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OPERATIONAL EFFICIENCY


Jad Mansour Salame, of CCL, the specialist in engineered solutions


for structures, discusses the specialist flooring requirements for very narrow aisle (VNA) warehouses and how these can be met.


The warehousing and logistics sector has grown exponentially around the world over the past 20 years. Rather than maximising the footprint of the warehouse, to optimise storage space on site, the trend is for maximising the available space within the facility. This usually means the installation of VNA racking systems, which utilise the full height of the building with minimal space lost to aisles. These VNA warehouses rely on the smooth operation of specialist vehicles to navigate between stock keeping units (SKUs).


For VNA layouts to be viable, the floor must comply with DM (defined movement) flatness specifications. This requires a flooring specification that can be precision-levelled within an exacting tolerance. The floor must also provide a seamless, crack-free surface to allow specialist equipment to move smoothly and efficiently through the aisles.


SURFACE SYSTEM CCL’s SURFACE jointless flooring system has been used to help deliver these advanced warehousing and logistics environments as part of both new-build and refurbishment projects. Low maintenance and able to cope with heavy loads, the floor is custom-designed by CCL’s experts in a process that includes geotechnical engineering and preparation of the substrate using laser-controlled levelling devices. The use of a laser screed in the slab construction process then provides accurate distribution of the concrete, resulting in an ultra-flat and level floor surface.


The system can be specified simply as a joint-free, crack-free system; alternatively, additional benefits of laser screeding and specialist polishing can be added to the design process to meet the project’s specific needs. All processes involved in installing any CCL SURFACE floor can be applied to a slab on grade construction or refurbishment of an existing floor with an overlay.


JOINTLESS AND CRACK-FREE Joints in a concrete floor create an impediment for the smooth operation of sensitive warehouse equipment and are the most vulnerable areas in the flooring structure.


To avoid weak spots, productivity issues and onerous maintenance, CCL’s SURFACE system is cast as a single monolithic slab, making it completely joint-free. Thanks to meticulous preparation of the subgrade surface and positioning and stressing of the post-tensioned tendons to meet the specific requirements of the project, the system also provides a crack-free solution, leveraging the inherent crack-resistance benefits of post-tensioned concrete. As a result, the warehouse operator can be confident of smooth vehicle movements, reduced floor maintenance and an extended service life.


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PERFECTLY FLAT AND


PRECISION POLISHED Precision flatness can only be delivered using specialist laser screed equipment, operated by an experienced team. CCL’s equipment can cover up to 2500m2


of floor per day, making


installation of a precision levelled floor fast and accurate, even for buildings with a large footprint.


Specialist polishing techniques can be specified as part of the SURFACE flooring installation to provide a dust-proof, abrasion-resistant and resilient finish, without the need for any sealants or coatings, which can sometimes peel or delaminate. This provides an ideal ‘clean’ environment for a number of specialist warehouse applications, such as facilities storing ‘white glove’, pharmaceutical or organic items, for example. It also offers a hardwearing and abrasion- resistant solution to ensure resilience from constant use by forklifts and automated equipment.


STRONG AND SEAMLESS As the specialist demands on our built environment become increasingly prescriptive, flooring systems need to respond with flexible solutions that can be tailored to meet the needs of equipment, regulatory requirements and end users. The warehousing and logistics sector is just one industry that is benefitting from flooring technology that leverages the strength and durability of post-tensioned concrete, while providing a seamless, low-maintenance floor suitable for VNA layouts and vehicles.


www.cclint.com SCREEDS, RESINS & COATINGS | 19


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