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Questions tagged [rebar]

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0
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1answer
49 views

Hanging a ceiling lamp from reinforced concrete; what tool do I need to avoid rebar?

I'm trying to hang a ceiling lamp from what appears to be a reinforced concrete ceiling. My anchors require a 40 mm deep hole, but I don't succeed in drilling more than about 35 mm deep with my ...
0
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0answers
73 views

Can I cover rebar sticking vertically out of the ground with something that would permit me to pour concrete over top of it?

First off, this project is free from review from inspectors; i.e. none of this has to be to code. I want to pour a concrete column. The column isn't structural - it's like a column you may find at ...
2
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5answers
412 views

Cut rebar in concrete

I opened up a hole in my concrete wall to pass a threaded PVC 2 inch male adapter. On the other side there is an aluminum metal sheet. The problem is that I hit rebar and can not change the position ...
0
votes
1answer
92 views

Do I need rebar and footing for a 1'4“ tall 4” thick concrete wall?

I'm building a small concrete wall for an inground sandbox. The wall will be about 1'4" tall 4" thick and the longest 2 sides run just over 80" long, it is an L shape and the other sides are fairly ...
2
votes
1answer
124 views

How to lay rebars for a 4'x4'x12" footing for a column?

I have three columns to support lvl beams under an addition and have a question about proper rebar layout for each (identical) footing. All specs are already checked by engineer, but there is one ...
0
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3answers
139 views

How much shear load can rebar withstand?

I'm thinking of integrating rebar into a short grape trellis as horizontal supports for the vines to climb on. Is there anywhere I can get the deflection/load information for rebar spans? As currently ...
2
votes
1answer
726 views

How to suspend rebar cages for piers

Hello. We are converting a former metal portable building used for a school classroom in to a living space. We have got all the site plans, remodel plans, electrical and foundation ECT. We are trying ...
0
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4answers
3k views

Hammering a rebar into the ground without bending it

I want to hammer a rebar into semi-hard ground (about 2 feet in). What options do I have in order to hammer it in straight, without bending it in the process? EDIT: This is a 3/8″ diameter rebar. ...
0
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1answer
276 views

Do I need steel beams (rebar) for a very short block wall (on top of

Do I need steel beams for a very short block wall (there is an existing poured cement wall and we wish to raise it by about a foot or two) to raise the height of the wall around the stairs. On top of ...
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2answers
110 views

Concrete column splice - weld or surround with 6mm?

I have a concrete column using 16mm rebars. The column needs to be extended (and of course the rebars) for the 2nd storey of the house that is being built. Should the splice be welded or surrounding ...
0
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1answer
233 views

Terminology - rebar “tie wire” or “tire wire”?

This is about tie wire that is used in rebars in construction (e.g.: RCC beam and slab). Sometimes I hear people say "tire wire" instead of "tie wire". Is "tire wire" a valid alternative terminology ...
0
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3answers
268 views

How to hang electric fence from posts?

I need to make some posts for a small electric fence (designed for small animals / gardens) in my backyard. This just encloses my vegetable garden to keep out rabbits. My wire is aluminum. I want to ...
0
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1answer
745 views

How to drill to insert rebar into a large rock (5mx5mx5m)

I am pouring a reinforced concrete beam. It contains rebar. I would like to insert the rebar (horizontally) into this rock: What kind of drill and drill bit and to what depth should I drill to insert ...
3
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1answer
629 views

How should I prepare the site for a concrete step?

just bought a house where we've got an existing concrete slab porch that is 12" above the adjoining sidewalk and it does not have a step. We want to add in a large 6" tall x 3' wide x 11' long slab ...
1
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2answers
341 views

Maximum height of hand-shaped concrete curb?

I need to guide water flow at the end of my driveway (see this question). My plan is to put in a concrete curb or hump to guide the water. I've gone all over the map in thinking of how to build it, ...
3
votes
2answers
13k views

Adding rebar to deck footings and piers?

I've heard a few people mention adding rebar to deck footings and piers to make them stronger, but I haven't been able to find any details on how exactly to do this. Is it sufficient to just hammer ...
0
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2answers
21k views

How big a hole do I have to drill in concrete to embed rebar in it?

I have a concrete patio that I'd like to use as the foundation for a CMU wall. I'd like the CMUs to be tied into the patio slab with rebar. I get that the gist is to drill a hole in the slab, put ...
1
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1answer
75 views

Brick pillars gone now what?

I have a back concrete patio in pretty good shape. Surrounding it on 2 sides are concrete pads (| is one pad and the other is -). These two pads are about 1 foot a piece wide. The X's are the brick ...