ABSTRACT
Type A Type B Bar diameter (d s)
10 to l6 16 to 32
Bond length (l d)
Thickness of concrete blocks 100 150
Depth of concrete blocks 180 240
Length of concrete blocks 375 600
Distance between concrete blocks 50 60
Total length of beams 800 1260
Length of bars tested 1000 1500
Distance between centre-line of bar and centre line of hinge 100 150
Distance between centre-line of bar and underside of beam 50 50
Spacing of the loads 150 200
Spacing of the bearings 650 1100
Dimensions of the steel hinges see fig. 5 see fig. 6
Round gravel 4-16:1300kg Natural sand 0-2:660 kg Cement: 250 kg (RILEM standardized strength of 40 N/mm2) Water: 165 kg If necessary, water may be added to the mix to obtain concrete with a slump by
means of the Abrams’ cone of 5 ±1 cm and the strength indicated at 6.5.
