232
A. Tartaglia
Table 1 Results of laboratory tests referred to the different alternatives considered for the foam
process. The composition of the samples of glass waste was intentionally varied with different additives and subjected to diversified heat treatments in order to favour their optimal and homogeneous
foaming
Sample
Apparent density Compressive
strength
Specific strength
Composition
Heat treatment g/cm 3
Mpa
(N mm)/g
Glass waste +
1.2% MnO 2 +
1.5% SS + H 2 O
850C 10 min
1.093
5.82
5324
Glass waste +
1.2% MnO 2 +
1.5% SS + H 2 O
875C 10 min
0.736
4.643
6306
Glass waste +
1.2% MnO 2 +
1.5% SS + H 2 O
900C 10 min
0.56
2.415
4313
Glass waste +
1% CaSO 4 + 3%
SS + H 2 O
850C 30 min
0.506
1.524
3012
Glass waste +
1% CaSO 4 + 3%
SS + H 2 O
900C 10 min
0.764
5.974
7816
Glass waste +
1.2% MnO 2 +
3% SS + 3%
C 3 H 8 O 3 + H 2 O
850C 10 min
0.74
4.751
6418
Glass waste +
1.2% MnO 2 +
3% SS + 1.5%
C 3 H 8 O 3 + H 2 O
875C 10 min
0.987
4.77
4830
Glass waste +
1.2% MnO 2 +
3% SS + 1.5%
C 3 H 8 O 3 + H 2 O
900C 10 min
0.848
4.007
4724
Glass waste +
1.2% MnO 2 +
3% SS + 1.5%
C 3 H 8 O 3 + H 2 O
950C 10 min
0.862
5.084
5901
Glass waste +
1% C + 1.5% SS
+ H 2 O
900C 10 min
1.19
5.318
4461
Glass waste +
1% C + 1.5% SS
+ H 2 O
900C 10 min
1.14
5.294
4630
Source Enrico Bernardo—Università di Padova