Crushed Limestone: Why It Is Present In Everything

Posted on: 27 February 2018

As far as crushed stone products are concerned, the U.S. leads the way in crushed limestone. Limestone is extensively found in most parts of the U.S., but it is most easily mined in the northern half of the country, particularly in areas where the last major glacier covered the land and then receded north. Crushed limestone is present in practically everything around you, and here is why.

It Is the Go-to Product for Making Cement

Every concrete and cement contractor relies on limestone for making cement. The crushed limestone gives the cement a denser consistency than concrete, and the bits of limestone help the liquid parts hold together long enough to harden. Without the crushed limestone, there would be dozens of structures that would remain unbuilt, and most construction would not be possible.

It Is Very Common

Limestone is very common in the U.S. It is also easily mined and easily blasted from a quarry. It is so common, in fact, that many hundred-year-old homes utilize quarried blocks of limestone for the foundation. Rather than pour cement or concrete walls and a slab floor a century ago, people just bought tons of quarried limestone and had a mason rough-hew it into blocks. You can tell which homes around you have limestone foundations by how the block foundations look. 

It Is Very Durable

Limestone is very durable. It is a sedimentary rock that is extremely dense and quite heavy. Even if you pick up a piece of it in your hand, you can feel the weight of the rock. It is very telling as to how heavy a much larger chunk of limestone is. In fact, to turn large chunks of limestone into crushed stone, you need to place it into a machine that is designed to break up dense, heavy chunks of stone that refuse to yield to other means of breaking up rock.

To Get to Other Types of Rock, All the Limestone Has to Be Quarried First

If you want to get to other types of rock below the limestone, you have to quarry all of the limestone first. Limestone lays in layers over the top of all the layers that predate the coming of glaciers during the last ice age. The limestone layers were pushed up from the ground to lay as they are now. You cannot get through the limestone without blasting and hauling it away, and then you can expose types of striated rock underneath that may be even more valuable.


Getting Bids From Concrete Contractors

After we bought a home that had a large, completely unfinished RV pad, I realized that we needed to do something to fix it up. Instead of leaving it barren and ignoring the weeds, we decided to start getting bids from concrete contractors. We got bids from about ten different companies, and it was really great to hear what they could do for us. This blog is all about getting bids from contractors, knowing how to compare pricing, and avoiding issues with concrete. By taking a few extra steps, you might be able to completely avoid concrete problems and paying more than you should.