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Polish experiences with manhole structures

‘Relief rings’ – myths and facts


So-called ‘relief rings’ have been available for some years now on the Polish concrete manhole market. Among planners, building contractors and supervisory authorities, however, there are just as many opponents as there are proponents of the use of such elements. The concept of the relief rings is that the vertical traffic loads are transmitted to the soil around the manhole, thus completely relieving the manhole construction.

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ZPB KaczmareK sp. z o.o. S.K.A.
Folwark 1, 63-900 Rawicz, Poland
T +48 65 5467140, F +48 65 546 1855
Rawicz@ZPBKaczmareK.pl
www.ZPBKaczmareK.pl

CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 12 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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