CUTBACK BITUMEN RC-70
INTRODUCTION OF CUTBACK BITUMEN RC-70
Cutback bitumen RC-70 is a widely used product in road construction and maintenance. It is a type of bitumen that has been dissolved in a petroleum solvent, making it easier to handle and apply. This page will explore various aspects of cutback bitumen RC70, including its history, production, chemical formula, properties, advantages, safety tips, factors affecting its price, applications, packaging, transportation, and storage.
Content Overview
Cutback bitumen RC-70 Brief Description
Cutback bitumen RC-70 is a black, semi-solid material that is used in road construction and maintenance. It is made by dissolving bitumen in a petroleum solvent, such as kerosene or diesel oil, to create a liquid that can be sprayed or poured onto road surfaces. The solvent then evaporates, leaving a solid layer of bitumen that adheres to the road surface. Cutback bitumen RC 70 is commonly used in warm climates where rapid evaporation of the solvent is required.
What is the Cutback bitumen RC-70?
Cutback bitumen RC-70 is a type of bitumen that has been mixed with a petroleum solvent to make it easier to handle and apply. Bitumen is a sticky, black, and highly viscous liquid that is a byproduct of crude oil distillation. It is commonly used in road construction and maintenance to provide a durable, waterproof, and skid-resistant surface. However, bitumen is difficult to handle and apply in its pure form, so it is often mixed with a solvent to create cutback bitumen.
Cutback bitumen RC-70 History
The use of bitumen in road construction dates back to ancient times, when it was used as a binding material for stone pavements. The first modern road constructed with bitumen was built in Paris in 1852. Over time, the use of bitumen in road construction became more widespread, and different types of bitumen were developed to meet specific needs. Cutback bitumen was first developed in the early 1900s as a way to make bitumen easier to handle and apply. The use of cutback bitumen became more widespread in the mid-20th century, with the development of new production techniques and the growth of the road construction industry.
Cutback bitumen RC-70 Other Names
Cutback bitumen RC-70 is also known as rapid-curing cutback asphalt or cutback asphalt RC-70. It is sometimes referred to simply as RC70 or cutback bitumen.
Cutback bitumen RC-70 Production
Cutback bitumen RC-70 is produced by mixing bitumen with a petroleum solvent, such as kerosene or diesel oil. The ratio of bitumen to solvent can vary, depending on the desired viscosity and curing time. The mixture is typically heated to around 150-180°C to facilitate mixing, and then allowed to cool to room temperature. The resulting product is a liquid that can be sprayed or poured onto road surfaces. Once the solvent evaporates, a solid layer of bitumen remains.
Cutback bitumen RC-70 Specifications
| property | specification limit | Test method | |
| Min | Max | ||
| Kinematic viscosity at 60°c ,cST | 70 | 140 | ASTM D2170 |
| Flash point(tag open cup), °c | — | — | ASTM D3143 |
Distillation test | |||
| to 437°f(225°c) To 500°f(260°c) to 600°f(316°c) Residue from distillation to 680°f(360°c), percent volume by difference | 50 | — | ASTM D402 |
| 70 | — | ||
| 85 | — | ||
| 55 | |||
| Test on Residue from distillation test | |||
| Penetration 77°f(25°c) 100g,5s mm | 80 | 120 | ASTM D5 |
| Ductility 77°f(25°c) 5cm/min cm | 100 | — | ASTM D113 |
| Solubility in trichloroethylene % | 99 | — | ASTM D2042 |
| Water, percent volume | — | 0.2 | ASTM D95 |
Cutback bitumen RC-70 Chemical Formula, CAS Number, and HS Code
The chemical formula for bitumen is CnH2n+2, where n is typically in the range of 20-40. Cutback bitumen RC-70 is a mixture of bitumen and a petroleum solvent, so it does not have a specific chemical formula. However, the solvent used in its production can vary, and may include kerosene, diesel oil, or other petroleum distillates. The CAS number for bitumen is 8052-42-4, and the HS code for cutback bitumen is 2714.10.00.
Cutback bitumen RC-70 Properties
Cutback bitumen RC 70 has a number of properties that make it suitable for use in road construction and maintenance. Some of these properties include:
Viscosity: Cutback bitumen RC70 has a relatively low viscosity, which makes it easier to handle and apply. The viscosity can be adjusted by varying the ratio of bitumen to solvent.
