Mortar is a mixture of sand and cements that is most often used to build brick or block walls. 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.
Designed for use with water to produce high strength thixotropic mortar, for laying aerated light weight concrete, fly ash bricks, cement hollow blocks,
Concrete Patching Compound is a ready-to-use, trowel applied acrylic latex formulation for making repairs to cracks, holes and breaks up to 1/4" deep in concrete, stucco or masonry walls, sidewalks, patios, driveways, etc. Dries quickly to a durable and flexible finish.