Yongguang Railway

Background

The Yongguang Railway is a railway project located in the central-northern part of the Yunnan Plateau of China, running nearly with a total length of 127.232 kilometers. It is a key cooperation project between the state and Yunnan Province. After the railway is upgraded, it will only take one and a half hours to travel from Kunming to Yongren County at the Sichuan-Yunnan border. This is of great significance for promoting economic and social development along the line.

Project Challenge

Past high dosage of 8%-9%, and there is a serious issue with the sedimentation of the admixture. The rebound during the shotcrete construction is significant, and there is an irritating odor after the shotcrete construction. The strength of the core samples taken is not up to standard, with the 1-day strength only being 6.7 MPa, which does not meet the engineering requirements of being greater than 10 MPa.

Solution from ARIT

Using ART-SL15, compatibility tests were conducted with the cement on site, and the dosage of the flash setting admixture was determined to be 4%-5%. Additionally, due to the reduction in rebound, the construction progress was accelerated, and the engineering bureau was very satisfied.

Product from ARIT

ART-SL15

For detailed remixing formula, feel free to connect technician of ARIT.