On May 14, Professor zhou chunsheng from of Harbin Institute Technology and Dr. Wang zhindi from China general institute of building materials attended a symposium of at Limecho meeting room, The potential application of nuclear magnetic resonance in building materials such as gray mortar and the feasibility of new technologies and instruments were discussed in the symposium. It was agreed that hat nuclear magnetic resonance technology has great application prospect in monitoring the water absorption process and pore dynamics of cement materials. In addition, the application of unilateral magnetic resonance instrument and desktop chemical spectrum analysis instrument was also introduced.Harbin Institute of Technology and China general institute of building materials,reached the initial cooperation intention and future training after the seminar.