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still not worth a popcorn fart,,, widen the crack so its uniform, insert closed cell backer rod, & seal w/polyurethane (sl1) in the masonary section of your favorite apron/vest store,,, will work fine UNLESS your asphalt's new in which case the oils haven't yet outgassed,,, on highways, they'd use mtl conforming to astm 1190 OR astm 3405 for flexible pvmnts ( asphalt cement concrete [ black top to you & me ] ) but, when i left the field, they'd started using dow 890sl
 
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