Modeling Asphalt Roads

modeling asphalt roads

To begin modeling an asphalt road, you’ll need to use the correct tools. Airbrushes, Masking tape, and Acrylic paints are a must. You can also use Scultamold. It’s best to model the road as accurately as possible to make it look realistic. This article will show you how to do that.


Airbrushes for modeling asphalt roads can help you achieve the realistic look of actual pavement. Real roads have great variation in color, and you may have a difficult time capturing that on your model. Even the time of day and the weather can influence the appearance of pavement. To create realistic-looking pavement, use a base coat of black, medium gray, or beige. For best results, study real roads in order to get the right color scheme.

Creating realistic-looking roads is not difficult with a few airbrushes and a bit of practice. Roads are an excellent practice project for beginners because you can start with thin paint and build up color as you progress. Once you are familiar with the techniques, try applying weathering effects, if you haven’t yet.

Acrylic paints

Acrylic paints are a great way to create realistic roads in your model landscape. They come in a wide variety of colors and are water soluble, so the lines won’t lift off the road or damage the surrounding areas. You can apply them with brushes, rollers, or even spraying equipment. This makes them extremely versatile.

Acrylic paints are ideal for painting roads because they are easy to thin without using solvents. This allows you to slowly build up color without over-painting the model. You can use foam brushes to apply thin layers of paint. You can also layer additional colors on top of the base coat.


Scultamold (r) is a non-toxic modeling material that sets hard but is extremely lightweight. It is an excellent choice for dioramas and stage scenery. It combines the properties of plaster and clay, and it does not shrink or crack. It also sets in 30 minutes.

The basic system consists of a rigid base and rigid edges. It is then covered with smooth-it, a non-shrinking joint compound. It is applied with a palette knife. Sculptamold also makes a smooth subsurface for roads. This prevents the road surface from cracking.

Once the Sculptamold has cured, the next step is to paint it. It is possible to apply a variety of colors to Sculptamold. A good paint for this is Woodland Scenics Earth Colors. It should be applied in small sections, usually one square foot (12 x 12 inches).


Sandpaper for modeling asphalt roads can be found in various grit levels, from coarse to fine. The finer grits produce more convincing details on a smaller scale. The sandpaper shown below is made of a finer grit, and is a good choice for modeling the center line.

To create a realistic-looking model road, start by using a sandpaper that is 150 to 220 grit. When sanding, be sure to wear a dust mask and wear safety glasses. You can then apply a joint compound to fill in the scratches and dips. To create a smooth surface, apply the compound thinly.

The 240# sandpaper has the most dense surface and the smallest amount of microscopic unevenness. The smaller the number, the smoother the surface. 240# sandpaper is the finest sandpaper for modeling asphalt roads. Using a coarser sandpaper would reduce the surface’s smoothness.

For sandpaper for modeling asphalt roads, use modified poplar wood. Its fibers have a supplementary, pre-cured layer on them. This primer makes it easier to wet. Unlike mahogany wood, this type has a much smaller roughness depth parameter.

Backcalculation software

Backcalculation software is useful for modeling the properties of asphalt pavements. These programs use a mathematical model to calculate the behavior of a pavement in a given load condition. A variety of different models are available, and they are often used together to design and analyze roadways. Some backcalculation software includes additional features, such as the ability to include the effects of interface conditions.

A user can select the number of layers and a corresponding subgrade. This allows them to adjust the level of pavement support by changing the input data. For instance, they can change the base layer’s density to 40000 MPa. For the subgrade, they can use the commonly-used value of 300 MPa. These changes can lead to more accurate backcalculation results.

AASHTOWare Pavement ME Design software provides a comprehensive set of tools for pavement design. The software includes a user-friendly interface and several functional enhancements. Various features include a SI version and highway capacity limits, data viewers, climate summaries, batch processing and error checking for individual inputs. Users can also use the program to perform various performance and distress analyses.

The software uses a backcalculation algorithm to calculate individual pavement layers. This method allows the software to model different types of pavements, including those that are covered with asphalt.

About the Author Jamie

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