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Services - Twelve inch holes for bollards

Thu, 06 May 2021 13:12:12 EDT

Core drilling 12" holes in asphalt in Charlotte, NC.

Every once in a while we get asked to do some misc. ironwork. This type of work has gone hand in hand with our normal job of core drilling as sometimes the products and or services are closely related. Often handrails, bollards, bike racks, and other misc. metalwork requires that core drilling is involved.

Since our first major project back in 1999. Which was the majority of the installation of all the misc. metal throughout the Concord Mills Mall located in Concord, North Carolina. We have developed many techniques for installing ornamental ironwork of some type which of course core drilling and installing 6-inch metal schedule 40 bollards. Over the years we have drilled 10-inch, 8-inch holes for bollards but eventually, we found that Twelve-inch holes for bollards work best, maybe even 14-inch when the bollards are to be set in asphalt. The larger core drill hole sizes allow more concrete to be poured around the six-inch steel pipe so it is harder to knock over.

Once we cored through the asphalt there was gravel and mud, which meant it was time to get out the post holes diggers and breaker bar so that we could make the hole 24-inches deep, hoping to get as much concrete around the pipe for a good foundation for the pipe to adhere too.

Digging in the dirt is not what we like to do,

in fact, I hate it, but when you got work to do, well you know, you have to do it. So after the dirt was extracted and everything was ready we set the bollards into the holes. What you can see in the picture is the layout of the installation. I always make a circle for where the core drilling will take place. Many times center of the hole is what we use to mark the circumference of the hole to be drilled, and of course a template of the correct size. To our surprise, the asphalt was only four inches deep, which made for more post-hole digging than we like, yuk! The holes had to be at least 2 and a half feet deep, so it took a little while for the digging to get complete. But in the end, it was done. The total number of bollards was 5. They were being installed to protect the transformers for the extra storage facility on Wendover Ave, Charlotte, North Carolina. Right across the street from Sir. Gus, which is a small restaurant I have always wanted to try, and it turns out the wait was worth it as they do have delicious food.

Sharon Rd is still alive, who knew.

Was any building code involved?

Apparently, it was as the bollards were placed more than 5 feet from the transformers as the grey boxes in the picture. In general, they were installed 60" from each other to make everything up to snuff and presentable. The depth of the bollards below grade was 30 inches. A ratio of more than 30 percent of the height was buried to allow for impact. We painted them safety yellow and filled the metal tubes with 5000 psi concrete for extra sturdiness.

Services - 12 inch core drilling in Charlotte North Carolina

Sun, 15 Nov 2020 20:07:03 EST

12-inch core drilling in Charlotte, North Carolina is something we do about 240 times a year. Most 12-inch core drilling is for large drainage pipes that return the typical residential or commercial wastewater to areas that take care of cleaning the used, nonpotable water back into the natural ecosystem.Though not always as we have core drilling 12-inch holes through concrete walls and pillboxes for large electrical utility providers in the North Carolina region.But alas this particular hole in the quite well-built 10-inch reinforced concrete wall was for some plumbers that needed to pass 10-inch drainage pipe through this wall. And yes it is currently being built, at the time of this posting, on Brevard St, Charlotte, NC. though I doubt very much that you could now see it as this type of work usually gets covered up by dirt because it is part of the infrastructure of the 6 story apartment building being built on these lots that now have the city tramline system running directly in front of it, making this street a popular place for city type people without cars to get around to where they need to go without using the bus system. In other words, Charlotte's bumbling mass transit system, that very few people use and is more of a traffic Hazzard and delay than a useful tool for all to use. But if you need to use it, then I guess it's great. And the work to make a large enough hole for the pipe put food on our table, so in its own way perspective is a many-sided thing.Back to core drilling 12-inch holes in a reinforced wall. The core drill motor we used was the trusty Milwaukee 4004-20. Milwaukee's best model, in my opinion, can core drill holes in concrete from 4-inch to 14-inch and does a really good job of it.Depending on the hardness of the concrete being drilled the actual time can take up to 10 minutes to wet core drill a 12-inch hole in the average driveway or sidewalk, but ina reinforced concrete load-bearing wall such as this it might ake u to 20 minutes to completely bore through the wall.

Services - 12 inch core bore Hickory North Carolina

Wed, 07 Oct 2020 13:36:58 EDT

This is a 12-inch core drill bit putting a hole in a manhole on Center St., Hickory, North Carolina. Usually, a 12-inch hole is not that difficult to core into the side of a round manhole with our equipment. But even this one put our Milwaukee core drill motor to the test as we had to drill a new drainage trough through the bottom of the water basin to the existing water channel inside the prefabbed manhole. As can be seen, our special rig can be mounted upside down as we perform the core drilling for the 8-inch plumbing drainage pipe to be inserted into the hole with a rubber sealing boot to once we are done.

Services - core drilling in asheville north carolina

Fri, 08 May 2020 20:28:12 EDT

Asheville North Carolina is where we core drill nearly 2734 core drill holes in concrete walls and floors for the past 12 years. As one of the one only core drilling companies that will service asheville we are proud to do so. These are some 12 inch core drill holes we made for a dumpster enclosure in Asheville.

Services - core drilling 12 inch holes for bollards

Tue, 05 May 2020 14:31:00 EDT

here in this picture we core drilled 12 inch holes for bollards for the r and L trucking company in China Grove, North Carolina. Most of the time core drilling a 12 inch hole in a floor is not overly difficult. But at this core drilling project there just happened to be an unlying concrete footer that had a bunch of rebar embedded in it. This caused the core to not want pop out of the hole freely.