concrete scanning and imaging services - locate rebar,with new build construction and renovation projects, the likelihood of needing to cut or core a concrete slab is high. there is inherent risk of striking rebar, electrical and communications conduits, and post tension cables during cutting, coring or drilling process. the cost of such mistakes can be prohibitive..what is rebaring technique in reinforced concrete works?,the three main operations carried out in rebaring for reinforced concrete construction bars are cutting, bending and tying. the diameter of reinforcement bars used reinforced concrete work mainly ranges from 6 to 42mm. these reinforcement bars come from the steel mill in specified lengths..
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gpr to locate rebar. concrete and construction professionals use ground penetrating radar to safely locate structural reinforcement within poured concrete prior to drilling, cutting or coring. take advantage of locating targets in real time, with only single-sided access required.
once you have your blade picked out, you can kick on your angle grinder and begin the concrete cutting process. this should be done by gently lowering the spinning blade onto the concrete’s surface and making an initial divot. from there, you can continue to make your cut deeper before progressing it forward with a bit of horizontal force.
concrete cutting involves a variety of techniques used by professionals to efficiently and safely cut large, square-or rectangle-shaped incisions into wall concrete or slab concrete. core drilling is the process of making precise circular cuts in concrete to make smooth openings for a variety of applications.
step 2 - cut rebar. in order for rebar to really do its job it needs to be cut to the size of the job minus a few inches. the rebar should be in the concrete throughout the entire area of concrete. if you are reinforcing a column then the rebar needs to be the height of the column.
slab curing helix ® micro rebar ™ concrete. avoid plastic shrinkage cracking, crazing and curling by managing moisture using one of these standard methods: use curing compounds in your mix; allow the concrete slab to dry at a consistent rate; spray on a liquid membrane-forming curing compound; or
cutting concrete blocks or slabs cutting concrete blocks or slabs without rebar in them is a bit easier of a task, but still requires proper planning. for concrete blocks, you will want to mark the location you want to cut and clamp the block down so you can make an accurate cut without the block moving.
concrete volume: concrete pre mix bags: concrete columns and footings: rebar slab: concrete cutting weights ~ sizes: core drill angles floor and wall: core drill angles floor or wall: directory: inch: inch: inch: inch: inch: inch: inch
steel reinforcing bars and welded wire reinforcement should be positioned in the upper third of the slab thickness because shrinkage and temperature cracks originate at the surface of the slab.
as stated earlier it is best that the structural engineer providing the stel beam solution takes a look at the possible of it will be easy using the spacing of the in the original design to work out the worst case of how many could be with an 80mm diameter hole.
it is recommended to place the control joints in the centre of the slab dividing the concrete into equal segments. the spacing of the joints is in the range of 24 to 36 times the thickness of the concrete slab. if you are using high shrinkage concrete, you might want to decrease the cut spacing.
use blades with soft metal segment bonds when cutting concrete with heavy rebar. do a safety check on your concrete saws before and after using. cutting concrete is a job for trained professionals so it’s safer to leave it to the experts. that’s where megasaw comes into the picture. we service residential and commercials projects, delivering only the best concrete cutting and drilling solutions for our clients.
the most common type of rebar is used by hobbyists is rebar #4, which is a ½ inch in diameter. rebar of this size can be cut with a hacksaw. larger rebar such as the kind used and industrial concrete work would need a different tool. bending it is easy to do if it is less than.5 inches in diameter.
a rebar (short for reinforcing bar), also known as reinforcing steel, reinforcement steel, or a deformed bar, is a common steel bar ( steel rods / reinforcing bar cutting blades ). rebar's are used as tensioning devices in reinforced concrete to hold the concrete in compression.
1) hammer-drill holes sideways into the cut surfaces of the concrete to make holes 3-inch deep for dowels (3/8 rebar that i already have sitting around) 2) remove all loose material from the dirt hole 3) clean rocks and concrete out of the fill dirt 4) shovel-in dirt into the hole and pack-down each 4-inch layer, repeat
small openings in existing slabs are usually core-drilled to the required diameter. larger openings are cut with a circular saw or a concrete chain saw with plunge cutting capabilities. because a circular saw makes a longer cut on the top of the slab than on the bottom, small cores drilled at the corners can be used to help avoid
the use of concrete slab rebar scanning before concrete cutting can result in minor delays, however, it will also result in a better analysis of the situation and helps in avoiding longer delays that can arise if a water main is hit or concrete cutting causes the shut off of a conduit.
in general rebar in residential construction needs to have 3 inches of concrete cover / or separation from soil when the concrete for footings and pads is poured against soil and if poured against forms, 1½ inch. if formed concrete not exposed to earth or weather: i.e. in slabs and walls, then ¾ of an inch is required.
try using rebar cutters https://www.boschtools.com/us/en/boschtools-ocs/rebar-cutters-22558-c/ i'm drill concrete with rebar and steel embedments the best method it core drill with water but a cheap alternate would be a rebar cutter drill with standard masonary bit until you hit the rebar then use the rebar cutter should have any issues.
rebars are usually steel rods running through concrete slabs that help reinforce their strength. if you’re doing any construction that involves cutting or coring into the concrete, the rebar could damage your tools or slab if you hit it. to avoid expensive repairs, use a rebar detector to accurately measure the depth and location of the rods.
steel reinforcement (rebar), including spacing, diameter and depth; voids within and below the concrete slab; water and radian heating lines (including leaks) any other object embedded in concrete; if you are looking to cut, core, or drill concrete, we strongly recommend you engage the services of a concrete scanning company.
most concrete foundations in residential buildings are four-inches thick with steel rebar and steel mesh for reinforcement. therefore, in order to access a drainpipe inside a concrete slab, the following equipment and tools will be required: a walk-behind concrete wet saw or hand saw with a diamond blade; a small sledgehammer (or pneumatic hammer)
follow the slab-strengthening plan, including any provisions that need to be implemented during the cutting operations. identify planned intersection locations of post-tensioned tendons. detension and reanchor those tendons at the perimeter of the intended opening. remove concrete to make the opening, using a disc cutter to cut through tendons.
block dowels - when placing a concrete foundation which will have concrete masonry units (block) erected on it, you will usually find the plans require installing block dowels, or vertical rebar to reinforce cells at a required spacing to give the subsequent block wall sufficient strength to withstand conditions to which it will be exposed, or to help it support loads it will carry as an overall part of the
slab sawing may be required to cut an opening for a new staircase, or to remove a section of damaged concrete. slab sawing is also effective for creating expansion joints in pavement or bridge deck joints. whatever the reason to cut through the concrete slab, aggregate technologies can engineer and complete the job to any specification.