Suzee7447, Shrinkage cracks occur because concrete crews add water to the mix at the jobsite. Get a copy of the batch ticket from the ready-mix company. this will provide the cement content(5 sack, 6 sack, etc.), slump, and it will note how much water was added at the jobsite. They note all this info because it is common for concrete people to blame the mix. Pool decks generally are poured with a 5 or 6 sack mix with about 4" of slump. Sometimes additives such as "air" are used to slow the set time. The batch mix my also vary if they are using a pump to install the concrete. Talk to your PB. If he is using a subcontractor for the deck, he can provide the necessary info. I'm not familiar with anything to cure cracks. I could make a million dollars with that product! Did you contract for a deck with a top coating or spray deck? This is the only instance I can think of that might mitigate shrinkage cracks. Good luck.

Judging by your picture,(tell me if im wrong), it looks as if that application is the scratch/ brown coat with no stucco top coat,(typically 1/4" thick). After the lathing/underlayment, a cementious based scratch coat is follwed by a brown coat of the same material that is brought out to a level to match up to the existing. The scratch/brown coat will crack normally and is important for it to sit for at least 3-4 weeks in most cases before the stucco color coat is applied. This allows the cracking, again normal, to happen as much as it can and wont follow through to the color coat. You can caulk with an elasomeric caulking after "v-grooving" out the cracks, but i would let it set for the 3-4 weeks and top coat with stucco mix top coating, then paint to match. Cracking can also occur due to a "too dry" mix drying out too fast,(hot weather), as well as improper install of the lath wire. If you go the top coat route, while waiting for the scratch/brown coat to "cure and crack", periodically a.m. & p.m wet the area down with water, Give it a good soaking with a garden hose.

I noticed a crack in the front corner of our (less than) 6 month Kohler Whitehaven sink. Immediately a pit in my stomach! This sink was installed on 11/14/22. We spent a pretty penny remodeling our very dated kitchen and are thrilled with how it looks. We contacted Kohler whowhichwhowhowhichwho said they will replace sink. We are waiting to talk to someone about cost associated with reinstalling a new sink to replace a defective sink. Ours is undermount and don't feel as though we should be on the hook for this expense. Anxious to hear back from Kohler. If their product wasn't defective we wouldn't be needing to discuss cost associated with this repair.

"The contractor will need to cut into the newly installed tile to install" Good luck with that. Clean cut? no damage to waterproofing? With planning like that one questions the integrity of the shower build.