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Since its beginning in 2008, FabricSpan has partnered with Dome Technology to create custom PVC airforms for thin-shell concrete domes. […]

Since its beginning in 2008, FabricSpan has partnered with Dome Technology to create custom PVC airforms for thin-shell concrete domes. Even though an airform resists UV damage and harsh weather, routine inspection and upkeep will help maintain quality to get the most out of your dome’s exterior.

FabricSpan

Located on the same campus, Dome Technology and FabricSpan work together to create carefully sized, low-maintenance outer membranes for domes. FabricSpan recommends annual inspections to ensure the PVC airform is free of damage and protecting the structure. Use the following checklist for your inspections:

  • Are there any tears or punctures in the fabric membrane?
  • Is polyurethane foam exposed?
  • Is the fabric membrane brittle and showing signs of cracking?
  • Is the membrane now chalky to the touch, unable to be “polished”?
  • Is the dome prone to leaking at penetrations, valleys, or other joints?
  • Do you have other concerns not listed above?

If you answered “yes” to any of these questions, our team can help you properly address any concerns. Contact Dome Technology at 208.529.0833.

When the surface looks dirty, customers can clean the outer PVC airform with a three simple tools—mild detergents, soft brushes, and low-pressure water are all it takes to restore most membranes to original condition. High-powered pressure washing is discouraged and might remove the membrane’s protective coatings applied to maximize the lifespan.

Port Saguenay 2020 (125)

A project summary detailing Dome Technology’s recent work for wood-pellet producer Barrette-Chapais at the Port of Saguenay, Quebec, Canada is […]

A project summary detailing Dome Technology’s recent work for wood-pellet producer Barrette-Chapais at the Port of Saguenay, Quebec, Canada is available now.

Barrette-Chapais first contacted Dome Technology about a ship-loader project for a new transload facility in Quebec, Canada, but when portside availability changed, so did their plans.

Flat storage was Plan A for the Port of Saguenay site, but after weighing a reduction in available space against storage requirements, the decision was made to shift to a dome, said Granule 777 general manager Yann Sellin.

Barrette-Chapais conveyance system

Dome Technology was contracted to build two DomeSilos, measuring 120 feet (36.5 meters) in diameter and 131 feet (39.9 meters) tall and each capable of storing 21,000 metric tons. Because of their geometry DomeSilos are able to store more product in a smaller footprint, stacking pellets deeper and storing them all the way to the structure’s apex.

truck unloading

According to Dome Technology sales manager Cameron High, one of the customer’s main requests was the ability for truck drivers to pull in, unload product, and return to the pellet plant without interruption and on repeat. “They wanted from start to finish a fully automated system,” he said.

Dome Technology also acted as construction manager, supervising Canadian crews on all equipment installation—load-out system, bucket elevator, and conveyance. The Bruks conveying system is the most exciting feature for the company, Sellin said.

Barrette-Chapais domes

Pellets are produced at a Granule 777 pellet plant nearby. Upon arrival at the facility, they are dumped into a truck-unloading hopper and conveyed to a bucket elevator, which delivers them to a reversing conveyor on top of the domes.

For more information on the Barrette-Chapais project, including more photos and an explanation of the outbound conveyor and why dome construction was ideal for the harsh Quebec climate, click here. In addition, many of Dome Technology’s industrial projects are detailed in our case-studies page.

Kingsville Independent School District Sports Park

Two storm shelters built by Dome Technology served as a safe haven last weekend as Hurricane Hanna made landfall on […]

Two storm shelters built by Dome Technology served as a safe haven last weekend as Hurricane Hanna made landfall on the Texas Gulf Coast.

On July 25 the Corpus Christi Caller Times reported the American Red Cross had opened the emergency storm shelters at H.M. King High School in Kingsville and Tuloso Midway High School in Tuloso to provide protection from the Category 1 storm. Dome Technology built these storm shelters in 2015, and both were finished as gymnasiums.

