ECOBUST is a mixture of minerals, mainly calcium oxide, aluminum oxide, iron oxide and silicon dioxide which when mixed with cold water, expands.
back to top Q2. Why should I use ECOBUST?ECOBUST is used in areas where explosives are not permitted or preferred, confined areas, restrictions including and not limited to dust, noise, vibration. When a more effective method of concrete or rock breaking is preferred compared to conventional methods such as Jack Hammering. Ecobust offers a much less intensive method of breaking concrete increasing productivity and safety. ECOBUST is particularly useful where traditional methods of demolition are not permitted such as residential areas, schools, hospitals and airports. ECOBUST is used to break any type of rock, marble, granite and reinforced concrete in a safe, gentle and environmentally friendly manner without any explosion, noise, vibration, flying rock or toxic vapors. It works cleanly, efficiently and cost effectively and requires NO special training, equipment, licenses, permits or storage requirements.
back to top Q3. When should I use ECOBUST?Mixing ECOBUST with cold water causes a chemical reaction and like all chemical reactions its speed of operation depends on temperature. Where ambient temperature is fairly constant between day and night, ECOBUST can be used at any time. Where there are large changes in temperature between day and night, best results will be obtained if ECOBUST is used either in the early morning or late afternoon.
back to top Q4. Where should I use ECOBUST?ECOBUST should be used in a well ventilated area and can be used to fracture any type of rock, marble, granite and reinforced concrete. Areas of use include quarrying and stone dimensioning, demolition, excavating, cutting reinforced concrete, rock breaking and mining. Due to its silent operation, ECOBUST is particularly useful where traditional methods of demolition are not permitted such as residential areas, schools, hospitals and airports.
back to top Q5. What about safety?ECOBUST works gently and quietly without any explosion, noise or flying debris. Always wear protective safety equipment such as safety glasses, dust mask, gloves and avoid contact with the skin. Do not get in the eyes or on skin or clothing. Do not breathe dust. Keep container closed. Use in a well ventilated area. Wash thoroughly after handling.
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ECOBUST can be used by anyone who has read and understood the User's Guide. No special training, equipment, licenses or permits are required.
back to top Q7. How much ECOBUST do I use?One 44 lb (20kg) box of ECOBUST can fill up to 35 linear feet (10½ m) of 1½ inch (38 mm) diameter holes. ECOBUST comes in a 44 lb (20kg) box.
back to top Q8. What size holes should I drill?(Please refer toUser's Guide)
back to top Q9. How far apart should I space the holes?The spacing between holes depends on how hard the rock is. Generally the spacing should be from 8 ' 20 inches (200 ' 500mm) apart. Closer together the holes the harder the rock. Holes should be drilled 80 to 90% of the depth of the rock. Do NOT drill holes all the way through the rock.
(Please refer to User's Guide)
back to top Q10. What is a 'blow-out' and how do I avoid one?A 'blow-out' occurs when ECOBUST is forced out of the hole under high pressure. NEVER look directly into the hole and ALWAYS wear safety glasses. To avoid a potential blow-out, pack ECOBUST into the hole using a wooden stick to eliminate any air pockets. Ensure the hole diameter is within the range specified. Holes larger than 2¼ inches (57mm) in diameter are likely to cause a blow-out. Ensure that there is space for the rock to move into during fragmentation and ensure the spacing between holes is not too large. Use only the recommended amount of water and refer to temperature chart.
back to top Q11. How long does it take for Ecobust to work?Just like all chemical reactions, the speed of which Ecobust expands and breaks rock or concrete will depend on both the ambient temperature and core temperature of the material breaking. Results are typically seen in 2 to 8 hours, and can sometimes take up 24 hours in colder weather. We recommend providing 24 hours for best results. Contact us to learn more.
Concrete Demolition and Rock Breaking, Cracking, Splitting has never been easier with Dexpan® Non-Explosive Demolition Agent. Dexpan® is a cement with an amazing 18,000 PSI expanding strength when mixed with water. Poured into drilled holes, Dexpan® breaks concrete and splits rocks safely and quietly.
