One of the things I've been wanting to do for a while is to come up with some way of making decent looking ash ballast as seen in British engine shed and goods yard areas. I tried using sand fixed in place with dilute PVA and then painted with both poster paints and masonry paint once it had set. This looked pretty good ....... until the first really hard rain storm, after which it just looked like mucky sand while all the surrounding buildings were covered in black splashes of paint.
In the past I had covered a smallish area in ballast mixed with sand and poured a tin of old gloss paint over it. This took weeks to dry (luckily it didn't rain at that time), but it looked pretty good when it did. The only thing is I would need to find GALLONS of paint to do the interchange yard at Gooey and the standard gauge fiddle yard.
Then, last weekend, we were at a car boot sale and I managed to buy a tin of Wickes cement dye (black) for 50p. So this morning I made a mix of 3 parts sharp sand to 1 part cement, added the dye and plenty of water to make a really sloppy mix. I went for sharp sand as I didn't want the surface to be too smooth, but if you used ordinary builder's sand and smoothed it with a float, I reckon this method would be good for making tarmac.
I laid the sloppy mix and spread it out nice and smoothly, but instead of giving it a good final smooth, I ran the edge of the trowel over the surface lightly to rough it up a bit. After an hour or so, when the cement was still "green", I ran an old car over it to make some wheel tracks. Here are the results;
I made a weighbridge outside the yard offices from a piece of Pola roofing with a wire netting safety barrier.
I'm planning on getting a Modeltown coal yard building from Llanfair which will sit pretty much where the camera is here. The narrow gauge wagons sit on the "ramp" for convenient loading / unloading, either from lorries, or the standard gauge trucks behind.
The ash ballast actually looks a lot rougher in the photos than it does in reality. Overall, I'm well chuffed with the way it's turned out. Just means I've got loads more to do now.