This document is the presentation slides for a group project on brick masonry, paint, and plastering. It includes an introduction slide with the group members' names. It then covers topics such as the definitions of masonry, brick masonry, types of bricks, bonding patterns, plastering materials and types, paint constituents, and defects and their remedies. Diagrams are provided to illustrate brickwork terminology, masonry joints, bond patterns, and plastering tools.
Plaster is a building material used for the protective or decorative coating of walls and ceilings and for moulding and casting decorative elements. In English "plaster" usually means a material used for the interiors of buildings, while "render" commonly refers to external applications. Another imprecise term used for the material is stucco, which is also often used for plasterwork that is ...
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Joints are easy to maintain and are less detrimental than uncontrolled or uneven cracks. Concrete expands & shrinks with variations in moisture and temp. The overall affinity is to shrink and this can cause cracking at an early age. Uneven cracks are unpleasant and difficult to maintain but usually do not affect the integrity of concrete.
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Plastering Defination of plastering : The word “plaster” comes from the Greek language meaning “to daub on”. This is the process of covering rough surfaces with a plastic material to obtain an even, smooth, regular, clean & durable surfaces. On the other hand we say that; A mixture of lime or gypsum, sand and water,...
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Brickwork & Plastering are two important aspect of construction process. What are the methods to be followed during brick work & plastering & what are the important materials.
These slides are describes regarding different types of stone masonry used in construction of walls, plinth, compound wall etc. and also the terms used in the stone masonry.
Plaster is a building material used for the protective or decorative coating of walls and ceilings and for moulding and casting decorative elements. In English "plaster" usually means a material used for the interiors of buildings, while "render" commonly refers to external applications. Another imprecise term used for the material is stucco, which is also often used for plasterwork that is ...
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interior plastering techniques
plastering walls
how to do plastering
pool plastering companies near me
plastering walls techniques
plastering drywall
plastering ceilings
types of plaster wall construction
types of plastering techniques
types of plaster ceiling finishes
methods of plastering
different kinds of plaster
interior plastering techniques
plaster types and uses
different types of plaster walls
types of plastering techniques
types of interior plaster
plaster types and uses
different kinds of plaster
types of plaster ceiling finishes
different plaster wall finishes
how are plaster walls constructed
cement plaster finish types
different types of plaster finishes
types of interior plaster
types of plastering techniques
plaster types and uses
types of plaster ceiling finishes
types of plaster ceilings
types of plaster of paris
plaster supply stores
Joints are easy to maintain and are less detrimental than uncontrolled or uneven cracks. Concrete expands & shrinks with variations in moisture and temp. The overall affinity is to shrink and this can cause cracking at an early age. Uneven cracks are unpleasant and difficult to maintain but usually do not affect the integrity of concrete.
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construction joint vs expansion joint construction joint vs control joint sidewalk control joint spacing concrete wall control joints expansion joint concrete construction joint concrete concrete joints control joint
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Plastering Defination of plastering : The word “plaster” comes from the Greek language meaning “to daub on”. This is the process of covering rough surfaces with a plastic material to obtain an even, smooth, regular, clean & durable surfaces. On the other hand we say that; A mixture of lime or gypsum, sand and water,...
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Brickwork & Plastering are two important aspect of construction process. What are the methods to be followed during brick work & plastering & what are the important materials.
These slides are describes regarding different types of stone masonry used in construction of walls, plinth, compound wall etc. and also the terms used in the stone masonry.
BRICK MASONRY INRODUCTION
BRICK MASONRY-UNIQUENESS
CHARACTERISTIC OF BRICKS
ADVANTAGE OF BRICK MASONRY
MANUFACTURE OF BRICKS
TYPES OF BRICKS USED IN MASONARY WORK
TYPES OF BRICK MASONRY BOND
ENGLISH BOND
FLEMISH BOND
HEADER BOND
STRETCHER BOND
TYPES OF BRICKS MASONARY
TOOLS USED IN BRICK MASONRY
BRICKS COURSES & CLOSURES
RULES FOR GOOD BRICKS BONDING
QUALITIES OF GOOD BRICKS
CLASSIFICATION OF BRICKS
TEST FOR BRICKS
DEFECTS IN BRICK MASONRY
CONCLUSION
A brick is a block or a single unit of a ceramic material used in masonry construction. Typically bricks are stacked together or laid as brickwork using various kinds of mortar to hold the bricks together and make a permanent structure.
