BS 5628-1:2005 pdf download
BS 5628-1:2005 pdf download.Code of practice for the use of masonry —Part 1: Structural use of unreinforced masonry.
3.12
effective thickness
thickness of a wall, pier or column assumed for calculating the slenderness ratio
3.13
key element
structural member capable of resisting a specified load
3.14
laterally loaded wall panels
walls subjected mainly to loads normal to the face od the wall
3.15
lateral support
3.16
lateral support
3.17
loadhearing wall
wall primarily designed to carry an imposed vertical load in addition to its own weight
3.18
masonry
assemblage of masonry units, either laid in-situ or constructed in prefabricated panels, in which the masonry units are bonded and solidly put together with mortar or grout
4OTIt Masonry may hr reinforced or unreiniorced.
3.19
orthogonal ratio
ratio of the flexural strength of masonry when failure is parallel to the bed joints, to that when failure is perpendicular to the bed joints
3.20
pier
member which forms an integral part of a wall, in the form of a thickened section placed at intervals along the wall
3.21
slenderness ratio
ratio of the effective height or length to the effective thickness
3.22
masonry units
bricks or blocks of clay, calcium silicate, aggregate concrete, autoclaved aerated concrete, manufactured stone and natural stone
3.23
types of masonry mortar
3.23.1
designed masonry mortar
mortar, the composition and manufacturing method of which is chosen by the producer in order to achieve specified properties (performirnci, concept)
3.23.2
prescribed masonry mortar
mortar made in pre-determined proportions, the properties of which are determined by the stated prcpiirtion of the constituents (recipe concept)
3.23.3
factory made masonry mortar
mortar batched and mixed in a factory
NOTE ft ma’ be “di modar which is ready m.zed oa1 unnj the addit sin ut water, or ‘wIs mortar” which ii supplied ready tar
3.23.4
semi-finished masonry mortar
mortar defined in 3.23.5 or 3.23.6
3.23.5
pre-batc’hed masonry mortar
mortar, the constituents of which are wholly batched in a factory, supplied to the huilding site and mixed there according to the manufacturer’s specification and conditions
3.23.6
prs’mixed lime—sand masonry mortar
mortar, the constituents of which are wholly batched and mixed in a plant. and supplied to the building site where further constituents specified or provided by the factory (e.g. cement and water) are added
3.23.7
thin layer masonry mortar
designed mortar with a maximum aggregate size less than or equal to a prescribed figure NOTE It is usually ued in joints between 1 mm and 3 mm thick
3.24
types of wall
3.24.1
single leaf wall
wall of bricks or blocks laid to overlap in one or more directions and set solidly in mortar
3.24.2
double-leaf (collar jointed) u-all
two parallel single.leaf walls. with a space between not exceeding 25mm. and so tied together as to result in common action under load
3.24.3
racily wall
two parallel single-leaf walls, usually spaced at least 50 mm apart, and effectively tied together with wall ties, the space between being left as a continuous cavity or filled with a non.loadbearing material
3.24.4
grou ted cavity wall
two paroillel single-leaf walls. spaced at least 50 mm apart, effectively t it’d together with wall and with the intervening cavity filled with fine aggregate concrete (grout), which may be reinforced, so as to result in common action under load
3.24.5
faced wall
wall in which the lacing and backing are so bonded as to result in common action under load
3.24.6
reneered wall
wall having a facing wh,h is attached to the backing, but not so bonded as to result in common action under load
3.25
wallette
small masonry panel constructed for test purposes
