沥青渗透等级20/30表示标准测试中的渗透值范围为20至30。渗透等级沥青具有热塑性，可导致材料在高温下软化并在低温下硬化。沥青渗透等级20/30是用作铺路级沥青的坚硬渗透等级沥青，适用于道路施工和性能优越的修补。它也可用于生产具有技术规格的沥青路面。该等级的沥青主要用于基础和磨损层的热混合沥青的生产。

Bitumen 20/30 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 20-30 ASTM D5
3 Softening point ̊ C 80-90 ASTM D36
4 Ductility@25 ̊ C Cm 3 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 225 Min. ASTM D92
8 Solubility in Trichloroethylene Wt% 99.0 Min. ASTM D4
9 Spot test - Negative AASHOT102

 

Usage: The main common usage of bitumen 20/30 is suitable for road construction and for the production of asphalt pavements with superior properties. This grade of bitumen is mainly used of hot mix asphalt for bases and wearing courses as well.

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杰伊•基米亚沥青公司（Jey Kimia Bitumen Company）是伊朗各种沥青等级的最可靠的制造商和供应商之一，凭借20多年在国内外市场上生产和供应沥青的经验。

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