Concrete reasons: most common building material a better choice.

• Author: Moore, Charles

DUE TO ITS ECONOMICAL cost, concrete is the most commonly used construction material in the world. In fact, commercial builders have long used concrete wall systems for fast, cost-effective erection of buildings. Precast concrete components will not corrode or rust and require little maintenance to retain their durability. No painting is needed to protect a structure built with precast concrete, nor is it necessary to apply any other protective coatings.

Most of these advantages are due to the natural characteristics of concrete, which is exceptionally strong. While its inherent durability is irrefutable, builders are increasingly choosing precast concrete for an entirely different reason: the significant life safety advantage it provides over conventional masonry, steel, wood frame or block designs.

Doesn't burn. A balanced approach to fire safety and protection relies on three key elements: fire detection, fire suppression and fire containment. The first two elements involve the use of active fire-protection systems such as smoke detectors, fire alarms and automatic sprinkler systems. While fire detection and fire suppression are both critically important, they rely on mechanical devices, which can and do periodically fail. As such, a reliable fire-safety strategy also incorporates the third protection element--fire containment--which includes fire barriers, firewalls and exterior walls built of noncombustible fire resistant materials. Materials like precast concrete do not burn, nor do they contribute to the production of lethal smoke and gasses. More importantly, its effectiveness is not diminished by mechanical malfunction, neglect or sabotage.

An all-precast concrete structure--including precast columns, beams, hollowcore planks and panels--provides an exceptionally safe and secure envelope. In a...