Pavers – Frequently Asked Questions – Part 1

by Pavestone on March 11, 2010

Do pavers need to be mortared into place?

Patio Pavers

No mortar is needed to install concrete pavers. It is recommended that you use course granular sand, which will bind the pavers together with a friction joint. This sand is swept into the joints and compacted to achieve the proper installation.

What is the white residue on the pavers?

The white residue on top of the pavers is a condition called efflorescence. This condition is greatly minimized with the use of Pavestone pavers because of an additive that Pavestone uses to control this condition. Efflorescence will wear off in about 2 to 3 months naturally but it can be removed with whitewall cleaner and a wire brush. Ask your Pavestone dealer about other professional cleaners.

Where can I get a plate compactor and what do I need it for?

Just about any equipment rental yard will have a plate compactor usually renting for about $45-$60. One of the final steps in completing your Pavestone paver project is running a plate compactor over the top of your paving stones. Simply put, this helps lock your pavers into place. The compactor helps seed your pavers down into your base sand evenly (they will drop approximately 1/4 inch) and also helps to vibrate your joint sand down to fill the entire joint securely locking the paver into place. There is no better tool for compacting your sub-base after you have tilled your Portland cement into your soil. This is a big time saver from which you can really get your money’s worth.

Can I use Pavestone pavers over my old concrete patio?

As long as your existing patio is in good condition. There can be cracks in the old patio as long as it is still level and is not unlevel in any area. Concrete makes a great base for our products. You will still need to retain the border of your project. Since you will not be able to stake in an edge restraint around it, a heavy-duty silicon based construction adhesive is recommended. Use this on the bottom of your border stones only to adhere it directly to the existing concrete. IMPORTANT NOTE: Any time you are overlaying an existing patio it is important to recognize how much room you have between the existing patio and the threshold of your door. Our typical paver is 2 3/8 inches tall. There has to be enough room for you to overlay the patio without raising the new level above your door’s threshold. If a typical paving stone will not work for you, check with your local Pavestone dealer about ordering one of our thinner Pavestone overlay pavers.

Are Pavestone pavers strong enough to drive a car on?

Yes, our pavers exceed the industry standards for strength and low moisture absorption. The industry standard for concrete pavers is a minimum of 8,000 psi. and typically the Pavestone pavers test between 10,000 to 11,000 psi. That is approximately 3 times stronger than poured concrete. Also our absorption rate is in the 2% to 3% range and the industry requires 5% or less. Compared to regular poured concrete that has an absorption rate of about 17%, concrete pavers will not absorb much moisture or be damaged by freeze thaw cycles.

Aluminum BrickStop EdgingWhich type of edge restraint do you recommend I use around my patio, plastic or aluminum?

We recommend the aluminum BrickStop edging, the aluminum is less affected by weather conditions than the plastic kind and it is easier to cut and form to fit your project. Also, it won’t deteriorate like other products.

We will be posting more F.A.Q.’s in future posts.

Related posts:

  1. Pavers – Frequently Asked Questions – Part 2
  2. Pavers – Frequently Asked Questions – Part 3
  3. Retaining Walls – Frequently Asked Questions
  4. Cleaning Stained Pavers – Sealing Pavers – Maintenance
  5. Paving Stones Installation Guide

{ 2 comments… read them below or add one }

Debbie Mason June 7, 2010 at 9:11 am

How do you know how to cut the patio stones when it will be on a curve. I want to put a patio underneath our pool ladder with a 24′ round above ground pool.

Bruce Soileau June 7, 2010 at 10:43 am

Hey Debbie, you can lay the stones out past the project area, mark the radius and cut with a masonry saw. After measuring the radius, you can lay a water hose in a circle around your radius, then use the hose to mark your pavers for cutting. Send us some pictures of your completed project. Best of luck!

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