Oxidized bitumen 115/15

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bitumen-115-15

Bitumen is hydrocarbon product produced by removing the lighter fractions (such as liquid petroleum gas, petrol and diesel) from crude oil during the refining process. In North America, Oxidized bitumen 115/15 is commonly known as asphalt binder or asphalt. Bitumen 115/15 is an engineering material and is produced to meet a variety of specifications based upon physical properties.

Production of bitumen 115/15

The first phase of the bitumen  production process consists of the two-stage distillation of crude oil. The distillation is initially performed under atmospheric pressure, with the separation of lighter components of crude oil. The remaining content is then introduced into the vacuum column, where it is subject to fractionation in low pressure. Vacuum residue is collected from the vacuum column, and subsequently subjected to oxidation. Process conditions, such as pressure and temperature, depend on  the  type of  processed raw material and on  the  required properties of  the  end product.

Evaluation of bitumen 115/15

Paving-grade bitumen types used for road construction and surface dressing are covered by a “2+” conformity assessment system, which requires every manufacturer to implement the Factory Production Control system, and this implementation needs to be certified by a FPC Certificate. This Certificate shall be issued by a notified body. The FPC system consists of procedures, regular inspections and tests and/or assessments, while the results serve to evaluate the quality of the finished product. Additionally, the manufacturer must have in place a sample testing plan and he should perform type tests for each product.

Application of bitumen_115/15

It should be heated double temperature against the softening point to be able to have flow and viscosity. Normally it is heating up to 230 while it is bale and if it is inside of bitumen 115/15 bag needed extra temperature to melt the bags and it is approx. 50 centigrade more.

Specification of bitumen_115/15

TEST SPECIFICATION

STANDARD RANGE

TEST METHOD

Specific gravity @25/25 C

1.05 approx.

D-70

Penetration @25C

10/20

D-5

Softening point C

110/120

D-36

Ductility@25C

1.5min

D-113

Loss on heating (wt)%

0.2max

D-6

Flash point C

260min

D-92

Solubility in CS2 (wt)%

99min

D-4

Specific gravity @25/25 C

1.05 approx.

D-70

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