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Some masons will absolutely swear that you must use portland/lime while others insist masonry cement is the way to go. The good thing is that it doesn’t matter. There are some parts of the country where masonry cement is simply not available and you will only get portland/lime mortar. If you go to the store and buy a bag of mortar you will not be able to tell which method was used to make the masonry cement. Masonry cement is simply a material made by most cement companies where they intergrind the portland with lime or other ingredients designed to produce high air content in a kiln.

The newer method is to use masonry cement and fine sand. The older method is to take portland cement, add hydrated lime and mix with fine sand. The point of this long-winded analogy is to let you know that using concrete and mortar interchangeably will lead to disaster. Both achieve the desired result of earning you a point. Then think of mortar as a very gently placed lob close to the net that gets your opponent leaning the wrong way with no chance of returning the ball.

If you play tennis, think of concrete as your most powerful serve when you are trying to smash the ball into or through your opponent so that they can’t return the serve. It is much creamier and more workable than concrete. Its strengths are quite low compared to concrete and it is never used in thick applications. Like concrete, mortar is also designed to be durable, but achieves its goal through finesse. If portland cement concrete is one of the most widely used building products in the world, masonry mortar is close behind. What is the difference between mortar and cement? While that may sound like the same recipe used to make concrete, there are some intentional differences between the formulations for mortar and cement, which is why the materials should not be used interchangeably. Mortar is a mixture of sand and cements that is most often used to build brick or block walls.

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Pro Tip The Difference Between Mortar and Cement