1 Introduction
2 Thermal Effect in PCC Pavements
3 Thermal Conductivity (TC) and Heat Capacity (HC)
4 Glass in Concrete
Oxide | Fine aggregate | Coarse aggregate | Glass bead |
---|---|---|---|
SiO2 (%) | 2.59 | 38.76 | 69.80 |
Al2O3 (%) | 1.09 | 17.65 | 1.45 |
CaO (%) | 95.09 | 13.00 | 9.52 |
MgO (%) | – | 6.33 | 4.20 |
Fe2O3 (%) | 0.92 | 13.56 | 0.15 |
K2O (%) | 0.17 | 2.12 | 0.72 |
Na2O (%) | – | 6.52 | 13.85 |
Properties | Cement (PC 42.5) |
---|---|
SiO2 (%) | 20.81 |
Al2O3 (%) | 5.41 |
CaO (%) | 62.3 |
MgO (%) | 0.97 |
Fe2O3 (%) | 3.72 |
Na2O + K2O (%) | 0.43 |
SO3 (%) | 3.07 |
Density (g/cm3) | 3.17 |
Sieve size in (mm) | Percentage passing by weight (%) |
---|---|
4 | 100 |
2 | 81.4 |
1 | 55.2 |
0.5 | 38.8 |
0.25 | 27.2 |
0.063 | 12.4 |
Sieve size in (mm) | Percentage passing by weight (%) |
---|---|
0.850 | 99.8 |
0.710 | 95.2 |
0.600 | 79.0 |
0.425 | 47.3 |
0.300 | 20.0 |
0.180 | 3.7 |
5 ASR and Compressive Strength of Concrete with Glass Beads
Glass bead proportion (%) | Cement (g) | Water (g) | Fine aggregate (g) | Glass bead (g) |
---|---|---|---|---|
0 | 440 | 207 | 990 | – |
9 | 440 | 207 | 901 | 89 |
19 | 440 | 207 | 802 | 188 |
31 | 440 | 207 | 683 | 307 |
Strength class C30/37 | Cement PC 42.5 (kg) | Water (kg) | Glass bead (kg) | 0/4 Fine aggregate (kg) | 7/15 Coarse aggregate (kg) | 15/25 Coarse aggregate (kg) | Admixture (g) |
---|---|---|---|---|---|---|---|
0 % Glass bead | 1.50 | 0.87 | 0 | 4.874 | 2.343 | 2.164 | 18 |
9 % Glass bead | 1.50 | 0.87 | 0.798 | 3.562 | 2.343 | 2.164 | 18 |
19 % Glass bead | 1.50 | 0.87 | 1.597 | 2.25 | 2.343 | 2.164 | 18 |
31 % Glass bead | 1.50 | 0.87 | 2.395 | 0.937 | 2.343 | 2.164 | 18 |
Strength class | Glass bead proportion (% weight of aggregate) | Compressive strength (MPa) |
---|---|---|
C30/37 | 0 | 48.06 |
C30/37 | 9 | 42.48 |
C30/37 | 19 | 39.65 |
C30/37 | 31 | 35.57 |
Glass bead (%) in mix design | Unit weight (kg/m3) |
---|---|
0 | 2630 |
9 | 2490 |
19 | 2340 |
31 | 2200 |