Asphalt / Bitumen Road Construction
Reliable, durable, and cost-effective solutions for modern infrastructure development
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As a leading asphalt road contractor in Maharashtra, Shreeyash Construction specializes in the construction of flexible pavements using hot mix bitumen for highways, internal roads, and industrial zones. Our team uses advanced paver finishers and vibratory rollers to ensure a smooth and long-lasting finish. Whether you're planning a township approach road or bitumen road construction in Khopoli, Raigad, Pune, Mumbai — we deliver quality-driven execution with timely delivery.
Pavement Types
1. Flexible Pavements
- Made up of layers of materials that distribute traffic loads to the subgrade
- Deform when loaded but rebound after unloading
- Typically made up of subgrade, sub-base, base course, binder course, and surface course
2. Rigid Pavements with Bituminous Overlay
- Involves a rigid concrete slab base overlaid with a bituminous surface layer
- Improves riding comfort and enhances surface friction
- Protects the underlying structure from wear and environmental factors
Construction Methods
Hot Mix Asphalt (HMA)
Produced by heating the asphalt binder and mixing it with aggregates at 150–190°C.
- ✅ Suitable for high-traffic roads
- ✅ Requires high-quality control
- ✅ Needs rapid compaction after laying
Cold Mix Asphalt
Produced without heating, using emulsified or cutback bitumen, applied at ambient temperatures.
- ✅ Ideal for remote or low-traffic areas
- ✅ Can be stockpiled for later use
- ✅ Lower energy consumption and emissions
Warm Mix Asphalt
Produced at lower temperatures (100–140°C), offering environmental and cost advantages.
- ✅ Reduced emissions and energy use
- ✅ Extended paving season
- ✅ Improved workability and compaction
Bituminous Macadam (BM)
An open-graded bituminous base layer commonly used in rural and secondary roads.
- ✅ Uses larger aggregate sizes
- ✅ Provides good load distribution
- ✅ Often used as a base layer
Penetration Macadam
Aggregates are placed and bitumen is poured in layers to penetrate the structure.
- ✅ For low-traffic or temporary roads
- ✅ Simple construction technique
- ✅ Lower equipment requirements
Materials Used
Bitumen Types
- 60/70, 80/100 penetration grade
- Modified Bitumen (PMB, CRMB)
- Cutback and emulsified bitumen
Aggregates
- Crushed stone
- Gravel
- Well-graded and clean sand
Filler Materials
- Stone dust
- Hydrated lime
- Cement (in some cases)
Tack & Prime Coat
- Bitumen emulsions
- Cutback bitumen
- Enhances bonding between layers
Construction Techniques
Site Preparation
Excavation, clearing, grading, and compaction of subgrade to create a stable foundation for the road structure.
Sub-base and Base Course
Laid with granular material (WBM/WMM), compacted to design density to provide structural support.
Application of Prime Coat
Applied to base layer to promote bonding with the bituminous layers that will be placed above.
Binder Course
A bituminous intermediate layer designed to absorb stress and distribute loads from the surface to the base.
Tack Coat
Thin bitumen layer applied before the final surfacing to ensure proper bonding between layers.
Surface Course
Final layer (DBM or BC), providing smoothness, skid resistance, and protection from environmental factors.
Compaction
Carried out with vibratory rollers while the mix is hot to achieve target density and avoid air voids.
Design Considerations
Traffic Load Analysis
ESALs (Equivalent Single Axle Load) calculation to determine appropriate layer thickness based on expected traffic volume and composition.
Climatic Conditions
Temperature and moisture influence material choice and design parameters to ensure durability in local environmental conditions.
Subgrade Strength
CBR (California Bearing Ratio) test results guide pavement layer design to ensure adequate support from the foundation soil.
Drainage Design
Essential to prevent water accumulation and base layer deterioration, including proper cross slopes and drainage structures.
Surface Slope & Camber
Designed for proper water runoff and user comfort, with appropriate cross slopes and superelevation at curves.
Quality Control & Testing
Material Testing
Bitumen Testing
Penetration, ductility, softening point, viscosity, and flash point tests to ensure quality.
Aggregate Testing
Gradation, impact value, Los Angeles Abrasion (LAA), water absorption, and specific gravity tests.
Mix Design
Marshall Mix Design method or Superpave method to determine optimal mix proportions.
Field Tests
Density Testing
Nuclear density gauge or core samples to verify compaction meets specifications.
Core Cutting
Extraction of pavement cores to check layer thickness and bond between layers.
Surface Evenness
Straight edge or profilometer to measure surface regularity and riding comfort.
Compaction Testing
Temperature monitoring during compaction to ensure optimal rolling conditions.
Applications
National and State Highways
High-performance asphalt pavements designed for heavy traffic loads and high speeds, with multiple structural layers for durability.
Urban Roads and Expressways
Designed for moderate to high traffic volumes with special attention to noise reduction, drainage, and integration with urban infrastructure.
Industrial Roads
Heavy-duty asphalt pavements designed to withstand concentrated loads from industrial vehicles and equipment in manufacturing and logistics zones.
Airport Runways
Specialized high-strength asphalt pavements designed to withstand aircraft loads, with strict requirements for smoothness and durability.
Parking Lots
Asphalt surfaces designed for low-speed traffic with emphasis on proper drainage, marking visibility, and resistance to standing loads.
Need Expert Consultation?
Our team of experienced engineers can help you design and implement the perfect asphalt road solution for your specific requirements.