Concrete or mortar for Paving Slab Edge?

Reginalddean · 5 Aug 2007

Hi

I have lowered the ground level all around the house to one patio slab width. This uncovered around 9 airvents and some points the patio was 2 courses above the dpc!

Under the slabs was mortar, shingle and hardcore, as you can imagine there is now some gaps under the slabs that are left. What I would like to do is put an edge under the slabs (against the hardcore etc) to make it look better and hopefully support the slabs.

Can I simply buy a bag of cement or mortar and pile it in the gaps and smooth the edge? What is the best material and method for achieving this?

Regards

noseall · 5 Aug 2007

mix sharp sand with cement at 4:1, not too much water and pack it into or under any voids.

Reginalddean · 5 Aug 2007

Thanks for the swift response. I will have a go during the week! Do I need to get a board or something to prop up the cement while drying or will it be a stiff mixture that will stand up on its own?

Regards

noseall · 5 Aug 2007

Reginalddean said:
Do I need to get a board or something to prop up the cement while drying or will it be a stiff mixture that will stand up on its own?

Regards

correct! add little water to the mix and this will give you a slump free mix that can be successfully shaped to a degree.

Reginalddean · 5 Aug 2007

Thanks for your help, fingers crossed!!!!

Reginalddean · 19 Aug 2007

Hiya,

Just to let you know I have completed the job at last and your advice worked a treat!!!!

Only problem was I didnt wear gloves and and the sharp sand has ripped the skin of my fingers

Thanks for your help, onto the next job!!

Mr M · 19 Aug 2007

Reginalddean said:
Only problem was I didnt wear gloves and and the sharp sand has ripped the skin of my fingers

Make sure your pint doesn't slip through your super smooth fingers

noseall · 19 Aug 2007

Mr M said:
Make sure your pint doesn't slip through your super smooth fingers

this is no joke.

it used to happen to me when i first started bricklaying. the condensation on the pint glass actually felt slimy, due to fingerprint-less fingers. pints do slip and the slipping sensation is numbed due to the wear.

honest!

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Concrete or mortar for Paving Slab Edge?

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