-1/4 bucket Fly Ash -Small handful of glass fibers (like a pinch of salt - not precise, but a small amount)

Wet ingredients:

-800ml of poly-plex or liquid latex (Liquid acrylic can be substituted where liquid latex is not available)

-300ml liquid water reducer

-Water**

NOTE: The liquid additives can be omitted and replaced with water with acceptable results. The water reducer and liquid latex are needed only where maximum strength and workability is essential.

**In order to make the concrete strong and workable the amount of water is critical and can change depending on a number of given criteria. For example, if the sand you are using is slightly damp you would likely need HALF the amount of water than if your sand was bone dry. If it is hot outside you may find yourself needing more water than on a cool day. Adding the correct amount of water takes practice.

Mixing the concrete ingredients is the most important stage

You can mix concrete in a mixer, a bucket or on a piece of plywood with a square head shovel. This depends on the amount of concrete you need to mix. With all methods A thoroughly mixed, well proportioned cement mix is the secret to easily workable concrete. If you are a beginner you should probably mix the concrete much longer than you would otherwise think- and it can be hard work. The best concrete mix in an entire day of pouring concrete is the one that spins in the mixer throughout a long lunch break!

Mix all dry ingredients thoroughly before getting ready to add water. You will add water in SMALL quantities mixing thoroughly between adding more. You will find that the small amounts of water that you add will get immediately absorbed by the overly dry mix and you will feel compelled to add a big splash of water. DO NOT DO THIS!

The concrete will readily absorb water to a certain point of saturation, after which seemingly a thimbleful more will reduce your fine sculpting concrete to a watery mess. Concrete that has been over watered is completely compromised in terms of strength. You may be able to add ingredients or wait a while to get some sort of useable substance but this seriously weakens the end result in an undetectable fashion to the naked eye.