Kingsville storm shelter

Kingsville Independent School District sports park—read more about this project here

Dome Technology’s steel-reinforced concrete structures are engineered to meet FEMA 361, ICC-500, and National Storm Shelter Association standards and provide almost absolute protection in extreme weather events; based on current knowledge of tornadoes and hurricanes, occupants of a safe room built in accordance with these guidelines will very likely be protected from injury or death. These domes provide peace of mind for those in areas experiencing tornadoes, hurricanes, typhoons, earthquakes, or fires on a regular basis.

Tuloso storm shelter

Tuloso-Midway Independent School District FEMA dome

Many community storm shelters are designed for multiple functions. Besides providing protection, these buildings serve as first-responder facilities, community centers, religious facilities, and schools.

Built to last a lifetime, the domes provide:

  • Open floor plans that can be customized for various uses in a community
  • Protection from hurricane and tornado winds exceeding 250 mph
  • Construction that meets LEED standards and features the latest green technologies
  • Substantial savings compared with the cost of conventional construction

See video of Dome Technology’s Texas storm shelters here, and read more about acquiring FEMA funding for storm-shelter projects here.

Chesapeake wood pellets

The typical model for unloading bulk materials is a 20- to 30-foot-deep pit with a hopper that moves product onto […]

The typical model for unloading bulk materials is a 20- to 30-foot-deep pit with a hopper that moves product onto a feeder conveyor coming out of the ground. But for facilities near water and with soggy soils, the pit’s excavating, dewatering, and waterproofing costs alone can be prohibitive.

unloading bulk materials (pellets) into pit

The good news is that there are other options, two of which are discussed here:

  1. Systems are available for unloading at grade or into a shallow pit. For instance, a rail car might pull directly over one of the Ashross RUM models, which provide either shallow in-ground or above-grade conveyance via a walking floor. Facility managers have to allow time for the system to unload the product, rather than just dropping it and advancing the cars, so logistically it may be slower, but customers can save on pit size.
  2. For truck delivery, Superior’s RazerTail Truck Unloader utilizes an unloader hopper that feeds product onto a transfer conveyor right at grade, but this system also requires customers to wait until the product is entirely unloaded—no drop and go.

Alternative systems like these can be expensive, but considering the cost of excavations, dewatering, sheet piling, and dealing with nuisance water, the investment might be justified. For information on how our custom engineering services can help you decide on the best model for unloading bulk materials, click here.

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In recent years Canadian cement producer McInnis Cement has been busy building itself as a serious player in the industry, […]

In recent years Canadian cement producer McInnis Cement has been busy building itself as a serious player in the industry, and it’s not finished yet as it expands business in Providence, Rhode Island, and the Bronx, New York.

McInnis Cement is the newest entrant in the North American cement market. Its plant in Port-Daniel–Gascons, Canada, is the first new plant to serve eastern Canada, the U.S. eastern seaboard and the Great Lakes region in more than 50 years.

And McInnis has positioned itself as a potential cement importer, committing to pursue investments that will allow for this expansion. At present, the company relies on one plant, but import capability provides a back-up mechanism for processes and acts as a contingency plan. That means the company’s supply will always outpace demand—good for customers now and in the future.

“Our customers are our priority, and we will never let them down. Our company has been built keeping customers in mind every step of the way,” said McInnis Vice President, Sales and Marketing, Francis Forlini.

As part of its efforts to grow business, McInnis built a facility in Providence, Rhode Island, and after two years in operation, the company was ready for an upgrade featuring a new DomeSilo for cement storage that would supplement existing flat storage.

“The initial 30,000-ton flat-storage warehouse has been very functional, and it will continue to be used in conjunction with the new storage dome. However, the dome storage was selected for the expansion because the warehouse operations had various limitations. While reclaiming from, it was difficult to offload a ship in a timely fashion,” said project director Dominic Demers, adding that unloading would often pause for 10 to 12 hours a day during warehouse reclaim operations. “For phase two, we wanted to combine operation flexibility and maximum utilization of our growing marine fleet.”

