ELECTROMAGNETIC SHIELD METHOD MAKING USE OF ELECTROMAGNETIC SHIELD CONCRETE AND ELECTROMAGNETIC SHIELD WALL

摘要

PROBLEM TO BE SOLVED: To provide an electromagnetic shield method making use of an electromagnetic shield concrete obtaining sufficient electromagnetic shield performance at a joint part and an electromagnetic shield wall. SOLUTION: A precast concrete slab 20 mixed with a radio attenuating dielectric is formed. A plurality of PC slabs 20 are arranged at an interval of a joint 21 with a predetermined width (d) to form a wall surface. A conductive coating 27 is mounted on the surface of an elastic string-like sealing compound 26 having an outside diameter larger than the width (d) of the joint 21 to form an elastic joint shielding material 25. The elastic joint shielding material 25 is pressed into the joint 21 to prevent the wall surface from the passage of an electromagnetic wave to make the wall surface as an electromagnetic shield wall. The elastic stringy sealing compound 26 can be produced of the same material as that of a back-up material for preventing a sealing compound from flowing into the joint 21 or a constituent material of a gasket material of the joint 21. COPYRIGHT: (C)2004,JPO