8
1 Static Mechanical Properties of UHPCC
1.3.4 Four-Point Flexural Test
As shown in Fig. 1.6, in the four-point flexural test, the unnotched beam specimens
with a span of 300 mm were loaded and the forces divided the span into thirds. The
above INSTRON-8803 testing machine was used, and the displacement control rate
was set as 0.1 mm/min. Two LVDTs attached at opposite sides of the specimens were
used to measure the averaged mid-span deflection, and the flexural load–deflection
curves were obtained.
P/2
100
100
50
50
100
100
100
P/2
100
LVDT
(a)
LVDT
Specimen
(b)
Fig. 1.6 Four-point flexural test with unnotched beam a dimensions of specimen (unit mm) b setup,
Ren et al. (2018), copyright 2020, with permission from Elsevier