Use of Recycled Aggregates in Riigid Pavement Construction
Tomme: LVII (LXI) Fascicle: 2 | 2011
Pages: 69-80
Abstract text:
The paper presents the actual stage of analysis and laboratory studies, undertaken in the frame of postdoctoral program “Develop and Support Multidisciplinary Postdoctoral Programs in Primordial Technical Areas of National Strategy of the Research–Development–Innovation” 4D-POSTDOC, aiming to produce recycled aggregates with physical-mechanical characteristics suitable for use in rigid pavement construction. Recycled aggregates under investigation are obtained by crushing of cement concrete from the demolition of buildings in Iaşi municipality. The main objective of the research is to achieve a higher economic value of the cement concrete resulted from demolitions by recycling and use in the construction of conventional cement concrete pavements (PCC – plain cement concrete) and roller compacted concrete pavements (RCC). An important benefit resulting by using recycled aggregates in pavement engineering is the reduction of the impact of construction works on the environment by both limiting the exploitation of natural aggregates and the use of landfill construction and demolition wastes. Finally, a technical evaluation of the investigated recycled aggregates quality, in accordance with existing standards and norms, will be considered.
Key Words:
construction and demolition wastes; cement concrete recy-cling; recycled aggregates; laboratory studies; rigid pavements.
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