The research of high ductility concrete began after Wenchuan earthquake. Professor Deng Mingke looked at the buildings destroyed after the disaster and came up with an idea. He devoted himself to the research of high ductility concrete, hoping to develop a kind of flexible concrete, so as to avoid many buildings from being damaged. After more than ten years of tempering, we finally made a breakthrough. The team kept experimenting day after day and published one scientific research paper after another to make this technology more mature. At present, the high-ductility concrete technology has been successfully applied to building reinforcement, building construction structure and other aspects, and the team has obtained more than 70 related national patents. Appraised by Shaanxi Science and Technology Department, it is considered that this technology has reached the international leading level.
The protagonist of the high ductility concrete test is the scale simulation of Yunnan characteristic building Diaojiaolou (commonly known as Dailou). When the shaking table input magnitude is 9, Dai Mansion made of high ductility concrete still stands, which strongly proves that high ductility concrete can significantly improve the integrity and seismic capacity of concrete structures.
Compared with ordinary concrete, high ductility concrete has higher strength, toughness, crack resistance and damage resistance, and its tensile performance is 200 times that of ordinary concrete, which is why it is called bendable concrete. The team suggested that only 1.5 cm of high ductility concrete material was needed to complete the house reconstruction after the wall-building process, which avoided the damage of the house in the earthquake disaster and saved the construction period. This study is really good for our life, and I hope there will be more and more such studies in the future.