Part I: Types of Cracks and Their Causes

[@mcrazyhorse19]

Excellent presentation, every builder should watch.

[@kometa0017]

I love this presentation. Great job, really professional. Thank you for shearing :)

[@ArthurDentZaphodBeeb]

Every contractor should watch these 'tapes'.

[@JohnBrown-nk4on]

good information. thanks for sharing the presentation.

[@rawaaalhilween8333]

great job plz we need more of these interesting topics

[@sajjadmanzoor6514]

nice lecture . i hope u will upload more of those

[@Dona-fu9zh]

It is wonder he didn't begin with ' Hi, I'm Rod Sterling, and I am here to present this weeks' edition of the Twilight Zone; Cracks and their Causes'.

[@Polecat54941]

Why didn't we have people like this teaching at schools!

[@ArthurDentZaphodBeeb]

We do. Harvey was a lecturer at Cal Berkeley

[@BuildingCivilVideo]

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