Thank you all for your replies. Any suggestions as to what to repoint with and what sealant products containing silicone siloxane would be greatly appreciated. It looks like I have a big job ahead of me.
We have a brick on concrete front walk. The bricks were mortared onto the concrete and the joints had mortar brushed into them and sprayed with water. They have held up fairly well for many years . We did redo them once the same way and some of the large cracks were mortared by hand. Now many of...