Japan Prestressed Concrete Engineering Association
Abstract
[Extract] The JPCEA has been involved in the development of various draft standards and manuals related to prestressed concrete technology since 1994, through investigations and research conducted by the Prestressed Concrete Technology Standards Committee on the request of organizations related to prestressed concrete. Recently, the importance of the grouting has become a priority item due to factors such as defective grouting (improper filling) that has resulted in breaking of prestressing steel which can potentially cause serious damage. Hence, it became evident to review the importance of grouting in prestressed concrete structures. As a result, the Japan Prestressed Concrete Contractors Association took the initiative to conduct training courses and revised the ''Grout Construction Manual" in order to improve the grouting. Moreover, major revisions of overseas standards, advancements in the grouting materials and development of new products, innovative construction technologies etc., demanded the need for standardization of grout for prestressed concrete structures. As a result, the, Standards Committee for Grouting" was established by JPCEA in July 2003. The Committee consisted of a coordinating group and four working groups with the aim of producing a performance based standard which is the current trend worldwide. This publication titled '·Guidelines for Design and Construction of Grouting for Prestressed Concrete Structures" was a result of the activities of this standards committee
