Types of bonds

This is for basically f.e. and s,e, civil engineering students

1. BUILDING TECHNOLOGY AND MATERIALS TYPES OF BONDS SEMINAR TOPIC: Presented By: Pankaj Singh Roll no.: 29 S.E (Civil)

2. Bond In Brickwork Brick bond Bonding in brickwork in an arrangement of bricks, usually overlapping between courses in order to distribute load and provide stability. Bonding can also be used for decorative purposes. In general brickwork should not be less than quarter bonded.

3. Types of Bond Stretcher Bond Header Bond English Bond Flemish Bond Different Types Of Bonds There are a variety of bonds used for different types of works :

4. Stretcher A brick which is laid in a way that allows only the longer side of the brick to be exposed. Header A brick which is laid in a way that only the short end is visible in the wall. Basic Terms Queen Closer A brick of half the usual length, for completing a course or for spacing regular bricks.

5. Stretcher Bond In this type of bond all the bricks are laid with their lengths in the direction of the wall. This pattern is used only for walls having thickness of half brick i.e. 9 cm. e.g. walls in case of framed structure construction.

6. Plan for 2,4,6 courses Plan for 1,3,5 courses Elevation

7. Header Bond In this type of bond all the bricks are laid with their ends towards the face of the wall. This type of arrangement is suitable for walls which are one brick thick. This is suitable for walls of lightly loaded load bearing structure.

8. Plan for 2,4,6 courses Plan for 1,3,5 courses Elevation

9. English Bond This is most common and popular bond and is used for wall thickness ranging from 20 cm. and above. It consist of equal balancing of headers and stretchers in the wall, that is headers and stretchers are arranged in alternate courses. English bond constructed requires the following points to be kept in view : A queen closer must be provided after the quoin header. A header course should never start with a queen closer . Continuous vertical joints should not be allowed. The joints in the header course should be made thinner than those in the stretcher course. This is because of the fact that the number of vertical joints in the header course. In the stretcher course, the stretchers should have a minimum lap of (1/4) th their length over the headers.

10. English Bond

11. Plan for 2,4,6 courses Plan for 1,3,5 courses Elevation One Brick Wall English Bond

12. Plan for 2,4,6 courses Plan for 1,3,5 courses One And a Half Brick Wall English Bond

13. Flemish Bond In this arrangement of bonding brickwork each course consists of alternate headers and stretchers. Every alternate course starts with a header at the corner.

14. Elevation

15. Plan for 2,4,6 courses Plan for 1,3,5 courses Double Flemish Bond

16. Plan for 2,4,6 courses Plan for 1,3,5 courses Single Flemish Bond

17. Comparison of English And Flemish Bond