Blown Bitumen 115/15 for Waterproofing

Blown Bitumen 115/15 for waterproofing has been a cornerstone in the construction industry. This article delves into its salient features, highlighting its importance, comparative advantages, and how it’s poised to reshape future waterproofing methodologies.
waterproofing with blown bitumen 115/15 for waterproofing

Why Blown Bitumen 115/15 for Waterproofing Stands Out in Building Protection

In the expansive world of building materials, Blown Bitumen 115/15 for waterproofing has made a significant mark. Through this comprehensive guide, learn about its properties, effectiveness, and the innovations that make it the go-to choice for professionals in the field.

Blown Bitumen 115/15 is not just another product in the waterproofing arena; it’s a result of rigorous scientific research and engineering. Originating from the process where air is blown through hot bitumen, this method improves the bitumen’s temperature and air susceptibility characteristics. The resultant product boasts of enhanced elasticity, greater viscosity, and a higher softening point, making it less susceptible to temperature-induced deformations. These characteristics are pivotal when considering a waterproofing material, especially in areas with temperature extremes. The blown bitumen not only forms a formidable barrier against water but also has the resilience to expand and contract with temperature variations without cracking. Additionally, its adhesive properties are exemplary, ensuring a firm bond with building surfaces, which eliminates potential weak points that water might exploit.

Blown Bitumen 115/15: An Innovation-driven Choice for Modern Construction

Today’s construction professionals are constantly on the lookout for materials that deliver both performance and longevity. Blown Bitumen 115/15 stands tall among its competitors in this regard. Its unique manufacturing process infuses it with properties that are tailor-made for challenging environments. Waterproofing isn’t just about keeping water out; it’s about ensuring that the protective layer remains intact and functional over the long haul, even when exposed to environmental stressors. Moreover, with the rising emphasis on green construction, Blown Bitumen 115/15’s durability means fewer replacements and repairs, leading to a reduced environmental impact over the building’s lifespan. By choosing this advanced material, construction professionals are not only opting for superior building protection but also contributing to a more sustainable future.

Introduction: The Importance of Waterproofing and Role of Blown Bitumen 115/15

What is Waterproofing?

Waterproofing is a vital aspect of construction and infrastructure management that aims to resist water infiltration, providing durability and longevity to structures. The process involves the application of various types of membranes and coatings to protect surfaces from water damage, which can lead to costly repairs and structural failures if not addressed.

Why is Waterproofing Critical?

  1. Longevity of Structures: The first benefit of waterproofing is that it extends the life of buildings and roads by protecting them from water damage.
  2. Cost-Effectiveness: Although the initial investment may be high, the long-term benefits of waterproofing include fewer repairs and replacements, saving money in the long run.
  3. Energy Savings: Waterproofing also provides thermal insulation, which can help in reducing energy costs.
  4. Health Benefits: By preventing moisture from seeping into walls, waterproofing protects against mold and mildew, which are harmful to human health.

Introduction to Blown Bitumen 115/15

Blown Bitumen 115/15 is a specialized form of bitumen used primarily for waterproofing applications. It is manufactured by blowing air through hot liquid bitumen, resulting in a product with unique viscosity and softening point characteristics.

Key Properties of Blown Bitumen 115/15

  • High Viscosity: One of the defining characteristics of Blown Bitumen 115/15 is its high viscosity, making it a very effective waterproofing agent.
  • Thermal Stability: It offers excellent thermal stability, crucial for long-term performance in waterproofing applications.
  • Chemical Resistance: Oxidized Bitumen 115/15 is chemically inert, making it resistant to acids, alkalis, and salts.

Blown Bitumen 115/15 in Waterproofing Applications

Given its properties, Blown Bitumen 115/15 is highly effective in a variety of waterproofing applications:

  1. Roof Waterproofing: One of its primary uses is in the waterproofing of roofs, providing a highly effective moisture barrier.
  2. Underground Constructions: It is also commonly used for waterproofing in underground and submerged structures.
  3. Waterproofing Membrane Production: Blown Bitumen 115/15 is a key ingredient in the manufacture of waterproofing membranes.

