沥青渗透等级为40/50表示标准测试中的渗透值为40至50,沥青40/50是标准的渗透级沥青,通常用作铺路级沥青,适用于生产用于道路建设和维修的热拌沥青。它也可用于生产具有以下技术规格的沥青路面。该等级的沥青主要用于基础和耐磨层的热混合沥青的生产。沥青40/50是最常用的沥青牌号之一,它是所有其他沥青产品的基本材料。

Bitumen 40/50 Specifications

No. Analysis Unit Limit Test Method
1 Density@25 ̊ C Kg/m³ 1010-1060 ASTM D70 or D3289
2 Penetration@25 ̊ C Mm/10 40-50 ASTM D5
3 Softening point ̊ C 49 Min. ASTM D36
4 Ductility@25 ̊ C Cm 100 Min. ASTM D113
5 Loss on heating Wt% 0.2 Max. ASTM D6
6 Drop in penetration after heating % 20 Max. ASTM D5 and D6
7 Flash point ̊ C 232 Min. ASTM D92
8 Solubility in Trichloroethylene Wt% 99.0 Min. ASTM D4
9 Spot test - Negative AASHOT102
10 Viscosity@60 ̊ C P 4000+800 ASTM D2171
11 Viscosity@135 ̊ C CST 400 Min. ASTM D2170

 

Usage: The main common usage of bitumen 40/50 is being used for road construction at tropical regions.

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