Road maintenance and road rehabilitation with roxit

Economical, sustainable and technically sound

Two people in protective clothing work with hand tools on a freshly applied asphalt surface; a road construction machine is visible in the foreground

Roads need to perform – safely, resiliently, economically and, where possible, without long closure periods. For local authorities, businesses and infrastructure operators, this means above all: prioritizing maintenance over new construction wherever technically feasible.

Preservation over new construction

This is exactly where we come in. roxit stands for economical, sustainable and technically robust road maintenance methods based on bitumen emulsions from our own production that are precisely customised to the respective requirements. Our clear priority is preservation over full rehabilitation or new construction, as long as the existing structure permits it. roxit specialises in crack repair, joint sealing, edge treatment, impregnation, milling, cold thin-layer applications and the production of surface treatments. We use state-of-the-art processes that extend the service life of existing traffic surfaces. This delivers the following benefits for our clients:

short construction times
economical solutions
long-lasting results
plannability and technically transparent decisions

Whether for road construction, maintenance or rehabilitation: we support you in operating infrastructure in a sustainable and budget-conscious manner.

Our expertise in road construction

For clients, it is essential that road construction and rehabilitation measures can be planned and executed from a single source. Coordination effort is reduced, interface risks are minimised and reliable processes are ensured as a result. This is precisely where we excel: we support projects from initial analysis through to long-term maintenance and preservation.

From planning to operation

You receive end-to-end support – from technical concept development through to the execution of road rehabilitation works.

Material, processes and execution

Thanks to our own bitumen emulsions and specialised maintenance processes, we deliver solutions that are technically aligned and economically viable. For you, this means fewer dependencies, reduced coordination effort and a consistent result from a single source.

Road rehabilitation and road maintenance

Instead of early-stage reconstruction, we focus on road rehabilitation and maintenance. The benefits of this approach are: shorter construction times compared to full rehabilitation, lower life-cycle costs and the sustainable use of existing infrastructure.

Minimal traffic disruption due to short construction times

With roxit, many road maintenance projects are completed within just a few hours or a single day. This reduces traffic congestion, detours and other restrictions.

Specialisations of roxit

Many providers in the road construction sector focus on new construction or asphalt works alone. Our strengths go beyond that, covering areas that are particularly important for infrastructure preservation:

Bitumen emulsion-based preservation methods:

These methods enable cost-effective rehabilitation with short closure times and low CO₂ emissions. For clients, this means that roads remain usable for longer without requiring full reconstruction.

Jointing technology, Patchmatic, Multimac® (DDK/DSK), SAMI, fleece laying:

These specialised methods address typical damage patterns at an early stage, prevent water ingress and significantly extend the service life of road infrastructure. They are particularly valuable for municipal networks and heavily used traffic areas.

In-house equipment fleet:

With milling machines, DDK/DSK laying equipment, surface treatment machines, repair trains and joint cutters, we can work flexibly, fast and with high precision. This reduces waiting times, enables short-notice execution and ensures high-quality workmanship. The result is a clear benefit for our clients: solutions that perform reliably over the long term – technically, economically and organisationally.

Use of modern processes and resources

With our efficient solutions and technologies, we enable economical and sustainable road maintenance with minimal intervention.

Multimac® (DDK/DSK), surface treatment and joint remix

Modern preservation methods such as Multimac®, DDK/DSK, surface treatment and joint remix allow for fast and economical road rehabilitation with minimal traffic impact. For clients, this means fewer closures, lower costs and a significantly extended service life of existing infrastructure. Thin-layer systems such as DDK/DSK (Multimac®) level out rutting, improve skid resistance and reliably seal the surface without requiring extensive structural renewal. Surface treatment provides additional protection against water ingress into the existing road structure. Additionally, joint remix is used to thermally treat damaged sections at an early stage and reintegrate them into the road structure. This allows near-surface defects to be repaired economically without full reconstruction of the entire road surface. All methods can be applied flexibly, conserve resources and are particularly suitable for municipal networks, rural roads and heavily used traffic areas where rapid reopening to traffic is critical.

Jointing technology and Multimac in road maintenance applications

Combination of DDK/DSK + surface treatment: maximum effect in one operation

For road sections with complex damage patterns, roxit combines cold-applied thin overlay (DDK) and surface treatment (OB) in a coordinated composite method. The DDK/DSK layer levels out deformations and unevenness; the surface treatment applied on top seals the pre-profile and improves the skid resistance of the surface layer. Compared to using either method alone, this combined approach also addresses structural weaknesses that a surface treatment alone cannot resolve – while remaining more cost-effective than a full rehabilitation. This composite method has proven particularly effective on municipal roads and rural roads with pronounced rutting and incipient cracking.

