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Granular base

Brick Development Association ...can also be taken up, altered and reinstated. Essentially the flexible system consists of pavers close butted laid on a 30-50mm uniform bedding course of sand on a compacted granular base. The fine joints are sand-filled. It is essential to ensure that a suitably robust edge restraint is provided to prevent the lateral spread of the pavers... See #1. Frequently Asked Questions - A Jandris And Sons Jandris & Sons. Are concrete footings ever needed or required? Most retaining walls can be built directly on 4-6" (100-150mm) of well compacted granular base. However, there may be occasion to consider the use of a concrete leveling pad. Examples include: applications in or near water, a taller wall built on... See #2. Frequently Asked Questions - A Jandris And Sons Jandris & Sons. Are concrete footings ever needed or required? Most retaining walls can be built directly on 4-6" (100-150mm) of well compacted granular base. However, there may be occasion to consider the use of a concrete leveling pad. Examples include: applications in or near water, a taller wall built on... See #3. 1: http://www.brick.org.uk [c1151625] 2: http://www.ajandris.com [c982243] 3: http://www.ajandris.com [c1251302]