Concrete Marble Construction Process
Mixture
Fibers and admixtures are the last things you add to the mix. The mixer tends to bind up when these ingredients are added at the end, so adding them helps prevent that slowly.
You do not want the mixture to be too fluid, so it should have the consistency of taffy. But it must still move around the form to form natural looking veins. In addition, you do not let it dry so much that it leaves big voids on the construction project face to fill. Your mix should feel sticky compared to regular concrete after mixing it in your fibers.
Dusting
A key component of the process is how the forms are dusted. Every technique has its benefits, and everyone has their process. You will make something unique no matter what you do. Put about a half handful of powder in your hand and stand a few feet away from the form.
Nature will take care of the rest after you throw the powder at the form. It should be scattered randomly throughout your form since you can always add more. A similar approach can also be taken by blowing out the form and reintroducing it.
A pattern across the entire concrete face will most likely require multiple throws of bigger pieces. It is crucial that you avoid getting a huge buildup of powder in the corners of the form; it will ruin your concrete. Throw any built-up powder back into the form using a scraper and a flick of the wrist.
Casting
The mix can be slightly wetter than normal, resulting in more blooms on the table, creating the illusion of fireworks.
1. You can fill the bucket with concrete and place it on my casting table, then carefully lay the mix over the powder. Putting so much powder in one place will result in concrete rolling over it. Instead of having clear and concise marbling and veining, the piece becomes a bit cloudy from steamrolling.
2. Place handfuls of your mix onto the powder when it has reached your desired consistency.
3. After you have a couple of continuously touching handfuls, gently massage the backs of the handfuls to ensure the powder stays in place.
4. Make sure you massage the edges of your forms well to prevent as many air bubbles on the sides as possible as you place handfuls and fill up your forms. You can cover up the piece by leveling the back with your forms.
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Published By
Global Associates
www.constructioncost.co
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