Material quantities for our third and fourth mix designs are provided below. The goal of these trials were to come up with lightweight mixes without using Elemix (expanded polystyrene) in order to increase density and compressive strength. Two different sizes of Poraver (recycled glass beads) were used in each mix. Mix 4 incorporated an air-entraining admixture to increase air content percentage.
Mix 4
| Material Type | Material Name | Weight (lbs) |
|---|---|---|
| Cementitious Materials | Portland Cement (Type I) | 0.77250 |
| Silica Fume | 0.13500 | |
| Aggregates | Cenospheres | 0.41250 |
| Poraver (0.25-0.5 mm) | 0.47650 | |
| Poraver (0.5-1.0 mm) | 0.37500 | |
| Water | Water | 0.30000 |
| Sikament 686 (SP) | 0.01300 | |
| Sika Air (AE) | 0.01300 | |
| Additional Water for Aggregate Absorption | 0.20850 |
Mix 3
| Material Type | Material Name | Weight (lbs) |
|---|---|---|
| Cementitious Materials | Portland Cement (Type I) | 0.35000 |
| Silica Fume | 0.00505 | |
| Slag | 0.00705 | |
| Aggregates | Cenospheres | 0.05000 |
| Poraver (0.1-0.3 mm) | 0.25000 | |
| Poraver (0.5-1.0 mm) | 0.08000 | |
| Water | Water | 0.25000 |
| Sikament 686 | 0.03500 |