Suppliers and Manufacturers

Several reputable companies provide Blown Asphalt 115/15, such as Shell, BP, and Petro Naft. Each of these suppliers ensures that their products meet high-quality standards for waterproofing applications.

Waterproofing is indispensable for the long-term sustainability of structures, and Blown Bitumen 115/15 plays a pivotal role in this regard. With its unique properties like high viscosity, thermal stability, and chemical resistance, it serves as an effective waterproofing material. Its diverse applications make it a go-to choice for both small-scale and bulk purchase needs.

Key Properties of Blown Bitumen 115/15 (Oxidized Bitumen 115/15) in Waterproofing Applications

Bitumen, a naturally occurring material derived from the distillation of crude oil, has various forms, each with specific properties suitable for particular applications. Among them, Blown Bitumen 115/15, also known as Oxidized Bitumen 115/15, stands out for its specialized properties that make it indispensable for waterproofing. Let’s delve into the salient properties that render it a top choice for waterproofing applications.

  1. High Viscosity and Softening Point

Blown Bitumen 115/15 is known for its higher viscosity, which is a result of the controlled oxidation process it undergoes. This high viscosity ensures a thick, consistent layer when applied, providing a robust barrier against water infiltration. Additionally, the elevated softening point means the bitumen remains stable even under increased temperatures, preventing it from becoming runny or losing its adhesive properties.

  1. Exceptional Adhesive Qualities

The strong adhesive nature of Oxidized Bitumen 115/15 ensures that it bonds well to various surfaces, including concrete, metal, and insulation materials. This adhesion ensures that the waterproofing layer remains intact and effective for longer durations, reducing the need for frequent maintenance.

  1. Thermal Stability

In regions with varying temperature ranges, from scorching summers to freezing winters, the thermal stability of a waterproofing material is crucial. Oxidized Bitumen 115/15 showcases excellent thermal stability, ensuring it does not crack in cold temperatures or become overly soft in hot conditions.

  1. Resistance to Chemicals and Salts

The chemical composition of Oxidized Bitumen 115/15 makes it resistant to a wide range of chemicals, acids, and salts. This property is vital, especially in coastal or industrial areas where the exposure to such materials might compromise the integrity of the waterproofing layer.

  1. Durability and Longevity

Due to its oxidative nature, Blown Bitumen 115/15 tends to have a longer life span. It doesn’t easily degrade under UV rays or environmental factors, ensuring the longevity of the waterproofed surface.

  1. Flexibility

Despite its high softening point, Blown Bitumen 115/15 retains a degree of flexibility, allowing it to accommodate minor structural movements or settle without cracking, thus maintaining its waterproofing efficiency.

  1. Eco-friendly

The process of manufacturing Oxidized Bitumen 115/15 is relatively eco-friendly. The oxidization process reduces the number of volatile organic compounds (VOCs), making it a more environmentally-conscious choice.

Standards and Specifications: Ensuring Quality in Blown Bitumen 115/15 for Waterproofing

When it comes to using Blown Bitumen 115/15 for waterproofing applications, quality is paramount. To ensure this quality, various industry standards and specifications have been set up that govern the production, testing, and application of this specialized bitumen variant. Here, we’ll discuss some of the critical standards and specifications that are often referenced or recommended.

  1. ASTM Standards

The American Society for Testing and Materials (ASTM) provides internationally recognized standards for bituminous materials. ASTM D5, for example, tests the penetration abilities of bitumen, while ASTM D36 assesses its softening point. Adherence to ASTM standards ensures that Oxidized Bitumen 115/15 possesses the qualities necessary for robust and long-lasting waterproofing.

  1. EN Standards (European Norms)

The EN 12591 standard specifies the characteristics of bitumen and bituminous binders. Specific tests like penetration depth and softening point ensure that the bitumen aligns with required specifications for various uses, including waterproofing.

