Flooring Question

Movement on slabs

Have just laid a small patio. The base was a mix of topsoil and aggregate, then sharp sand. The slabs were then laid on dabs of mortar but there is a little movement when I walk on them.

2 Answers

The top soil is part of the problem.Any loose earth should have been removed,not mixed in.Secondly,"dot and dabbing" slabs onto loose sand is never going to hold them in place.If your looking for something that will stand the test of time,you may have to redo this.

Answered 17th Jul 2012

Roc builders

Member since 25 Aug 2011

The topsoil in the sub base is not recommended as it doesnt bond with the cement and also gives you a lot of soft spots. i would use scalpings or stone dust which will give a solid sub base. i would also recomend using a bed of cement rather than dabs as it leaves cavaties underneath which means your jointing is likely to crack and come out .

L @nd D Plastering and Property Development.

Answered 17th Jul 2012

L&D plastering and property development

Member since 17 Jul 2012

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