Applications

Ground heave is mainly the result of clayheave or overburden recovery.  HX S and HX Plus are suitable for use under all types of suitably designed ground floor slabs in the commercial, industrial and residential sectors.

Cellcore HX B and Cellform HX are mainly used beneath piled beams in domestic properties.

Table 1 (Standard grades)
For easy indentification the panels are coloured as shown.

Grade	Safe Load (kN/m²)	Fail Load (kN/m²)	Max. Concrete Depth* (mm)
7/10	7	10	220
9/13	9	13	300
13/18	13	18	460
18/24	18	24	660
24/32	24	32	900

* Based on the new Eurocode and a live load allowance of 1.5kN/m².

Notes
Standard panel size is 2.4x1.2m.
For concrete thicknesses greater than 900mm and 2metres, please contact our Technical Services Team - 01403 799601, info@cordek.com.

Table 2 (Selection of Cellcore HX)

Results of Soil Analysis	NHBC Category	Predicted Ground Heave or BRE/NHBC requirement	Depth of Cellcore HX required to achieve 'Equivalent Void'
Plasticity Index	Shrinkage Category	Void Dimension(mm)	HX S(mm)	HX B(mm)
10 - 20	Low	50	90	85
20 - 40	Medium	100	160	155
40 - 60*	High	150	225	220

* When the analysis exceeds 60 or a deeper void is required please contact our Technical Services Team - 01403 799601, info@cordek.com.