Journal of Materials and Engineering Structures
Volume 7, Numéro 4, Pages 525-549
2020-12-30

Contributions Of Concrete Recycling Technology Toward Sustainable Development: Standards And Technologies Related To Recycled Aggregate Concrete In Japan



Authors : Dosho Yasuhiro .

Abstract

Concrete is durable and can last for centuries. The waste from demolished concrete structures can be reused to reduce the environmental burden during their life cycle and ensure economic use of the construction resources. This study aims to improve the use of recycled aggregates prepared using the aggregate replacement method, effectively reducing both the environmental burden and costs associated with concrete waste. A high-value recycling method should be developed for concrete waste that offers improvements in terms of resource diversion and environmental preservation. New uses of concrete waste should be sought to counter the expected increase in the production of concrete waste with newer construction projects. Concrete waste contains harmful trace elements due to the use of cement, such as hexavalent chromium and lead. The most promising alternative materials are recycled aggregate concrete prepared using the aggregate replacement method, the uses of which are confined to concrete prepared from original mortar and/or original cement paste that contain toxic substances such as hexavalent chromium. The results of this study provide evidence for the effectiveness of using low-quality recycled aggregate concrete, such as of Class L, specified in the Japanese industrial standard (JIS) directive (JIS A 5023).

Keywords

Low-quality recycled aggregate concrete; Aggregate replacement method; Japanese industrial standard

Les articles similaires

Dissemination Of Technic For Concrete Using Low-quality Recycled Aggregate To Achieve A Sustainable Environment: Examination On Design Method And Validity Of Recycled Aggregate Concrete

Dosho Yasuhiro . 
pages 395-402.

Effect Of Coarse Recycled Concrete Aggregate On The Microstructural And Durability Properties Of Self Compacting Concrete

Kumar Dinesh .  Rao V.v.l. Kanta .  Lakshmy P. . 
pages 155-166.

Effect Of Surface Treatment Of Recycled Concrete Aggregate By Cement -silica Fume Slurry On Compressive Strength Of Concrete

Nguyen Ho Anh Thu .  Han Dinh Nguyen Ngoc .  Bui Phuong Trinh . 
pages 591-596.

Production Of Eco-friendly Self-compacting Concrete With Recycled Concrete Aggregate

Djelloul Omar Kouider .  Tahenni Touhami . 
pages 263-272.

Aggregate Packing Density Approach For Sustainable Scc Using Un-processed Coarse Recycled Concrete Aggregates

Kumar Dinesh .  Kanta Rao V.v.l .  Lakshmy P. . 
pages 233-244.

Formats de citation