Bed joint

(redirected from bed joints)

bed joint

[′bed ‚jȯint]
(civil engineering)
A horizontal layer of mortar on which masonry units are laid.
One of the radial joints in an arch.

Bed joint

1. The horizontal joint between two masonry courses; one of the radial joints in an arch.
2. The horizontal joint between two masonry courses. See also: Mortar joint

bed joint

bed joint, 1
1. A horizontal layer of mortar on which masonry units are laid.
2. One of the radial joints in an arch.
3. A horizontal crack in a massive rock.
References in periodicals archive ?
Corroded nails are also a worry, as are cracked or eroded mortar bed joints on the ridge or hip ridge tiles.
Check for signs of loose or slipped tiles and slates, corroded nails and cracked or eroded mortar bed joints on the ridge or hip ridge tiles.
In a Wrightian manner, the horizontality of the lawn and the density and compression of the garden wall are reinforced by the elongated proportion of Norman bricks with deeply raked bed joints and by the long shadows cast by projecting metal heads and stone sills of windows.
On all copings, the cross and bed joints should be sealed; the bed joints with cement and the cross joints with cement and an expandable type of caulking, in order to prevent water penetration as the joints expand and contract with the weather.
While investigating a set of masonry units with infill concrete hollows, provided masonry units are set in a "dry" way that is without filling bed joints with mortar, use of detailed micro-modelling can be advised.
There is no methodology to assess mortar properties of bed joints.
If we repoint a stone wall with stiff, strong, sand and cement mortar, then the normal flexing that happens between the stone slabs on lime mortar bed joints, will crack the new pointing, allowing water to seep behind the pointing and after a few hard frosts, the new pointing will break away in big lumps.
In masonry, upon shearing along bed joints, brick units also undergo upward translation, causing global volume increase.
Shear behaviour of bed joints, Proceedings of the 6th North American Masonry Conference, pp.
This state is accompanied by a process when at first tension cracks typically arise and bed joints open up, and the areas around the cross sections in which the joints were formed, ie the areas where the resultant of the tension leaves the cross-section core, are locally degraded.
In the case of stone masonry, this scope is relatively narrow, being characterised by growing permanent deformations accompanied by the rise and development of tension joints and shear cracks, or by crushing the filler of bed joints and stone blocks, and by a gradual disintegration of masonry.
2) Coping Stones: Depending upon the type of coping stones you should look for various things: On all copings the cross and bed joints should be sealed; the bed joints with cement and the cross joints with cement and an expandable type of caulking -- in order to prevent water penetration as the joints expand and contract with the weather.