Page 8 - Harbour Sludge Stabilisation.pdf
P. 8
Figure 2. 4-points load cell equipment as used in the tests in UTM-elaboration (the test beam shown was
produced with ImmoCem 35/0,3)
The tensile stress (maximum stress at the base of the beam) follows P max as measured during the test:
� = × → = � × × 4
× . ×
Where
= Load at failure(N)
2
� = breaking stress at bottom of the beam(N/mm )
=width of the test beam (mm)
= height of the test beam (mm)
= distance between the loading points(=133.33 mm)
The maximum tensile strain at the middle point of the beam is a function of maximum deflection at that
point and is given by equation 5
= . × × × 5
6
