In Nov. APAQ invited BASF experts: Dr. Zhao Ren, BASF R&D Center in Asia Pacific and Product Manager Zhou Xiao Liang, to give lecture to APAQ sales team on concrete admixture applications. On the seminar, special applications, efflorescence and concrete crack solutions were the main discussion topics. Through the seminar, APAQ sales people know more about the types of cement additives and their interaction fundamentals, the reason and types of cement based products cracks. Both of us benefited a lot through this technical communication meeting.