Method of forming fireproof layers outside steel skeletons and beams

Abstract

Abstract STRUCTURES OR STRUCTURAL SHAPE FRAME MEMBERS, SUCH AS BEAMS, COLUMNS, AND PILLARS HAVING SPACED FLANGES JOINED BY CONNECTING WEBS FOR CONSTRUCTION USE, ARE ENCLOSED BY MOLDED PLATES MADE OF A FIRE-PROOF MATERIAL, SUCH AS ASBESTOS, CEMENT, VERMICULITE, PERLITE, GYPSUM, ROCK WOOL OR THE LIKE, FORMED INTO THE REQUIRED SHAPE. THE MOLDED PLATES ARE SECURED TO THE STRUCTURAL MEMBERS BY APPLYING A FIRE-PROOF ADHESIVE AGENT TO THE JOINT PORTIONS OF THE STRUCTURAL MEMBERS AND MOLDED PLATES AND ALSO BETWEEN THE MOLDED PLATES THEMSELVES SO THAT THE JOINT PORTIONS CAN BE COMBINED TOGETHER IN A BODY WHILE USING CLAMPS OR NAILS FOR TEMPORAY SUPPORT THEREBY FORMING FIRE-PROOF LAYERS ABOUT THE STRUCTURAL MEMBERS. FOR EXAMPLE, A FIRE-PROOF MATERIAL SUCH AS ASBESTOS OR THE LIKE IS RENDERED SUFFICIENTLY FIBER-OPEN AND A SUITABLE AMOUNT OF CEMENT, AS A BINDING AGENT, IS INCORPORATED IN THE ASBESTOS FIBERS THUS OPENED AND THE MIXTURE IS FED INTO A MOLD UNDER PRESSURE FOR CONSOLIDATION INTO THE REQUIRED SIZE AND SHAPE OF THE MOLDED PLATES USED (BLOCKS AND PLATES) AS FIRE-PROOF COVERING MEMBERS. AN ADHESIVE AGENT MADE OF A MIXTURE OF SODIUM SILICATE 65% BY WEIGHT, AND ASBESTOS FIBERS CHAMOTTE AND FIRE-PROOF CEMENT 35% BY WEIGHT IS APPLIED TO THE JOINT PORTIONS OF THE STRUCTURAL MEMBERS AND MOLDED MEMBERS AND ALSO BETWEEN ADJACENT MOLDED MEMBERS OS THAT THE JOINT PORTIONS CAN COMBINED AND FIXED TOGETHER WHILE USING CLAMPS AND NAILS TO FORM TEMPORAY SUPPORT AS THE ADHESIVE SETS TO FORM FIRE-PROOF LAYERS OF THE REQUIRED THICKNESS. THUS IT IS POSSIBLE TO COVER THE OUTSIDE OF A STRUCTURAL MEMBER INCLUDING ITS CORNERS TO AN EXACT SIZE BY MERELY SECURING THE FIRE-PROOF MOLDED MEMBERS TO THE OUTSIDE OF THE STRUCTURAL MEMBER BY MEANS OF THE ADHESIVE AGENT, THEREBY OBTAINING DURABLE AND STRONG BEAMS AND PILLARS COMPLETELY COVERED BY SAID MOLDED FIRE-PROOF COVERING MEMBERS.

Inventors

• 👤 Sei Nikai
• 👤 Kiichi Ishii
• 👤 Shinsaku Miyake

Bibliographic Details