Search

 

 

Informative Articles

Building Your Dream Home - Part 3
Exterior Framing Continues With the home's sub-floor down and the exterior walls framed and up, the framing crew was on to the roof. Though the roof was rather simple in structure with just a 12/12 pitch and no valleys it was a significant...

Common Sense Fire Safety
This will come as no great surprise, but did you know that the majority of house fires are the result of cooking? In fact, studies show that cooking results in approximately 400,000 fires every year in single family homes and multiple...

DIY Electrical Works - is it worth it, and how does Part P affect me?
So what's changed? Consider the dramatic increase over the last 10 to 15 years of electrical equipment in the home such as: Bathrooms - low voltage lighting, electric showers, under-floor heating (popular in bathrooms with tiled...

Home Buying
The first step in the home buying process is to find out exactly what kind of funds you have available – either with a mortgage ( http://www.onestopimmigration-canada.com/mortgages.html ) or if you’re lucky - cash. In Canada, you will have to be...

What Are Some Of The Different Types Of Welding?
Welding is used across the globe in some way in nearly every industry you can imagine. It’s used in industrial settings, open air environments, underwater and even in outer space. Welding is used on almost every scale – by handymen and structural...

 
Concrete Cutting: An Insight To Concrete Core Drills and Concrete Core Drilling

Concrete core drilling is the process of drilling perfectly round holes through concrete walls, floors and other concrete structures. Concrete core drilling is the most commonly recognized use of any diamond concrete cutting tool. Concrete core drills or "core rigs" can be operated in any orientation, vertical, horizontal and even upside down thru concrete ceilings. A concrete core drill bit consists of a steel tube with diamond segments brazed or laser welded on the drilling end. The core bits are mounted on the rotating shaft of various types of concrete core drilling machines. Most concrete core drills are connected to a stand that is secured to a wall or floor with a concrete anchor and a bolt but there are also concrete core drills that use vacuum pressure to attach to a floor. There are also many different types of "hand held" core drills. Concrete core drills can be powered by electricity, hydraulic, gasoline or air power sources. Concrete core drill bits can range in diameter from 1/2 inch to 72 inches in diameter and drilling depths are virtually unlimited with the use of extensions. A solid cylindrical slug or "core" of concrete is removed from the hole after the drilling is complete. The applications for concrete core drilling are virtually endless.

Core holes are used for "utility penetrations" such as electrical, plumbing and heating but are also commonly used for venting furnaces or clothes dryers. Concrete core drilling also allows concrete structures to easily be made ready for sprinkler systems, HVAC ducts, fiber optics, phone lines, computer lines and much more. Core drilling methods are used widely


Nat King Cole, En Espanol
From the 1940s through the mid-'60s, Cole was one of America's most beloved and familiar singers. But his fans might not be as well aware of the crooner's Latin American tours -- or with the three Spanish-language records he released in the 1950s. Now, some Spanish-speaking musicians have created an album paying tribute to Cole's Latin hits.

Photo: Paul Sikivie And Aaron Diehl
A Blog Supreme is on vacation. Until we return, we are periodically leaving you with some shots from The NPR Jazz Photography Pool on Flickr. Here, Ed Newman writes about capturing some up-and-coming musicians on film recently.

Photo: Paolo Fresu
<em>A Blog Supreme</em> is on vacation. Until we return, we are periodically leaving you with some shots from The NPR Jazz Photography Pool on Flickr. Here, Vicenzo Cosenza writes about capturing the great Italian trumpeter on film recently.

First Listen: The Bad Plus, 'Never Stop'
It may be one of the leading names in jazz, but The Bad Plus probably wouldn't mind if you called it a weirdo instrumental rock band. Hear the decade-old trio's latest album, the all-original <em>Never Stop</em>, in its entirety until its release on Sept. 14.


in underground utilities construction, most commonly, manhole taps, underground vault taps, and wherever sewer, water, steam, air or communication lines pass through a concrete or brick structure.

Line drilling or "line coring" is similar to perforating, when core holes are drilled in a series of overlapping holes in a row, allowing for one large piece of concrete to be removed. Line coring is an effective method for cutting and removing small, square or rectangle openings of almost any thickness of concrete where other concrete sawing or cutting methods cannot be applied.

Although not recommended, concrete core drilling can be performed by an advanced "do it yourselfer" and the equipment necessary to perform concrete core drilling is readily available at your local tool rental and supply store. Most professional concrete cutting companies have a minimum charge of $250 to core a hole for you and it can take a professional as little as 10 minutes to unload his equipment, core the hole, and reload his equipment. Yet, I have seen homeowners rent the equipment and spend an entire weekend trying to core a single hole and then call a professional concrete cutter in to complete the project anyways. Just like with any trade a professional concrete cutter will make his job look easy.

© Copyright 2005 Affordable Concrete Cutting, Inc.

About the author:

To learn more about converting your basement into an apartment, remodeling your basement or just installing a precast concrete stairway and a bulkhead please visit Affordable Concrete Cutting Boston's website at http://www.affordableconcretecutting.com