道路铺装
随着交通量的增长和更多的极端天气条件，对更安全、更可持续的基础设施方案的需求变得越来越迫切。 Kraton 在开发创新沥青改性技术方面处于领先地位，这些技术帮助建设成本效益更优、更耐用的道路。 我们的方案能提高道路性能，并延长使用寿命。通过提升道路的抗车辙性和抗开裂能力，降低道路维护成本、避免施工延误，减少交通中断。
作为沥青改性领域的先驱，我们的产品和遍布全球的供应网络使我们能够始终如一地为客户提供卓越的性能和加工性，以及可靠的供应。
道路铺装
可持续发展优势
环境保护
我们的聚合物是完全可回收的，并且由于路面寿命延长，使用我们的解决方案建造的路面具有更低的碳足迹。
经济发展
我们的道路铺装方案易于实施，需要最少的维护，从而减轻了整体经济负担。
社会影响
道路是社会良好运转的基础。 我们的解决方案让道路变得更好、更安全。
Airports
It takes a particular pavement to withstand repeated airplane landings and takeoffs. Kraton technology solutions are used at over 60 airports internationally to make runways and taxiways last longer while maintaining smoothness, preventing traffic disruptions, and saving maintenance budget.
Case Studies
HIMA™ and Conventional PMB
SBS polymer-modified bitumens (PMB) provide asphalt pavements with enhanced mechanical and aging characteristics. When used appropriately, PMBs enhance the pavements’ economic and environmental value. Kraton offers a broad range of SBS polymers designed to work in even the most complex bitumen sources, providing the right balance of material properties.
Asphalt pavements flex under traffic, making it crucial for the bitumen to be strong and resilient. With their unique molecular structure, Kraton polymers enhance durability by adding flexibility, elasticity, and toughness to the bitumen mixture. This reduces sensitivity to extreme temperatures and improves performance properties across a wide temperature range.
HiMA and conventional PMB encompass polymer loading levels of 2-8 wt—% of SBS in bitumen. As the modification level increases, the bitumen resists high-temperature deformation and intermediate-temperature cracking. The effect depends on polymer content, type, and the formulation process.
Emulsions
Emulsions are developed using HiMA™ or PmB and adding water plus emulsifier. SBS is blended into the base asphalt before emulsification, as opposed to modification with water-based, latex polymer dispersions.
Kraton D grades are the most technologically advanced and user-friendly polymer options for manufacturing pre-modified asphalt emulsions.
Benefits
Enhanced Polymer Compatibility
- Improved compatibility in a wide range of base asphalts
- Low shear blending option
- Streamline formulations through a single polymer
Superior Liquid Emulsion Properties
- Excellent initial and long-term emulsion viscosity and storage stability
- Improved resistance to shear and pumping processes
- Optimal balance of break and set properties
- Can tune emulsion viscosity easily as a function of residue content
Lower Modified Asphalt Viscosity
- Leads to smaller particle size and narrower distribution
- Allows for emulsification on ambient pressure equipment
- Potential for improved performance through higher polymer loading
Improved Emulsion Paving Solutions
- Better chip retention
- Extended pavement system durability
