Building stones are naturally occurring rocks of igneous, sedimentary or metamorphic origin which are sufficiently consolidated to enable them to be cut or shaped into blocks or slabs for use as walling, paving or roofing materials in the construction of buildings and other structures. THIS PPT WAS MADE FOR ACADEMIC PURPOSE IN BUILDING CONSTRUCTION SUBJECT

1. BUILDING STONES
LAKSHMI RAVI CHANDU KOLUSU
BUILDING CONSTRUCTION 01
NATIONAL NSTITUTE OF TECHNOLOGY CALICUT

2. Stone
a natural, hard substance formed from
minerals and earth material which are
present in rocks.
Rock
the portion of the earth’s crust having no
definite shape and structure

3. To qualify as a construction material, stone
should have the following qualities:

4. Strength: Most types of
stone have more than
adequate compressive
strength. The shear
strength of stone,
however, is usually
about 1/10 of its
compressive strength

5. Hardness: hardness is
important when stone
is used for flooring,
paving, and stair
treads.

6. Hardness:
Talc, easily scratched with the thumb-nail: 1
Gypsum, scratched by the thumb-nail: 2
Calcite, not scratched by thumb-nail but easily cut by knife: 3
Fluorite, can be cut by knife with greater difficulty than calcite: 4
Apatite, can be cut only with difficulty by knife: 5
Orthoclase, can be cut w/ knife w/ great difficulty on thin edges: 6
Quartz, not scratched by steel, scratches glass: 7
Topaz: 8
Sapphire: 9
Diamond: 10

7. Durability: Resistance
to the weathering
effects of rain, wind,
heat, and frost action
is necessary for
exterior stonework

8. Workability: A stone’s
hardness and grain
texture must allow it to
be quarried, cut and
shaped

9. Density: A stone’s
porosity affects its
ability to withstand
frost action and
staining

10. Density:
Porosity of Stones
24-hours Water Absorption of Stones by Volume

11. Appearance:
Appearance factors
include color, grain,
and texture

12. CLASSIFICATION OF STONES
(according to geological origin):
 Igneous rock
 Metamorphic rocks
 Sedimentary rock

13. Igneous rock is formed by the crystallization of
molten magma, as granite, obsidian and
malachite

14. Igneous rock also known
as primary, unstratified
or eruptive rocks

15. Metamorphic rocks has undergone a change in
structure, texture, or composition due to the
natural agencies, as heat and pressure,
especially when the rock becomes harder
and more crystalline, as marble and slate

16. Metamorphic rocks:
Examples of Transformation of Rocks

17. Sedimentary rock is formed by the deposition
of sediment by glacial action, as limestone,
sandstone and shale

18. Sedimentary rocks are also known as aqueous
or stratified rocks

19. As a load bearing wall material, stone is similar
to modular unit masonry. Although stone
masonry is not necessarily uniform in size,
its laid up with mortar and used in
compression. Almost all stone is adversely
affected by sudden changes in temperature
and should not be used where a high degree
of fire resistance is required.

20. Stone is used in construction in the following
forms:
 Rubble
 Dimension stone
 Flagstone
 Crushed stone

21. Rubble - consists of rough fragments of broken
stone that have at least one good face for
exposure in a wall.

22. Dimension stone - is quarried and squared stone
2’ or more in length and width and of specified
thickness, used commonly for wall panels,
cornices, copings, lintels and flooring.

23. Flagstone - refers to flat stone slabs used for
flooring and horizontal surfacing.

24. Crushed stone - is used as aggregate in concrete
products.

25. TYPES OF BUILDING STONES
Argillite – formed from
clay, dark blue with faint
shades of green.
Used for:
floor tile
stair threads
coping stones
interior wall base
interior window
stools of exterior
window sills.

