Strata Global

Asphalt roads

What is asphalt?

Asphalt is a composite material obtained by the result of commixing mineral aggregates and the distillation by-product known as bitumen, which is obtained from petroleum. A long-lasting cost-effective product used mainly in road construction and rehabilitation, asphalt’s smooth elastic flexible features make it an indispensable raw material in the infrastructure industry. Its multiple applications range from road applications to sound insulation, waterproofing, or even roofing.

Asphalt is manufactured in specific plants where bitumen and aggregate are heated to such temperatures that they can bond properly. Such a process produces a homogenous blend, which is required to ensure the material’s functionality and longevity. Classification of asphalt depends on the mode of production and the use it is intended for:

  1. Hot Mix Asphalt (HMA) is manufactured at temperatures ranging from 150°C to 180°C. This type is the most widely used because of its strength and durability.
  2. Warm Mix Asphalt (WMA): WMA consumes less energy as its production temperature reduces, with less emission plus great quality.
  3. Cold Mix Asphalt: It does not require heat, and therefore applicable for patchwork and spot repairs.

What are asphalt roads?

Asphalt roads are a class of road surface consisting of multiple layers of asphalt material. The roads are valued for their smoothness, durability, and cost, which makes them the best choice worldwide. Asphalt roads are highly suitable for high-density areas such as highways, urban streets, and runways at airports

What are the benefits of asphalt roads?

Asphalt roads have many advantages; therefore, they are the choice of modern infrastructure.

1. Affordability

Asphalt is relatively cheaper than any other paving material, especially compared with concrete. It minimizes costs in terms of construction and maintenance, making it a sensible choice for large projects.

2. Durability

The strong characteristics of asphalt enable it to withstand extreme weather conditions and heavy traffic forces with minimal loss in quality. Asphalt roads can last for decades if kept in appropriate construction ways.

3. Smooth and comfortable driving experience

The smooth surface of asphalt reduces the wear and tear of vehicles while also improving their fuel efficiency. The ride is quieter and more comfortable on asphalt roads compared to other materials.

4. Noise reduction

Asphalt is flexible and thus absorbs sound, thereby reducing the resultant noise pollution created by vehicles, making it suitable for urban areas as well as residential neighborhoods.

5. Recyclability

One of the most significant environmental benefits of asphalt is its recyclability. Reclaimed asphalt can be repurposed to construct new roads, thereby minimizing waste and conserving natural resources.

6. Weather resistance

Asphalt has heat-absorbing properties that help melt snow and ice during winter. It minimizes cracking due to temperature fluctuations, ensuring long-lasting performance.

How is asphalt used in road construction?

Asphalt also plays an important role in building road networks. The principal use of asphalt is as under:

  1. Base layer construction consists of asphalt, which adds strength and stability to the road structure.
  2. Pavement surfacing: Asphalt is used to build the uppermost layer of the road, which should be smooth and durable for driving.
  3. Patching and repairs: Cold asphalt mix is widely used for quick repairs such as filling potholes and sealing large cracks.
  4. Specialized applications: Airports, seaports, and sports facilities employ asphalt due to its remarkable durability and adaptability.

Why is asphalt preferred over concrete for roads?

Although concrete has its advantages as well, in construction for roads, asphalt is usually favored due to the following:

  1. Quicker installation: Asphalt roads can be constructed more rapidly than concrete roads, thereby minimizing downtime and inconvenience for commuters.
  2. Cost-effectiveness: Asphalt is more cost-effective in both construction and maintenance.
  3. Flexibility: Asphalt’s ability to expand and contract with temperature changes reduces the risk of cracking.
  4. Ease of maintenance: Many of the deteriorated asphalt roads could be repaired easily, and relatively quickly with minimal discomfort.

How long do asphalt roads last?

The lifespan of an asphalt road depends on several factors. These include the quality of materials used, construction methods, and maintenance practices. Generally:

  1. Highway roads: 15-20 years with proper maintenance.
  2. Residential streets: 20-30 years due to lower traffic volumes.
  3. Parking lots: Approximately 15 years, depending on use.

Seal coating and patching are routine maintenance activities that could increase the lifespan of asphalt roadways dramatically.

How are asphalt roads maintained?

