How do you fill mortar between bricks?

Scoop a dollop of mortar onto a brick trowel or hawk, hold it up even with a bed joint, and push the mortar against the back of the joint with the tuck-pointing trowel. Eliminate voids with a few slicing passes of the trowel's edge, then add more mortar until the joint is filled.

How do you fix cracked mortar?

If the cracked mortar is harder, make a relief cut down the center of the mortar joint using the pointed edge of the chisel and then gently chip out the mortar (brick grout) that contacts the brick. If the removal work is going really slowly, use an angle grinder to make the relief cuts.

How do you repair concrete mortar?

Mix 1 part Portland cement with 3 parts masonry sand and add just enough water to make a mortar paste that holds its shape. With a mason's trowel, apply the mortar to the damage, roughly shaping it. Let the patch harden until it's firm enough to hold a thumbprint. Finish the Corner.

Anxin cellulose ether products in repair mortars can improve the following properties:

·Improved water retention

·Increased crack resistance and compressive strength

·Enhanced the strong adhesion of mortars.