What is a filler product with high water content?

Grout is a filler product characterized by its high water content, which makes it particularly effective for filling gaps and voids, as well as for securing tiles and stones in place. The primary composition of grout typically involves a mixture of water, cement, and sometimes sand, which contributes to its fluidity and enables it to easily flow into joints and crevices. The high water content facilitates the grout's application, allowing it to be poured or spread smoothly between tiles, offering a solid bond once cured.

In contrast, concrete is a composite material that combines cement, water, aggregates (like sand and gravel), and is designed to be much denser and stronger for structural applications. Mortar, while also made from a mix of sand, water, and cement, typically contains less water than grout and is used primarily for bonding masonry units like bricks or blocks rather than filling gaps. Cement itself is a dry powder that, when mixed with water, forms a paste that binds aggregates together but does not serve as a filler product by itself. Thus, the unique properties of grout make it the correct answer for a filler product with high water content.