INDUSTRIAL PAVING
Introduction
Hyson Cells paving is particularly suitable for use in ultra heavy duty yards such as container terminals and timber loading yards where there is heavy loading and much wheel turning and slewing.
References
(1) Transnamib container terminal - Windhoek
The Hyson system out-performed conventional industrial block paving on the same layerwork at Transnamib container terminal in Windhoek, Namibia.
The client ran out of Hyson Cells materials and completed the job with a small area of conventional industrial block paving. This serves as an ideal comparison.
Even though the blocks were used in a little used area they broke and failed in a matter of months.
In contrast the Hyson paving has been functioning for 6 years (as at 2010) without maintenance in the main traffic areas.
(2) Foskor plant – Richards Bay
The Hyson system has recently (2010) been installed at the Foskor plant in Richards Bay in extreme acid conditions in preference to the alternative of concrete panels on top of a heavy duty plastic membrane.
A graphic example
Container corner casting point loads
The static point loads under the comer-castors of the containers is primarily responsible for pavement disintegration, particularly when they are multi-stacked and stored back to back in long rows.
To test performance when subjected to these extreme point loads three containers were stacked upon each other generating a total mass of 90 tons. In order to ensure that no bearing support was provided by the beams between the comer castors, the lowest container was placed on 100mm square steel blocks which elevated the beams above the pavement and effectively generated two 45 ton point loads.
Results
The Hyson paving can support this point load but conventional blocks punch through.
At Transnamib the client performed the following test. Hyson Cells supported a 12m container but the conventional blocks punched through with only a 6m container.
The System Described:
The underlying material will generally be compacted using an impact roller onto which a layer is constructed and this will generally be compacted stabilized crusher run or dump rock. A levelling course of crusher run will then be laid followed by the patented Hyson Cells with their “bubble lock” interlocking system. These 150 or 200 mm deep Hyson Cells are filled with a professionally designed highly workable pumpable concrete, compacted and finished off with a surface finish to suit the client’s requirements.
Features and benefits
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Is impervious to water penetration even if the underlying layers settle. This also applies to pollutants.
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Is not rigid such as a concrete slab system which means that it does not crack and cause those steps that damage your equipment
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Is constructed from high strength concrete and will have a life span longer than other systems
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Is significantly cheaper
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Uses pumpable concrete filled Hyson Cells that are fully interlocking while being flexible enough to accommodate any settlement in the underlying layers
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Does not have expensive joints that cause endless problems
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Does not punch through as do paving blocks
- Will have a surface finish to suit the operator’s requirements
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Offers a smooth ride on a plane surface
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Is constructed without long delays
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Is designed by a world-renowned heavy duty pavement specialist who has done extensive research on the Hyson Cells and who has delivered award winning papers on the system internationally
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Has proved to perform exceedingly well in container terminals both in South Africa and in neighbouring countries
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Can be trafficked within days of construction
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