Abstract: A composition useful as an additive for asphalt mixes, such as stone matrix asphalt and porous asphalt, comprising the mineral porcelanite and either an activating agent or amorphous silica, and asphalt mixes comprising the composition. The asphalt mixes are stable and meet performance requirements according to national standards. The asphalt mixes require less bitumen than fiber-stabilized mixes, and can be mixed for less time at a lower temperature. The asphalt mixes comprising the inventive composition are thus more economical and environmentally friendly than existing asphalt mixes.

Abstract: A composition useful as an additive for asphalt mixes, such as stone matrix asphalt and porous asphalt, comprising the mineral porcelanite and either an activating agent or amorphous silica, and asphalt mixes comprising the composition. The asphalt mixes are stable and meet performance requirements according to national standards. The asphalt mixes require less bitumen than fiber-stabilized mixes, and can be mixed for less time at a lower temperature. The asphalt mixes comprising the inventive composition are thus more economical and environmentally friendly than existing asphalt mixes.

Abstract: The present invention relates to a fire and heat protection material of ablative type. According to the invention an organic binder is mixed with a filler consisting of hydrated aluminum sulfate of the general formula Al.sub.2 (SO.sub.4).sub.3 .n H.sub.2 O (wherein n=14-18) being present in amounts of more than 65% by wt of the mixture.The fire and heat protection material can be produced in the form of hard sheets, tapes, films, putties or paints, the time of heat protection being even more than 90 minutes.The material can be used for coating fuel tanks and particularly for protection of stationary stores of explosives and ammunition.