"Liquid rubber" to make concrete and steel wall adhesive research projects have been overcome

Yichang, Hubei Gezhouba Group of 67-year-old retired engineer Su Chongzhou after 30 years of painstaking development of a "liquid polyurethane rubber," miraculously able to achieve the bonding of steel and stone. His technique has recently been granted national patents and patent technology by the international gold medal.

The patented technology from more than 40 years ago, Premier Zhou Enlai put forward a research subject. Early, the Tiananmen Square military parade held each year, the track-type tanks, armored vehicles on the marble pavement damage. In 1957, Premier Zhou Enlai proposed the development of a rubber track in the paste, so as to reduce the wear and tear. Shanghai Research Institute, a commitment to this issue, but no breakthrough.

In the early 1960s, the Soviet Union in Chongzhou Northwestern University chemistry student, teacher to listen to Premier Zhou raised the idea of the research projects. In 1972, Chong Zhou Su from the Xinjiang Research Institute to the Gezhouba Group, which specializes in concrete research. Since then, he began to consider "liquid rubber." Until retirement in 1998, have not come to the final outcome, but he did not give up, but do from their own laboratories, continue to study with great concentration. In February 2002, Su Chong Zhou's "liquid rubber" to be successful, and the State to declare the patent.

In June 2004, Geheyan Power Station in the ship lift aqueduct construction process, a substance needed to achieve concrete and steel wall of the underwater adhesive. Design Institute of the Yangtze River Water Resources Commission in a number of ways to collect at home and abroad, there was no feedback. Upon learning of Su Chong Zhou, a fraction of the initiative, developed their own "liquid polyurethane rubber" test, this finally solved the technical problems, to fill the gap at home and abroad.

China's roads, "Black Brush" used by all the asphalt is imported from the United States modified asphalt, the cost per kilometer of up to 140 million. Su Chong Zhou secretly determined to make use of the "liquid polyurethane rubber," the preparation of a paved road and replace imported materials. He nearly 10,000 more than a year after the trial and eventually developed the "road quickly at room temperature flexibility of concrete pavement." This concrete adhesion than its imports of modified asphalt than 5 coefficient, 2 million test track in good condition, "Marshall strength" to achieve 17.4 kN, which is far higher than the national standard of 7.4 kN.