What's CRACK AGENT / Expansive Mortar?
CRACK AGENT (Expansive Mortar) is a kind of powder with amazing 18,000 PSI expansive strength when mixed with common water. Poured into holes, CRACK AGENT breaks reinforced concrete & rock safely and quietly, while providing SILENT cracking. Since CRACK AGENT provides controlled demolition according to drilling patterns, it is very easy to break reinforcedconcrete and all kinds of stone into desired sizes and shapes, without noise, vibration or dust.
In demolition, concrete cutting & excavating industry, CRACK AGENT helps you to break reinforced concrete and rock into chunks, so you may easily cut off rebar, haul it away with a crane or truck without damage remaining part.
In mining and quarrying industry, CRACK AGENT helps to achieve perfect slabs and blocks from limestone, onyx, marble, granite or any other type of stone you are working with. Compares to blasting, CRACK AGENT avoids waste of valuable stone, high insurance, costly storage and labor. CRACK AGENT can also be applied along with traditional methods like primer cord, hydraulic breaker, diamond blade saw and jackhammer to help cut cost, work time and increase safety, Plus silent operation, CRACK AGENT is perfect for residential, school and airport area. CRACK AGENT helps your work to become more efficient and cost effective.
Depending on different working temperature, there are four types of crack agent for your choice.
How to use
Drilling
1. Drill holes using an air hammer drill and appropriate drill bit specific to the rock type.
2. Holes should be drilled no further than 30-60cm (1ft-2ft) apart. Note: In reinforced concrete recommended no more than 20cm (8") apart.
3. Recommended hole diameter 38mm - 50mm (1 ½" - 2.0"). Depth would be 70-90% of the way depending on the type of rock/material to be removed.
Mixing
1. For regular safety reasons and mixing small amounts by hand, it is recommended to use rubber gloves.
2. In a bucket, combine 1.5 Liters of water to one 5kgs bag of CRACK AGENT. Or pour water and CRACK AGENT as a rate of 1:3 units by weight.
3. Mix well, using a drill and paddle is recommended. If mixing with a stick or other method, make sure powder is completely dissolved into the water. Mix to a slurry.
Filling
1. Clean holes before filling using air hose remove excess dust from drilling.
2. CRACK AGENT slurry should be poured into holes within 10-15 min. after mixing. Do not fill to the top, only fill the holes about 15mm ( ½" to 1") from the top.
3. Mix well and pour into holes while agitating the hole to make sure no air gaps are in the hole. Example: Using a piece of rod or stick to poke holes.
4. For Horizontal holes, a grouting pump would be most reliable to poor.
Cracking
The cracks appear in 40-60 min. after filling, depending on the weather,rocks, and concrete type. The cracks become wider within time (maximun 48 hours expanding time).
Consumption
