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geekhack Community => Off Topic => Topic started by: tp4tissue on Sat, 17 September 2016, 07:38:21

Title: Concrete Blocks.. Civil Engi-Halp
Post by: tp4tissue on Sat, 17 September 2016, 07:38:21
Emphasis on Flatness.. Need flatness

Buy premade and drill holes..

Vs....

DIY Cast



Thoughts?

Do ya'll think premade is cast more _flatly_ than DIY.. since they prolly got better molds?


Is it hard to drill concrete without cracking it ?..  does a cast hole work better/ more rigid-ly/ structurally sound than a drilled hole ?
Title: Re: Concrete Blocks.. Civil Engi-Halp
Post by: fohat.digs on Sat, 17 September 2016, 08:31:59
Not much to go on but drilling holes in masonry is no fun.

If you can get pavers in the right size and shape, and you only need a few small holes, drill.

If you know how to cast your own and need many, that will be easier.