O/D AGGREGATE OHIO TYPE (WATER) COFFERDAM

O/D AGGREGATE Granulat O/D

Building Materials

A grain that satisfies following conditions:

• screenings on the mesh sieve D is included between 1 and 15%;

• screenings on the mesh sieve 1.56 D are null.

OAK Ch ne

Building Materials

A tree providing a clear yellow or dark brown hard wood whose density ranges from 0.6 to 0.8. Most used species are the pedunculated oak and the chestnut oak.

This wood is notably used to carry out frames, temporary bearings, or for different wedgings.

OBLATENESS Aplatissement

Defects (Construction)

Geometrical damage of vaulted works that result in a deformation toward the inside of the cross section and which manifests itself by an increase of the curvature radius of the vault in its top part.

OBLIQUE JOINT Assemblag oulice; Joint d'onglet

Carpentry; Masonry

1. The assembly of a vertical timber piece (stud) in a slanted part (diagonal brace).

2. A joint of stone obliquely dressed, in diagonal.

OBLIQUE STONE Moellon en coupe

Masonry

A stone bonded on edge in the vaults.

OBLIQUE WELD Soudure oblique

Welding

A welded joint whose bead is oblique to the direction of the strain.

OBLONG Oblong

Construction

Of a part of construction or plan whose length is parallel to the axis of the unit that includes this part.

OBLONG HOLE Boutonni re

Construction

A port carried out in a part of a small thickness, longer than large, with rounded extremities, obtained by countersinking or boring a series of holes (outline) and...