Landscape Detailing Volume 2 by Michael Littlewood;

Author:Michael Littlewood; [Littlewood, Michael]
Language: eng
Format: epub
ISBN: 9781136154058
Publisher: Taylor & Francis (Unlimited)
Published: 2022-03-28T00:00:00+00:00

Workmanship

Granular sub-base: Select thickness from the following:

Heavy clay

Silky clay

Sandy clay

Sandy and well-graded sandy gravel

Specify method of laying the sub-base material. If the sub-base is used extensively by site traffic, damage is bound to occur and this should be made good prior to spreading the bedding course. The surface of the sub-base should be blinded before laying the bedding course.

Control samples: The specification of control samples should be related to the size and importance of the job. It may be difficult to justify control samples on small jobs.

Inclement weather. State procedure for work in wet and cold weather.

Level of paving: Paving should be set above drainage outlets to allow for future consolidation of the paving by traffic. State permissible deviation from specified levels.

Laying bedding: Describe method of laying, levelling and compacting bedding material.

Laying blocks/pavers: A better appearance can often be achieved by slightly altering the bond pattern at the edges of the paving by trimming some of the blocks/pavers ‘in board’ of the edging blocks/pavers. State method of laying blocks/pavers. Take into account any cutting and by which process. Cutting blocks/pavers to fit around manholes, drainage outlets, etc., can be avoided by incorporating in-situ concrete surrounds. The appearance for this may be unacceptable. Alternatively, use very small unit pavers.

Compacting and jointing: Describe method of compacting blocks/pavers and filling joints.

Tolerances: Check if BS recommended tolerances are acceptable. State tolerance for surface irregularity after completion.

Remedial work: Advise of methods of protection and/or reinstatement during the Contract or Defects Liability Period.

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