3/4" gravel, 10 - 15 mil plastic, sand, rebar, and concrete.

>>2973609
Low porosity

>>2973621
>10 - 15 mil plastic
Under rated concrete additive
Cost fuck all per mixer load
Easy to work the concrete after pour

>>2973650
>Under rated concrete additive
You mean using an aditive to make the mortar less permeable?

there are only six types total? isn't gravel just pulverized whatever kinda rock is around

>>2973659
I was recommend it as light reinforcement for driveway slab. It's fibreous throughout the mix and helps it hold together and reduces cracks in future as the concrete contracts more evenly as it cures. I found you could move and place it easier than a mix without. Can confirm it's tougher to get through with a concrete blade but slow abs steady still wins the race
To make it less permeable you need to coat on a sealant, I'll be looking at using siloxene but you can't get acrylic based sealants

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Granite would be the best from your list because it is the hardest and most non porous of the stones. If you were going to build a foundation out of that today I'd use type S mortar and make sure to use a bitumen or rubber or some kind of water proofing on the exterior to keep out water and chlorides. I have an old house with a 250yr stone foundation made of field stone, some of it granite. Standing very well today.

>>2973714
>fibreous
You're talking about adding glass fiber to the mortar, is that it?
10-15 mil plastic means something different
Are you having a stroke?

>>2973609
It depends on what you mean by best. One hundred years ago, they used whatever was available locally.

>>2973854
https://www.concrete.org.uk/fingertips/polypropylene-micro-fibres/
No I'm talking about these, usually about 10-15mm long
So, WTF are you talking about?

>>2973805
>Granite would be the best from your list because it is the hardest and most non porous of the stones.
Correct. Much of Aberdeen is built on granite, earning it the name Granite City. Just make sure to have sufficient ventilation as the granite is radioactive and Granite City has a major cancer problem that the government is suppressing.

>>2973854
>adding glass fiber
Glass fiber can be too smooth. Try basalt fiber instead.

Netherite

>>2974043
The other anon was talking about 15 mil plastic, not 15 mm long plastic fibers. I think

>>2973609
Sandstone for landscaping shit if it's locally available, nothing else unless you live in a desert with 0% humidity
Granite for structural parts - Footers, water tables, foundations, stoneblock walls.
Limestone for facing, features, and carvings
Quartzite for countertops
Slate for tiles of either the floor or roof variety
Gravel for the 8 billion different uses gravel has

>List of types
>blue
>green
>red
>white
>matte
That's how retarded your list is.