AG Mechanics CDE Practice Exam 2026 - Free AG Mechanics Practice Questions and Study Guide

When cement, sand, and gravel are mixed with water, the resulting mixture is known as concrete. Concrete is a strong and durable material commonly used in construction for sidewalks, buildings, bridges, and many other structures.

A brick is a solid block of hardened clay that is used in construction but it is not the correct term for the mixture of cement, sand, and gravel with water.

Mortar is a mixture of cement, sand, and water, but it usually does not contain gravel. Mortar is primarily used for holding bricks or other materials together in masonry work, rather than as a structural material like concrete.

Slurry is a more fluid mixture of water and solids, often used in drilling or various industrial processes, but it does not typically contain the specific combination of cement, sand, and gravel as concrete does.