2 introduction to historical 92 developments in

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: VELOPMENTS IN MASONRY (Cont’d) (Cont’d) DEVELOPMENTS Late in 19th century tall buildings were built, of steel and reinforced Late concrete (pored into simple forms), economically Development of hollow concrete forms in 19th century averted the Development extinction of masonry as a building material - Cavity wall, developed by the British during the earlier part of the 19th century also contributed to the survival of masonry as a building material the This facilitated the introduction of thermal insulation High strength mortars, high-strength masonry units, and complex shapes High of masonry units extended the use of masonry for buildings of Masonry History Masonry Rich History Through the mid-1800s – Primary Building Materials Primary Late 1800s – New Products Developed – Ended Masonry’s Dominance Masonry History Masonry 20th Century Developments – Steel Reinforced Masonry – High Strength Mortars – High Strength Masonry Units – Variety of Sizes, Colors, Textures & Coatings Masonry - Primary Uses Today Masonry Concrete Masonry Units (CMU) Foundation Walls Foundation Structural Support Walls (low rise) Structural Backup Walls for Exterior Facing Backup Brick & Stone Facing Materials - Veneers Facing Decorative Walls Decorative Brick Masonry - Uniqueness Fire Resistance Size Durability 10 CMU Structural Walls on a Low Rise Building Reinforcing Structural CMU Walls CMU Structural Walls also serving as a “Backup” Wall for Brick 9.3 USES AND TYPES OF MASONRY MORTAR 9.3.1 Uses and Types of Masonry Mortar Mortar is as much a part of masonry as masonry units such as bricks, stones, etc. Mortar serves as : (1) A cushion and makes the masonry units to bear against one another and thus provides strength to the wall; (2) A seal in between the one masonry units, and keeps the water and air from penetrating it; (3) A bonding masonry agent to make the individual units to adhere to one another; and (4) A surface agent enhancer , proving beautiful contrast and appearance enhancer Most characteristics type of masonry mortar is made of Portland cement, hydrated lime, and aggregates (sand) and water. Portland cement acts as bonding ag...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online