Prefabricated building components of expanded material and cement

DETAILED DESCRIPTION These deficiencies and disadvantages lead to the need to resolve the new technical problem of conceiving load bearing or non-load bearing prefabricated components consisting of castings, which prevent sound transmission, which are insulating, light, fire resistant, non-degrading and require minimum labor in manufacture, with minimum formation of wastage, and which can be lifted from their forms after short curing periods so as to accelerate production and more rapidly amortize the installation.
These prefabricated components must be easily workable on site to allow the execution through them of holes, slots or recesses for housing and/or the passage of system elements for the building.
In particular it is required to find a manufacturing method to continuously produce the prefabricated components at more convenient speeds and costs than those obtainable up to the present time in the case of traditional prefabricated components.
The manufacturing method in accordance with the present invention is to be carried out by machines which also form a particular object of the new technical problem.
The present invention completely resolves the aforesaid new technical problem in four stages, represented in the four Italian priority patent applications.
In the first patent application, 40085 A/75 of Sept.
5, 1975, a prefabricated panel is used consisting of a casting from a mix containing expanded polystyrene granules bonded to cement by adhesive.
The prefabricated component consists mainly of two longitudinal lateral members separated by a channel, and connected together lowerly by a base slab in a single piece with said members, and is particularly suitable for preventing noise and heat transmission.
In the channel there is inserted during prefabrication a trellis reinforcement, the stirrups of which are lowerly and laterally extended to enter the casting and enable the prefabricated component to be lifted after short curing, and to keep said longitudinal members joined together at the thin base slab