26. TYPES OF BUILDING STONES
Granite – igneous origin,
hard, strong, durable and
capable of taking high
pressure polish. Red, pink,
yellow, green, blue, white
and brown.
Used for:
flooring
wall paneling
column
mullion facing
stair threads
flagstone

27. TYPES OF BUILDING STONES
Limestone – sedimentary
rock like dolomite, no
cleavage lines, low in
absorption, smooth, uniform
in structure & composition.
High compressive & tensile
strength
Used for:
wall & floor surfaces

28. TYPES OF BUILDING STONES
Travertine – sedimentary rock,
pleasing texture with small
natural pockets on a cut
surface.
Used for:
interior decorative stone

29. TYPES OF BUILDING STONES
Marble – metamorphic rock, a
re crystallized limestone
forming into carrara, parian,
onyx and vermont.
Used for:
flooring
wall & column facing

30. TYPES OF BUILDING STONES
Serpentine – igneous with
mineral serpentine.
Typically olive green to
greenish black but
impurities may color the
rock.
Used only for interiors due to
weathering

31. TYPES OF BUILDING STONES
Sandstone – class of
rock of cemented silica
grains with texture
ranging from very fine
to very coarse. Colors
vary from buff, red and
light brown. Porous
where as 30% of
volume composed of
pores

32. TYPES OF BUILDING STONES
Slate Rock –
metamorphosis of clays
and shale's deposited in
layers. May be separated
into thin, tough sheets
called slates . Colors are
black, green red, grey, or
purple.
Used for:
flooring
window sills
stools
stair treads & facing

33. STONE CONSTRUCTION
Largely used as facing for building material with steel and
concrete frames.
Application Categories :
1. Paneling
2. Ashlars
3. Rubblework
4. Trim

34.  Running Bond - a
masonry bond formed
when all units are laid in
stretcher position, with
a half-unit overlap
Paneling – thin slabs of stone cut to dimension
and thickness to cover back up walls and
provide finished exterior

35.  Stack Bond - a masonry
bond formed when there
is no overlapping of all
units and all horizontal
& vertical joints are
aligned
Paneling – thin slabs of stone cut to dimension
and thickness to cover back up walls and
provide finished exterior

36. Ashlars – work requires the use of cut stone
that includes broken ashlars, regularly /
irregularly coursed.
 Coursed Ashlar - Ashlar
masonry laid out in
courses of equal height;
blocks of various sizes
may be combined to
make up the height of
the course

37. Ashlars – work requires the use of cut stone
that includes broken ashlars, regularly /
irregularly coursed.
 Random Ashlar - Ashlar
masonry laid without
regular courses but with
an overall effect of
horizontal orientation

38. Rubblework – random & no attempt to
produced an orderly course either
horizontal or vertical.. Small spaces are
filled with smaller stones.
 Coursed Rubble - Fieldstone
or roughly dressed stone,
with or without mortar,
assembled to give a effect of
courses

39. Rubblework – random & no attempt to
produced an orderly course either
horizontal or vertical.. Small spaces are
filled with smaller stones.
 Fieldstone - Stone found on the
ground (i.e., not quarried) that is
a suitable size and shape for use
as drywall or rubble masonry

40. jambs
sills
copings
cornices
lintels
steps
arch stone (voussoirs)
Trim – stones cut for specific purposes like:

41. Stone Finish

42.  Rusticated - A term describing stone masonry
with a recessed cut margin, so a channel is
formed when the blocks are aligned

43.  Sand Finish - A stone finish that is granular and
moderately smooth, varying with the
characteristics of the specific stone

44.  Sawn Face - A term describing stone exhibiting
the marks left by the saw used to cut it

45.  Rock Face - A stone finish with emphasized
face-plane shifts and rough corners,
exaggerating the natural look of the stone

46.  Split Face - A stone finish exhibiting the natural
quarry texture resulting from splitting the stone

47. Stone Pavers

48.  Cobble stone - A stone used in paving. It may
be rectangular, or naturally rounded

49.  Durex Blocks - Roughly cubed, usually granite
blocks used for paving