| 摘要 |
FIELD: construction engineering. SUBSTANCE: this can be widely used in erection of new or repair and reconstruction of old buildings and structures. This wall facing stone is of high physical and mechanical properties, long service life and high reliability. Wall facing stone has load-bearing part with down-facing tooth in its back lower side, and guide section in its upper part. Also provided is covering part in the form of strip located as cantilever at front side with formation of chamfer or step in upper part of strip. Plate is made of building cement-sand mixture activated in rotary type mixer with subsequent casting in mould and subjection to vibration. Height of strip from lower chamfer to edge exceeds its thickness by 8-30 times. Due to introduction of plasticizing agent and repeated mixing operation, high fluidity of cement-sand mixture is achieved which equals or exceeds initial value. EFFECT: high efficiency. 1 cl, 2 dwg
|
