Title: Three-Dimensional and Online-Shaped Textile Production with Double Needle Bar Raschel Machines and Weft Insertion for Concrete Applications

Author(s): A. Roye and T. Gries

Publication: Symposium Paper

Volume: 244

Issue:

Appears on pages(s): 77-86

Keywords: 3D-fabric; online-shaped textile; spacer fabric; textile; textile concrete reinforcement; warp knitted textile

Date: 5/1/2007

Abstract:
Cement-based materials are brittle in nature, with high compressive strength and low tensile strength and toughness. Therefore, the use of these materials in practice involves their combination with reinforcement. This article demonstrates possible reinforcing strategies by using textile structures with high strength behavior. Different textile structures are shown as they are used in practical applications more and more. A special focus will be put to the production and design possibilities of 3D-textiles. Although there are two definitions for 3D-textiles, the 3D-structures as well as the 3D-geometries here mainly the 3D-structured spacer fabric are described. A double needle bar raschel machine is the most common machine type for this type of 3D-textile production. Those 3D-textiles allow a defined positioning of the reinforcement as well as a providing of reinforcement in the third dimension. Finally a survey of possible applications for 3D-textile reinforced concrete elements are given.