A 4:1 mortar mixture is mixed dry then spread over the finished paving. You can also use quick-drying concrete mix. If that’s the case, laying pavers on concrete shouldn’t take you too long. if you use a dry mix, you have to lift the slab and remove some of the powder. You need to level out the Earth. Scoop four shovels full of sharp sand onto the plastic sheet to make mortar for general use, such as laying paving slabs, or three shovels of sharp sand to create a patio pointing mix (for filling the gaps between paving slabs). Favourite answer. Buy bags of concrete designed for building retaining walls by stacking the bags and pouring water over them. 1. Each joint is then packed down with the edge of a trowel or similar implement to pack the dry mix into the joints. It should be at least two inches deep. Laying paving slabs on a dry mix? Can you lay paving slabs on a dry mix? On a cold day, the sand will be saturated and therefore a lot less water is needed. Lay the paving slabs, leaving 8 … Wet or Dry Mix for Laying Patio Slabs and What Ratios to Use? my husband was a stonemason for over 40 years and I have seen him dig out a shallow depression where he wanted the slab then fill it with dry concrete or mortar then lay the flat stone on top, fill the cracks with dry concrete and sprinkle it with water and it would set up and some of the first ones are still fine after all this time so it does work. If you just lay the slabs on a sand bed and dry sweep the joints it will not last at all.Just look at all the websites on path and patio laying and the will say the same. Create the mortar mix – add a 30mm layer 4. Dry pointing paving slabs may seem like a great solution but there is a much quicker and long lasting method. How To Lay Paving Slabs On Sand - Simple: You Don't! I always thought you laid them on plain old sharp sand so I'm wondering what this dry mix actually consists of and is it a better alternative to sharp sand - 25 bags of which I've already bought for the small paving job I'm due to attemp later on in the month. We are having trouble getting hold of a cement mixer. Anonymous. I watched Gardens Unplugged on the box last weekend and watched the presenter lay paving slabs on what he referred to as 'dry mix'. Break open the bags and pour the dry concrete directly into the trench and fill the trench to the top. Posted 10 years ago Pigface if you use a proper "plasticised" mortar mix, you can get the last millimeter right by thumping the slab. Prime the back of the flags with a cement-based primer 3. Relevance. this process may need repeating several times to ensure a good solid joint. Don't go overboard with the pointing, depending on the gap, fill it with dry mix or pea gravel to within 1/4" of the top and just use a bit of mortar on top. Prepare your concrete 2. What is the method? QUICK GUIDE: LAYING A PATIO ON EXISTING CONCRETE. Please help :s. Answer Save. Using a soft brush you sweep the mix into the joints. Instances where the weather is hot and the sand is dry, you will need more water when compared with a cold and wet day. Be sure to wear gloves and a mask. Use paving block sand and a tamper tool. 2 Answers. No messing about, simple mix, pour and sweep. by baron777 » Thu Sep 08, 2016 12:29 pm Last post by neil-the-handyman Mon Sep 26, 2016 11:33 pm 1 decade ago. Avoid using a dry mix as it won’t set to the strength needed to hold the weight of a car, but be careful not to have it too wet either (as you would when laying a shed foundation) as it would be near impossible to lay the paving slabs without staining them! Trench and fill the trench and fill the trench and fill the trench to the top or! Paving slabs, leaving 8 … Laying paving slabs on a dry into! 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