How to break concrete or crack, split rocks easily?
There are only 3 Easy Steps to use Dexpan: Drill, Mix, and Pour.
Always wear Safety Goggles, Rubber Gloves, a Dust-Proof Mask, and Proper Clothing when handling Dexpan.
Forceful Blowouts and Alkaline Burns may occur. Make sure to read safety precautions and first aid at the bottom of this page.
STEP 1: Drilling
Use a 1-1/2 inches (or 3.8 cm) drill bit; holes should be drilled 1 foot (or 30 cm) apart. 80 to 90% of the depth, do not go through. Note: Using smaller drill bit will reduce expanding strength. Please call for applications with depths less than 6 inches. (See common drilling patterns
Tip 1: To insure success, Dexpan® needs empty space to expand to. Make sure that the rock or concrete has an open face for expansion equal to the drilling depth. If there is no expansive space, extra holes may be required to establish it.
Tip 2: Dexpan® cracks according to drilling patterns designed for controlled demolition and Easy Clean up. Call for our Free drilling patterns to minimize consumption of Dexpan® by cutting rocks or concrete into desired sizes.
If you encounter rebar while drilling, move drill bit a few inches to avoid drill bit damage.
If you are looking for more details, kindly visit Sanqiang Building Material.
STEP 2: Mixing
Choose correct type of Dexpan® based on ambient and core temperature. Core temperature is the temperature inside of the rock or concrete, which can be different from the ambient temperature.
In a bucket, combine 0.4 gallons (or Three 500mL bottles) of cold water with one 11 Lb. (or 5 Kg.) bag of Dexpan®. Mix well to a slurry, no lumps. A drill and paddle is recommended.
STEP 3: Pouring
Dexpan® slurry should be poured into holes within 10-15 minutes after mixing.
DO NOT leave excess Dexpan® slurry in the bucket as blow-outs may occur. Dispose of waste according to federal, state, and/or local regulations.
Coverage: Normally one 11 Lb. (or 5 Kg.) bag of Dexpan® can fill up to 9 lineal feet (or 2.5 meters) of 1.5 in (or 3.8 cm) diameter holes.
Tip 3: Clean holes after drilling using an air hose or vacuum to remove excess dust, this is not a requirement, but is recommended for best results.
Tip 4: Be sure to protect the filled holes from direct sun light, rain and snow. If water might get into holes, then Dexpan® slurry should be poured into plastic tubing.
Tip 5: For horizontal holes, you may mix Dexpan® thicker and push it into horizontal holes.
Dexpan® Cracking or Breaking Time:
Properly drilled and mixed, the cracks may appear after 2 to 8 hours of filling, depending on ambient and core temperature, humidity, rock or concrete hardness.
Note: Although the Dexpan® slurry may look dry on top, it does not mean it has stopped working, please allow the full 24 hours before calling our technical department.
Do not remove Dexpan from the holes or try other methods, these could void your warranty.
If Dexpan® completely dries into a powder and did not crack, pour additional water onto Dexpan® filled holes to restart the process.
As you can see after 6 hours, hairline cracks appear in this concrete foundation filled with rebars.
2 hours after, cracks are getting wider and deeper.
24 Hours after pouring, Dexpan® cracks are well developed and the concrete is ready to be disposed of.
Cut off exposed rebars, even they could not stop Dexpan from Breaking this concrete foundation.
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Should you have any questions, please do not hesitate to contact our technical support at(See Frequently Asked Questions
Dexpan® Non-Explosive controlled demolition agent, the easy to use, cost effective way to work safer!
**WARNING** Improper use may cause serious injury. Read instructions carefully. (See
Improper use may cause serious injury. Read instructions carefully. (See Dexpan Safety Data Sheet
Forceful Blowouts may occur once mixed with water! Keep a safe distance. DO NOT look directly into filled holes. Use of Dexpan® in hot weather could increase chances of blowouts. DO NOT pour into hot holes. Use iced water in summer.
Keep out of reach of children and pets.
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