DC-HMB | Hot-Mix Epoxy Asphalt Binder

Overview:

This product is a specially toughened and modified epoxy resin binder used in conjunction with base asphalt, making it an excellent material for steel bridge deck paving.

Compared to traditional asphalt materials, hot-mix epoxy asphalt mixtures exhibit superior high-temperature stability, crack resistance, and waterproofing properties, making them ideal for steel bridge deck paving.

Our independently developed curing and toughening systems significantly reduce costs compared to similar domestic and international products, providing greater economic benefits to our clients.

Applications:

According to the design and construction specifications for highway steel bridge deck paving (JTG/T3364-02-2019), hot-mix epoxy asphalt mixtures can be used as protective and wearing layers in combination with various asphalt paving materials, as follows:

Layered Structure Schematic:

Hot-Mix Epoxy Asphalt Mixture (Wearing Layer)

Secondary-Curing Epoxy Adhesive (Bonding Layer)

Hot-Mix Epoxy Asphalt Mixture (Protective Layer)

Secondary-Curing Epoxy Adhesive (Waterproof Bonding Layer)

Epoxy Zinc-Rich Paint

Steel Plate, Sandblasted to Sa2.5 Standard

Product Features:

Long pot life: Maintains low viscosity within 3 hours at high temperatures (150~170°C), making construction easier.

Does not flow at high temperatures and remains non-brittle at low temperatures, suitable for various climatic conditions.

Excellent water stability.

Fast curing at room temperature (10~40°C), enabling traffic reopening within a few days.

Good flexibility and fatigue resistance, with high elongation at break and decent tensile strength.

Technical Specifications:

Complies with the technical requirements for hot-mix epoxy asphalt binders in section 4.5.3 of the Highway Steel Bridge Deck Paving Design and Construction Specification (JTG/T3364-02-2019). The key parameters, such as tensile strength and elongation at break, significantly exceed standard requirements and match or surpass similar imported products.

Time-Viscosity Curve of Binder (Excluding Asphalt) at 150°C

Viscosity/mPa.s

Time /hours

Construction Process:

Curing Time:

After paving and rolling, the mixture requires a curing period to reach traffic-ready strength. The curing time varies with environmental temperature, as shown in the chart below:

Curing Time Curve

Curing Time /days

Environmental Temperature/°C

Precautions:

To enhance workability, it is recommended to preheat the main agent and curing agent to 50–60°C before use, especially when the ambient temperature is below 20°C.

Mix the main agent and curing agent evenly in the recommended ratio, then add the mixture simultaneously with the asphalt.

The recommended binder-to-asphalt ratio is 1:1, but it can be adjusted based on specific requirements.

Transportation and Storage:

Protect the product from rain, sunlight, packaging damage, and moisture during storage and transportation.

Store in a cool, dry place, away from fire sources.

The product has a shelf life of 24 months from the date of manufacture.

This product is not classified as hazardous and can be transported as general goods.

Packaging Specifications:

20L metal drums or customized packaging as per user requirements.