THE NEW, ECONOMICAL WAFFLE POD and RIBBED RAFT SLAB FLOOR SYSTEM.
In the past, domestic footings were based on a concrete beam method that usually required extensive, backbreaking digging. Apart from the manual labour involved, there was always the added difficulty of trying to accurately control the amount of concrete used. During wet weather trenches and steel would need to be cleaned again, hence adding further cost and lost production. In 1982 as an alternative, the Waffle Raft System was developed. Tests took place and the results was sensational. Polystyrene voids turned out to be the best, most environmentally friendly material to use, since it made the void former easier to handle and store, it was less expensive than the alternatives, and consistently performed well. As a bonus, it gave the building an insulated floor.
Developed by SARTAS (NSW), manufactured for SARTAS (NSW) by the leading manufacturers of moulded void formers. These companies have very high standards of quality control with R-MAX being a quality endorsed company having been accredited with ISO 9002 accreditation. The polystyrene voids are built from heavy duty moulded polystyrene which are specially designed to resist heavy rain, and can easily carry the weight of the workmen. In fact, the system proved to be so revolutionary that the Standards Association of Australia Codes were eventually changed in 1988 to incorporate it. They are as follows: Concrete and Design of Residential Slabs and Footing Codes AS 2870.1-1998, AS 2870.2-1990, Concrete Structures Code AS 3600-1988.
The Waffle Pod Ribbed Raft System has now been developed and recommended by many of the country's leading consultant structural engineers to provide a more economical method of construction. The system is now used exclusively by most major builders.