| 摘要 |
<p>A stay-in-place concrete forming system comprises form blocks 20 made from bonded expanded glass granules which provide surfaces of sufficient accuracy and uniformity, to provide the permanent final surfaces of the walls and ceilings of a construction. The blocks 20 comprise inner 21 and outer 22 walls and plastic spacers 24 fitted into holes 30 in the walls 21 and 22. The spacers 24 may include round slots 25 to locate horizontal reinforcing bars or rebar 41. The inner 21 and outer 22 walls of the formwork may includes tongues 33 and cooperating grooves 34 with glue grooves 35 and can be manufactured so they have different properties, to suit the position of the surface in the construction. The expanded glass granules may be made from recycled glass and may be used with an inert resilient polymeric binder such as a moisture cured polyurethane binder to which chopped strands such as glass fibre or polypropylene may be added. An outer layer 27, 29 of the wall 21, 22 may have different properties to the remainder of the wall 21, 22. The walls 21, 22 may include a phase change material. The system may be used in the construction of low rise commercial, and high performance residential construction, or similar.</p> |
