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Table 5 Results of 1st series of four-point bending experiments concerning the kiln-cast beams

From: Investigating the flexural strength of recycled cast glass

1st four-point bending experiment: Kilncast glass beams \(30\times 30\times 240\) mm, 110/220 mm supports
Glass type Specimen description Forming temperature (\(^{\circ }\hbox {C}\)) No. of tested specimens Flexural strength (MPa) Average flexural strength (MPa)
Minimum Maximum
Soda lime silica (float glass) Fully tempered float 1120 3 40.9 46.5 43.9
Fully tempered float 970 1 17.9
Float 10 mm, 3 horizontal layers 970 1 9.5
Float 10 mm, 24 vertical layers 970 1 9.9
Float 10 mm, 3 vertical layers 970 1 9.4
Oven doors 1120 1 46.1
Borosilicate DURAN rods \(\times \) 10 vertical 1120 2 44.2 49.5 46.8
DURAN rods \(\times \) 10 vertical 970 1 15.5
DURAN rods \(\times \) 2 vertical 970 1 18.5