CATIONIC POLYMER MODIFIED SLOW-DECOMPOSING bitumens are characterized by greater resistance to permanent deformation, improved fatigue resistance at low temperatures, high adhesion performing reparation works on pavement.
I. TECHNICAL REQUIREMENTS AND TEST METHODS
1.1. Polymer-modified bitumen for road construction must meet the requirements specified in Table 1.
Two component elastic hydro modified with SBS. Durable waterproofing of joints, horizontal and vertical parts buildings.
1.2. Indicator elastic recovery is defined in a way analogous to the method of determining the ductility under Standard of CEMA 4542-84. The stretching of the samples was carried out to a length of 20 cm, after which the thread is cut in the middle with scissors. After 30 min. Regard to the distance between two threads / parts /.
Elastic recovery = L1 / L x 100, in%, where:
L1 - the distance between two threads / parts / measured after 30 min
L - distance of 20 cm
1.3. Homogeneity after heating. Difference in the softening temperature, using the "ring - ball".
In aluminum, varnished aluminum cylinder with a diameter of 3 cm and a length of 16 cm, were filled with approximately 75 g modified bitumen, at a height of 2/3 of the length of the cylinder. After cooling, to the extent that it can be touched by hand, the cylinder is folded at the top tightly to not penetrate any air. The closed cylinder was placed in a vertical position in a drying cabinet, where stand for 3 days at 180 ° C.
After equilibration at room temperature / 18 ÷ 28 ° C /, the cylinder with the sample is placed in a cold chamber for 20 min., To the bitumen sample to separate from the cylinder walls.
Taken from the cylinder sample is divided into three parts. The temperature of softening of the top and bottom.
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INDICATORS |
Requirements |
Methods Test |
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PMB 60-90 |
PMB 50-90 S |
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1. Penetration at 25 ° C, 0.1mm. |
60-90 |
50-90 |
BDS 10057-83 |
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2. Ductility, cm, not less than:
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40 - |
- 50 |
St. CMEA 4542-84 |
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3. Softening temperature, by the method "ring and ball", ° C, not lower than |
50 |
65 |
BDS 10234-87 |
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4. Temperature of breakage Fraas, ° C, not higher than |
Minus 15 |
Minus 19 |
BDS 10103-87 |
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5. Mass loss after heating at 163 ° C, 5 h,%, not more than |
0.5 |
0.5 |
St. CMEA 4543-84 |
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6. Homogeneity after heating Difference the softening temperature by the method "ring and ball", ° C, not more than |
2 |
2 |
T. 1.3. of this Specification |
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7. Elastic recovery at 25 ° C,%, not less than: |
65 |
80 |
T. 1.2. of this Specification |
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8. Reduce penetration after heating,%, not more than: |
40 |
40 |
BDS 10057-83 |
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9. Adhesion to mineral material,%, not less than: |
95 |
95 |
BDS 11685-82 S.1 |
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10. Elastic recovery heating,%, not less than: |
65 |
80 |
1.2. of this Specification |
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11. Flash point in open crucible, ° C, not lower than |
250 |
250 |
St. CMEA 5469-86 |
2.1. Adoption of polymer-modified bitumen for road construction is made of lots under 2.1.. BDS 11035-81.
2.2. Sampling is carried out according to St. CMEA 1248-78.
III. Packing, Marking, Storage and Transportation
Packaging, marking, storage and transportation of polymer-modified bitumen for road construction is made according to BDS 11035-81.
IV. DOCUMENTATION
Each batch of polymer-modified bitumen for road construction should be accompanied by an analysis certificate issued by the manufacturer containing the following information:
- Name of the manufacturer;
- Product name;
- Laboratory testing results;
- Quantity;
- Date;
- Signature of the head of the physical and chemical laboratory;
- FTS № 1-08-03
The production and use of polymer-modified bitumen for road construction must comply with all instructions on security and safety, as well as measures for fire protection.
VI. MANUFACTURER'S WARRANTY
The manufacturer ensures that the quality of polymer-modified bitumen with the requirements of the Technical Specification only in compliance with the conditions of operation, storage and transportation specified in this specification.