One project hurdle was the municipality’s height restriction, a requirement that “made it uneconomical for us to build silos, and we wanted to keep the operating cost low,” Demers said. “A dome was the natural choice for us.”

Image courtesy CIMA+McInnis

Dome Technology completed construction in 2019. The DomeSilo is 134 feet in diameter with a storage capacity of 40,000 metric tons. To maximize the terminal’s abilities, McInnis selected a barge unloader rated at an aggressive 800 metric tons per hour.

Dome Technology executed a prime contract directly with McInnis for the dome storage, structural steel and mechanical work for pneumatic transport and cement reclaim. More specifically, these tasks required installing a truck lane, steel storage silo, DomeSilo, structural-steel convey piping support, stair platform with connecting structural-steel bridge to the dome apex and a reclaim tunnel. The team also installed an FLSmidth Ful-Floor reclaim system.

An expansion in the Bronx

While Dome Technology worked on the Rhode Island project, McInnis called with an unrelated question: Could Dome Technology also install an additional truck loadout lane at an existing terminal in The Bronx, New York?

The Bronx terminal was already a unique facility in a unique position, situated “in deep enough water to enable berthing of large vessels, which is not the case for our major competitors,” Forlini said. Expansion would bolster its potential even more.

Within 130 days of construction starting, Dome Technology completed an additional truck bay for the Bronx facility, including concrete ramps and footing for the structural steel, mechanical equipment, piping and structural-steel installation. The team executed all structural and millwright work, and operations at the facility were not interrupted during construction.

This project highlights Dome Technology’s expertise outside its most obvious skill set: building bulk storage. “Our name is Dome Technology, and there isn’t a dome on the site. It was all about mechanical structural installation for material handling,” said Dome Technology vice president of operations Dan South.

With a fabrication shop on the same campus as corporate construction headquarters, Dome Technology engineers and construction managers work closely with team members who build features like stair towers, work towers, conveyor supports, handrails and walkways. This means customers are more likely to end up with a facility that operates seamlessly.

“We’re tied closely to the dome, so we know what (customers) want, and we know how everything interfaces,” said Dome Technology shop operations manager Kirby Sheldon. “We’ll see problems other fabricators won’t see.”

For projects requiring steel fabrication, Dome Technology has invested in equipment like the Voortman B808, which provides precision cutting, scoring, labeling and hole punching for beams. This machine “makes us more accurate because it’s all computer numerically controlled [CNC], and it makes us more efficient because it reduces our man hours on fabrication,” South said. “It will do all the layout for us, and that adds to our accuracy.”

The second Bronx truck bay is in use now, and operations are running more smoothly and more efficiently. “We are doing between 60 and 70 trucks a day with no lines building up. It’s helped tremendously,” said terminal manager Stanley Sisson.

Image courtesy CIMA+McInnis

The customer as the expert

Making sure the McInnis terminal network is very well designed to cover market demands has been a deliberate decision on the part of the company. And expansion isn’t complete just yet: McInnis is currently planning to use the same type of dome when expanding its Oshawa/Toronto terminal, Forlini said.

Helping customers reach their goals and climb closer to their business potential is always front of mind for Dome Technology. The company has built more than 700 industrial and commercial structures worldwide and continues to expand its expertise to include liquid storage tanks, concrete repair, silo rehabilitation, steel fabrication and erection, millwright work, general contracting and more.

Dome Technology is driven by the pursuit of innovation and advancement, typically employing a design-build method for the entire project but providing guidance for those seeking support in specific portions of projects too. The McInnis projects highlight Dome Technology’s breadth of expertise.

“For nearly four decades we’ve relied on a collaborative approach with companies—they’re in the driver seat, and we help navigate,” said Dome Technology CEO Bradley Bateman. “In every project Dome Technology incorporates innovative technology to maximize storage capacity and system performance with an economical solution.”

A version of this article was published in the July 2020 issue of International Cement Review.

