overlay topping
 

overlay topping
we are looking for an asphaltic overlay topping to be added to the floor of an armoury. the existing concrete slab has a two inch asphaltic overlay. we are building the floor adjacent to the stairs approximately 2" to 0". it is not known what the original material is, but it may be a special asphaltic mix used 100 years ago for this purpose. any suggestions?
thanks, dik