Concrete Paving Blocks

• Cement content: 10 to 15%
• Aggregates and pebbles: 60 to 75%
• Water: 15 to 20 percent
• Entrained air: 5 to 8 percent.

Read more: http://www.brighthub.com/engineering/civil/articles/46645.aspx#ixzz1QW4MI6Ej

sorry i should have explained my self better i am in construction trade already but we are going to make some paving block which are pressed but the samples we have had and broke them up the quarries i been to can not tell what type of stone or mix is in the paver so im looking for some advice here anybody know thanks

"...make some paving block which are pressed but the samples ..."

Shaun, is this what you need the 8,000 psi for? Can you tell us, all at once, what you are doing? Then we may be better able to help you. Why are you pressing these paver stones?

http://www.youtube.com/watch?v=FW-O5PlwAxI have a look here basic idea of making paver the reason i was told they have to pressed is for driving on so they are strong the mix im trying to find out what sizes of chip to use

Yikes!

Are you going to be the guy with his head inside the press? Yeesh!

That is a vibrating compactor, combined with a press. I would assume there is a heat cycle (a kiln) somewhere right after forming. I would assume there is a proprietary material mix and production cycle that these people have found successful.

What is going on... did you break some of these, and now you are trying to make some so you don't have to buy them?

no just got 10000 to make ten thousands got the time need to make the machine

Let's assume that the pavers are 12x12 8x8 inches. That's 1 square foot 64 in². You have 4,000# of force/weight to use. How hard do you want to press?

Shoulda read the other one first.

Look here.

Doorman,

This validates my PM.

I agree... the response "no just got 10000 to make ten thousands got the time need to make the machine" makes no sense to me.

Just got: 10,000 pavers? $10,000.00 US dollars?

...to make ten thousands: ten thousands what?

ten thousand pavers to make