Masonry Magazine October 2012 Page. 18
PAVERS
Rain water flows in between the pavers, where it is stored in the voids between the aggregates beneath, and then seeps into the soil.
This includes how long a material should last and how much it will cost to maintain.
Both points have been addressed by recent installations of Pine Hall Brick permeable pavers, StormPave, which resembles a classic English-edge paver that's been installed across the United States for decades.
How it works
THE PAVERS work as part of a system: several layers of aggregates without fine particles, installed from largest to gravel-sized, are installed carefully and compacted after excavation. The pavers are placed atop that, and the smallest aggregates are swept into the joints, in place of the customary sand. When it rains, the water flows in between the pavers, where it is stored in the voids between the aggregates beneath, and then seeps into the soil.
The pavement system works, as was shown by how well actual installations in Maryland and North Carolina performed in heavy rainstorms, tropical storms and a hurricane.
Paver Innovation
Paver Collection, Decorative
Edge from Belgard
Belgard Hardscapes is offering both a new paver collection and a product for edging paver surfaces for the masonry industry.
Anglia Edger is a decorative option for edging paver surfaces that was released regionally in the Northeast, Midwest and West Coast regions in 2011. The Domino Paver Collection was specifically designed to provide a dimensional paver surface with reduced installation time and waste.
Since Domino Pavers come in a single shape that can be handled two at a time, less product handling and cutting are needed, resulting in an installation done in a fraction of the time of a three- or four-piece system. Domino Pavers offer the design flexibility of installing in a running bond, herringbone or basket weave pattern, and are an ideal surface for walkways, patios, pool decking and residential driveways.
Designed for edging driveways, patios, walkways and creating small planter walls, Anglia Edger offers the look of natural stone without the cost. Anglia features a chiseled finish that emulates hand-hewn stone and is tumbled to look distressed. Available in a variety of color choices and a number of different lengths for flexibility of design, the Anglia Edger is beveled on the ends to allow for creating both curves and angles.
The larger scale of the Anglia Edger makes it a cost-effective alternative to mortar-set granite and other natural stone edging, because there are fewer pieces to install and fewer joints. Anglia also can be used to create natural-form steps, because of its height and thickness. For more information visit www.belgard.biz.
In terms of lifecycle costs, clay brick pavers have an effective life of more than a century. Maintenance costs virtually nothing, other than vacuuming debris from between the pavers and replacing inexpensive aggregate stones from time to time. Officials in New Albany, Ohio, installed a StormPave street when they discovered it cost less than a traditional asphalt and storm drain installation, once maintenance costs were included.
In addition, new research has shown that a permeable clay brick paver installation works virtually anywhere. In Pine Hall Brick's home state of North Carolina, new research at North Carolina State University shows that permeable pavement can be used successfully to improve stormwater treatment in most soil types (including clay soils) as long as the paved areas are properly designed, installed and maintained.
When compared to asphalt or concrete, properly used permeable pavements can reduce the volume of stormwater discharged from developed areas by as much as 90 percent. This is important, since sediment carried by stormwater is the state's No. 1 source of water pollution.