GRAVEL DRIVEWAY INSTALLATION USING CORE DRIVE AND CORE DRAINAGE CELLS SOLVE DAMP ISSUES

PROJECT BRIEF: SOLVE DAMP WALL & DRIVEWAY ISSUES The clients had severe damp issues on the exterior wall of the house. The driveway sloped toward the property and the area had no working drainage system in place. The clients wanted a free draining surface that would not require constant maintenance and could handle the frequent car use that was suitable for a baby stroller along with a solution to the rising damp problems they were experiencing. PRACTICAL SOLUTION: INSTALL CORE DRIVE + CORE DRAINAGE CELLS A trench was excavated alongside the wall and adjacent driveway. The trench was lined with heavy gauge Damp proof membrane. CORE drainage cells were wrapped in Core geotextile membrane and placed vertically within the trench leading to the existing rainwater downpipe. A connection was made to allow both the downpipe and drainage cells to use the existing drainage system. The dug material was put back into the ground and re-compacted. Drainage holes were punctured into the macadam and covered with Core non woven geotextile membrane to protect them. Coredrive 38-25R was laid over a sharp sand blinding and filled with a locally sourced 10/12mm angular gravel. ADVANTAGES: “EXCELLENT IN REMOVING OUR DAMP DRIVEWAY ISSUES” (MR & MRS CONNOR) Using a gravel stabilisation grid meant the existing surface could be utilized as part of the sub-base producing a significant cost saving and improving the environmental impact of the works.The porous surface allows water to flow through avoiding surface water build up maintaining a clean surface for pedestrians perfectly suitable for access by prams, pushchairs and DDA compliant if disabled access were required. The vertical cells have an immense flow rate allowing them to deal with surface and subsurface water relieving the hydrostatic pressure from the waterlogged ground immediately adjacent to the building. The surface is now flat, firm and puddle free without any damp issues.

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