A LIGHT WEIGHT BODY FOR HOLLLOW CONCRETE SLAB

摘要

A lightweight body for a hollow slab is provided to reduce the amount of concrete used, and to regulate the height of a lightweight body without using another lightweight body of the different size although the thickness of a slab is changed. A lightweight body for a hollow slab comprises a hollow upper lightweight body(10) formed in the hemispheric shape, a hollow lower lightweight body(20) formed in the hemispheric shape and installed opposite to the upper lightweight body, and a hollow cylindrical height adjustment unit(30) installed to be attachable and detachable between the upper lightweight body and the lower lightweight body, wherein the upper and lower lightweight bodies are provided with plural grooves formed along the outer side of the upper and lower lightweight bodies to pass the fixed point of the spherical shape, fitted with wire meshes to pass and meeting each other at right angles to enlarge the volume of a lightweight body.