Abstract: The present invention relates to the use of an additive which is an aqueous system of specific polyether silicones in clinker and cement preparation. The additive improves the grinding efficiency and also results in an improvement in the cured properties of cementitious compositions employing cement so produced.

Abstract: The invention established a business travel system based on the network platform to the public, making the internal management of travel agency become platform, and providing all-directions services according to different clients and needs. Its technical scheme as following: system including a database, a logging module, a client module by which a user can access the network platform to design and manage business travel scheme, a operator module by which an operator access the network platform to manage and trace the entire process. Wherein the client module further includes the journey basic information input module, everyday schedule input module, order form generating and quoting module and member list adding module. The operator module further includes a service activity adding module, an airline ticket confirming module, a hotel confirming module, a cicerone scheduling module, a local reception scheduling module and the third-time order form generating and quoting module.