Hydraulic road binders

Hydraulic road binders are factory produced binders ready for use after delivery. Depending on local experience and materials availability, different hydraulic binders are used for stabilization of base and sub-base layers, and for improvement and soil stabilization.

Standard SRPS EN 13282-1:2015 provides production of 4 different classes of hydraulic road binders:

Moravacem d.o.o. produces two classes of this binder, hydraulic road binder HRB E2 and hydraulic road binder HRB E4.

• Hydraulic road binder HRB E2 is used for preparation of stabilized mixture intended for construction of base layer of pavement structure. Stabilized mixture is homogeneous mixture of crushed stone aggregates with appropriate amount of water and binder.
• Hydraulic road binder HRB E4 is intended for improvement and soil stabilization before construction of pavement structure. Stabilized mixture is homogeneous mixture of soil or gravel with appropriate amount of binder and water.

Application of HRB E2 and HRB E4 requires previous trials for designing of compostition of stabilized mixture and achieving required quality criteria. Trials are to be conducted in certified laboratories in accordance with technical conditions for road construction and other appropriate standards.

Besides quality criteria regarding compressive strengths after 28 days, very important parameter in designing of stabilized mixture is its homogeneity which is achieved with optimal percentage of binder and water. Also, placement of stabilized mixture and curing of stabilized layer is  to be done properly.