Asphalt roads are maintained through many practices that ensure their long duration and performance:

  1. Regular inspections: Identifying and addressing minor issues before they escalate.
  2. Seal coating: Applying a protective layer to prevent moisture infiltration and UV damage.
  3. Crack sealing: Filling cracks to prevent water from seeping into the base layers.
  4. Pothole repairs: Using cold mix asphalt for quick and efficient patching.
  5. Resurfacing: Adding a new layer of asphalt to restore the road’s smoothness and durability.

How does asphalt contribute to sustainability?

Asphalt is a sustainable material that is in harmony with contemporary environmental objectives. The following delineates its contributions:

  1. Recyclability: Reclaimed asphalt pavement (RAP) is often reused, reducing the need for new materials.
  2. Energy efficiency: Warm mix asphalt production requires less energy, lowering greenhouse gas emissions.
  3. Reduced waste: Asphalt’s ability to be repurposed minimizes landfill contributions.
  4. Urban heat island mitigation: Asphalt’s heat-absorbing properties can be optimized to reduce urban heat island effects.

With great benefits to be derived-from cost effectiveness, durability and an environmental aspect- asphalt road bases for current infrastructure can offer nothing alike for asphalt roads in relation to maintaining flexibility, tolerance for heavy flow, changes in temperature levels, and their reusage. Thus, routine servicing methods and recent innovation such as Warm Mix Asphalt has been encouraging the efficiency of the services on the highways.

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Harold W. Hill, Jr

Director, President – Glen Raven Technical Fabrics

Strata/Glen Raven tenure: 10 years/28 years
Total industry experience: 35 years


MBA – Wake Forest University

 

Directs the strategic direction of Glen Raven’s automotive, protective apparel, military, geogrid, outdoor and logistic businesses.

J. Craig Bell

Director, General Manager, Strata Inc.

Strata/Strata Inc. tenure: 3 years/14 years
Total industry experience: 25 years


MBA – Georgia State University

 

Led the integration of Strata Inc. business operations into the headquarters of GRTF and transition from USA based to India based manufacturing.

Ashok Bhawnani

Director

Strata tenure: 17 years
Total industry experience: 47 years

CA – ICA

 

Played a key role in the establishment of Strata’s India operations. Provides vision for product innovation and leveraging new technology trends.

Phil McGoldrick

Global Technical Sales Director

Strata tenure: 7 years
Total industry experience: 32 years


Civil & Geotechnical Engineer (First class)


Provides highly technical and innovative civil engineering solutions in India and around the world. Responsible for the design and execution of large-scale geotechnical projects around the world including Australia, Asia, Europe, Africa, Middle East, and South America.

Shahrokh Bagli

CTO – Chief Technology Officer

Strata tenure: 9 years
Total industry experience: 48 years


BTech (Hons), MTech (Civil) Both IIT Bombay, DMS (Bombay University), FIE, FIGS, Chartered Engineer

 

Streamlines the designs of Geosynthetics and has brought innovation in geogrid and geocell design application.

Mujib Katrawala

COO – Projects and Sales

Strata tenure: 13 years
Total industry experience: 24 years


MBA – University of Gujarat

 

Leads the monetization of products and solutions while ensuring highest execution quality and project profitability.

Chandrashekhar Kanade

COO – Technical Textiles

Strata tenure: 13 years
Total industry experience: 33 years


BE (Mechanical) – Nagpur University

 

Drives excellence in process design, product features and cost effectiveness in production.

Govind Keswani

CFO – Chief Financial Officer

Strata tenure: 8 years
Total industry experience: 35 years


CA – ICA, ICWA – ICWAI

 

Leads the finance, accounting, taxation, commercial, legal and IT functions and assisting on all strategic and operational matters.

Gautam Dalmia

CDO – Chief Development Officer

Strata tenure: 10 years
Total industry experience: 13 years


MBA – ISB, Hyderabad

 

Leads diversification of the product portfolio, monetizing the new products and ensuring successful sustained financial growth of the company top line.

Narendra Dalmia

CEO – Chief Executive Officer

Strata tenure: 14 years
Total industry experience: 42 years


B Tech (Chemical) – IIT Delhi

 

Leads day-to-day business operations of the company with focus on capacity expansion, product and process improvement.

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