Jerusalem limestone coping? Is it a bad idea?

 
Do you have a spec sheet for the stone?

The point of referencing the other post was to point out that there are different qualities of stone and that a really good stone can hold up where a cheap stone will fall apart.

You need to have the stone supplier provide a document with the specs of the stone so that you can evaluate the stone on objective facts.

For example, this stone looks like it is really good if the numbers are accurate.

Density: 2684 kg/m3, 150 lbs/ft3 (approx. 13.33 ft3 / ton)
Absorption: 0.50 (per cent in 24 hours)
Compressive Strength: 341 MPa (49,458 psi).
Crushing Strength: 49,373 PSI
Traverse: 10.01 MPa
Strength: 1455 PSI


1701446951285.png

1701447181524.png
 

ASTM International (formerly the American Society for Testing and Materials) classifies limestone in three categories:​

Class I (Light Duty): Soft limestone best used for dimensional pieces and carving. Most buildings in Paris use these types of stone.

Class II (Medium Duty): These stones can be used in thin cladding and residential flooring as well as bath applications.

Class III (Heavy Duty): The French call these limestones “Pierres Marbrières,” or literally, marble-like limestones. Comparable in hardness and porosity to harder marbles, these stones can be used in heavy commercial traffic applications and countertops.

A good example of how the correct stone was chosen for the corresponding building application is Le Louvre in Paris. While the original building was built with soft limestone, Saint Maximim, the new interior extension is cladded in a medium duty stone, Magny Doré. Also, the new interior flooring is a heavy duty limestone from the Chassagne quarry in France and able to withstand the foot traffic of 8 million visitors a year.

 
One of the problems with natural materials is that they are easy to fake because most people cannot tell the difference.

For example, maybe the realtor tells you that the stone in the house is Calacatta or Carrara marble.

Unless you are an expert, you will probably never know that it is just typical plain marble.


Also, just because a product is well known for being great, the product might be average with a really good marketing department.

Is Carrara marble really worth the premium over other no-name marble or does it just have a bunch of hype?

For any stone that has a name, you have to be extra careful to deal with a reputable seller.

You also have to get the actual specs to verify which type of stone quality the stone really is.

However, you cannot always be sure that the spec sheet actually goes with the stone that is actually delivered unless you have your own expert check the stone and even quality test it.
 
There are many types of limestone from many different regions and quarries.

Even a region will have different types of stone from the region.

So, Jerusalem stone might be one of 10 different types of stones.

You should always try to get as much detail as possible about the stone like which quarry it came from, what the test specifications are etc.

What exact type and classification the stone is.





Stone sellers always have certain stones that they want to get rid of and they typically sell them to the people who do not know better.
 
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.