Chile Coppex S.A. Clinker DJI 0152

Dome Technology has produced a new video highlighting a clinker dome in Chile built to meet seismic resistance the local […]

Dome Technology has produced a new video highlighting a clinker dome in Chile built to meet seismic resistance the local code requires.

Click on the image above to view video

Dome Technology was contracted to build a dome at the new site where BSA Cementos will increase its production by 950,000 tons per year during the first stage of operation, with as much as 1,900,000 tons a year being processed per year. The contract for the project is with SALFA Montajes S.A., and the final customer is BSA Cementos.

Selecting a dome “has several technical advantages that will eventually be reflected in economic benefits for our final customer,” said Nilo Araya Gonzalez of SALFA Montajes, head of supplies for the BSA project, adding that quick construction time, a smaller construction crew and a low-maintenance final product were key advantages.

BSA Cementos dome

The plant is expected to have a continuous supply of clinker from the port for production, and “this dome allows the customer to have a 50,000-metric-ton stock of clinker in case there is a delay with shipping from the port,” said Dome Technology operations manager Eudaldo Chavez Zazueta said. “This enables them to respond to the local market effectively without disrupting the factory’s production output and increasing reliability of their whole operation.”

Chile is known for its seismic activity, “but even more important than that, we are known to have one of the most rigorous building codes regarding the considerations to be accounted for when doing any type of construction,” Araya said. ”The dome’s geometry gives it excellent stability and load-absorption characteristics; therefore, this design has important advantages in meeting seismic requirements that are mandatory in our country, which will as well translate into savings during construction.”

Every dome is designed specific to its needs and location. But in general, “the dome is such a rigid structure, and it has tremendous redundancies. There are no connections that can fail—it’s continuously reinforced everywhere. It’s ideal in that sense,” Dome Technology vice president of engineering Jason South said.

For more information on this project and its seismic resistance, see the BSA Cementos case study. The video can also be viewed on the Dome Technology YouTube channel.

 

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Although Dome Technology builds several dome models, the new Drive-Thru DomeSilo is a great match for customers wanting to load […]

Although Dome Technology builds several dome models, the new Drive-Thru DomeSilo is a great match for customers wanting to load and unload product quickly and efficiently.

Dome Technology developed the Drive-Thru so companies could fill truck or rail directly from the storage structure and speed up the process of product reception to delivery.

Continental Cement Co. Drive-Thru DomeSilo

Learn about Continental Cement Company‘s Drive-Thru here.

In general, the Drive-Thru incorporates a fill pipe or belt conveyor depending on the stored product, storage vessel, ladder access, truck scale, and appropriate foundation. “Companies can save on building a single drive-through storage facility by eliminating the need for multiple mechanical systems, two operators, and multiple structures,” Dome Technology sales manager Lane Roberts said, noting that this model is less expensive to build than a silo of similar capacity and ability.

The Drive-Thru allows for direct load-out, where stored product flows through a spout for direct load-out into the truck or rail. When used for cement or flyash, the dome will provide 100 percent live reclaim utilizing a fully aerated floor. For other product types, gravity and other mechanical reclaim systems can be used in the reclaiming process. This model is a true turnkey system—storage, conveyance, monitoring, and more.

Drive-Thru DomeSilo dome model

The Drive-Thru can be used as a day bin when built on a small scale, but in actuality “it’s more like a drive-thru silo—it can store so much more than a typical steel day bin,” Roberts said. The dome’s dimensions will vary by project and customer need; the bin size will likely range from 1,500 to 15,000 tons and will work well storing the typical drive-through capacity of 4,000 to 10,000 tons. However, when storing cement or flyash or when utilizing a fluidized floor system, “you could easily apply this same concept to a 60,000-ton DomeSilo,” Dome Technology CEO Bradley Bateman said. “There is no limit on the storage size for this technology.” The same applies to other types of stored product as there is no limit on the use and application of these systems.

For more information about dome models, visit our Choose Your Storage Dome page.

