A Conceptual Model for Designing Recycled Aggregate Concrete by Marco Pepe PDF

By Marco Pepe

ISBN-10: 3319264729

ISBN-13: 9783319264721

ISBN-10: 3319264737

ISBN-13: 9783319264738

This e-book stories at the actual and mechanical characterization of Recycled combination Concrete (RAC), produced via a partial-to-total alternative of normal aggregates with what were dubbed Recycled Concrete Aggregates (RCAs). It proposes a theoretical framework for realizing the relationships among RCAs and RCA, and for predicting the ensuing habit of RAC. The ebook demonstrates that during the case of RAC extra parameters need to be taken under consideration than with usual aggregates, because of the composite nature and better porosity of RCAs. by means of extending Abrams’ legislations for Recycled combination Concrete, it represents a primary step within the formula of a common version for predicting the houses of RAC. The theoretical strategy provided right here addresses a massive hole within the literature and is predicted to stimulate new study at the use of this extra sustainable type of concrete in structural applications.

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Extra resources for A Conceptual Model for Designing Recycled Aggregate Concrete for Structural Applications

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The homogenisation process was carried out by means of a so-called “cells process” (homogenising process per unit cell), in which the raw materials were distributed on a plastic sheet in different layers throughout the whole length of the sheet. Thus, the raw concrete particles are homogenously distributed over the length of the sheet, and, starting from the middle section, layers of raw materials are subdivided in several sections called “cells” (Fig. 18). br). During 48 4 Recycled Concrete Aggregates Fig.

The most important references were Commonwealth Scientific and Industrial Research Organisation (CSIRO 2002), and Concrete Institute of Australia Standards. Five types of recycled aggregates are identified and classified: Recycled Concrete Aggregate (RCA), Recycled Concrete and Masonry (RCM), Reclaimed Aggregate (RA), Reclaimed Asphalt Pavement (RAP) and Reclaimed Asphalt Aggregate (RAA). In this chapter only the first one will be taken into account, considering the present work’s purpose and also because, in Australia, RCA is the most common construction and demolition waste used in concrete production.

Springer International Publishing Switzerland 2015 M. 1 Recycled aggregates limitations (NTC 2008) Source of recycled material Concrete grade Percentage of utilization % Demolition of buildings (waste) Demolition of concrete and reinforced concrete C8/10 ≤C30/37 ≤C20/25 ≤C45/55 Parent concrete up to ≤30 up to up to up to From concrete >C45/55 100 60 15 5 However, the Superior Council of Public Works aims to define a new ordinance, according to Ministry of Economic Development, accepting the most recent knowledge achieved about recycled concrete performance.

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A Conceptual Model for Designing Recycled Aggregate Concrete for Structural Applications by Marco Pepe

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