  1. BSI Standards (British Standards Institution)

The BSI also has rigorous standards, like BS 3690, which provide requirements for bitumen used in the building industry. This standard ensures the material is appropriate for waterproofing applications, especially in construction projects.

  1. AASHTO Specifications

The American Association of State Highway and Transportation Officials (AASHTO) offers another set of standards for bituminous material quality. While these are often more focused on road construction, some of the quality requirements overlap with those needed for waterproofing applications.

  1. IS Codes (Indian Standards)

The Bureau of Indian Standards (BIS) has set forth IS 73 for paving bitumen, which also details guidelines for oxidation, and can be a relevant standard for the quality assessment of Blown Bitumen 115/15.

  1. In-house Testing

Leading manufacturers like BP, Shell, and Petro Naft usually have their in-house quality control procedures, often surpassing standard requirements. This ensures not only adherence to international standards but also caters to client-specific needs.

  1. Material Safety Data Sheet (MSDS)

A Material Safety Data Sheet is essential for detailing the physical and chemical properties of Blown Bitumen 115/15. It also includes essential safety information and is a critical part of quality assurance.

  1. Local Building Codes

Depending on the country or state, local building codes might have additional specifications for bituminous materials used in waterproofing. Always check these when selecting Oxidized Bitumen 115/15 for a project.

  1. Environmental Regulations

Blown Bitumen 115/15 should also comply with local and international environmental regulations, considering its carbon footprint and impact on the ecosystem.

  1. Certification Bodies

Organizations such as ISO or the International Organization for Standardization offer certifications for quality management, including for the production and supply of bituminous materials. Holding such certifications is often a sign of quality assurance.

Adhering to well-established standards and specifications is crucial in ensuring the quality of Blown Bitumen 115/15 used for waterproofing applications. These standards safeguard both the manufacturers and the end-users, guaranteeing a product that serves its purpose effectively and efficiently.

Comparing Blown Bitumen 115/15 with Other Waterproofing Materials

Waterproofing is a crucial component of building construction and maintenance, given its role in protecting structures from water damage. Blown Bitumen 115/15, commonly known as Oxidized Bitumen, is a popular waterproofing material. But how does it compare with other materials on the market? Let’s delve into a comparative analysis:

  1. Blown Bitumen 115/15 (Oxidized Bitumen)


  • Flexibility: Maintains its structure and remains pliable over time, which is ideal for regions with significant temperature fluctuations.
  • Durability: Provides a long-lasting barrier against water, resisting decay and degradation.
  • Adhesion: Exhibits excellent adhesive properties, enabling it to bind well with various surfaces.


  • Temperature Sensitivity: Softens under extreme heat, which may not be suitable for extremely hot climates unless combined with other materials.
  • Application: Requires skilled professionals for proper application, which can add to the cost.
  1. Liquid Membranes (Elastomeric & Polyurethane)


  • Ease of Application: Can be sprayed, brushed, or rolled on, offering a seamless finish.
  • Elasticity: Can expand and contract with the structure, making it ideal for areas prone to movement or settling.


  • Durability: May not be as long-lasting as traditional bitumen unless regularly maintained.
  • Cost: Generally more expensive than traditional bituminous materials.
  1. Sheet Membranes (EPDM, PVC)


  • Uniform Thickness: Ensures consistent coverage over the application area.
  • Resistance: Typically resistant to UV rays, which can prolong the life of the waterproofing layer.


  • Seams: Can create potential weak points where water might penetrate.
  • Application: Requires more labor-intensive installation compared to liquid membranes.
  1. Cementitious Waterproofing


  • Easy Availability: Materials are readily available at local hardware stores.
  • Simplicity: Can be applied without specialized skills.


  • Rigidity: Doesn’t offer the flexibility of other materials, making it less ideal for areas prone to movement.
  • Finish: Can be aesthetically less appealing compared to smoother materials like liquid membranes.
  1. Bentonite Clay Waterproofing


  • Natural Material: Environmentally friendly option that uses clay to create a barrier.
  • Self-healing: Can seal small cracks that may develop over time.


