4 How To Install Your Cambridge Pavingstones System Step 1. Preparation: Sketch a diagram of area to be paved. Square off a 90-degree corner. Set stakes for outside perimeters 6 inches away from area. Establish finished height and slope by setting leveled string lines. Allow 1-inch drop every 8 feet at sides for water runoff. Step 2. Excavation: Excavate (7 1 /2 inches for patios and walkways / 11 1 /4 inches for driveways). Step 3. Base: Fill area with quarry process gravel (4 inches for patios and walkways / 8 inches for driveways). Flatten, compact and slope. Step 4. Edging: Install Cambridge Curbstone or PVC restraints to prevent spreading. Step 5. Placing (Screeding) Sand: Add coarse C-33 sand and smooth out to a uniform 1 inch. Step 6. Pavers: Place Cambridge Pavingstones on the smooth sand in the desired pattern making sure joint lines are straight. A built-in spacer bar assures consistent joint width. PVC EDGE CAMBRIDGE PAVINGSTONES COARSE SAND AGGREGATE BASE COMPACTED SOIL Step 7. Cutting: Using a stone cutter or masonry saw, cut pavers where necessary to fit. Step 8. Compacting: With two passes of a plate compactor, seat the pavers by forcing sand up into the joints. Step 9. Sweeping/Final Compaction: Sweep additional sand into joints, compact again and repeat until all joints are filled. For more information, go to the Professional Contractors section online at, where you will find Technical Specifications, Construction Details, ASTM Standards, additional installation instructions and more for pavingstones and walls. WALLSTONE 3/4 CLEAN BACKFILL LEVELING COURSE How To Install Your Cambridge Segmental Retaining Wall System General Base Preparation For Garden Walls Up To 36 inches Step 1. Excavation: Dig a trench roughly 8 inches deep and 12 inches wide. Firmly compact until bottom is fairly level. Add 6 inches of 3/4-inch clean gravel and compact again. Step 2. Leveling Course: Add 1 inch of coarse C-33 sand into bottom of trench. Step 3. First Layer: Place Cambridge wallstones units in trench touching each other (textured face outward on single-face wallstones). Keep all wallstones level in all directions. For straight walls, also use a string line. Step 4. Additional Layers: Stack staggered wallstones on top stepping each new layer back approximately 3/4 inch. In this type of gravity wall installation, weight and setback of the wallstones provide resistance. Backfill with 3/4 inch of clean granular fill and compact as each layer is completed. To prevent any granular fill or soil from passing through the system, a landscaping fabric can be placed behind the wallstones. Add cap stones if desired. General Information For Cambridge Wall Systems The Base An important part of any retaining wall For walls over 36 inches, an engineer may be required. Check with local officials for the regulations that cover the wall you will be building before beginning wall projects.
TIPS & TECHNIQUES General Base Preparation For Walls Over 36 Inches (Not Including Engineered Walls) Each wall system that Cambridge offers has its own specific installation procedures. Following is a brief overview. Be sure to visit cambridgepavers.com for specifics. For walls over 3 feet, an engineer may be required. Step 1: To start your layout, place stakes to represent the location of the front of the wall. Using a string line or paint, mark out the entire length. A garden hose is an excellent tool to use when laying out curved walls. See Figure 1. Figure 1 Figure 2 Figure 3 5 Step 2: Excavate the area by removing all surface vegetation and organic materials from the area. These cannot be used as backfill material. See Figure 2. If reinforcement is needed, excavate behind the wall to accommodate the design length of the geogrid. Refer to your approved plans for exact length. Starting at the lowest point, dig a base trench 24 inches wide and the length of the wall. The depth of the trench will be 6 inches plus an additional inch for each foot of wall height for the amount or buried wallstones that are needed. Step 3: Compact the base trench making a minimum of two passes with a walk behind plate compactor. See Figure 3. Base soils at the bottom of the base trench must be firm and solid. If the soils are made up of heavy clay or wet soils, or the areas have been previously excavated, remove this material and replace with a granular material. Compact in 4-inch lifts or less. A drainpipe is required for any reinforced wall or any wall over 4 feet tall. Place the drainpipe at the lowest possible point toward the back of the trench and vent to daylight every 50 feet. Place a minimum of 6 inches of 3/4-inch clean stone in the base trench and rake smooth. Compact the 3/4-inch clean stone making a minimum of two passes with a plate compactor. Check the entire length for level and adjust as needed. See Figure 4. Step 4: Place wallstones on the 3/4-inch clean stone base material near the front of the base trench. See Figure 5. Check and adjust each wallstone for level and alignment as it is installed. Check the wallstones for level frequently from side-to-side and front-to-back. Verify the proper position of all the wallstones by examining a string line across the back of the wallstones. See Figure 6. Figure 4 Figure 5 Figure 6 Plate Compactor Make minor adjustments by tapping the wallstones with a rubber mallet or by placing up to 1/2 inch of coarse sand under the wallstones. Irregularities in the base course become larger as the wall stacks up. Pay careful attention to a straight and level base. Sloping Grade Start Here CAMBRIDGE DESIGNSCAPING HANDBOOK
6 Without ArmorTec Actual 6 x 9 Cambridge Pavingstone Manufactured Without ArmorTec Installed In A Residential Driveway In November, 2006 (Photo Taken January, 2010) Since the beginning, Cambridge Pavingstones were produced using our unique mix design, ArmorTec. Around 1998, you our valued contractor-customers and the homeowners you serve, expressed an interest in concrete pavers with an antiqued, distressed surface as found in natural stone or Belgian block. In response, we introduced The Renaissance Collection. To best replicate the characteristics you asked for, we chose a very coarse mix design for our newest pavingstone collection much different from the ArmorTec collections because the surfaces of these pavers did not have the ArmorTec face mix and included large aggregate (stones). In 2007, we listened again when you insisted that the Renaissance Collection also be made with ArmorTec because of the lasting beauty and many other proven advantages it assured. In March of 2007, the Cambridge Research & Development Team met the challenge and began manufacturing every Cambridge Pavingstone with the added value of ArmorTec including Renaissance, without losing its distinctive aged appearance. Shown below is a Cambridge Pavingstone that was made without ArmorTec, installed in 2006 and subjected to snow plowing, de-icing salts and normal wear. Cambridge Pavingstones without ArmorTec will look faded as the sand, cement and color wear off. Small holes (voids) seen on the surfaces of Cambridge Pavingstones without ArmorTec detract from the appearance of surrounding surface areas and contribute further to their worn look. Stone particles in various sizes become exposed on the surfaces of Cambridge Pavingstones without ArmorTec leaving them rough and worn-looking.
