(Materials) bricks MASONARY CONSTRUCTION.pptx

BRICKS LAYOUT BRICKS MASONARY MATERIALS ANS CONSTRUCTION TYPES OF BONDS

1. Materials & Construction B rick & B r ick M asonry SUBMITTED By: Salahuddin Arch 19-09 SUBMITTED TO : SIR AR-KHALID CHAUHAN MCA BZU MULTAN

2. Masonry Masonry  is the building of structures from individual units, which are often laid in and bound together by mortar; the term  masonry  can also refer to the units themselves Brick Masonry The art of laying bricks in mortar in a proper systematic manner gives homogeneous mass which can withstand forces without disintegration, called brick masonry.

3. BRICK MASONRY-UNIQUEN ESS FIRE RESISTANCE SIZE DURABILITY WORAKABILITY ECONOMICAL CHARACTERI

4. TYPES OF BRICKS MASONRY Brick work in mud Brick work in cement

5. BRICK WORK IN MUD The mud is used to fill up the joints. Thickness of the mortar joint is 12 mm. Cheapest Maximum height of wall is 4 m.

6. BRICK WORK IN CEMENT 1st Class Cement of lime mortar is used. The surface and edges of bricks are sharp. The thickness of mortar joints doesn’t exceed 10mm 2nd Class Ground molded bricks are used. Bricks are rough and shape is slightly irregular. The thickness of mortar joint is 12 mm. 3rd Class Bricks are not hard ,rough surface with distorted shape. Used for temporary structures. Used in places where rainfall is not heavy.

7. ADVANTAGES OF BRICK MASONRY The Brick masonry is cheaper thancompared to stone masonry. Bricks are of uniform size. Bricks are very workable . Brick blocks don’t need any dressing. Bricks are very light in weight. No complicated lifting devices are necessary in brick work. There is no problem to its availability. They do not require transportation from long distances. Brick work can be done by the less skilled labours also. Bonding strength is very good and brick work is more durable.

8. SIZES OF BRICK Nominal size :- A standard metric brick has coordinating dimensions of 225 x 112.5 x 75 mm (9” x 4.5” x 3”) Architectural size :- Working dimensions (actual dimensions)of 215 x 102.5 x 65 mm (8.5” x 4” x 2.5”)

9. COURSE AND IT TYPES STRETCHER : A brick laid with its long narrow side exposed. HEADER : A brick laid flat with its width at the face of the wall. SOLDIER : A brick laid vertically with the long narrow side of the brick exposed. SAILOR : A brick laid vertically with the broad face of the brick exposed.

10. Frog The depression provided in the face of a brick during its manufacturing. Depth of frog in a brick 10 to 20mm frog should be upward because give a good bond with mortar and other brick

11. MASONRY JOINT Weathered joint :-Mortar joint has sloped (downwards) edge. Concave joint :-Joint concave inwards. Vee joint :-Mortar joint is the form of V. Flush joint :-Mortar joint is flush with the brick surface. Raked joint :-A large portion of the mortar joint is raked out not a safe ,impermeable joint. Stripped joint :- A medium large portion of the mortar joint is a safe permeable joint. Struck joint :-Mortar joint has aslope (upwards) edge.

12. RULES FOR GOOD BRICK BONDING  Uniform in size.  Bricks arranged uniformly throughout the wall.  Bats are used as little as possible.  The bricks in the interiors of wall laid as headers, that is, across the wall.  The lap not more than 2 and one-fourth(1/4) inches.  The vertical joints in every other course should be vertically over one another.

13. Joints Mortar joint In masonry, mortar joints are the spaces between bricks, concrete blocks, or glass blocks, that are filled with mortar or grout. Bed joint : A horizontal  joint  in masonry. 2a : a horizontal crack or fissure in massive rock. b : one of a set of cracks or fissures parallel with the bedding of a rock.

14. Brick bonds Common types used in Pakistan are Stretcher Bond Header Bond English Bond Flemish Bond Stretcher/Common

15. STRETCHER BOND Bricks are laid in stretchers. Used in walls of half – brick in thickness. Due to its constant occurrence in the last position it is also called Chimney Bond, Running Bond. This bond doesn’t develop proper internal bond

16. HEADER BOND Heading or Header Bond is laid on headers. Used for round quick sweeps . Should never be used in straight work as it is very week. This bond is used for facing of curved surface and footings in foundations.

17. ENGLISH BOND Bricks are laid in alternate courses of headers and stretchers. There is a chance of penetration of damp through transverse joints. Queen closures are inserted next to headers to produce overlap. English bonds are the strongest but it is to be noted that the continuous vertical joints are to be avoided. Appearance is not as good as Flemish bonds.

18. FLEMISH-BOND This bond has one stretcher between headers, with the headers centered over the stretchers in the course below. When a course begins with a stretcher, the course will ordinarily terminate with a stretcher at the other end. Brickwork that appears as Flemish bond from both the front and rear is Double Flemish bond.

19. Brick Bats The pieces of bricks, cut long their length and having width equivalent to that of a full or half brick are called "Brick bats ". Some common Brick Bats are shown below

20. Closers The portions made by cutting across their length in such a manner that their one stretcher face remains uncut or half cut. Queen closer: Queen closer is a brick, which is half as wide as full brick and is made by cutting a whole brick lengthwise into two portions. These are generally used next to the Quoin header for creating bonds in brickwork. KING CLOSER: A brick, whose one diagonal piece is cut off one corner by a vertical plane passing through the center of one end to the center of one side. BEVELED CLOSER: A brick cut longitudinally along a vertical plane, starting at the middle of one end to the far corner.

21. Quoins The external corners of walls are called Quoins • The brick which form the external corner is known as quoin brick.

22. Quoin Types QUOIN HEADER A corner header, in the face of wall, which is a stretcher in the side wall is known as "Quoin header“ QUOIN STRETCHER A corner stretcher in the face of a wall, which is header in the side wall is known as "Quoin stretcher

23. TOOLS USED IN BRICK MASONRY  Trowel  Plumb bob  Hammer  Spirit level  Mason square  Steel tape