期刊论文详细信息
RILEM Technical Letters
Challenges in material recycling for postwar reconstruction
article
Viacheslav Troian1  Volodymyr Gots2  Emmanuel Keita3  Nicolas Roussel3  Ueli Angst1  Robert J.Flatt1 
[1] Department of Civil, Environmental and Geomatic Engineering, Institute for Building Materials;Department of Technology of Building Structures and Products, Kyiv National University of Construction and Architecture;Navier Laboratory, Gustave Eiffel University
关键词: Concrete;    Recycling;    Aggregates;    Porosity;    Adsorption;   
DOI  :  10.21809/rilemtechlett.2022.171
学科分类:社会科学、人文和艺术(综合)
来源: RILEM Publications SARL
PDF
【 摘 要 】

Besides the fact that concrete recycling allows to avoid landfills disposal and contributes to a closed-cycle economy, such option may be very much in demand in war struck regions such as Ukraine, which after the end of the war, are faced with the problem of rebuilding and reconstructing. Beyond this emergency, even in peacetime extensive parts of the building stock will sooner or later need to be replaced and concrete recycling is called to play an increasing role there. However, depending on the technology and degree to which aggregates are recycled, concrete may be characterized by poor workability, reduced mechanical properties, increased shrinkage and reduced durability. This deterioration in the properties of recycled concrete is usually attributed to the characteristics of the old cement mortar remaining on the surface of the recycled aggregates, which is best considered as an additional volume of hardened cement paste with fine aggregate and additional porosity. This article attempts to underline how such key concepts help frame the current state of knowledge about concrete recycling, understand the implications of existing regulations, in order to define pragmatic and efficient routes for broadening the use of concrete recycling in war struck regions, with specific examples regarding Ukraine.

【 授权许可】

CC BY   

【 预 览 】
附件列表
Files Size Format View
RO202307120003011ZK.pdf 886KB PDF download
  文献评价指标  
  下载次数:4次 浏览次数:1次