Press release
Nutrition & Care
November 19, 2018

Evonik specialty chemicals facilitates construction under Belt and Road

Construction chemicals from Evonik has been successfully applied to the world's largest single span and single pylon cable stayed bridge, the Jinsha River Bridge in Tiger Leaping Gorge in Yunnan Province, China.

The Jinsha River Bridge sits along the Shangri-La Lijiang Expressway, which is located in a geologically complex terrain with high altitude, where earthquake happens frequently. In such a harsh environment, extremely high strength and improved durability is required for concretes. The ultra-high-performance concrete applied in the main tower has a pumping height of up to 150m, which is incredibly difficult for bridge construction process from technical wise.

Evonik SITREN AirVoid® products from Interface & Performance business line significantly improved the flowability of fresh concrete in this project by effective management of bubbles in concrete, which brought in unbelievable breakthrough in bridge construction process. In addition, SITREN AirVoid® plays an important role in optimizing interior pore structure of hardened concrete, thus providing enhanced performance guarantee for Jinsha River Bridge including long-term mechanical properties, structural safety and durability.

SITREN AirVoid® products are a benchmark in domestic construction market and are widely used in high-speed railways, expressway, bridges, dams, docks and various key projects or civil buildings. The successful application of Evonik construction specialties in the Jinsha River Bridge makes great contributions to “The Belt and Road Initiative” of the Yunnan province, which is defined as “the radiation centre linking South Asia and Southeast Asia”.

This information and all further technical advice are based on our present knowledge and experience. However, it implies no liability or other legal responsibility on our part, including with regard to existing third party intellectual property rights, especially patent rights. In particular, no warranty, whether express or implied, or guarantee of product properties in the legal sense is intended or implied. We reserve the right to make any changes according to technological progress or further developments. The customer is not released from the obligation to conduct careful inspection and testing of incoming goods. Performance of the product described herein should be verified besting, which should be carried out only by qualified experts in the sole responsibility of a customer.