The Balloon Density Apparatus is considered to be useful in the field study of in-situ density and unit weight of compacted soils in particular. This method uses a container filled with water, a hand pump, and a flexible rubber balloon to calculate the density of the soil.

This method is very accurate since the cylinder has a graduated scale to enable the researcher to measure the quantity accurately. The Balloon Density Apparatus is recommendable for on-site test especially for soil test since it is portable and easy to use. This is effective in different soil classes especially the compacted earth fills and the materials with particle size of up to 13mm.

However, this method is not applicable for the very soft soil or the soil that do not have the consistent volume. Compared to other methods such as the Sand cone or Nuclear density gauge, the Balloon density apparatus is more economical and less dangerous hence serval popular in the field work.

When used with accessories such as the Aqua-Check Moisture Tester, the Balloon Density Apparatus offers more benefits that may include improved accuracy of soil density and overall project reliability.

Determination of density of soil is very essential for construction purposes and Balloon Density Apparatus is the most effective way to get field test results for density of soil needed for a construction project.