Re: Would you buy a house built on clay?


"Jo Schaper" <joschapern4ospam@xxxxxxxxxxxxxxxxx> skrev i en meddelelse
news:11g2csut8s00md9@xxxxxxxxxxxxxxxxxxxxx
> This is interesting. Over here, the problem is usually with expansive
> clays, not with shrinkage. Just how exactly do trees cause clay to shrink?

Trees use a lot of water. A forest on clay will keep the ground fairly dry,
but the ground will quickly grow soft and wet if sufficient trees fall.

The question at hand is difficult to comment on, becourse some clays are
stable enough to build on ... thinking about quartenary clayey tills...
Somewhat comparable to Huston there is a lot of (expandable) Late
Jurassic/Early Cretacious 'London-clay' underlying southern/eastern UK, but
how the factual circumstances will influence buildings will take closer
scruteny. As to 'the London-clay', London may be build on it, so a general
rule for the area has no value.

Carsten




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