How to Avoid Contact With Aluminum & Dissimilar Metals
NOTE: Aluminum shall not be embedded in concrete to which corrosive components such as chlorides have been added if the aluminum will be electrically connected to steel. WATER that has come in contact with a heavy metal (e.g. copper) Heavy metals leached into water can cause corrosion of aluminum. Acceptable …
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Placing Reinforcing Steel
Incorrect reinforcing steel placement can and has led to serious concrete structural failures. For example, lowering the top bars or raising the bottom bars by ½ inch more than that specified in a 6-inch-deep slab could reduce its …
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5 Ways to Isolate Dissimilar Metals
When these two common metals are combined and an electrolyte is introduced, electrons move from your active metal (carbon steel) into the noble metal (stainless steel). The result? Your carbon steel can rust …
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How to Remove Rebar from Concrete: Tips and Techniques
During demolition, rebar can be separated from concrete by using a hydraulic breaker or a jackhammer. The hydraulic breaker is a powerful tool that can break up concrete and separate the rebar from the concrete. The jackhammer can also be used to break up the concrete, but it requires more effort to separate the rebar from …
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How to Use Concrete Form Tubes: 14 Steps (with …
Form tubes make it easy to pour concrete support footings for mailboxes, fence posts, decks, and other structures. After digging a …
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How to Remove Steel Poles in Concrete
Use your shovel to dig below the slab of concrete on all sides. Since you'll be lifting the concrete out of the ground, you want to be thorough and try to get underneath the concrete. Usually, it won't be too deep in the ground. Make sure that you're wearing gloves for this task. Repeat this for every concrete slab you plan to remove.
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ISOLATION AND EXPANSION JOINT INTRODUCTION
Most people know that contraction (a/k/a control) joints are placed in concrete slabs to force them to separate at controlled places as the concrete dries or the underlying base shifts. Isolation and expansion joints serve a similar purpose, keeping the forces of expansion or shifting of a section of concrete from being transferred to an …
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Separate Entrance
With Master's Concrete, you can trust that your separate entrance will be installed correctly, safely, and with minimal disruption to your daily operations. ... miscellaneous, and ornamental steel fabricators serving the Southern California multi-unit, commercial, and residential. Facebook Twitter Youtube Linkedin Instagram. Contact Us +1 647 ...
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Separating ABS fitting
I need to separate and replace this fitting as it was previously leaking. How can I separate this as the pipe disappears into the concrete? See less ... Before installing the new pipe, slide the stainless steel sleeve up onto the existing (top) pipe, then put the rubber sleeve on the top pipe and roll the bottom part of the sleeve back on ...
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Expansion Joints in Concrete Done the Right Way
Isolation joints separate concrete from other materials, such as walls or columns. Like expansion joints, they use a compressible material, such as , to prevent the concrete from bonding to the other material. ... Improper installation can cause water leakage leading to further concrete damage and corrosion of the steel reinforcement. …
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REINFORCEMENT FOR CONCRETE— MATERIALS AND …
the steel and concrete so both materials act together in resisting beam action. For these reasons, steel is the most Fig. 2.2—Examples of plain and reinforced concrete: plain curb and gutter (left) and reinforced concrete T-beam (right). Fig. 2.2.1(a)—A simple beam loaded in the middle and
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7 Things to Know About Concrete Forms
For starters, concrete that has already gone through the curing process does not adhere to anything. You will need a bonding agent if you want to adhere to other materials to concrete that has dried already. Here is a list of materials that concrete does not naturally adhere to: 1. Existing dry concrete: If you want to pour cement …
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Placing Reinforcing Steel
One important reason for placing the reinforcing steel properly is to achieve the right amount of concrete cover—the amount …
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How To Break Up and Remove Concrete
Whether you're replacing an old driveway, removing a patio, or preparing for new landscaping, understanding the proper techniques and tools can make all the …
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What material should go between old and new concrete?
I recently poured a slab for a hot tub and I want to pour additional concrete around it for a walkway. I want to keep the new concrete separated from the hot tub slab in case they heave at different rates in the winter. What kind of material would be good to separate them? I've done some looking around but I haven't really found anything.
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Joining Concrete Slabs Together: Best Practices and …
For wider cracks, a concrete epoxy can be used. Concrete epoxy is a two-part system that is mixed together and poured into the crack. Once the epoxy has cured, it forms a strong bond that helps to prevent further cracking. Stresses can also be a concern when joining concrete slabs together.
