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|국가/구분||United States(US) Patent 등록|
|발명자 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 1|
In a process for producing asphalt-aggregate composition in which used asphaltic concrete is recycled by being heated and mixed in a rotatable drum into which flame and hot gases of combustion are directed, the improvement comprises introducing virgin aggregate in a hot zone of the drum and directly exposing the aggregate to the flame and/or hot gases of combustion, and introducing particles of asphalt-aggregate composition downstream from the hot drum input end, away from direct exposure to the flame and extremely hot gases, in a cooler temperature zone...
Apparatus for heating and mixing asphalt-aggregate composition comprising (a) an elongated rotatable drum having an input end and an opposite output end, (b) means for supplying hot gases of combustion at said input end and for directing said hot gases substantially along the length of said drum between said input and said output ends whereby said composition is gradually heated therebetween, (c) first means for supplying aggregate particles into said drum at a hot zone whereby said aggregate is directly exposed to said hot gases, (d) second means for in...