The pinstripe aggregate method uses corrugated craft board to help achieve a pinstripe pattern of exposed and unexposed aggregate.
The craft board creates a corrugated pattern in the surface of the concrete. After the concrete is set, the hills are ground down to expose the aggregate, but the valleys remain un-ground, creating contrasting lines of exposed aggregate and lines of no exposed aggregate.
In this instructable, I also added some white paint to the valleys to help highlight the effect.
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Step 1: Things You Will Need
- dust mask
- latex gloves
- white cement
- blue sand
- larger diameter tube
- smaller diameter tube
- corrugated craft board
- spray glue
- disposable cups
- popsicle sticks
- paint brush
- white paint
- knife sharpening stone (or other sanding/grinding tools)
Step 2: Instruction Video
Refer to the above instruction video for a demonstration of the method.
If you would like any further clarification or support on any of the steps, please feel free to leave me a comment and I will help as best as I can.
Participated in the
Concrete & Casting Contest