Research Article
Design and Assessment of a Lightweight Polymer Concrete Utility Manhole
Table 4
Formulation compositions in mass.
| ā | Fine sand | Coarse sand | Quartz | Pellets | Hollow glass microspheres | Resin system | Epoxy | Hardener |
| ā | wt.% | Formulation 1 | 18.5 | 55.4 | 6.2 | 0 | 0 | 14.8 | 5.2 | Formulation 2 | 0 | 0 | 0 | 62.4 | 17.6 | 14.8 | 5.2 |
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