
GEOTECHNICAL INFILLS
Cellular concrete is very practical as a material for filling of natural cavities in the geotechnical sense, decommissioned tunnels, culverts, excavations for tubing, vaults in historic centres. The choice of cellular concrete in this type of application allows for filling without adding excessive weight to the structure. Its characteristic of fluidity allows for easy filling of irregular and difficult to reach cavities (given the possibility of inserting the delivery tube into small access holes).
The risks deriving from wall masses collapsing in potentially unstable rock can be reduced with filling actions aimed at impeding the detachment of the mass which might put safety at risk. Furthermore, cellular concrete is able to dissipate more energy compared with a heavy material such as gravel for instance. As against loose material, the hardened material does not settle.
As an example, having to fill a cavity of 100 cubic metres, we would have to transport some 30 tons of concrete which is the same as a site lorry. On the other hand, having to fill the same volume with concrete or inert material would require transporting the whole 100 cubic metres of volume.
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PRODUCTS RECOMMENDED FOR GEO-TECHNIC INFILLING
For geo-technic infilling in cellular concrete, the following products must be used: