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 …

Learn simple DIY repair for concrete and asphalt cracks and stop them before they become more expensive issues. Find out how to apply concrete stain that complements and protects the integrity of …

Jan 16, 2026 · 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 …

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.

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 …

Concrete is an artificial construction material prepared by mixing a binding material (cement or lime), fine aggregate (sand), coarse aggregate (stone chips, brick chips, or gravel), and water in proper …

Police have no concrete evidence linking him to the crime. We have not yet received a concrete proposal. If a statement, argument, or discussion is concrete, it is based on actual things and …