Precast concrete is one of the main constructive materials in the building sphere. Interest for use of short fibers as main or as additional reinforcement in precast technology is growing, leading to numerous applications. Main advantage using fiber concrete without additional reinforcement is a possibility easily to create elements with practically unlimited shape. Now variable geometry systems from flexible materials are developing and improving having a great potential according to modern tendencies in concrete technology. [1] Our laboratory experimental results were shown that the technology can be successfully used for fibro concrete shell production and construction.