5 sizes grades and types of bricks contd grades of

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ND TYPES OF BRICKS (Cont’d) Grades of Building Bricks - Grade SW: Withstands severe weathering Grade Grades (freeze-thaw, alternate wetting and drying) - Grade MW: for moderate weathering Grade - Grade NW: for negligible weathering Grade 9.6.3 Types of Facing Bricks - Type FBX: High degree of mechanical Type perfection, narrow color variation, minimum size variation per unit - Type FBS: Type Wide range of colors, greater variation of size per unit - Type FBA: NonType uniformity in size, color and texture. uniformity 28 29 Extruded – Wire Cut Wood Mold Extruded – Smooth Extruded – Raked 30 Brickwork Strength Depends on: – Strength of the masonry unit – Strength of the mortar Strength 31 9.6 TERMINOLOGY, BONDS AND JOINTS IN BRICK 9.6 MASONRY MASONRY 9.6.1 Terminology used in laying bricks: Bed joint, Head joint, Collar joint, Wythe, Stretcher, Header, Soldier, Rowlock 9.6.2 Structural bonds used during brick laying Running Bond: All courses of brick made of stretchers, with breaking of joints, from one course to the other joints, English Bond: made of alternate courses of stretchers and headers, with breaking of joints breaking Common Bond or American Bond : Made of stretchers courses, with every sixth course being made completely of headers, with breaking of joints every Flemish Bond: In the same layer ( or course) stretchers and headers are laid alternatively, with breaking of joints laid 32 Basic Brickwork Terminology Head Joint Bed Joint Course - horizontal layer of brick 33 Basic Brickwork Terminology 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 34 Brick Bonds Structural Bonds Cavity (Veneer) Walls – Running bond – Stacked bond 35 36 9.6 TERMINOLOGY, BONDS AND JOINTS IN BRICK 9.6 MASONRY(Cont’d) MASONRY Procedure for building brick walls: (i) Laying of lead (or corner bricks) to establish the wall planes and courses heights - (ii) Bricks in between leads are laid to a line ( a heavy string stretchers taut between line blocks at each lead) each 9.6.3 Joint Tooling: Required for giving b...
View Full Document

This document was uploaded on 03/06/2014 for the course ENG 3731 at Memorial University.

Ask a homework question - tutors are online