Explore our top-tier machinery and materials designed for long-lasting infrastructure repair and asphalt pavement durability.
Bridging Academic Rheological Engineering with High-Throughput Manufacturing for Global Infrastructure Asset Management.
In modern pavement management systems (PMS), premature road degradation caused by water infiltration, freeze-thaw cycles, and high axle-load stresses presents an ongoing challenge for municipal authorities and highway operators globally. As an established OEM Pothole Repair Mix Manufacturer & Supplier, HEM Group (originally established in 1998 as Xi'an Hongda Communications Technology Co., Ltd. by distinguished professors from Chang'an University) delivers science-driven formulations and integrated application machinery engineered to solve pavement failure at the molecular and structural level.
Effective pothole remediation requires more than temporary aggregate dumping. It demands an engineered balance of high-viscosity modified bitumen binders, elastomeric polymer networks, precisely graded crushed basalt/granite aggregates, and surface-active adhesion promoters. Whether delivering ready-to-use cold patch asphalt repair mixes for emergency winter operations or high-performance hot mix asphalt additives for structural rehabilitation, our manufacturing systems ensure complete mechanical stability, instant traffic-bearing capability, and zero stripping under extreme moisture stress.
Decoupling the Chemistry Behind High-Durability Pothole Repair Formulations.
Utilizing Styrene-Butadiene-Styrene (SBS) and Crumb Rubber Modifiers (CRM), our binder matrix retains elastic recovery up to 85%, resisting fatigue cracking under repetitive heavy axle loadings.
Chemically bonded silane additives convert hydrophobic stone aggregate surfaces into hydrophilic-resistant bonds, preventing moisture-induced debonding in sub-zero and wet-pothole conditions.
100% crushed high-hardness basalt aggregates (LA Abrasion < 15%) selected via precise gradation curves to guarantee structural interlock and eliminate rutting and displacement under traffic.
| Performance Metric | HEM OEM Polymer Cold Patch | Standard Cutback Cold Mix | Traditional Hot Mix Asphalt (HMA) |
|---|---|---|---|
| Application Temp Range | -30°C to +50°C (All Weather) | 0°C to +30°C | +140°C to +170°C (Requires Heating) |
| Traffic Open Time | Immediate (Zero Curing Delay) | 2 to 24 Hours Curing | Requires Cooling Time (1 to 3 Hours) |
| Shelf Life / Stockpile | Up to 24 Months Bagged / 12 Mo Bulk | 1 to 3 Months Max | Zero (Must use within hours) |
| Marshall Stability (kN) | > 9.5 kN (High Load Capable) | < 4.0 kN (Temporary Only) | > 10.0 kN |
| Water Immersion Stripping | < 2% Stripping (Silane Enhanced) | 15% to 30% Stripping | 5% to 10% Stripping |
Navigating the Transition Toward Self-Healing Binders, Carbon-Neutral Cold Mixes, and Smart Pavement Diagnostics.
The road maintenance industry is undergoing a structural paradigm shift driven by stringent decarbonization goals, rising material costs, and demanding municipal SLAs. As a pioneering OEM supplier backed by Chang'an University’s pavement research infrastructure, our technology roadmap focuses on three next-generation pillars:
Incorporating micro-encapsulated bio-based fluxing agents within the cold patch matrix allows micro-cracks to heal autonomously under solar warmth and traffic pressure. When micro-fractures occur due to thermal stress, the micro-capsules rupture, releasing low-viscosity bio-rejuvenators that re-seal the bitumen network before water ingress can initiate a macro-pothole.
Traditional cold mixes historically relied on volatile organic solvents (kerosene or diesel cutbacks) to maintain workability. Our next-generation OEM chemical formulations utilize 100% water-based bio-emulsifiers integrated with nano-cellulose stabilizers. This achieves zero-VOC emissions during storage and compaction while providing high cohesion upon moisture evaporation.
By engineering high-shear rejuvenators, our OEM pothole mixes can incorporate up to 80% finely milled Reclaimed Asphalt Pavement (RAP). Coupled with slag aggregates and bio-binders, this yields a net carbon-negative cold repair material tailored for eco-conscious infrastructure projects worldwide.
Rooted in Academic Research Excellence Since 1998 — Full Lifecycle Road Maintenance Solutions.
HEM Group was founded by a group of professors from Chang'an University and leading experts in the road building industry in 1998 (originally named Xi'an Hongda Communications Technology Co., Ltd.). It represents the earliest high-tech enterprise dedicated to independent research and design of road construction equipment in China. In 2006, the company was recognized as a "High-tech Enterprise" by the Shaanxi Provincial Department of Science and Technology.
In 2017, to streamline international technical exchanges and global sales, HME TOP Machinery Equipment Co., Ltd. was established. Today, we operate a robust modern manufacturing base exceeding 5,000 m², producing high-end road maintenance equipment and material formulations that form an end-to-end ecosystem.
Pothole repair material performance is directly tied to application surface preparation. HEM Group offers a complete fleet of integrated machinery to ensure flawless road restoration:
Custom Formulated Pothole Repair Systems Designed for Diverse Structural Requirements.
Engineered for high volume, stop-and-go traffic. Compacts rapidly using standard hand tampers or small vibratory rollers, allowing immediate reopening of city lanes without traffic disruption.
Formulated with high dynamic shear stability to resist rutting and lateral displacement caused by high-speed heavy truck freight traffic under extreme summer pavement temperatures.
Zero FOD (Foreign Object Debris) guaranteed. High-cohesion polymer crosslinking prevents aggregate release under jet blast shear forces and heavy wheel impact upon landing.
Flexible matrix accommodates bridge expansion deck vibration and thermal movement without reflective cracking or bonding failure to steel/concrete substrates.
Unrivaled Production Capacity, Precision Quality Control, and Global Logistics Networks.
In the global chemical and construction material market, supply chain continuity and batch-to-batch consistency are vital. Our modern production complex in Shaanxi leverages automated Industry 4.0 batching architecture to produce consistent high-volume output with rigorous quality assurance.
Our facility features computer-controlled gravimetric aggregate feeding systems coupled with inline high-shear homogenizers operating at 3,600 RPM. This ensures that liquid additives, polymer binders, and fine fillers are uniformly coated over every single stone face, maximizing film thickness and curing kinetics.
Scalable automated packaging lines capable of bagging 20kg, 25kg, and 50kg UV-resistant pail/bag formats, alongside 1-ton bulk super-sacks for international container shipments.
Supported by dedicated distribution and service teams across Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, and Sri Lanka to guarantee prompt technical backup.
Custom packaging graphics, multi-language instructions, tailored chemical formulations for regional temperature profiles, and flexible FOB/CIF commercial terms.
Adhering to International Road Authority Engineering Standards and Material Specifications.
International civil engineering contractors and municipal road agencies require rigorous documentation prior to material procurement. All HEM OEM Pothole Repair Mix batches undergo batch-level quality control testing certified to international benchmarks:
Our dedicated export subsidiary, HME TOP Machinery Equipment Co., Ltd., handles all aspects of international trade including REACH/MSDS compliance documentation, customs clearance, containerized moisture-proof packing, and technical site deployment assistance.
Expert Answers to Technical, Operational, and Supply Chain Inquiries.
Comprehensive Heavy Machinery Solutions Exported to Over 60 Countries Worldwide.
HME Machinery