Building material, especially concrete or mortar, contains magnetically or electrically aligned parallel fibers

摘要

The building material contains magnetically or electrically aligned parallel fibers. An Independent claim is also included for production of the above building material, in which the fibers are aligned by the action of magnetic or electric fields. Preferred Feature: Alignment is improved by mechanical vibration, switching on and off of the field with a frequency dependent on the matrix material and fibers or treatment of the matrix material with ultrasound, chemical dilutent addition or heat treatment.