L.C.H. CUP LAND SURVEYING

L.C.H. CUP Coupe L.C.H.

Equipment for Measure and Control

An instrument for measuring the viscosity of paints on the building sites.

LABASSE PRACTICE M thode Labasse

Strength of Materials

An approach of design intended for justifying the resistance of shotcrete linings in tunnels and that consists in seeking the confining pressure which must create the supporting to keep up the convergence at a value fixed in advance. This approach applies if the work, because of excavation, is surrounded by a decompressed zone (broken), namely primarily in the case of galleries under thick cover.

LABORER Manoeuvre

Work

1. An unskilled worker.

2. Syn. with EARTHWORK CONCTRACTOR; NAVVY

LACK OF COMPACTNESS OF CONCRETE Manque de compacit d'un b ton

Defects (Building Materials)

A concrete defect characterized by a gravelly aspect of surfaces and in particular of angles.

LACK OF FUSION Manque de fusion

Defects (Welding)

Syn. with UNWELDED

LACK OF HOMOGENEITY Manque d'homog n it

Defects (Building Materials)

A general term that applies o.s. to the materials whose cohesion or agglomeration of various constituents is disturbed by the presence of foreign bodies, an inadequate connection, surfaces of discontinuity, etc. For a stone for example, this defect brings about the presence of strands, soiled cracks, presence of shells, etc.

LACK OF METAL Manque de m tal

Defects (Welding)

Defect in a weld bead that appears as a cavity instead of a small extra thickness.

LACK OF PENETRATION Manque de p n tration

Defects (Welding)

A serious defect affecting a weld whose bead does not cross the thickness of pieces...