FLEXIBLE LAMELLAR ANCHOR AS A MEANS OF ROD ANCHORING IN THE MASS OF CELLULAR CONCRETE

Abstract

Since some decades, building industry of many countries, including Ukraine, has widely used cellular concrete in residential and industrial constructions. The most popular kinds include foam concrete and autoclaved aerated concrete. Items of such concretes are light, not expensive, with simple production technology, sufficient thermal and sound insulating characteristics, environmentally safe. Besides, they can be easily mechanically processed, particularly, sawed, drilled, milled, etc. Those properties enable sufficient reducing of construction costs. Elements and materials of cellular concrete are used for laying of external and internal walls, partitions, for thermal isolation of roofs, upper store, floor, for filling of space, for sound proof of reinforced ceiling and others, previously inaccessible places and fields. It is also necessary to mark one of the most important drawbacks of such concrete, i.e. its not high mechanical strength. Thus, reinforcing such concrete with various rod armature, one faces the problem of rod anchoring in the mass of cellular concrete. A constructive solution of the problem would considerably extend the field of safe use of the elements of cellular concretes, particularly in case of passing construction elements.  The article describes and analyzes results of experimental researches of metal rods anchoring with flexible lamellar anchors of various form. To determine “net” operation of anchors, linkage of a rod with the mass of cellular concrete has been maximum reduced. Results of experimental researches confirm a possibility and expediency to apply such kind of rod armature anchoring in the elements of cellular concretes.