
Concrete, one of the most widely used building materials in the world, is made up from the combination of readily available basic materials including cement, water, rock (coarse aggregate), sand (fine aggregate), admixtures, and in some cases, fibers or other additions. The proper proportioning of these components is an art based on fundamental materials science whether it is concrete for the construction of a residential pool or mass concrete for a dam.
CA is a leader in the use of supplementary cementitious materials such as fly ash, a by-product of the combustion of coal, granulated blast furnace slag, and silica fume on the production of high quality, high performance, and environmentally friendly concrete. CA has been involved in projects for the development and use of innovative concrete technologies for LEED ® Green Building, self-consolidating, architectural concrete, pervious concrete, lightweight concrete, and sustainable concrete using innovative blends of materials.
Structural steel, wood, masonry, fiber composites, polymers, and solid waste by-products are also among the building materials' in the construction industry for which CA has offered expertise. CA’s understanding of these materials’ properties has contributed to the design, analysis, implementation, and modeling of durable structures. Over a wide range of projects, CA’s experience has proven excellence and exemplary performance.