ABSTRACT
This paper deals with possibilities of partial supplying of primary components in original prescription of wood-cement boards by secondary raw materials. That will achieve a decrease in production loads, modification of building board characteristics and, last but not least, a decrease in ecological damage. Unfortunately, not every fast renewable or secondary raw material could be used as filler in cement bonded building materials. Alternate aggregates must not noticeably affect adversely interaction with cement or any other used component at hydration. One of the potential alternatives is hemp.