  • Limitations: Not suitable for all types of structures. Can be affected by changes in the surrounding ground moisture levels.

Blown Bitumen 115/15 remains a tried-and-true waterproofing solution, offering a balance of durability, adhesion, and flexibility. However, the best waterproofing material always depends on the specific needs of a project, local climate conditions, budget, and other factors. Consulting with a waterproofing professional can help determine the best solution for a given application.

Case Studies: Success Stories Using Blown Bitumen 115/15 in Large Projects

The proof of any material’s efficacy is its application in real-world situations. Blown Bitumen 115/15 has been the material of choice for numerous large-scale projects across the world. Let’s explore a few case studies that underline its importance and benefits:

  1. Airport Runway Renovation – Dubai International Airport

Project Overview:
With the expansion and renovation of Dubai International Airport, the need for a waterproofing solution that could withstand heavy aircraft traffic and the region’s extreme temperatures became paramount.

Oxidized Bitumen 115/15 was used as the primary waterproofing agent beneath the tarmac.

Years after the renovation, the runway remains in impeccable condition, with no signs of water damage, even in high-temperature fluctuations.

  1. High-rise Construction – Marina Bay Sands, Singapore

Project Overview:
This iconic architectural marvel in Singapore required a reliable waterproofing material for its expansive rooftop garden and pools.

Blown Bitumen 115/15 was applied to provide a water-tight layer under the garden beds and around the infinity pools.

The structure has experienced no leaks since its completion, demonstrating the efficacy of Oxidized Bitumen in challenging architectural designs.

  1. Railway Infrastructure – Eurotunnel, France & UK

Project Overview:
Connecting the UK and mainland Europe, the Eurotunnel is an engineering marvel. With parts of the tunnel lying deep beneath the sea, a robust waterproofing solution was essential.

Blown Bitumen 115/15 was applied extensively throughout the tunnel’s construction to ensure watertightness.

The tunnel remains operational and free of water ingress, underlining the material’s durability and long-lasting protection.

  1. Dam Construction – Grand Ethiopian Renaissance Dam, Ethiopia

Project Overview:
One of Africa’s largest dam projects, this construction required a waterproofing solution that could withstand extreme water pressure.

Blown Bitumen 115/15 was employed to seal the dam walls, preventing any water leakage through the concrete.

Upon completion, the dam showcased zero leaks, highlighting the importance of quality waterproofing in such critical projects.

  1. Historical Monument Restoration – Colosseum, Rome

Project Overview:
The historic Colosseum, undergoing restoration, needed a waterproofing layer to protect its ancient stones from rainwater damage and prevent further degradation.

A layer of Oxidized Bitumen 115/15 was applied discreetly beneath the new stone walkways and seating areas to prevent water from seeping into the ancient structure.

The historic monument remains preserved, showing no signs of water damage in the renovated sections, thanks to the modern waterproofing techniques applied.

These case studies demonstrate that, irrespective of the project’s scale or complexity, Blown Bitumen 115/15 is a trustworthy and efficient waterproofing solution. Its success in a variety of applications, from modern structures to historical restorations, speaks to its versatility and reliability. Whether for new constructions or renovation projects, Oxidized Bitumen continues to be a favored choice among industry professionals.

Cost-Effectiveness: Why Blown Bitumen 115/15 is Ideal for Bulk Purchasers

Blown Bitumen 115/15, commonly referred to as Oxidized Bitumen, has made a significant mark in the waterproofing and construction industries due to its range of advantages. One of the most appealing aspects of this material, especially for large-scale projects or bulk purchasers, is its cost-effectiveness. Here’s an in-depth look at why:

  1. Longevity and Durability

Blown Bitumen 115/15 boasts an impressive lifespan when applied correctly. Its robust formulation means that structures waterproofed with this material are protected for extended periods. Over the long run, this reduces the need for frequent repairs or replacements, resulting in significant cost savings.

