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Current Developments in Recycled Concrete

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (15 April 2022) | Viewed by 5316

Special Issue Editors


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Guest Editor
College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, China
Interests: building energy saving system and application technology; high performance concrete; innovative building materials

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Guest Editor
College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
Interests: life-cycle assessmemt; low-carbon cement; strain-hardening composites
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

After the demolition of old roads and buildings, the removed concrete is often considered worthless and disposed of as demolition waste. Due to the environmental and resource concerns, the effective employment of recycled aggregates in concrete preparation has been a focus in the academic and industrial circles, as natural aggregates cannot be reproduced in the short term. Therefore, in using the waste concrete as recycled aggregate, in addition to addressing the resource issue, the land will also be spared the disposal of waste concrete. However, some mechanical and durability issues occur when recycled aggregates are used for the production of concrete. Thus, numerous enhancement methods for recycled concrete aggregates have been proposed, and have been suggested for use in a number of applications and scenarios, but still more work is required to promote the use of recycled concrete in practice.

Therefore, we propose a Special Issue of Applied Science, addressing topics including but not limited to those shown below:

  • Microstructural properties of recycled concrete.
  • Long-term durability of recycled concrete.
  • New enhancement approaches for the improved performance of recycled concrete.
  • Performance of recycled concrete in a marine environment.
  • Recycled concrete used in different applications (e.g., highways, housing).
  • Field investigation of recycled concrete.
  • Recycled concrete-steel structures.
  • Life cycle assessment of recycled concrete.

Prof. Xiaoqian Qian
Dr. Shaoqin Ruan
Guest Editor

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Keywords

  • microstructural properties
  • durability
  • application
  • performance enhancement
  • life cycle assessment

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Published Papers (1 paper)

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Research

15 pages, 2999 KiB  
Article
Effect of Aggregate Size on Recycled Aggregate Concrete under Equivalent Mortar Volume Mix Design
by Haneol Jang, Jeonghyun Kim and Alena Sicakova
Appl. Sci. 2021, 11(23), 11274; https://doi.org/10.3390/app112311274 - 28 Nov 2021
Cited by 29 | Viewed by 4675
Abstract
In this paper, the effect of the original aggregate size of the recycled aggregate on the mechanical properties of the recycled aggregate concrete was evaluated. A series of concretes were produced in which natural aggregates, recycled aggregates, and original aggregates in recycled aggregates [...] Read more.
In this paper, the effect of the original aggregate size of the recycled aggregate on the mechanical properties of the recycled aggregate concrete was evaluated. A series of concretes were produced in which natural aggregates, recycled aggregates, and original aggregates in recycled aggregates were matched for a single particle size distribution curve. The replacement levels of recycled aggregate were 25% and 50%, and equivalent mortar volume mix design was applied for recycled aggregate concrete. The results show that the mechanical strength of recycled aggregate concrete increases with increasing original aggregate size. This effect was observed to be greater in concrete using recycled aggregate with a high residual mortar content. Full article
(This article belongs to the Special Issue Current Developments in Recycled Concrete)
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