E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
E04G21/12—Mounting of reinforcing inserts; Prestressing
E04G21/121—Construction of stressing jacks
Landscapes
Engineering & Computer Science
(AREA)
Architecture
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Mechanical Engineering
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Civil Engineering
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Structural Engineering
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Manufacturing Of Tubular Articles Or Embedded Moulded Articles
(AREA)