Table 7 Results of 2nd series of four-point bending experiments concerning the kiln-cast beams
From: Investigating the flexural strength of recycled cast glass
2nd four-point bending experiment: Kilncast glass beams \(30\times 30\times 240\) mm, 100/200 mm supports | |||||||
|---|---|---|---|---|---|---|---|
Glass type | Specimen description | Forming temperature (\(^{\circ }\hbox {C}\)) | No. of tested specimens | Flexural strength (MPa) | Average flexural strength (MPa) | Average E modulus (GPa), LVDT calculation\(^\mathrm{a}\) | |
Minimum | Maximum | ||||||
Soda lime silica (float glass) | Fully tempered float | 1120 | 6 | 33.5 | 50.8 | 43.7 | 59.3 |
Float 10 mm, 3 horizontal layers | 970 | 2 | 41.1 | 49.9 | 45.5 | 59.7 | |
Float 10 mm, 24 vertical layers | 970 | 3 | 27.9 | 37.7 | 33.3 | 58.6 | |
Float dark blue | 1120 | 3 | 60.7 | 65.7 | 62.9 | 62.3 | |
Soda lime silica (float glass) with contamination | Float combo | 1120 | 1 | 46.5 | – | 61.8 | |
Oven doors | 1120 | 3 | 29.9 | 43.8 | 37.5 | 58.3 | |
Car windshields | 1120 | 3 | 35.2 | 45.9 | 41.1 | 59.8 | |
Float with black enamel, 60 layers | 1120 | 3 | 36.4 | 50.1 | 41.7 | 60.7 | |
Modified soda lime | Poesia standard cast brick | 1070 | 3 | 61.3 | 72.1 | 66.5 | 61.1 |
Borosilicate | DURAN tubes | 1120 | 5 | 30 | 50 | 42.5 | 52.4 |
DURAN rods \(\times \) 10 vertical | 1120 | 3 | 34.3 | 50.6 | 44.1 | 53 | |
DURAN rods \(\times \) 10 vertical | 1070 | 3 | 24.5 | 36.7 | 30 | 50.9 | |
DURAN rods \(\times \) 10 vertical | 970 | 3 | 10.1 | 15.9 | 12.4 | 36.9 | |
DURAN 24 mm rods, honeycomb | 970 | 1 | 19.4 | – | 41 | ||
Borosilicate mix Coolrec | 1120 | 1 | 66.9 | – | 59.2 | ||
Wertheim (C-glass) | Wertheim pellets | 820 | 3 | 41.3 | 61.1 | 52.2 | 62.6 |
Wertheim pellets | 900 | 1 | 63.4 | – | 64.6 | ||
Barium–strontium silicate | Barium CRT front panel | 870 | 3 | 42.4 | 56.1 | 51.2 | 58 |
Potash–lead silicate | Lead CRT funnel | 870 | 1 | 33.3 | – | 56.1 | |
Lead glass | 820 | 2 | 32.5 | 38.1 | 35.3 | 49.8 | |