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Improvement of the sustainability profile of precast concrete structures

Optimizing production and mix design


The company Prefabricados Uniblok S.L.U. (Prefabricated Uniblok S.L.U.) is a company from the Ormazabal Group whose main activity is to offer integral solutions to the Medium Voltage Electrical Distribution. Among these activities, they provide turnkey solutions, with transformers substations placed in precast/prefabricated concrete containers/enclosures. Uniblok produces these containers/enclosures in a modern plant located near Madrid, using modern technology. During the last years, Uniblok has tackled improving the sustainability profile of the concrete containers/enclosures, introducing several changes in the mix design and the production procedure on a performance-based requirements scheme that includes long-term durability issues. This paper summarises the improvements achieved due to a joint effort made by Uniblok S.L.U. and the CISDEM (Research Centre for Safety and Durability of Materials and Structures – CSIC – UPM) during the last 6 years. The results obtained confirm that the sustainability profile of the precast/prefabricated concrete containers/enclosures has significantly improved due to research and innovation.

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 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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