Hanover® Asphalt block is a unique paving alternative which offers many distinctive advantages. Specialized methods of manufacturing enable the production of an extremely dense paver that has the ability to withstand "real world" conditions at their worst. Impressive test results prove that the product will withstand extreme weather fluctuations. Tests show Asphalt Block to be spark resistant and able to support heavy static loads. With a less than 1% water absorption rating, the product holds up with the application of rock salt or mineral oil. Projects which date back 100 years are still in use today!