Tanker sprays milk of lime or hydrated lime along a carriageway, creating a visible layer of mist

Hydrated lime and milk of lime for better construction-site trafficability

When pre-spraying bitumen emulsion on the roadway, there is a risk that the freshly applied emulsion may be displaced by vehicles driving over it or lose its adhesive strength. roxit prevents this by spraying milk of lime directly over the applied emulsion layer. The hydrated lime acts as a separating agent, allowing the surface to be driven over during ongoing construction works, prevents contamination and preserves the adhesive strength of the emulsion for subsequent layer build-up.

Bitumen emulsion for post-treatment and evaporation protection

Base layers stabilised with binders must be sealed with evaporation protection immediately after compaction. This task is performed by bitumen emulsion from roxit. Without targeted protection, the surface may dry too quickly, which negatively impacts strength development and material properties. roxit therefore applies evaporation protection agents to the surface immediately after paving. They form a temporary protective film that controls moisture loss, stabilises curing time and ensures the desired material parameters. This method is particularly relevant in hot weather conditions, windy environments or large exposed areas.

Person takes a sample of bitumen emulsion from an industrial production plant with pipework and measuring equipment

Bitumen emulsions: in-house production ensures consistent quality and availability

The in-house production of bitumen emulsions at roxit ensures consistently high quality across preservation applications such as Multimac® (DDK/DSK), surface treatment or pre-spraying. This provides reliable product properties, repeatable results and project execution that remains independent of supply bottlenecks or fluctuations in material quality. Close coordination between the laboratory, production and construction site allows emulsions to be precisely tailored to the substrate, temperature and application method. More details on properties, types and areas of application can be found in the section covering our bitumen emulsions.

Joint and edge treatment: securing long-term layer bond integrity

Construction joints and edge transitions are critical weak points in any asphalt structure. If not treated properly, water can penetrate, accelerating layer degradation through freeze-thaw cycles and leading to isolated defects that may develop into more extensive structural damage. roxit treats construction joints and edges by applying the required amount of binder directly to the paved asphalt layer. STARPLAST® PM, a material specifically developed for this purpose, is used to improve adhesion and supplement the binder at the connection point. The material is applied using purpose-built equipment – after application, the next layer can be placed. The result: tight, adhesive joints and edges that secure interlayer bond integrity throughout the entire pavement structure.

Excavator loads aggregate into a road construction machine while people in protective clothing operate the process

Impregnations

Penetration treatment is used in selected countries on lower-category roads and on specially constructed paths and surfaces. The process creates base layers from aggregates with a grain size of up to 63 mm by hot asphalting and is particularly well suited for cases where the economical construction of load-bearing foundations is required. The constructed base layer is usually sealed with a two-layer asphalt surface. The result is a resilient, durable structure, even in locations with difficult substrate conditions. Typical areas of application: rural roads, industrial service roads, access roads, areas with substrates that are not fully stabilised.

Machinery and technical equipment

Our efficiency in road construction and road rehabilitation is built on a fleet of modern machinery, which includes the following production resources:

Milling with various working widths (including 3D levelling)
Multimac® (DDK/DSK) for thin-film systems
Wide-spray equipment for bitumen emulsions and specialised equipment for flank coating
Joint cutters and grouting equipment

Our innovative technical equipment enables:

precise execution
short construction times
economical execution of even large-scale projects

Sustainability through preservation of existing infrastructure

Our processes are designed to preserve existing infrastructure rather than replace it, reducing resource consumption and environmental impact:

Road surface is treated with bitumen emulsion while a lorry is in operation on a narrow road in the forest

Rehabilitation instead of new construction, wherever technically feasible
Cold construction methods with reduced energy consumption
Recycling asphalt and building materials to conserve resources
Biodiversity and ecosystems (obligation to assess environmental impact as early as the planning phase, selection of environmentally responsible methods, implementation of mitigation and compensation measures)
Occupational safety and social responsibility
Digitalisation to optimise processes
EU taxonomy-compliant ESG processes

Zero emissions along the entire value chain

In our climate strategy, we have set ourselves the goal of achieving climate neutrality by 2040.
To reach this goal, we focus on the following measures:

Reducing energy and fuel consumption
Optimising construction processes
Use of low-emission materials
Digitalisation to minimise errors and downtime (BIM, CDE/ACC)

Certified quality, safety and sustainability in road construction and civil engineering

For you as the client, it is essential that road construction and rehabilitation measures are carried out in a demonstrably safe, environmentally responsible and quality-tested manner. roxit operates one of the most comprehensive management systems in the industry. The majority of our units are certified according to ISO 14001 or registered under EMAS (Eco-Management and Audit Scheme), which goes beyond ISO 14001 and imposes stricter requirements in terms of transparency, legal compliance and employee participation. This involves regular audits to ensure, among other criteria, transparent environmental indicators and continuous improvement of standards on construction sites and at workplaces. In addition, ISO 9001 (quality), ISO 45001 (occupational health and safety) and ISO 50001 (energy management) ensure reliable and standards-compliant execution in selected roxit units. For our clients, this means transparent standards, documented processes and a high level of safety in planning and execution.

