What is a primary characteristic of grout?

A primary characteristic of grout is that it serves as a bonding agent in masonry. Grout is a fluid material typically used to fill gaps and spaces, particularly in tiling and masonry work. It is designed to improve the structural integrity of the masonry by adhering to the materials and filling the voids between them, thus enhancing stability and strength.

Grout often consists of a mixture of cement, water, and other additives. Its role as a bonding agent is essential in ensuring that the tiles or bricks remain securely in place, preventing movement that could lead to cracking or other structural issues. The effectiveness of grout as a bonding agent is why it's a crucial component in construction projects involving brickwork, concrete block, and tile installation. By creating a solid bond between different materials, grout not only holds the masonry units together but also provides a level surface and additional durability.