Recyclability of Concrete Pavement Incorporating High Volume of Fly Ash
AbstractRecyclable concrete pavement was made from fly ash and crushed limestone sand and gravel as aggregates so that the concrete pavement could be recycled to raw materials for cement production. With the aim to use as much fly ash as possible for the sustainable development of society, while achieving adequate strength development, pavement concrete having a cement-replacement ratio of 40% by mass was experimentally investigated, focusing on the strength development at an early age. Limestone powder was added to improve the early strength; flexural strength at two days reached 3.5 MPa, the minimum strength for traffic service in Japan. The matured fly ash concrete made with a cement content of 200 kg/m3 achieved a flexural strength almost equal to that of the control concrete without fly ash. Additionally, Portland cement made from the tested fly ash concrete was tested to confirm recyclability, with the cement quality meeting the Japanese classification of ordinary Portland cement. Limestone-based recyclable fly ash concrete pavement is, thus, a preferred material in terms of sustainability. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Yoshitake, I.; Ishida, T.; Fukumoto, S. Recyclability of Concrete Pavement Incorporating High Volume of Fly Ash. Materials 2015, 8, 5479-5489.
Yoshitake I, Ishida T, Fukumoto S. Recyclability of Concrete Pavement Incorporating High Volume of Fly Ash. Materials. 2015; 8(8):5479-5489.Chicago/Turabian Style
Yoshitake, Isamu; Ishida, Takeo; Fukumoto, Sunao. 2015. "Recyclability of Concrete Pavement Incorporating High Volume of Fly Ash." Materials 8, no. 8: 5479-5489.