THIS IS HOW ROAR EXPANSIVE CEMENT WORKS

1. The cement must be used in holes; pouring it into existing cracks in the stone or rock will not be effective.

   
2. Safety glasses must be worn at all times by personnel in the area. Hard hats and safety boots are a good idea on any construction or demolition site.
3. When using the temperature chart, keep in mind that the temperature of the hole may be much higher than the surrounding air temperature if it is in the sun or affected by a nearby heat source due to machinery or from drilling the holes.
4. Low temperature, hard stone, or holes that are too far apart can extend the breaking time. If after a full day no cracks appear, wait a little before thinking there is a mistake in the mix. TheROAR EXPANSIVE CEMENTcontinues to press for 24-48 hours.
5. If when mixing the ROAR EXPANSIVE CEMENT it starts to emit steam in the bucket, add 2-3 litres of water, stir, clean, and dispose of the mixture. This happens because too much time has passed since the mixing began.
6. If smoke or steam starts to come out when filling the holes, this is a sign that the mixture may burst. Immediately clear the area of people. The vapours are not dangerous or toxic in any way.

WHAT CAN CAUSE A BURST?

1. Use ahole of too large a diameter.
2. Usewater that is too hotin the mix. See temperature table.
3. Usevery little water, especially when the stone or cement is at a temperature above 22ºC.
4. Too much time elapsed between the start of the mix and the fillingof the holes with that mix.
5. Guessing the temperatureinside the hole instead of measuring it.
6. Guessing the temperature of the waterinstead of measuring it.
7. Holesthat are veryshallow. The depth should be 4 times the diameter of the hole or more.
8. Allow thedust to be too hotbefore mixing it with water.
9. Holes drilled very close, 25 cm, in soft stone or cement, in hot weather.
10. Thebest drill diameter is 38 mm
11. Blowouts usually do notoccur after 3 hoursafter filling the holes.

HANDLING AND STORAGE

Precautions for safe handling.

1. Do not handleor store nearfood, drinksortobacco.
2. EXPANSIVE CEMENT ROAR is a highly alkaline product, the pH reaches 13 after contact with water andcan cause severe irritationto mucous membranes, especially the eyes.
3. Wearsafetyglasses,rubbergloves and a helmet during the mixing and pouring process of ROAR EXPANSIVE CEMENT.
4. Wear adustmask when using ROAR EXPANSIVE CEMENT, especially in areas where ventilation is poor such as tunnels or mines.
5. Do not be close and above alldo not bring your headwithin at least 3 hours after filling the holes.
6. Keep people away from the areaafter filling the holes.
7. Cover the holes from rain or direct sunlightonly with a cloth or a tarpaulin that does not retain heat
8. Skin contactwith ROAR EXPANSIVE CEMENT must beremoved with large amounts of cold waterquickly after contact.
9. Eye contactwith ROAR EXPANSIVE CEMENT must beremoved with large amounts of cold water immediately and without rubbing. Seek medical attention promptly.
10. Keepout of reach of children.

CAUTION NOTE

• Expansive demolition agents involve a phenomenon known as 'blow-out-shot' or blowout. This occurs if the mixed powder reaches too high a temperature and reacts with water too quickly for the material to expand laterally.
• The temperature can be higher than the boiling point before the water is chemically combined with ROAR EXPANSIVE CEMENT. This can result in steam formation, which will cause the ROAR EXPANSIVE CEMENT to burst from the hole with a sudden force.
• To avoid bursting, the instructions regarding water temperatures, mixtures, and hole sizes must be followed. Always wear safety glasses, and typically use holes with a diameter of 38 mm.
• Clean all dust and dirt from the holes after drilling and keep the ROAR EXPANSIVE CEMENT cool before use.