Abstract
In this paper, the results of an experimental program on studying the use of a carbonation process to enhance the properties of recycled aggregates are presented. Hardened concretes prepared by using different water-to-cement ratios in the laboratory, were crushed to produce recycled aggregates with different particle sizes. Before and after the laboratory carbonation process, the physical properties of the recycled aggregate, including water absorption and density were determined. The extent of CO2curing of the recycled aggregate was quantified by assessing the carbonation percentage of the aggregates. Carbonation resulted in reduction in water absorption values and increase in density and these showed that the properties of recycled aggregate were improved. The factors influencing the CO2curing process, including curing time, particle size and moisture contents of the recycled aggregate, were investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 3-7 |
| Number of pages | 5 |
| Journal | Construction and Building Materials |
| Volume | 67 |
| DOIs | |
| Publication status | Published - 1 Jan 2014 |
Keywords
- CO curing 2
- Improvement
- Properties
- Recycled aggregate
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- General Materials Science