[PSUBS-MAILIST] cutting pics

[David Colombo via Personal_Submersibles]

Hi Brian, are there any concerns about the voids in the cement when at
depth?

On Dec 12, 2017 1:41 PM, "Brian Cox via Personal_Submersibles" <
personal_submersibles at psubs.org> wrote:

> Here is the source of my pin hole leaks.   Some areas at the center where
> the rebar did not get completely filled with cement left a slight void.
> Most areas were good but where I had bolt holes going through the holes
> would intersect the void and give a path to air or water.  This is probably
> due to having the cement too dry when plastering.  It's a delicate
> balance , if the cement is too wet it won't adhere properly, too dry and
> you get voids like shown.  If I did it again I would blast the whole thing
> with a pressure cement sprayer , let that set up and then go back over it
> with regular plastering.    But for the most part I did get good
> penetration.
>
> Brian
>
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