BTNC19
Product characteristics
Hot Mix Asphalt C19 is one of BMT’s core products, manufactured through a closed-loop process — from rigorous material selection to precision mix design. With a wide range of popular gradations including BTNC4.75, BTNC9.5, BTNC12.5, BTNC16, and BTNC19, the product is suitable for various pavement structure layers.
All asphalt mixes strictly comply with TCVN 13567:2022 and are subject to stringent quality control at BMT’s modern mixing plants and ISO 9001:2015-certified laboratory.
Details
Technical Specifications & Performance Characteristics:
| TT | Technical Specifications | BTNC19 | BTNC16 | BTNC12.5 | BTNC9.5 | BTNC4.75 |
| 1 | Nominal Maximum Aggregate Size | 19 mm | 16 mm | 12.5 mm | 9.5 mm | 4.75 mm |
| 2 | Scope of Application | |||||
| - Minimum Thickness | 5cm | 3.8 cm | 3.2 cm | 2.5 cm | 1.9 cm | |
| - Appropriate Thickness | 6cm ÷ 8cm | 5cm ÷ 7cm | 5cm ÷ 7cm | 4cm ÷ 5cm | 3cm ÷ 5cm | |
| - Applicable Scope | Lower surface course / Intermediate course (in a 3-layer pavement structure): Applicable to all road types | Upper surface course: Expressways / National highways / Port and depot roads / Airports / Provincial roads / District roads / Urban expressways, urban trunk roads, main urban roads, inter-area roads, primary area roads, local roads / Industrial park and export processing zone roads. | Upper surface course: District roads / Urban main roads, inter-area roads, primary area roads, local roads, sub-area roads / Residential and urban area roads / Factory, warehouse, and office roads / Rural transport roads. | Upper surface course: Bicycle paths, pedestrian walkways / Tennis courts, pickleball courts. | ||
| 3 | Gradation type | Coarse gradation | Coarse gradation | Coarse gradation/ Near-fine (near-coarse) gradation | Near-fine (near-coarse) gradation | Fine gradation |
| 4 | Asphalt content | 4.4% ÷ 4.5% | 4.6% ÷ 4.7% | 4.7% ÷ 4.8% | 5.1% ÷ 5.2% | 6.0% ÷ 6.1% |
| 5 | Specifications | |||||
| - Aggregate Gradation | Aggregate gradation is within the specification envelope | Aggregate gradation is within the specification envelope | Aggregate gradation is within the specification envelope | Aggregate gradation is within the specification envelope | Aggregate gradation is within the specification envelope | |
| - Masrshall | > 10kN | > 10kN | > 9kN | > 8kN | > 5.5kN | |
| - Air Voids | 4.0% ÷ 5.5% | 4.5% ÷ 5.8% | 4.5% ÷ 5.8% | 4.5% ÷ 5.8% | 4.5% ÷ 5.8% |
