I nede to know what is under cement, I found some fuzzy white hair underneath all the cement at my local city park where the cement was cracked. Please tell me what that was thank you:D

I think it is symthetic white fuzz/hair/fur. Used to soak water when raining

It may be some type of fiberglass mesh , helps concrete not crack, if your not using rebarr

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Originally Posted by glavine

it may be some type of fiberglass mesh , helps concrete not crack, if your not using rebarr

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I agree with this answer. It may be something just to help hold the concrete together.

It may be aebestos (I'm sorry I'm not sure of the correct spelling) but you better be careful with it, as aesbestos is highly toxic... they don't use it anymore, so it will probably depend on the age of the pavement surface.