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[SEAOC] Durability of Lightweight concrete[Subject Prev][Subject Next][Thread Prev][Thread Next]
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- Subject: [SEAOC] Durability of Lightweight concrete
- From: "Estes, Kent R." <kent_estes(--nospam--at)wdi.disney.com>
- Date: Thu, 5 Sep 1996 15:56:24 -0700
I have a 30 year old lightweight concrete beamway in an amusement park that was never intended to bear direct vehicle traffic. The ride that has now been removed ran on a steel rail bolted to the beamway. The proposed vehicle will ride tires directly on the lightweight concrete. The question is, how durable is lightweight concrete to tire traffic? The prevailing wisdom from the literature that I have investigated (ACI, PCA, etc.) is muddled at best. When durability of lightweight concrete is discussed, resistance to freeze/thaw cycles is usually all that is addressed. At present, I have specified a cement-based overlay on the wear surface, but this is no small cost. Any thoughts out there on the durability of lightweight concrete to tire traffic? The vehicle is comparable to a car or truck. Is it a common practice for bridges that use lightweight concrete to use it for the wearing surface? Any good references that address this question? ...
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