Applications
Communal and county road stabilization
Unpaved or gravelled communal and county roads drain maintenance budgets year after year: rain washes out the gravel, clay turns to mud, and in summer dust triggers complaints from residents. Ecological stabilization with ROAD//STABILIZR® and DUST/BLOKR® treats the cause (the unstable soil), not just the symptoms.
Sistem Construct 2007 has been the exclusive official Cypher Environmental distributor for Romania and the Republic of Moldova since 2010. We have carried out communal road maintenance works, street rehabilitations and upgrades of local and county roads, on clayey, sandy and silty soils as well as on existing gravel layers.
The challenge
The challenges of communal and county roads
Local administrations face the same vicious circle: yearly repairs that do not survive from one season to the next.
Gravel layers that vanish after every winter
Aggregate placed on an unstabilized clay bed sinks into the soil and gets washed away, so the work has to be repeated every year from the maintenance budget.
Mud and rutting in the wet season
Soils with high clay content lose their bearing capacity when wet: potholes, ruts and impassable sections appear, affecting school buses, farm machinery and emergency services.
Dust in summer, complaints from residents
Traffic on dry gravel roads raises dust that affects roadside households, crops and air quality in the community.
High costs for aggregates hauled from afar
Repeated regravelling requires quarry material and long-distance transport, a significant share of the total cost.
The solution
The solution: in-situ stabilization with ROAD//STABILIZR® and DUST/BLOKR®
We treat the soil already in the road and turn it into a stable, dense, impermeable layer, without bringing in materials foreign to the area.
ROAD//STABILIZR® specifically targets soils with high clay content, which are common on communal and county roads in Romania. Its formulation of organic catalysts, electrolytes and surfactants penetrates the soil and modifies the clay particles, which become strongly and semi-permanently bonded: the clay acts as a flexible binder that locks the aggregates in place. The product removes excess water and promotes high compaction and densification, increases the CBR value and reduces swelling and permeability.
DUST/BLOKR® completes the treatment at the surface: it waterproofs the stabilized layer and eliminates dust, with results that outlast traditional chlorides and without their corrosive nature. Both products are biodegradable, non-toxic and non-corrosive, with technical approvals issued by the Romanian Ministry of Development, Public Works and Administration together with the Permanent Technical Council for Construction.
For upgrade projects with an asphalt wearing course, the procedure in the technical approval uses the stabilized layer as the foundation, covered by a 15 cm ballast layer and the asphalt mixture specified in the design. We provide support with design documentation, application assistance, supervision or full execution.
The procedure
The execution procedure, step by step
According to the technical approval, the work is carried out with standard road equipment (grader, water truck, compactor), with nothing specialized required.
- 1
Preliminary laboratory testing
Soil identification according to SR EN ISO 14688-2 and determination of product dosages and optimum compaction moisture, through specialized laboratories.
- 2
Layer preparation
Scarifying and breaking up the material already in the road, reprofiling with drainage slopes and bringing the layer to optimum moisture with water.
- 3
Treatment with ROAD//STABILIZR®
The product is applied diluted in water during soil preparation, before compaction. Official dosage: 1 litre treats 33 m³ of compacted soil. It is not applied in freezing conditions.
- 4
Treatment with DUST/BLOKR® and final compaction
The surface is treated with DUST/BLOKR® for waterproofing and dust control, then compacted. The road can be opened to traffic immediately after final compaction.
- 5
Upper layers (for paving projects)
A 15 cm ballast layer is placed over the stabilized layer, followed by the asphalt mixture specified in the design, and the work is closed with the acceptance report.
Benefits
Benefits for town halls and county councils
Concrete arguments for budget holders, investment directors and the engineers in the technical department.
Dramatically reduced maintenance costs
The stabilized layer remains stable through freeze-thaw cycles and performs in both wet and dry conditions, so the yearly regravelling and repair budget drops significantly.
The material in the road, not new aggregates
Using the in-situ material brings substantial savings: quarry material and its transport costs disappear.
Traffic opens immediately
The road can be opened immediately after final compaction, with no long closures that disrupt the community.
Complete documentation for the investment
Technical approvals from the Ministry of Development and the Permanent Technical Council for Construction, support with design documentation, firm contract, performance warranty and acceptance report.
An ecological solution accepted in protected areas
Biodegradable, non-toxic products, ISO 14001 certified, usable even in protected areas and Natura 2000 sites.
Proven experience on public roads
Works carried out on communal and county roads in Ilfov, Galați, Ialomița and Buzău counties, plus a cross-border project in the Republic of Moldova.
Reference projects
Reference projects on communal and county roads
Unlike other applications, for public roads we have works executed and accepted in Romania and the Republic of Moldova:
Afumați, Ilfov county: rehabilitation of Stadionului Street, in association with Alma Architecture SRL.
Piscu, Galați county: communal road maintenance works, as general contractor.
DJ213A, Ialomița county: upgrade of the county road between the Călărași county border and DN21, through Mărculești, Bucu and Scânteia.
DJ203K, Buzău county: upgrade of the km 38+000 – 75+000 section, Mărăcineni – Podu Muncii, for the Buzău County Council.
Sireți, Strășeni district, Republic of Moldova: road infrastructure development within the cross-border project with Tulucești commune, Galați county.
Useful resources
The products and tools behind the solution
ROAD//STABILIZR®
Long-term stabilization of clay soils: technical details, dosage and application method.
View detailsDUST/BLOKR®
Chloride-free dust control and waterproofing: certifications and application method.
View detailsDosage calculator
Get an indicative estimate of the product quantity needed for your project.
View detailsFAQ
Frequently asked questions
When can traffic resume after stabilization?
Immediately after final compaction. Application is done with standard road equipment during soil preparation, so the road is not closed for long periods.
Can the stabilized layer be paved over with asphalt?
Yes. For projects with an asphalt wearing course, the procedure in the technical approval specifies a 15 cm ballast layer over the stabilized layer, followed by the asphalt mixture in the design. The stabilized layer works as a foundation with increased bearing capacity.
What documents does the town hall or county council receive?
The products hold technical approvals issued by the Ministry of Development together with the Permanent Technical Council for Construction, and ISO 14001 certification. We provide support with design documentation, a firm contract, fiscal invoice with delivery note, acceptance report and performance warranty. MSDS sheets are available on request.
Does it work on the clay soils in our area?
ROAD//STABILIZR® is designed precisely for soils with high clay content. Before execution, preliminary laboratory tests according to SR EN ISO 14688-2 confirm the right dosage for the soil on site. In Romania we have treated clayey, sandy and silty soils as well as existing gravel layers.
Next step
Request an assessment for your project
An engineer specialized in road stabilization with Cypher products answers you directly, by phone or on WhatsApp.