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How can I tell if the concrete block walls of my house have …
How can I tell if the concrete block walls of my house have vertical steel and concrete reinforcement? ... of older concrete block homes by Hurricane Michael has you worried about whether your block home has the vertical concrete and steel reinforcement necesary to resist a major hurricane, there are two ways to find out: 1) …
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Guidelines for poured concrete over corrugated metal
The first floor, floor is 6 inch steel decking with 2inch of concrete with finished floor on top the exterior walls are mostly light gauge steel framing the wall facing ocean is re enforced cinder block to withstand storms. The same system is used for the second floor. The only part of wood structure in the house is the roof plywood for nailing ...
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Types of Joints
Stresses in concrete can be controlled by the proper placement of joints in the structure. We'll discuss three basic types of joints: isolation joints, control joints, and construction joints. ... Isolation joints are used to separate (isolate) adjacent structural members. An example is the joint that seperates the floor slab from a column ...
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Glossary of Steel Industry Terms
Steel – from Merriam-Webster Online. Pronunciation: stēl Function: noun Etymology: Middle English stele, from Old English style, stEle; akin to Old High German stahalsteel and perhaps to Sanskrit stakati he resists commercial iron that contains carbon in any amount up to about 1.7 percent as an essential alloying constituent, is malleable when under …
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Ways to Recycle and Reuse Concrete
How Concrete Is Recycled . Concrete is recycled by using industrial crushing equipment with jaws and large impactors. After the concrete is broken up, it is usually run through a secondary impactor and is then screened to remove dirt and particles and to separate the large and small aggregate.
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Three Types of Footings to Support Foundation Walls
Concrete-pier footings: Commonly used for decks and porches, poured-concrete piers can also be used for frost-depth footings for homes and other buildings. A spread base may or may not be needed depending on soil bearing capacity. Slab foundations are another option. Most slab-on-grade foundations are poured as …
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The steel–concrete interface | Materials and Structures
Although the steel–concrete interface (SCI) is widely recognized to influence the durability of reinforced concrete, a systematic overview and detailed documentation of the various aspects of the SCI are lacking. In this paper, we compiled a comprehensive list of possible local characteristics at the SCI and reviewed available …
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Steel vs. Concrete: Comparing the Pros and Cons in …
Steel construction often offers faster project completion times compared to concrete. Steel components can be prefabricated off-site, allowing for quicker on-site assembly. This efficiency reduces labor costs and project timelines, making steel a preferred choice for time-sensitive projects. Concrete, on the other hand, requires …
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7 Things to Know About Concrete Forms
Poured concrete is a viscous solution that can take up to 48 hours to properly set. During the setting time, the concrete needs to be contained in a concrete form. Concrete forms or formwork are ...
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How to Install a Metal Railing
A custom metal railing can be purchased from a welding shop. Mark recommended using one with solid steel posts. The one Mark installed was made by Mike's Welding Company. All the materials Mark used for this installation, including the caulking gun, the anchoring cement, and the coring drill, can be found at home centers.
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Segregation of Concrete – Causes and Prevention
Segregation of concrete is the separation of cement paste and aggregates of concrete from each other during handling and placement. Segregation also occurs due to over-vibration or compaction of concrete, in which cement paste comes to the top and aggregates settles at the bottom. Segregation of concrete affects strength and durability …
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Will steel continue rusting if it's completely covered in concrete?
Any rust is your enemy, especially in a perpetually wet space like concrete. I don't trust it unless it's media-blasted down to SSPC-SP10 and immediately hit with epoxy primer, followed by something to protect the epoxy from the sun. If the concrete will follow soon, you can do it all in one shot with a product like Amercote.
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Metal Deck For Concrete: Types & Uses of Composite And …
Do you have a job that requires metal decking for a concrete slab? We'll help you choose the right type of composite metal floor deck. This article includes cost, specifications, …
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How do you secure wood framing to a concrete basement …
Should I use steel or wood studs for basement exterior walls? Either way, though, yes, you want to separate the base plate from the bare concrete. With wood, you want something impermeable to water. I'd suggest the rubber window-wrap product for that. For metal, I used very thin pink XPS board to act as a bit of a thermal barrier.
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