Hydraulic bound mixtures are used as a sub-base and base layer, as an alternative to granular sub-base materials
Hydraulic bound mixtures are used as a sub-base and base layer, as an alternative to granular sub-base materials. With these mixtures, on-site materials excavated can be re-used, reducing waste materials, traffic movements and more.
This is a graded aggregate product, to a specific gradation with the addition of a hydraulic binder, such as cement, or pozzolans such as fly-ash or granulated blast furnace slag. This is generally governed by national standards, but Harsco Environmental has developed products in both Australia and China. HBR is generally cheaper than asphalt and continues to increase in strength over time.
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