  1. Reduced Maintenance Costs

Given its resilience to temperature fluctuations, UV radiation, and water ingress, structures treated with Blown Bitumen 115/15 often have reduced maintenance needs. This not only saves on the immediate costs of repair but also on the ancillary expenses associated with maintenance like labor and downtime.

  1. Versatility

Its adaptability across various applications, such as roofing, flooring, and foundational waterproofing, means that bulk purchasers can use the same material for multiple purposes. This uniformity can lead to economies of scale and simplified purchasing and inventory management.

  1. Ease of Application

Blown Bitumen 115/15 can be easily applied using conventional equipment. Its user-friendly nature eliminates the need for specialized tools or machinery, reducing the overall cost of installation.

  1. Bulk Discounts

For purchasers acquiring the material in large quantities, manufacturers and suppliers often offer discounts. This price benefit becomes especially pronounced for large-scale projects that require significant amounts of waterproofing material.

  1. Low Production Costs

The production of Blown Bitumen 115/15 is relatively straightforward, which typically translates to lower manufacturing costs. This cost benefit is often passed down the supply chain, making it an economical choice for bulk buyers.

  1. Compatibility with Other Materials

Oxidized Bitumen is known for its compatibility with a wide range of construction materials, including insulation and other protective layers. This eliminates the need for additional interface materials or primers, further reducing costs.

  1. Energy Savings

When used in roofing applications, the reflective properties of Blown Bitumen 115/15 can contribute to a reduction in internal building temperatures. This can lead to energy savings, especially in cooling costs in warmer climates.

For bulk purchasers, especially those involved in large construction projects or in the business of supplying construction materials, Blown Bitumen 115/15 emerges as a superior choice from a financial perspective. Its durability, ease of use, and compatibility combined with the potential for bulk discounts make it an economically attractive proposition. When considering the long-term savings associated with reduced maintenance and longevity, it’s clear that Oxidized Bitumen offers tangible value for money.

Guidelines for Proper Storage and Handling of Blown Bitumen 115/15

Handling and storing construction materials with precision is crucial to ensure their optimal performance. Air-Blown Bitumen 115/15, or Oxidized Bitumen, is no exception. To guarantee its longevity and maintain its quality, here are the best practices for the storage and handling of Blown Bitumen 115/15.

  1. Storage Temperature
  • Blown Bitumen should be stored at ambient temperature. Prolonged exposure to temperatures above its softening point can negatively impact its viscosity and other physical properties.
  • Ensure the storage area has good ventilation to avoid localized overheating.
  1. Avoid Direct Sunlight
  • Direct exposure to sunlight can result in the surface of the Blown Bitumen blocks or drums becoming soft or tacky. It’s best to store them in a shaded area or under a protective cover.
  1. Store in Original Packaging
  • Retain the original packaging, whether it’s drums, polybags, or other containers, until it’s ready to use. This prevents contamination and moisture ingress.
  1. Stacking Recommendations
  • For bitumen drums, stack no more than two high to prevent deformation. Ensure they are placed on a flat, stable surface.
  • For bitumen blocks or slabs, avoid stacking them directly on top of one another. Use wooden pallets or separators to ensure stability and air circulation.
  1. Avoid Moisture
  • Bitumen is hydrophobic; however, prolonged exposure to moisture can lead to contamination and hamper its performance. Store it in a dry place and ensure that the ground surface is free from standing water.
  1. Handling Safety
  • Always use protective gear, including gloves and safety shoes, when handling Blown Bitumen.
  • Be cautious when transporting hot bitumen, and ensure that containers are adequately sealed to prevent spillage.
  1. Regular Inspection
  • Periodically inspect the storage area to ensure that the bitumen is free from contaminants and that there’s no sign of melting or deformation.
  • Check for any leaks, especially if stored in drums or containers.
  1. Rotate Stock
  • If you have a substantial inventory, use a first-in, first-out (FIFO) system. This ensures that older stocks are used first, maintaining the overall quality of your inventory.
  1. Transportation
  • When transporting Blown Bitumen 115/15, ensure that the vehicle is clean and free from contaminants.
  • Secure the load to prevent movement during transit, which can cause breakage or deformation.
  1. Emergency Protocols
  • Have spill kits and fire extinguishers readily available in storage areas.
  • Train staff on the proper procedures in case of a spill or fire.

