Effect of Aggregate Size on Recycled Aggregate Concrete under Equivalent Mortar Volume Mix Design

Applied Sciences

Haneol Jang¹  Alena Sicakova²  Jeonghyun Kim³ 

[1] Architecture Office 1, Seoul Metro, Hyoryeong-ro 5, Seoul 06693, Korea;Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, 042 00 Kosice, Slovakia;Faculty of Civil Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;

关键词: recycled concrete aggregate;    original aggregate;    recycled aggregate concrete;    concrete mix design;    equivalent mortar volume;    aggregate size;   

DOI  :  10.3390/app112311274

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown