| 摘要 |
It applies to a membrane of rapid and cheap construction, based on three components only: rods (1) joined by tying (2) or welding; absorbent and porous fabric (3) tied (4) to said rods, the fabric being of the sackcloth type; and, finally, mortar (5) projected to the face of said fabric and to the other face of the tied rod structure.
|