SECTION 1 / ARMORTEC ADVANTAGE 7 With ArmorTec Actual 6 x 9 Cambridge Pavingstone Manufactured With ArmorTec Installed In Another Residential Driveway In June, 2006 (Photo Taken January, 2010) The lasting beauty of a Cambridge Pavingstone with ArmorTec after many years of outstanding performance is field proven over and over again through examples such as the one from The KingsCourt Collection shown below. Premium ArmorTec pure-pigmented color that will not fade along with our advanced ArmorTec mix technology are intensified. Color serves no purpose throughout the paver. Don t be fooled by products that claim it does. Be assured of all the added advantages of choosing Cambridge without having to pay more for them. Only Cambridge has ArmorTec. The proof is in the paver! As a professional contractor, a large part of your current and future business depends on referrals. Shown below is a Cambridge Pavingstone with ArmorTec, which was also installed in 2006 and subjected to snow plowing, de-icing salts and normal wear. Insist on ArmorTec, only from Cambridge, to assure continued referrals and the future growth of your business. In manufacturing Cambridge Pavingstones, a proven formula consisting of only super-fine sand granules and granite, one of the worlds hardest rocks (WITHOUT ANY small and large stone particles) and cement of the highest quality are used in the unique ArmorTec mix design. The purest pigmented colors in Cambridge Pavingstones with ArmorTec are concentrated where it counts on the surface that shows when the pavers are installed. ArmorTec is a registered trademark of Cambridge Pavers Inc. CAMBRIDGE DESIGNSCAPING HANDBOOK
8 THE SHERWOOD COLLECTION SHAPES LEDGESTONE TM 3 PC. DESIGN KIT Sizes: 13 3 /16 x 8 3 /4 8 3 /4 x 8 3 /4 8 3 /4 x 4 5 /16 Note: Patterns shown are also suitable for Ledgestone 9 x 9, 9 x 18 and 18 x 18 from The Renaissance Collection. OTHER LEDGESTONE DESIGN KITS PATTERN DSL-001: Ledgestone 3-Pc. Design Kit Random PATTERN DSL-002: Ledgestone 3-Pc. Design Kit Staggered Running Bond The Ledgestone 3-Pc. Design Kit The kit is a combination of three extra-large, square and rectangular, modular shapes with prominent, bluestone-like clefts on their surfaces. The sizes of the pavingstones in the kit are 13 3/16 x 8 3/4, 8 3/4 x 8 3/4, and 8 3/4 x 4 5/16 inches respectively. The Ledgestone Individual Series (See Next Page) Four additional shapes may be installed in any combination with 3 or 4 shapes being utilized. These individual sizes are 4 1/2 x 9, 9 x 9, 9 x 18 and 18 x 18 and are sold separately. See next page. They can each be installed independently, with the Ledgestone 3-Pc. Design Kit, or for borders. All of the pavingstones in the Ledgestone Individual Series are modular shapes and can be installed together. Examples: Ledgestone 3-Pc. Design Kit with 18 x 18 Ledgestone 3-Pc. Design Kit with 9 x 18 Ledgestone 3-Pc. Design Kit with 9 x 18 and 18 x 18 Ledgestone 3-Pc. Design Kit with extra 9 x 9 Several patterns are also shown on the next page using one, two, or three pieces in the Ledgestone Individual Series together (9 x 9, 9 x 18, and 18 x 18). However, with the inclusion of Ledgestone 3-Pc. Design Kit, the design possibilities are ENDLESS. LEDGESTONE XL See Page 10 LEDGESTONE CIRCLE DESIGN KIT See Page 11 Also Look At RENAISSANCE V 5-PC DESIGN KIT See Page 22