a petrol leak will 'eat' its way through a 75mm thick tarmac driveway; a screwdriver or stiletto heel will easily penetrate the previously 'set' surfacing and before long, the now unbound aggregate will begin to be scattered everywhere. And once a hole appears in a tarmacadam surface, it ...
My 3 ½-year-old stamped concrete driveway is scaling and much of the design is flaking off. How do I identify the cause for this? I live in eastern Pennsylvania, and we've had typical winter weather. Answer: Surface failure of concrete is usually caused by one of two reasons: The ...
PURPOSE: A construction method for a synthetic resinous boundary block filled up with concrete is provided to prevent the transformation and breakdown of a... HO Soon,HO LEE SOON 被引量: 0发表: 2002年 STREET DRAIN BLOCK FOR CARRIAGEWAY-FOOTWAY BOUNDARY PROBLEM TO BE SOLVED: To provide a stre...