CSCEC China West Construction Group New Material Technology Co., Ltd. (hereinafter referred to as "CSCEC New Material") has successfully developed a special admixture for marine ultra-high performance concrete. On July 11, added with this admixture, 150m cast-in-place piles of Hangzhou Bay Bridge has been poured, marking a new breakthrough in the construction of high-speed railway sea crossing bridges.

To ensure product supply and high-quality and accurate services for the project, CSCEC New Materia planned in advance of raw material investigation, admixture testing work, technical service plan, and supply guarantee plan. To ensure the successful pouring of deep-sea cast-in-place piles at once, technical personnel worked on the project site. During this time, they organized multiple verifications of admixture adaptability, concrete mix ratio, and full set of mix ratio pilot tests to ensure the stability of various concrete indicators.

        The Hangzhou Bay Cross sea Railway Bridge is located in Zhejiang Province, with a total length of about 29.2 kilometers. It is a landmark project on the Nantong–Suzhou–Jiaxing–Ningbo high-speed railway, an important part of the Coastal corridor of the national high-speed railway, and the longest cross sea railway bridge with the highest construction standard in the world.