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Picture of DIY Concrete Necklace

Do you ever walk past brutalist buildings and think they would make great accessories? Ever look enviously at the lovely grey colour of driveways at other people's houses? If so, you are in the right place. From the material that brought you smash hits such as house foundations and that stuff you use to hold fence posts in place I bring you a concrete necklace!

The sharp geometric shapes and soft grey colour bring a new lease of life to an often underrated material. In this tutorial I will show you how to make a piece of statement jewellery out of concrete, using no fancy tools (unless you count scissors as fancy!). This would make a great gift for anyone who prefers simple, elegant and impressive jewellery.

Let's begin!

Step 1: You Will Need:

Picture of You Will Need:

For this project you can mainly use things that you can find around your house or from the recycling bin - no specialist equipment needed! The only thing you may not have to hand is the concrete, which can be bought cheaply from most DIY stores - you don't need very much. You may notice in the picture that there is a hole punch; I was originally going to use this but it turned out it was broken!

  • Stiff card (the type that you might make a birthday card out of)
  • Corrugated cardboard
  • Sellotape (the clear plastic kind, as wide as have)
  • Pencil
  • Ruler
  • Scissors/craft knife
  • Concrete (I just got a small tub from Homebase, but I think any kind would work)
  • Lolly stick
  • Spoon
  • Something to stir the concrete in (I used an empty plastic tub that used to have fruit in)
  • Old newspaper to protect your work surface
Fun idea for a fun and simple pendant :)
leonardipc4 months ago
Much work. I do it much easier and with the possibility of choosing the format, finish and thickness that you want.
I begin to make a mortar with pasty texture more to dry.
I open this dough between two pieces of plastic of common packaging, leaving the thickness I desire. With a spatula or even a thin-tipped knife cut into the shape I want and let it dry for 12 hours still wet the concrete. I make drawings or engrave shapes and the holes to pass the cord giving a finish even when damp. I let it dry for another 24 hours. After this time, put in a pot with water for another 48 hours, to better cure the concrete. After drying and finish desired.
Much simpler and with creativity, the sky is the limit.
Sorry for the translator, I'm not an English expert.
Jobar0074 months ago
How much does that piece weigh? Can you wear it a whole day without it being too much weight?
katel73 (author)  Jobar0074 months ago
It really doesn't weigh that much, so you could definitely wear it for a whole day. If you did want to make it lighter, you could always make it a bit thinner.
Jobar007 katel734 months ago
FlorinJ4 months ago
If you place something vibrating (like an orbital sander or, even better, a jigsaw) on the table next to the form into which you poured the concrete, and leave it on for maybe ten minutes or so after pouring, the vibrations will get the air bubbles out of the concrete, resulting in a smoother looking and also harder concrete.

Also, you shouldn't add water until the concrete becomes runny. The chemical reactions inside the concrete won't consume all the water, if you add too much of it. The unconsumed water will dry out eventually, leaving microscopic holes behind, which make the concrete softer than it should be.

The lower toughness, caused by either trapped air bubbles or too much water, is not so much of a problem for a necklace. But the resulting microscopic surface pores will accumulate stain and grease, over time. Not nice, IMO.

You can also mix pigment into the concrete, before pouring, if you want more colors than just grey. If you're after one particular color, it's best to search for and use white cement, instead of the regular grey one.

If you have the patience, you can also polish and then buff concrete to a glass-like smoothness. You can also embed pieces of colored glass, when pouring, then polish and buff. This can create quite interesting patterns. Or you can try out acid staining, after polishing, followed by buffing and waxing, to give it a look much like jade or colored marble. Concrete is a much more versatile material than you'd believe by looking at the many dull, grey surfaces that you usually see.
sarawelder4 months ago
I love this. It is well planned and well explained and the images are good. I have been planning to make small concrete pieces to incorporate into jewelry but I love the "naked" concrete look too.
jessyratfink4 months ago
I love it! Looks so clean. :)