Bricks are typically produced in common or standard sizes in bulk quantities. They have been regarded as one of the longest lasting and strongest building materials used throughout history.
What is pointing?
Scope of pointing
Method of pointing
What is plastering?
Objective of plastering
Lime plaster
Cement plaster
Gypsum plaster (plaster of Paris)
Water proof plaster of Mortar
Heat resistant plasters
Defects in plastering
1.Stretcher bond
2.Header bond
3.English bond and
4.Flemish bond.
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This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
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What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
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The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
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4. Presented by
Group – 5
Group Members :
Abontee Barua
Sanchari Halder
Mahfijur Rahman
Tusher Kanti Munshi
Asif Hasan
Yeasin Ali Talukder
Md. Ashraful Alam
Sarwar Murshed
5. What’s Masonry?
The construction of stone or brick which in hardened by heat is termed
as masonry. It’s also defined as construction of building units bonded
together with mortar.
Types: Masonry is basically a wall material. Masonry walls can be divided
into three categories, as follows:
Load bearing walls.
Non-load bearing walls
Retaining walls.
Now from the point of view of using in construction, masonry can be divided
into 4 categories, as follows:
1)Stone masonry
2)Brick masonry
3)Reinforced masonry &
4)Composite masonry
6. BRICK MASONRY
BRICK MASONRY
What is Brick Masonry::
What is Brick Masonry
Construction of brick units bonded together with mortar is termed as brick
Construction of brick units bonded together with mortar is termed as brick
masonry. Brick is a building unit of hard inorganic clay material of a size which can be
masonry. Brick is a building unit of hard inorganic clay material of a size which can be
conveniently handled. The strength of brick masonry work depends upon the quality
conveniently handled. The strength of brick masonry work depends upon the quality
of bricks and type of mortar used.
of bricks and type of mortar used.
7. Types Of Bricks
Generally two types,
=>Traditional bricks;
Size: 23cm*10cm*10cm (with mortar),
=>Modular bricks;
Size: 20cm*10cm*10cm (with mortar).
For beautification other types of ceramic bricks are also be used
10. GENERAL PRINCIPLES TO BE OBSERVED IN BRICK
MASONARY CONSTRUCTION
1.
The bricks used in a good work
should be sound hard and well
burnt with uniform size shape
and color. The bricks should not
absorb water more than 20% of
their weight when dry when
immersed in water at about 24
hours.
11. 2. The bricks should be thoroughly soaked in clear water . It helps to remove dirt, dust
and other soluble salts which causes efflorescence. It also reduces their tendency of
suction of water from wet mortar.
12. 3. The bricks should be laid on a full bed of mortar. They should be slightly
pressed in to the bed mortar while laying so as to ensure proper adhesion.
13. 4. All the joints should be properly flushed and filled with mortar
so that no cavity is left in between.
5. No brick bats should be used in the work except when it is
absolutely necessary
6.Brick work is generally laid in the English bond .Other types of
bonds like Flemish bond, diagonal bond, Dutch bond etc are also
be used
14. 7. Only specified mortar of a good quality should be used in the
work, the mortar ratio is 1:4 .Thickness of joints should not exceed
13mm in any case
8. The bricks must be laid on proper bed with their frogs pointing
upwards
9. Plastering should be done after about 28 days of completion of brick
masonry.
17. Header - Bonds two wythes together
Wythe: vertical layer 1 unit thick
Rowlock laid on face,
end visible
Stretcher - long dimension horizontal
& face parallel to the wall
Soldier - Laid on its end, face parallel
17
19. Why bond is necessary ???
• Eliminates continuous vertical joints
• Imparts strength to the masonry
• Defective arrangement reduces strength &
durability
• A wall having continuous vertical joints does
not act as homogeneous mass
20. Types of Bond
English Bond
Flemish Bond
Stretching Bond
Heading Bond
Garden Wall Bond
Facing Bond
Raking Bond
Dutch Bond
English Cross-Bond
Zig-Zag Bond
Silverlock’s bond
22.
