Asked by: Madhu Schonebohm
home and garden landscaping

Can you concrete over paving slabs?

Last Updated: 22nd April, 2020

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While pavers, stones and other types of paving materials offer a more decorative look, concrete is valued for its strength and low maintenance. A slab poured over an existing slab is more vulnerable to frost heave damage and cracks.

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Just so, can you pour concrete over brick patio?

Pour the concrete over the brick patio and to the edges of the form surrounding the brick surface, filling the form to the top. Spray the concrete with concrete sealer, then wait 72 hours more before using the new concrete patio.

Similarly, can you lay paving slabs without cement? Although building your patio over a concrete slab helps to ensure it won't settle unevenly later, you can build a patio without cement. By laying flagstone, tile, brick or other sturdy, flat pavers on a well-prepared base, your patio will be less expensive and more water-permeable.

Subsequently, one may also ask, can you tile over paving slabs?

When tiling a floor the surface needs to be secure and firm. Only way to do it right would be to pull up the pavers and lay a slab then tile. As above – the issue is not the weight, it is that the pavers will move about, causing the tiles to either crack or come loose (even if you use a flexible tile adhesive).

What is poor man's concrete?

We have a few companies locally that offer "poor man's concrete". I'm not sure exactly what it is, but I've seen it in driveways and such. It's a white powdery material they dump and flatten out and when it gets wet, it's supposed to harden like cement.

Related Question Answers

Xia Quatrelivre

Professional

Does concrete stick to brick?

Concrete has a low water-to-cement ratio and is a thinner consistency than mortar. Mortar, which is a mixture of water, cement, and sand, has a higher water-to cement ratio than concrete. It has a thicker consistency which makes it a great adhesive and bonding agent for bricks and tiles.

Umaro Bertani

Professional

How do you cover pavers?

How to cover up old outdoor pavers
  1. Measure your area and buy the tiles. Work out where they are to go before starting Step 2.
  2. Attach the tiles to each other with joining clips. If you join them in a row (rather than a grid) use a utility knife to cut the clips to size.
  3. Use pebbles to fill gaps.

Naeem Escusa

Explainer

How thick can you lay concrete?

As a rule of thumb, concrete slabs supporting lighter weights such as paths, patios and shed bases will need to be 75-100mm thick, while driveways and garages need to be at least 100mm thick.

Weidong Bolito

Pundit

Can you lay porcelain tiles on sand and cement?

We recommend installing your porcelain paving on a wet mortar bed of “6:1” grit sand to Portland cement or a concrete bed. Adhesive is strongly advised to form a bond bridge between the wet bed and the paving. If an adhesive is not used the porcelain will not stick to the base and become loose.

Betzabe Ayela

Pundit

Can I tile directly over concrete?

Although tile can be placed directly over a concrete slab, products such as Schluter's Ditra are designed to separate, or “uncouple,” the tile from any potential movement in the substrate and protect the tile and grout from cracking.

Rick Pickhard

Pundit

How do you lay slabs on slabs?

How to lay the first paving slab
  1. Paving slabs are bedded in a mortar mix with four parts sharp sand to one part cement.
  2. Starting in one corner of the sub-base area (at the highest point), lay about 60mm of mortar on top of the sub-base.
  3. Carefully lift the first slab and lay it on top of the mortar.

Guangming Petermaier

Pundit

What do you put over pavers?

Apply Polymeric Sand Over the Pavers
Pour several small heaps of polymeric sand over the patio or walkway. Do not over-apply the sand, because the excess will be hard to remove. You can always add more sand, as needed. The goal is to completely fill the cracks between pavers, without leaving excess sand on the surface.

Aitana Nandini

Teacher

How do you clean concrete slabs?

How to clean your patio with bleach
  1. Step 1: Mix the bleach with water. First, mix the bleach with water in a five-parts-water-to-one-part-bleach ratio.
  2. Step 2: Pour the mixture on your paving slabs.
  3. Step 3: Start brushing and then leave for 15 minutes.
  4. Step 4: Rinse.

Salahddine Alfafar

Teacher

Can you use 10mm porcelain tiles outside?

While it is the perfect material for outdoor use, not all porcelain tiles can be used outside. Standard 8-10mm thick porcelain tiles are not recommended for external use, as they are not strong enough to withstand heavy furniture and harsh weather conditions.

Federico Arcelus

Teacher

How do you lay a patio?

Here's how to lay a patio in 6 easy steps.
  1. Dig 150mm into your patio area.
  2. Lay a compacted sub-base of 100mm.
  3. Cover the area with 40mm of concrete mix.
  4. Lay paving slabs 15mm into the concrete with a 10-15mm gap.
  5. Leave to set for at least 24 hours.
  6. Fill the gaps between the paving slabs with concrete mix.

Horacia

Reviewer

How many slabs can I lay in a day?

I can lay about 25 square metres of random lay rough cut slabs a day. Anything over 20 is a good speed. /Obviously it all depends on how accurate your base is and the quality of slabs.

Gertraud Haider

Reviewer

What is the ratio of sand to cement for paving?

Lay the paving slabs on a full mortar bed, which should support the whole slab, not just the corners. Use a mortar mix of 6 parts sharp sand to 1 part cement. Mix together with just enough water to make it damp and workable, but not overly wet and runny.

Veselka Koletzki

Reviewer

Can I lay a patio myself?

Can I do it myself, and if so how? DIY guru, Jo Behari, says: A patio is relatively simple to lay and the materials are available at hardware stores. First, dig out any turf or plants down to about 10-15cm to form the foundations. Then put down a layer of 'hardcore', which is broken bits of rubble and brick.

Heraclia Terrado

Supporter

How much cement do I need for a patio?

Enter the size of the slab you want to build in square feet. The calculator will indicate the number of 60 or 80 pound bags of QUIKRETE® Concrete Mix you need to build a 4″ or a 6″ slab. (All yields are approximate and do not include allowance for uneven subgrade, waste, etc.)

Radya Foja

Supporter

How do I build a simple patio?

A Small Backyard Patio: The Simple Design Steps
  1. Decide where you want your patio.
  2. Measure off the length and width of your patio.
  3. Visit your local home improvement center to buy paving stones.
  4. Dig out the area!
  5. Compact the soil with a tamper and fill the area.
  6. Fill the area with leveling sand.
  7. Lay your pavers!