SIT(2017) are undergraduate students and are participating in the research activities of our team. They are working closely with Ph.D and master students. During their project, they will explore the culture of research and discover a variety of experimental techniques. The idea is to give them the opportunity to gain some sort of research experience.  


Research topics:
Artificial Aggregate Made of Waste Concrete; High Temperature of CO2 Curing Concrete Block

Summery of SIT project:
As an important part of construction waste, waste concrete has received much attention for its handling and resource utilization. After years of exploration, the recycling level of waste concrete has been greatly improved, but the recycled fine powder produced during the crushing process of abandoned concrete has not been effectively utilized.
Through interviews with relevant government departments, enterprises and social organizations in the waste concrete treatment and resource utilization of Changsha City, we will understand the sources, treatment methods and resource utilization status and related policies of waste concrete in Changsha City. The annual production of waste concrete in the year and the next three years, and the problems in the process of resource utilization of waste concrete are analyzed. In combination with the problem that the regenerated fine powder could not be effectively utilized, the research idea of ​​preparing artificial aggregate based on granulation and carbonization process to recover waste was proposed, and the artificial aggregate was prepared by rotary disc granulator, and in natural conditions and carbonization conditions respectively. Under the maintenance, study the effects of different mechanical parameters, curing methods, cement content on the bulk density, compressive strength and other properties of artificial aggregate.


Our SIT(2018) team is made up of 5 students, Yin Liu,bo Liu, Shijin Chen, Jiacheng Shen and Zijie Lin.This project began in 2018 and is expected to end it in the second half of 2019.
They are currently searching about new type cement made from coal gangue, which aims to reduce carbon emissions in cement preparation and  utilize the waste of coal production. Now, they already have conducted a series of experiments and obtained relevant data.



They are currently working on the following research topics:
Artificial Aggregate Made of Waste Concrete
High Temperature of CO2 Curing Concrete Block