| 摘要 |
Permanent formwork for point and strip foundations of small structures, such as small buildings, prefabricated garages, retaining walls or the like, consists of plate-shaped parts of flat blanks of a multi-layer, flexurally rigid panel which are modified at least on the outside in such way as to be resistant to the action of weather and are joined together by means of an auxiliary agent known from cardboard processing to form the formwork, the blanks advantageously being produced in a trapezoidal shape so that, after they are joined together, permanent formwork is obtained with walls which converge towards the top and, after insertion into the foundation trench, are back-filled with the excavated earth, whereupon the concrete is then poured into the formwork. Very cost-effective and rapid construction of point and strip foundations is possible by this design.
|
