DIY Doctor

Mortar for retaining wall

Postby sWozzie » Mon May 14, 2007 8:33 pm

I am building a retaining wall and was wondering if there are any special requirements for the mortar. Presumably it would have to be stronger than normal mortar and have more mositure resistant attributes?
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Simply Build It

Postby thedoctor » Tue May 15, 2007 11:32 am

When there is a chance of sulphate attack its a good idea to use a sulphate resisting cement. Using sulphate resisting mortar below ground a mix of 3 to 1 is recommended. This strong mix reduces flexibility so where possible a thicker wall of two skins tied together would serve best.
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