Gavilon

Whether preserving your product’s integrity or safeguarding the environment where it’s stored, protective coatings and liners provide solid separation. Here […]

Whether preserving your product’s integrity or safeguarding the environment where it’s stored, protective coatings and liners provide solid separation. Here are a few ways these coatings work for customers:

protective coating on roof

Primary containment

Protect what you store and the facility storing it with a protective coating. Fast-set polyurea is the product of choice as it cures quickly on vertical surfaces, yielding a smooth and uniform protective layer. Ideal for tank restoration, the coating is often added to the exterior to improve aesthetics too.

Secondary containment

Pits housing tanks can be lined with a HDPE membrane to prevent leaching of any product into the ground.

Floors and decks

For a sealer that is easy to clean and waterproof, select a protective polyurethane coating that’ll ensure a long life for your flooring. You’ll get increased protection from salt, oil, and traffic, plus strength and flexibility.

Tunnel lining

Our waterproofing coatings are sufficient for material-handling tunnels or those channeling excess water away from stored product.

sugar dome interior coating

Direct food contact

Food-safe coatings are necessary when storing products ready to go to the consumer, like sugar. This layer protects product by creating a barrier between product and concrete or steel, preventing debris from getting into food.

For more information about these products or how protective coatings can work for you, contact our sales team.

Boral

A DomeSilo, one of Dome Technology’s most popular models, allows companies to stack product deeper on a smaller footprint, requiring […]

A DomeSilo, one of Dome Technology’s most popular models, allows companies to stack product deeper on a smaller footprint, requiring less property at the site. The increased storage capacity is made possible by geometry: The double curvature of a dome lends itself to the ability to build up, rather than out, and the curve provides strength at all points of the structure, even at the apex. The entire interior of a dome, then, can be used to contain product.

DomeSilo interior

A dome provides ideal conditions for stored materials requiring a controlled environment. A fabric membrane surrounding the entire dome exterior prevents water and moisture entrance, blocking the introduction of outside water into the stored product. The dome’s insulated nature reduces heating and cooling of the walls and air inside, preventing condensation from forming on the interior. Foam and concrete provide humidity control and moderate externally generated temperature fluctuations.

Bulk-storage capacity

A dome’s concrete monolithic construction also provides a tolerance for some differential settlement. These qualities combined with geotechnical engineering and site analysis ensure proper foundation selection and performance.

For more information on storage capacity with this model, visit our DomeSilo page.

USA Peeples Industries Wood Pellets Shot0006^

As a leader in bulk and container stevedoring and terminal operations, Peeples Industries in Savannah, Georgia, knows what it takes […]

As a leader in bulk and container stevedoring and terminal operations, Peeples Industries in Savannah, Georgia, knows what it takes to plan a successful port project. Here, project manager Brad Orwig shares his insights:

Peeples port project

1. Be mindful of others.

One of the biggest hurdles when building on a port is doing so while others continue operations, whether within your own facility or at nearby locations on the water.

At a facility where multiple companies are processing different materials, “the operating team will not be happy if your project is causing downtime for them,” Orwig said, adding that being a good multi-use tenant, neighbor and team member is a must.

One way to achieve this is to have a strong and specific milestone plan at the front end, and instead of using a construction schedule as a guideline, use it for hard-and-fast deadlines. For instance, if the project is scheduled for completion in a week but will likely require two weeks of time, work around the clock to double your progress.

2. Identify your logistical supply chain.

Research available options for getting product to the facility rather than assuming the desired type of transportation will be accessible. A project can hit a standstill, for instance, if the plan includes rail transport only to discover the railway doesn’t service the location. To begin strategic preplanning, first set upon transportation via water, then set upon inland transportation, considering site and facility location.

Enviva port project

3. Be willing to invest the necessary capital into environmental stewardship.

Code enforcement will be diligent, and being proactive is always best. Each project ought to address water containment and include a storm-water plan, and since material-handling facilities will have hydraulic-oil waste, oil-containment features are necessary. Though expensive, Orwig said these systems are “something that costs a lot upfront but saves headache later.”

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