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A reduction in the softening point of bitumen used in built-up roofing; may result from overheating.

The slope of a pipe, conduit, or channel usually expressed in inches per foot (or centimeters per meter) or in

A neatly built, smooth surface of brickwork.

1. Said of a concrete surface which requires no further concrete treatment other than curing, on completion of the forming

In structural engineering, that condition of a structural element (or its material components) which renders it incapable of continuing the

A building system designed so that its failure (or the failure of any part of the system) will not endanger