Curing time: RC-70 has a rapid curing time, which allows roads to be reopened to traffic quickly after application.
Waterproofing: Cutback bitumen RC-70 provides a waterproof layer that helps to protect the road surface from damage due to water penetration.
Skid resistance: The rough surface of cutback bitumen RC70 provides good skid resistance, which helps to prevent accidents on wet or slippery roads.
Durability: Cutback bitumen RC-70 is a durable material that can withstand heavy traffic and extreme weather conditions.
Cutback bitumen RC-70 Advantages
Cutback bitumen RC70 has several advantages over other types of bitumen and road surfacing materials. Some of these advantages include:
Ease of application: Cutback bitumen RC-70 is easier to handle and apply than pure bitumen, which can be difficult to work with.
Rapid curing time: RC70 has a short curing time, which means that roads can be reopened to traffic quickly after application.
Low cost: Cutback bitumen RC 70 is a relatively low-cost material, which makes it an attractive option for road construction and maintenance projects.
Versatility: Cutback bitumen RC70 can be used for a variety of road surfacing applications, including as a sealant, binder, or wearing course.
Skid resistance: The rough surface of cutback bitumen RC-70 provides good skid resistance, which helps to prevent accidents on wet or slippery roads.
Cutback bitumen RC-70 Safety Tips
Cutback bitumen RC-70 is a flammable material that can pose safety hazards if not handled properly. Some safety tips to keep in mind when working with cutback bitumen RC-70 include:
Use appropriate personal protective equipment, including gloves, safety glasses, and respiratory protection.
Store cutback bitumen RC-70 in a cool, dry, and well-ventilated area, away from sources of heat or ignition.
Avoid prolonged skin contact with cutback bitumen RC70, as it can cause skin irritation or dermatitis.
Use caution when handling hot cutback bitumen RC-70, as it can cause severe burns.
Follow appropriate fire safety procedures when working with cutback bitumen RC-70, including using fire extinguishers and avoiding smoking or open flames in the area.
Factors Affecting Cutback bitumen RC-70 Price
The price of cutback bitumen RC-70 can vary depending on a number of factors, including:
Market demand: The price of cutback bitumen RC70 can be affected by changes in market demand, particularly in the road construction and maintenance industry.
Raw material costs: The cost of the bitumen and solvent used in the production of cutback bitumen RC-70 can fluctuate based on changes in the cost of crude oil or other raw materials.
Production costs: The cost of producing cutback bitumen RC-70 can vary depending on factors such as energy costs, labor costs, and transportation costs.
Competition: The price of cutback bitumen RC-70 can also be influenced by competition from other road surfacing materials, such as asphalt or concrete.
Cutback bitumen RC-70 Applications
Cutback bitumen RC-70 is used primarily for road construction and maintenance projects. Some common applications include:
Surface dressing: RC 70 can be used as a surface dressing for roads and highways, providing a waterproof layer that helps to protect the road surface from damage due to water penetration.
Seal coating: Cutback bitumen RC-70 can be used as a seal coating to protect asphalt surfaces from oxidation, weathering, and other forms of damage.
Asphalt mixtures: RC 70 can be used as a binder in asphalt mixtures, improving the durability and skid resistance of the road surface.
Wearing courses: Cutback bitumen RC-70 can be used as a wearing course, providing a durable surface layer that can withstand heavy traffic and harsh weather conditions.
Packaging of the Cutback bitumen RC-70
Cutback bitumen RC-70 is typically packaged in steel drums or bulk containers. Steel drums are commonly used for smaller quantities of the material, while bulk containers are used for larger quantities. The drums or containers are usually lined with a plastic or metal liner to prevent the material from reacting with the container.
Cutback bitumen RC-70 Transportation and Storage
Cutback bitumen RC-70 is a flammable material that must be transported and stored carefully. Some guidelines for transportation and storage include:
Use appropriate transportation containers, such as tanker trucks or ISO containers.
Store cutback bitumen RC-70 in a cool, dry, and well-ventilated area, away from sources of heat or ignition.
Avoid storing cutback bitumen RC70 near oxidizing agents or reactive chemicals.
Follow appropriate fire safety procedures when storing cutback bitumen RC-70, including using fire extinguishers and avoiding smoking or open flames in the area.