Key facts and figures

Important company facts and performance metrics at a glance:

Machinery

172 milling machines
67 BSG units (for wide spraying)
13 Multimac/OB units
38 RC units
125 pavement saws
9 cold mix systems
13 lorries equipped with loading cranes

Performance 2025

3.294,222 m³ recycling
2.845,639 linear metres of joint treatment
37.140,020 m² milling work
49.568 tonnes of bitumen emulsions

Our references as a road construction company and specialised partner in traffic route construction

For our clients, reliable timelines, clear communication, transparent technical solutions and long-term serviceability of traffic areas are essential. In addition, they expect cost-efficient project delivery and streamlined execution from a single source.

Our reference projects include
- Rehabilitation of municipal road networks using DDK and surface treatment
- Restoration of heavily trafficked industrial and logistics areas
- Development of commercial and residential areas
- Spot repairs using Patchmatic and crack repair applications
- Traffic route construction projects with high requirements for availability and quality
Typical projects and use cases:
- Road and motorway repair and rehabilitation: repair of cracks, joints and pavement edges to extend the service life of asphalt layers.
- Road recycling (cold on-site): full surface renewal without material removal, ideal for rural roads, industrial areas or lightly trafficked roads.
- Lime soil stabilisation for transport infrastructure: improving substrate load-bearing capacity for applications such as new roads, roundabouts or bridge embankments.
- Concrete surface segmentation and maintenance: logistics centres, airport taxiways, freight transport parking areas.
- Soil stabilisation for building foundations: treatment of weak substrates under halls, warehouses, industrial facilities or administrative buildings.
- Concrete surfaces in industrial areas: segmentation and repair of concrete surfaces in industrial areas, warehouses and production facilities.

Selected reference projects

Our projects – from planning to execution

Motorway construction site on the D1 in the Czech Republic with road milling machine and lorry removing the carriageway; traffic continues to move in parallel

Motorway D1 – repair of CB road V km 241.5 to 246 L+R, Czech Republic

Milling of asphalt and concrete layers as part of the D1 motorway project

Client: Strabag a.s. Olomouc Ing. Vašíček

Construction time/performance period: August 2025 - 16 days

Order volume: 8,041^m3 at a depth of 8.5 cm - milling

Curved section of the Masaryk Ring in Brno with several lorries and road construction machines in use

Brno - Masaryk Ring

Three two-metre milling machines were used, controlled by the Smooth Right system. 3D milling technology

Client: Strabag a.s. PJ Brno Ing. Igor Janča

Construction time/performance period: April 2025 - 16 days

Order volume: 82,228 m² at a depth of 6.5 cm + 9,152 m² at a depth of 4.5 cm.

Preserving existing roads rather than building new ones?

Contact us for project-specific advice, an assessment of rehabilitation vs. new construction or a non-binding offer for road construction, asphalt works or road refurbishment.

Inquire now

FAQ/frequently asked questions about road maintenance

When does it make more sense to rehabilitate a road than to build a new one?

Road maintenance/road rehabilitation makes more sense than new construction if the base layer is still intact and only the surface is damaged. In such cases, a maintenance measure can significantly extend service life and while reducing costs and closure times.
How long do road maintenance works take?

This depends on the scope and method used. Many maintenance measures (such as thin-layer technology or Patchmatic) can be completed in a short time, allowing traffic areas to be reopened quickly.
Are the methods used sustainable?

Yes. By preserving existing infrastructure, using cold construction methods and recycling processes, energy consumption and CO₂ emissions are reduced. At the same time, the infrastructure’s service life is extended.
Which types of damage can be treated?
- Surface deterioration
- Incipient cracking
- Loss of skid resistance
- Moisture ingress
Does roxit provide support for selecting the right measure?

Yes. We assess the condition of the road, the base layer and usage requirements and then recommend an economically viable solution with a clear focus on preservation, wherever technically possible.
Which areas of application does roxit cover?

We work in municipal road construction, development projects, traffic route construction, on industrial and commercial sites, car parks, cycle paths and selected motorway sections.
Can smaller areas such as courtyards and driveways also be rehabilitated?

Yes. With methods such as Patchmatic, cold asphalt and surface treatment, even smaller areas can be repaired economically.
What role does asphalt construction play at roxit?

We perform pre-spraying work for layer bonding in asphalt road construction.
How do I find the right contact person?

roxit’s regional structure provides you with local contacts in your area. Upon request, we will connect you directly with the right contact for your road construction or road rehabilitation project.