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Permacast concrete fences and walls are made from a technique called precast. We use this technique because of its great efficiencies, qualities, and capabilities for beautiful aesthetics. The information below describes the basic concepts and techniques of precast and was provided to us by the National Precast Concrete Association
Precast concrete offers an almost endless variety of products and design options for both above ground and underground construction. From the largest infrastructure projects to the smallest architectural details, precast is one of the most versatile and sustainable building materials available for today’s fast-paced, environmentally conscious construction.
The strength of precast concrete will gradually increase over time. Other materials can deteriorate, lose strength and deflect over time. The load-carrying capacity of precast concrete is derived from its own structural qualities and does not rely on the strength or quality of the surrounding backfill materials.
Although precast concrete is quite heavy, nearly all other competing materials require machinery for handling and installation as well. Speed of installation is more dependent on excavation than product handling and placement. Unlike other materials, precast concrete does not require the use of special rigging (such as fabric slings) to avoid structural damage.
Precast’s superior strength means that installation is often easier, quicker and less costly. It also requires less ongoing maintenance and a reduced likelihood of future problems. That means a lower total cost over the life cycle of a project.
Precast concrete products arrive at the job site ready to install as does the Permacast concrete fence wall, which can save weeks over cast-in-place construction. Precast reduces the need for skilled labor on site and decreases the footprint. There is no need to order raw materials such as reinforcing steel and concrete, and no time wasted setting up forms, placing reinforcement, pouring concrete and waiting for concrete to cure.
Studies have shown that precast concrete products can provide a service life in excess of 100 years. For severe service conditions, additional design options are available which can extend the life of the precast concrete product. This is extremely important when calculating life-cycle costs for a project such as a concrete fence or concrete wall. Precast concrete also resists most substances. While no material is completely immune to attack from aggressive chemical agents, precast products can often be designed to resist corrosion in specific applications.
Because precast concrete products typically are produced in a controlled environment, they exhibit high quality and uniformity. Variables typically affecting quality on a job site – temperature, humidity, craftsmanship – are closely controlled in a plant environment.
Precast concrete products manufactured in a quality-controlled environment and used with high-quality sealants offer a superior solution to water tightness requirements. Standard watertight sealants are specially formulated to adhere to precast concrete, making watertight multiple-seam precast concrete structures possible.
Precast concrete products are both functional and decorative. They can be shaped and molded into an endless array of sizes and configurations. Precast concrete can also be produced in virtually any color and a wide variety of finishes (acid-etched, sandblasted, smooth-as-cast, exposed-aggregate) to achieve the desired appearance for building and site applications.
The Permacast precast concrete fence wall realizes all of these advantages and uses these techniques to produce the most efficient concrete fence wall on the market.