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Complex Modulus fr om the Indir ect Tension Test 129

For the IDT test, the Load Guide Device (LGD), developed from the Strategic
Highway Research Program (SHRP), was used as the loading apparatus. This device is
shown in Fig. 5-2(a). From the NCHRP 1-28 study, it was found that when compared
against other loading devices with no column or four columns, the SHRP LGD with

(a)

(b)
FIGURE 5-2 (a) IDT test setup with SHRP LGD and (b) surface-mounted LVDTs. (Kim et al. 2004,
with permission from Transportation Research Board.)