Get 3/4"-to-dust ballast ( i.e a mix of varying sizes of aggregate and sand ) from your local builders' merchant and mix it with cement in the ratio 1:5 cement to ballast by volume. Cement paths look a little ugly IMO. If you want, you could add a final layer of concrete with more decorative gravel ( just sand and gravel, ratio 1:5 again ), then when it's started to go off run a stiff rush over the surface and this will reveal the decorative gravel. Just an idea,
Andy.