The microorganism index, physical and chemical property such as the pH value, water content and
organic matter of silt around pier in the typical area of yellow river are determined. These get ready to
research the microorganism corrosion of pier in the silt of the typical area of yellow river and have very
important theoretical significance and realistic meaning for researching systematically the
microorganism corrosion of pier in the silt of the typical area of yellow river.
Microbial corrosion of reinforce concrete structure is a new branch of learning. This branch deals with civil
engineering , environment engineering, biology, chemistry, materials science and so on and is a interdisciplinary
area. Research progress of the causes, research methods and contents of microbial corrosion of reinforced concrete
structure is described. The research in the field is just beginning and concerted effort is needed to go further into the
mechanism of reinforce concrete structure and assess the security and natural life of reinforce concrete structure
under the special condition and put forward the protective methods.