Masonry Burnaby
Masonry Burnaby - Ashlars Masonry means the kind of stone masonry wherein finely dressed stones are laid in cement mortar or
lime mortar. In this masonry, all of the joints are regular, thin and have uniform thickness, and all the courses are of the same
height. As this type of masonry needs the dressing of stones, it is fairly costly.
Ashlars masonry is best suited for architectural buildings, heavy structures, abutments of bridges and high piers.
This type of masonry is further sub-divided into the following: Course Ashlars Masonry or Ashlars Fine Masonry, Random Course
Ashlars Masonry, Quarry Faced or Rock Ashlars Masonry, Rough Tooled Ashlars Masonry, Ashlar Facing, Block-in Course
Masonry and Chamfered Ashlars Masonry.
In Ashlars Fine or Coursed Ashlars Masonry, the stone blocks of same height in every course are used. The thickness of the
mortar is the same and each and every stone is fine tooled on all sides. This is really a costly type of stone masonry because of
the waste of materials and the heavy labour while dressing. In this particular type of stone masonry, satisfactory bond can be
obtained.
Random Coursed Ashlars Masonry consists of fine or coursed ashlar, even though the courses are of varying thicknesses that
depends on on the building's character.
Quarry or Rock Faced Ashlars Masonry is similar to rough tooled type although there is a chisel-drafted margin left rough on the
surface. This is called quarry faced stone.
Block-in Course Masonry refers to a class of ashlars masonry that occupies an intermediate place between ashlars and rubble.
These stones are all correctly squared and dressed. They resemble coursed rubble masonry or rough tooled ashlars masonry.
Chamfered Ashlars Masonry is similar to Quarry Faced Masonry with one difference. The edges are beveled or chamfered to 450
for depth of 2.5 cm or more.
The best type of ashlars masonry is Ashlar Facing. This particular type of masonry is really pricey and because of this fact, it is
not normally utilized throughout the whole thickness of the wall, except in works of great strength and importance. To maintain
economy, the majority is made in rubble whilst the facing are built in ashlars.