Installation Method Statement PDF
Material Data Sheet PDF
Safety Data Sheet PDF
1. GENERAL DESCRIPTION:
Armourscreed® AS50, a stress absorbing inlay crack repair system designed to repair reflective and fatigue cracking in concrete and asphalt airfield surfaces. In service, AS50 exhibits excellent adhesive and compressive properties for improved resistance to wheel track deformation over a wide range of temperatures.
2. PRODUCT:
The Armourscreed® AS50 system is a polymer modified bituminous compound incorporating graded high PSV aggregates, rubber granules, fibre reinforcement, extender and adhesion agents.
USES
• Inlay Crack Repair System
• Concrete Repair System
• Stress Absorbing Membrane
• Kerb Sealing Applications
ADVANTAGES
• Prevents further deterioration
• Increases the pavements effective life
• Suitable for both asphalt and concrete surfaces
• Fast and effective installation minimises traffic disruption
• Suitable for application throughout the year
• Cost effective
3. PHYSICAL PROPERTIES:
| Density @ 25°c | 1.80 ± 0.05 |
| Minimum Application Temperature | + 3°c Product |
| Pouring Temperature | 180 ± 10°c |
| Maximum Safe Heating Temperature | 210°c |
| Penetration Value – EN 13880-3 | 15 ± 5 dmm |
| Flow Resistance – EN 13880-5 | ≤ 3 mm |
| Softening Point – EN 1427 | 115 ± 10°c |
4. SITE REFERENCES:
Armourscreed® AS50 has been installed successfully on numerous civil and military airfields including:
• RAF Lakenheath
• RAF Mildenhall
• RAF Brize Norton
• RAF Yeovilton
• Farnborough Airport
• Stanstead Airport
5. CHEMICAL RESISTANCE:
Bituminous products soften in contact with petroleum solvent and mineral oils. The product has good resistance to dilute acids and alkalis.
COMPOSITION: A polymer modified bituminous blend incorporating rubber granules, fibre reinforcement, high PSV aggregate, extender and adhesion agent.
STORAGE: Store in a cool dry place preferably under cover and away from direct sunlight.
PACKAGING: Multiply silicone or Poly-silicone bags – 20 / 25kgs Net.
6. SAFE HANDLING PRECAUTIONS:
*Do not exceed the maximum safe heating temperature.
*Do not allow the hot material to come into contact with water as the product will react violently.
* Always wear the recommended protective clothing – see below.
7. ACUTE HEALTH HAZARDS & ADVICE:
Armourscreed® AS50 presents no acute health hazard at ambient temperature, however as these materials are normally handled at elevated temperatures when their physical state changes to a liquid, the bitumens present in these products give of fumes which are undesirable to inhale as very small quantities of HYDROGEN SULPHIDE may be present in the bitumen.
RECOMMENDED PROTECTIVE CLOTHING:
Overalls, Goggles / Visor, Armlet Gloves and Closed Safety Boots AT ALL TIMES when handling hot product.
INHALATION:
Inhalation of the vapours should be avoided.
INHALATION FIRST AID:
Remove the affected person to fresh aid. If breathing has stopped administer artificial respiration. Give cardiac massage if necessary. If the person is breathing but unconscious place in the recovery position. Obtain medical assistance immediately.
SKIN CONTACT:
Bituminous products present no acute health hazards to the skin other than burning when handling at elevated temperatures.
SKIN CONTACT FIRST AID:
Flush the contaminated skin with cold water. DO NOT ATTEMPT TO REMOVE THE BITUMEN. Cover the burn with a sterile dressing. Do not apply any medication to the affected part. Obtain medical attention immediately.
EYE CONTACT:
Contact with fumes may cause irritation and redness.
EYE CONTACT FIRST AID:
Irrigate with copious amounts of water for 10 / 20 minutes and seek medical advice immediately.
PRECAUTIONS:
Avoid contact with the skin by use of suitable protective clothing.
TRANSPORTATION:
Not classified as dangerous for transportation.
FURTHER INFORMATION:
Additional information on the product is given in the system Safety Data Sheet and Installation Method Statement or by contacting Walker Sealants Ltd.
Latest Revision – December 2021