Asphaltic Overlay
Asphaltic Overlay
(OP)
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
thanks, Dik





RE: Asphaltic Overlay
It is likely a very fine mix, similar to an asphaltic concrete base course or sand-asphalt hot mix. I assume you will have to place the mixture in a cold state; so you'll need to modify the mix to accommodate a cold-applied asphalt cement (solvent release).
RE: Asphaltic Overlay
Dik
RE: Asphaltic Overlay
RE: Asphaltic Overlay
It shouldn't be too hard to duplicate the mix, but I'm not sure what your placement constraints might be. Will you have to place, spread, and compact by hand? If so, you'll either have to develop a solvent based mix, an emulsion based mix, or batch it hot in small quantities to move with wheelbarrow or the like.
There might also be a limitation on the use of solvent based asphalt due to the volatility and the initial odor.
RE: Asphaltic Overlay
Dik
RE: Asphaltic Overlay
The overlay appears to be an asphaltic 'concrete' type of material that was installed approx 100 years ago. Remediation is to correct for a slope at the stairs and to provide the appearance of restoration and not remediation.
thanks, Dik
RE: Asphaltic Overlay
RE: Asphaltic Overlay
RE: Asphaltic Overlay
RE: Asphaltic Overlay
BigH, just received the following...
The original product was identified as an emulsomastic, primarily a mix of cement, sand and an emulsifier. The cement and sand provided structure and the emulsion provide some flexibility. I believe it was a fairly common product after the 1st world war as the Armouries have lots of it.
The building was constructed around 1915.
Dik
RE: Asphaltic Overlay
But pay attention to fact that the asphalt does not react good to oil and DPK wich may be used in this type of fasility.
The compaction of small area should not be a problem, you can use hand compactor eg. boumag 900 or so, it will require large number of "passes" to get to required compaction.
RE: Asphaltic Overlay
But pay attention to fact that the asphalt does not react good to oil and DPK wich may be used in this type of fasility.
The compaction of small area should not be a problem, you can use hand compactor eg. boumag 900 or so, it will require large number of "passes" to get to required compaction.