enter image description hereI have an outdoor patio in New Mexico bordered in bricks set in Mortar. These bricks were set 5 years ago.They get wet from the sprinklers. They are seperating from the concrete foundation. You can tap the bricks and the mortar falls off in big chunks leaving the brick clean of any mortar. I have a brick border that is 20 years old getting wet from the same sprinkler water and it is solid as can be. My contractor wants to charge me to re-do what i think was a bad martor mix. Does anyone have ideas as to what the problem may be beyond bad mix?
Yes you are right the mix was bad. That and the application was bad. Adhering cement to cement is much like welding iron to iron. If done correctly the joint is actually stronger than the material being joined. What most likely happened here was a combination of cheap mortar, poor mixing and improper application techniques.
You don't need a contractor to fix this if you have some spare time. If you don't have spare time I wouldn't even bother using the same contractor because she/he is obviously just going to do a poor job at fixing her/his mistake because she/he is not operating from first principles.