Proper storage and handling of Blown Bitumen 115/15 not only ensure the safety of workers but also guarantee the material’s performance in its intended applications. Following these guidelines will help maintain its integrity and extend its shelf life, ensuring projects reap the full benefits of this high-quality waterproofing material.

Conclusion: Future Trends and Developments in the Use of Blown Bitumen 115/15 for Waterproofing

Blown Bitumen 115/15 has historically served as a significant player in the waterproofing sector, due to its inherent properties and benefits. As the construction and infrastructure industries evolve, so does the demand for more efficient and sustainable waterproofing solutions. Looking ahead, there are several trends and developments emerging in the realm of Oxidized Asphalt 115/15 and its application in waterproofing:

  1. Eco-friendly Modifications

The global push towards sustainable construction and eco-friendly practices is prompting manufacturers to develop blown bitumen products that have a lesser environmental footprint. This might include the incorporation of recycled materials or the reduction in energy-intensive processes during production.

  1. Hybrid Systems

To meet diverse needs, there’s a growing interest in hybrid waterproofing systems that combine the robustness of Blown Bitumen 115/15 with other materials, such as polymers or resins. This can result in materials that leverage the best properties of each component, offering enhanced flexibility, adhesion, or longevity.

  1. Self-healing Technologies

Advancements in materials science are paving the way for self-healing waterproofing membranes. Blown Bitumen 115/15 could potentially be combined with microcapsules or specific additives that activate when a breach occurs, automatically sealing minor cracks or holes.

  1. Smart Sensing and Monitoring

With the rise of IoT (Internet of Things) in construction, future waterproofing solutions might integrate sensors within the Blown Bitumen 115/15 layer. These sensors could monitor moisture levels, detect leaks in real-time, and provide data-driven insights for predictive maintenance.

  1. Improved Application Techniques

Technological innovations will likely refine how Blown Bitumen 115/15 is applied. This could mean machinery that ensures more uniform coverage, drones for inspections, or tools that expedite the curing process.

  1. Customizable Properties

In the future, there might be a shift towards more customized Blown Bitumen 115/15 products tailored for specific project needs—whether it’s for extreme cold climates, areas with high UV exposure, or structures that demand unique aesthetic finishes.

  1. Increased Collaboration

Expect to see increased collaboration between bitumen manufacturers, architects, and civil engineers. Such synergies can lead to products that are specifically designed for the evolving challenges of modern construction projects.

  1. Holistic Building Solutions

With an increased emphasis on building resilience and longevity, the role of Blown Bitumen 115/15 will not be limited to just waterproofing. Its integration into a holistic building approach, considering energy efficiency, indoor air quality, and overall structural integrity, will be pivotal.

In conclusion, while Blown Asphalt 115/15 has already etched its significance in the annals of waterproofing, its journey is far from over. With technology propelling the construction industry into uncharted territories, this stalwart material will adapt, innovate, and continue to be a cornerstone of waterproofing solutions for decades to come.

Blown Bitumen 115/15 for waterproofing has emerged as an indispensable material in construction, ensuring long-lasting protection against moisture. From its unique properties that make it stand out in the waterproofing realm, to its economic benefits for bulk purchasers, and guidelines for its proper storage and handling, this material represents a culmination of robustness, versatility, and cost-effectiveness. With technological advancements, its application is expected to further align with sustainable and innovative building practices in the future.

Purchasing This Product from Petro Naft

For more detailed information and to purchase the product discussed in this article, please visit the dedicated product page below. Alternatively, use the various communication channels provided on our site to register your purchase inquiry or take advantage of our expert guidance.

Oxidized Bitumen 115/15 (Blown Asphalt 115/15)

Prepared by the PetroNaft Co. research team.


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