Heading course should never start with a queen
closer
Stretchers should have a minimum lap of ¼ their
length over the header
Even number of half brick walls present same
appearance
For odd number we see stretcher on one face and
header on other
In thick walls, the middle portion is entirely filled
with header
23. FLEMISH BOND
Every course consists of header and stretcher
Header are centered over stretcher
Every alternate course start with header
Closers are inserted next to the quoin
24.
Single flemish bond:
Combination of english and flemish bond
In a course, facing is flemish and backing is
english
Cannot be adopted in walls having thickness
less than one and half brick
Provided for the attractive appearance of the
flemish bond
25.
Double Flemish bond:
Each course presents the same appearance both in the
face and back of the wall
Every course consists of headers and stretchers
alternately
Best suited for consideration of economy and
appearance
This type of bonding is comparatively weaker than
English bond
26. Comparison ??
English bond is stronger
Flemish is more attractive
Flemish requires more attention
Flemish is economical
27. Strength Of
Brick Masonry Depends On:
1. TYPES &
STRENGTH OF
BRICKS
2. MIX OF MORTAR
3. SIZE & SHAPE
OF MASONRY
CONSTRUCTION
35. WE CAN REMOVE DEFECTS IN BRICK
MASONRY:
• Sulphate attack can be removed by
suitable
construction details and choosing materials.
• Efflorescence can be removed by brushing and washing
the effected surface repeatedly
• Shrinkage on drying can be prevented by using good
quality brick and by protecting masonry from moisture
penetration
• Corrosion of embedded iron or steel can be removed by
encasing the reinforcement or iron member in dense cement
mortar .
36. SEISMIC RISKS DUE TO BRICK MASSONRY
IN BANGLADESH (DHAKA):
AT THIS TIME DHAKA IS IN A
GREAT RISK DUE TO
EARTHQUAKE. IT CAN BE AN
ABANDONED CITY, IF WE DO NOT
TAKE ESSENTIAL STEPS.
Earthquake cannot be prevented but the
damage they cause can be greatly reduced
by following
seismic provisions, proper structural
planning, design and detailing.
37. Plastering
• DEFINATION OF PLASTERING:
The word “plaster” comes from the Greek language meaning
“to daub on”.
This is a process of covering rough surfaces with a plastic
material to obtain an even , smooth , regular ,clean &
durable surface.
On the other hand we say that
A mixture of lime or gypsum, sand, and water, sometimes
with fiber added, that hardens to a smooth solid and is used
for coating walls and ceilings.
41. SAND USED IN
PLASTERING
• River Sand: Find, round, polished, it may have
impurities like pebbles , contains gravels
smaller in size, suitable for plastering.
• Fine Sand: All particles i.e.100% pass through
#16(ASTM) sieve used for plastering.
Size: 1/16 in
Fineness Modulus: 2.2-2.6
42. KINDS OF PLASTERING :
There are several different types of Plaster
available such as :
(a) Lime Plaster
(b) Cement Plaster
(c) Mud Plaster
(d) Stucco Plaster
(e) Plaster on lath
43. LIME PLASTER
When lime is used as the binding materials, it
is called lime plaster.
Lime plaster is type of plaster composed of
hydrated lime, sand and water. Lime plaster is similar to
Lime mortar, the main difference is the based on use
rather than composition. Hydraulic lime is harder and
stronger .Mortar for lime plaster is usually prepared by
mixing sand and lime in equal proportions. Cement is
small quantity added to the mixture to improve its
strength.
45. MUD PLASTERING:
The surface to be plastered is prepared exactly in the same manner as that
for lime or cement plaster. Mud plaster is generally applied in two coats, the
first coat being 18mm thick while the thickness of the second coat is kept
6mm.
