Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), [1] the most widely used …

Dec 10, 2025 · Concrete, in construction, structural material consisting of a hard, chemically inert particulate substance, known as aggregate (usually sand and gravel), that is bonded together by …

In its simplest form, concrete is a mixture of paste and aggregates (sand & rock). The paste, composed of cement and water, coats the surface of the fine (sand) and coarse aggregates (rocks) and binds …

Concrete is made up of three basic components: water, aggregate (rock, sand, or gravel) and Portland cement. Cement, usually in powder form, acts as a binding agent when mixed with water and …

Jul 25, 2025 · Concrete is a mix of several different materials: water, fine aggregates (or sand), coarse aggregates (or gravel), chemical additives, and, most importantly, cement. Cement is what binds all …

Concrete structures boast some great qualities: In its most common form, concrete consists of aggregate (sand and stone), Portland cement, and water. The cement and water create a paste that …

Sep 26, 2024 · Concrete is a carefully balanced mixture of cement, water, sand, and admixtures, with lime in the form of hydrated lime or quicklime, sometimes added for enhanced properties.