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Block Paving Base – the Preparation

Block Paving Base – the Preparation

Preparing a Block Paving Base

In this project we’re going to take a plain section of lawn and turn it into a beautiful backyard block paving patio. We’ll take you through all the steps, but first, we need to prepare the site.

Planning the Project

It all starts with a plan. You can lay your project out on paper, or use a free design-it Depending on the size of your project, you may be able to dig the area by hand or you may wish to bring in heavy equipment. Either way, having a smooth and level base for the pavers and landscape blocks is the most important step to successful completion of the project. Lay out the area you’ll be excavating, making it about a foot larger than the area to be paved. Remove the sod and dig down about seven to nine inches to leave room for the sub-base, a layer of sand and the pavers. When digging, try not to disturb the soil underneath, a process known as skimming. This helps provide a firm base.

Preparing the Block Paving Sub Base

Stakes and strings marking the exact dimensions of the patio are set into place. Check for square and level. Plan to slope the patio slightly, especially if it s next to a building, to help provide proper drainage. A layer of crushed stone or aggregate is spread over the soil and compacted with a plate compactor. Small areas can be compacted with a hand tamper. A second layer of sub-base is spread over the first and checked for level. Fill in any low spots. Compact again. The finished sub-base should be about three inches below the finished level of the pavers.

Creating the Block Paving Base

Before any block paving can be set into place, a bed of sand must be prepared. Use 1-inch conduit, pipe or similar material, and lay them 6 to 8 feet apart. Spread sand between the pipes, know n as screed rails . Take a 2 by 4 board and drag it across the rails, spreading and smoothing the sand as you go. Fill in any low spots. Slide the rails back as you go and fill the indentations in with sand. Trowel them smooth as you go. Don t walk on, compact or disturb the sand after you’ve finished screeding. You’re now ready to start laying the paving blocks. To stay up-to-date on all of our how-to projects, visit here often!

As found on Youtube

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How to Build a Block Paving Patio

How to Build a Block Paving Patio

Building a Block Paving or Natural Stone Patio

Building a block paving or natural stone patio…or a walkway.. can be a functional and beautiful addition to your backyard landscape, and with proper planning, attention to detail and a little hard work, you can achieve a long-lasting result, regardless of your skill level and experience. Begin by marking the outside dimensions of the project area. Then, excavate to a depth of four to seven inches, with a shovel. Allow for two to four inches of a compactible underlayment base, 1 to 2 inches of block paving sand for leveling and the width of the paver. Then install edge restraints. Edge restraints are required to stabilize the block paving and prevent settling and shifting over top. Edges should be set to allow for proper drainage, away from structures, and should slope evenly away from structures. One-quarter inch for every twelve feet is sufficient to allow for rain run-off. Evenly spread 2 to 4 inches of QUIKRETE All-Purpose Gravel into the excavated area.

Preparing the Block Paving Base

Then, level the gravel. Using a tamper, compact the gravel base. Spread 1 to 2 inches of QUIKRETE Patio block paving Sand over the compacted base. The block paving Sand will act as a leveling bed that the block paving will rest in. Use a two by four and a one by one to construct a screed to level the paver sand to a consistent depth, equal to the width of the paver. Then, screed the sand smooth, removing the excess sand in front of the screen and adding additional sand, behind the screed, as necessary. This will take several passes. Once your base is level, use stakes and a string for a straight edge, to align the paver rows. Starting in a corner, lay the pavers outward, maintaining a consistent joint width between each paver. Then, tap and level the pavers in place with a rubber mallet. Check to make sure your pavers are square and level, on a regular basis. Now that the pavers are in position, the joints must be filled with sand to hold the pavers in place. Jointing Sand and  Polymeric Jointing Sand are formulated with special dry polymer resin binders and are designed to lock pavers in place. Powerloc Jointing Sand can be used for paver joint widths up to 1/2 inch. For larger joints, up to two inches wide, and for use with natural stone, HardScapes Polymeric Sand is recommended. Simply sweep the polymeric sand into the joints with a broom and remove any excess sand from the paver’s surface.

Finishing the Block Paving Project

Make sure the pavers are clean and dry, before application. Then, apply a general fine water mist to the fill joints, flooding the surfaces of the pavers and allowing the water to saturate the sand filled joints. Dampen hourly, at regular intervals, for three hours after placement. Be sure to avoid flooding the sand onto the block paving surface. The joints will harden as they dry, usually over a period of several days, depending on temperature and humidity, creating a firm, durable block paving joint. Once hardened, Polymeric Jointing Sand will prevent errosion insects and weed growth. The amount of jointing sand you will need varies based on the joint width and paver thickness. A 1/2 inch joint will typically require about five bags per 100 square feet of paver area and two-inch joints will require up to 13 bags per 100 square feet.  Polymer resins are temperature-sensitive so temperatures should remain over 35 degrees F for a 12 hour period, after application.

As found on Youtube

If you need block paving Click Here and contact us