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Use and Information Overview

Rock Popper Rock Fracturing Technology:


The Rock Popper rock fracturing technology is a safe*, compact, fast, economical, and innovative solution for your rock and masonry fracturing needs. With the Rock Popper System you can reduce large boulders, rock formations and masonry to sizes that are more manageable to move and/or transport, whether you have heavy equipment on site or not, the Rock Popper can be used for all applications including construction, mining, trail and road building, rock quarries, and road maintenance. Imagine not having to call for expensive oversized heavy equipment to aid in removing a giant boulder that has found its way onto a road, path, railway, or foundation site. You could fracture the boulder to smaller pieces that are movable by standard equipment or even personnel.


Safety:
The Rock Popper is safe to use next to, inside, or under structures (as long as properly ventilated). Flyrock can be kept at an absolute minimum. Material covers, such as carpet remnant or moving blanket, may be placed over the blasting area to contain any parts that may find a way to break away. See the section “Technical Overview” below for additional information about how the Rock Popper is a safer alternative compared to conventional explosives.


Modular:
The Rock Popper is compact and easy to carry compared to its power, conveniently fitting into its case, which can be stored in the toolbox or behind the seat of many work trucks, places a jack hammer or tractor mounted hydraulic splitter would not fit. Gone are the days of needing to have a backhoe and a hoe-ram on site or spending the time switching between the bucket and ram attachments. Also gone are the increased maintenance costs required by the extended use of your hydraulic hammer attachment. (Using your hydraulic hammer in conjunction with the Rock Popper may be helpful in certain situations as well, don’t sell it yet)


Fast:
The Rock Popper is a fast way to demolish rock and masonry. Setup time can be as little as five minutes then successive blasts can be as little as three minutes. The longest step is drilling the borehole, however, drilling a 10mm borehole is done quite quickly. Materials like concrete, andesite, or certain granites drill very quickly. You can generally reach 12” in 20-30 seconds. Some harder materials like quarts may take as long as a few minutes and of course depth is a factor. The Rock Popper is also fast for larger more involved blasts. Scenario #1: our team was able to complete 8 head blasts, all with 24” deep boreholes on large pieces of Lahar; the complete time between blasts was 20 minutes with only one person.


Economical:
Systems and accessories are priced affordably so the initial investment and reoccurring expenses for cartridges are low when compared to alternative options. Our quality SDS bits are sold at very reasonable prices because we appreciate the importance of the site prep when it comes to our system. The Rock Popper is a time and money saver! Scenario #2: Trenching for electrical, water, sewer, etc. and you come across a large bolder. Simply fracture the boulder and toss it out the portion of the boulder in the trench by hand or with your backhoe. No need to dig the entire boulder out and arrange for transport off site.

Innovative:
Rock and masonry have a high compressive strength which is why they make great foundations for heavy loads. However they have a low tensile strength. The innovative Rock Popper takes advantage of the low tensile strength of rock and masonry and fractures by placing the force/power on the inside of the material. Hydraulic hammers and other mechanical means of demolishing are fighting against the high compressive properties of the material leading to slow demolition with high maintenance and equipment ware.

The Rock Popper System is a quiet system (quieter than most people expect). Noise creation is much less than a large rotohammer or any hoe-ram, making your residential or commercial neighbors much happier during your demolition phase of a project. In most cases the, SDS drilling is the loudest part of the entire process. If blasting wet (i.e. with water in the borehole) the fracturing can be quieter than a clap of the hands.

Water Assistance:

Since the Rock Popper Cartridges are extremely water resistant they work in damp or completely submerged environments. This also allows for drilling a borehole much deeper than the Blast Rod and Cartridge length. When you fill the borehole with water you are taking advantage of the incompressible properties of water allowing for a larger splitting plane across the entire length of the borehole wether it be 18” or 40”. Its almost like free power. Adding water will also fill any voids that may be present making materials that may not otherwise be blast-able, blast-able.

Technical Overview:
The Rock Popper uses a propellent based rock fracturing cartridge with a completely inert ignition system. The inert igniter is electrically initiated creating a very powerful ionization effect that initiates the propellent. This ignition system is much safer than other pyrogen or percussion (primer) based initiation systems aiding in the superior safety of the Rock Popper. Another safety feature is the method in which the powerful propellent utilized in both the .375 Magnum Cartridge and the .375 Magnum Booster Charge takes advantage of a synergistic loop and is thus basically self regulating. The synergistic loop is as follows: 1. The propellent burns creating pressure. 2. The pressure allows the propellent to burn faster creating more pressure. 3. The additional pressure generated allows the propellent to burn even faster and so on. Once the containing vessel (the bore hole) ruptures, the loop is instantly ended so generally no excessive pressure is generated. In other words the pressure the propellent generates is limited by the containment ability of the containing vessel (cartridge tube or rock or concrete). This is how the cartridge can be used on such a wide range of material such that the cartridge can fracture car sized boulders and then much smaller rocks without creating excessive flyrock. The harder the material the better it breaks using our system.

This synergistic loop is essential for the self regulation of power and is responsible for a large part of the safety of the Rock Popper System. However, this loop has its disadvantages. Material that is too soft and/or has many fractures will not allow the cartridge to generate enough pressure to fracture the material. Conveniently material that is this soft or fractured is usually easily broken up by a large sledge hammer or a rotohammer with a chisel tip. If attempting to break soft or fractured rock it is important to add water to the borehole to fill any voids that may be present. If the borehole holds water then your blast will most likely be successful, if it does not then the pressure will most likely be insufficient to fracture the material.
 
*Safe with reasonable precautions.

Short Answer:

Yes, each Rock Popper System comes with a letter including an abridged version of our ATF SED Exemption. This letter explains that you are not in possession of a explosive device that requires a Federal Explosive license; meaning that it is legal for anyone who is 18 or older who goes through the Cartridge Certification Process to OWN a Rock Popper.  This letter is not a “get out of jail free card” if you are participating in illegal activities with the Rock Popper System.  Each State and Local authority can regulate the USE of the Rock Popper so it is important to check with the appropriate State and Local authorities.

Long Answer:

Federal:

The 27 CFR (Code of Federal Regulations) regulates explosive materials. According to our conversations with the ATF: Even rock fracturing systems using the same common smokeless powder used in ammunition (some competitors fit this category) are considered an explosive and regulated as explosives. When dealing with smokeless powder there is a very narrow exemption that applies only to small arms ammunition. As soon as the powder is used for something that is not ammunition then the smokeless powder becomes a regulated explosive.
 

Rock Popper has reached out to the ATF and they have granted us a Federal SED (Special Explosives Device) Exemption from the 27 CFR part 555. This means that you do not need a Federal Explosives License to purchase, possess, or use Rock Popper 375 Magnum Cartridges and Booster Charges when using them for their intended purpose. However, this does not mean that you may blast whatever, whenever, and wherever you please. Other Federal government entities such as the USFS or BLM may regulate the use of your system.

State:

Some states may require a Blasting License or Permit. It is the responsibility of the user to make sure they are in compliance with state laws.  Currently the state of Massachusetts requires a full state blasting license for use.
 

Local:

In 2007 there were over 39,000 general purpose local governments. Rock Popper can not keep track of the laws for each municipally especially since laws change fairly frequently. Therefore it is the responsibility of the user to make sure he/she is in compliance with local laws. For example; for use in construction some municipalities may require some sort of demolition permit.

Is it Legal?

Link to Letter
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