
1. THE IGNEOUS ROCKS
2. THE SEDIMENTARY ROCKS AND
3. THE METAMORPHIC ROCKS
9. STONE IS USED IN
CONSTRUCTION IN THE
FOLLOWING FORMS :
RUBBLE
DIMENSION STONE
FLAGSTONE
CRUSHED STONE
10. COMMON USES OF BUILDING
STONE :
IT IS USED IN FOUNDATIONS OF BUILDINGS’
IT IS USED IN CONSTRUCTION OF DAMS, BARRAGES,
ETC,
IN ITS CRUSHED (POWDERED FORM) IT IS USED AS
ARTIFICIAL SAND,
IT IS USED AS RAW MATERIAL FOR MANUFACTURING
OF CEMENT,
IN ITS BROKEN FORM IT IS USED AS MATERIAL FOR
CONSTRUCTION OF ROAD AND RAILWAY TRACKS,
IT IS ALSO USED AS PART S OF BUILDING SUCH AS
LINTELS AND ARCHES, ETC.
IT IS ALSO USED AS THIN SLABS FOR BUILDING
ROOFING
IT IS ALSO USED FOR ORANAMENTAL WORKS IN
BUILDINGS,
IN ITS BROKEN FORM IT IS THE MANUFACTURING OF
CONCRETE.