Building Construction Handbook, Eighth Edition

(Nancy Kaufman) #1
Site Tests ~ the majority of materials and components arriving on
site will conform to the minimum recommendations of the
appropriate British Standard and therefore the only tests which
need be applied are those of checking quantity received against
amount stated on the delivery note, ensuring quality is as ordered
and a visual inspection to reject damaged or broken goods. The
latter should be recorded on the delivery note and entered in the
site records. Certain site tests can however be carried out on
some materials to establish specific data such as the moisture
content of timber which can be read direct from a moisture meter.
Other simple site tests are given in the various British Standards
to ascertain compliance with the recommendations, such as tests
for dimensional tolerances and changes given in BS EN 771-1 and
BS EN 772-16 which cover random sampling of clay bricks of up to
10 units. An alternative site test can be carried out by measuring a
sample of 24 bricks taken at random from a delivered load thus:-

Refs. BS EN 772-16: Methods of test for masonry units.
BS EN 771-1: Specification for masonry units.

Materials Testing

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