46. STUCCO PLASTERING
Stucco is the name given to a
decorative type of plaster which
gives an excellent finish. Stucco
plaster can be used for interior as
well as exterior surfaces. It is usually
laid in three coats making the total
thickness of the plaster to about
25mm .the first coat is called the
scratch coat ; the second a finer coat
, also known as the brown coat, and
the third is called white coat or
finishing coat.
48. CEMENT PLASTER
When cement is used as the binding materials, it is called cement plaster. It is
especially suited for damp condition. Cement plaster is usually applied in one coat.
The thickness of coat can be 12mm, 15mm or 20mm depending upon the site
conditions and type of building. When the thickness of plaster is more than 15mm.
6 MM thickness of cement plaster and cement mortar 1:3 or 1:4 is recommended
for cement plastering on RCC surfaces.
50. PLASTER ON LATH
Lathing may be either of wood or that of expanded metal.
Wooden lath consists of thin strips of well seasoned
wood, about 25mm .in width and 90 to 120cm.
53. Smooth Cast
It is a finish which presents levelled and smooth
surface. The mortar for the finish is made by
mixing cement and fine sand in ratio of 1:3.
54. Rough Cast
• It is a finish in which the mortar
for the final coat contains a
proportion of fairly big size coarse
aggregates. The mortar for the
finish is made by mixing cement
fine sand & coarse aggregates in
the ratio of 1: ½ : 3.
55. Pebble Dash
• It is a finish in which small pebbles or crushed
stones of suitable size are thrown on to a freshly
applied final coat of mortar and left exposed.
Ratio:
• cement : coarse sand =1:3
56. Scrapped Finish
It is a finish in which the final coat after being
leveled and allowed to stiffen for a few hours.
The final coat is usually 6 to 12mm thickness
57. Textured Finish
In this finish, ornamental patterns or textured
surfaces are produced by working with various tools
on the freshly applied final coat.
58. Defects in plaster work
Cracking
Efflorescence
Falling out of plaster
Blowing of plaster
59. Cracking
a. Old surface not being properly prepared.
b. Movements in the backing either on account due to
shrinkage caused by the drying of the backing
material.
c. Excessive shrinkage of plaster due to the application
of mortar in thick coats.
61. Efflorescence
It is solvable salt are present in
bricks or the mortar they absorb
moisture
From atmosphere and go in to
solution which appears on the
surface in the form of whitish
substance as the moisture dries
out and the salts crystallize.
Remove of efflorescence by
applying a solution zinc sulphet
and water and brushing off the
surface when dry.
62. Falling out of plaster
a. The adhesion of the plaster to the back ground may not be
perfect.
b. The suction of the backing materials may not be uniform.
c. Excessive thermal changes in plaster.
63. Blowing of plaster
This consists of information of small patches of plaster
swelling out beyond the plastered surface and chiefly due
to improper slaking of lime particles in the plaster.
64. ADVANTAGES OF
PLASTERING
a) Easy in application
b) No surgery is required.
c) Plaster is the most common form of
interior wall finishing
d) If properly mixed and applied, a plaster
coating creates a stronger and more
durable.
65. DISADVANTAGES OF PLASTERING
a) When plaster cracks then difficult to
repair.
b) Repairing is very expensive.
c) Despite the extra labor of hanging and
finishing drywall, it tends to be less
expensive than plastering
66. PAI N
T
What is paint?
Paints generally consist of three components:
Pigment, Binder, and Solvent. The pigment
gives colour, the binder makes sure the
pigment stays where you put it and the
solvent makes the paint fluid and evaporates
when you have applied the paint.
Constituents of an Oil Paint:
•
•
•
•
•
•
A base
An inert filler or extender
Coloring pigment
A vehicle
A solvent or thinner
A drier
67. Characteristics of a Good
Paint
•
•
•
•
•
•
•
•
stick well to surface & able to seal porous substrata
consistency should provide easy workability
thickness should be adequate for good protection & decoration
paint film should dry easily
able to withstand adverse weather effect without losing gloss
offer resistance to failure by checking, cracking & flaking
possess good moisture resistance
color should not fade