Precast Reinforced Concrete Box Culvert Advantages
Precast reinforced concrete box culverts are one of most economic effective and multi-function precast concrete products in market today, meeting request of a lot of comprehensive construction projects. Flexibility in project design and convenience of installation results to cost savings in the overall.
The application for precast reinforced concrete box culverts are endless. They can be used for underpasses, service tunnels, subways, outfalls, bridges, stream culverts, material handling, utility storage, chimneys, vertical storage, watertight holding tanks and more.
Precast concrete culvert manufacturers offer a variety of standard box culverts as well custom designs. Additional features can be added by the producer to meet the exact needs of any project: toe walls, manhole openings, head walls, wing walls, pipe openings, Vbottoms, keyedends, slopedfaced ends and water tight joints. Optional exterior coatings can also be applied at the plant reducing on site construction. Precast concrete box culverts can be produced in any size limited only by transportation weight.
ASTM Specification C 1433, "Standard Specification for Manufacture of Precast Reinforced Concrete Box Culvert Sections for Culverts, Storm Drains and Sewers," specifies design and manufacturing requirements to promote quality and durability.
precast reinforced concrete box culverts have several advantages over competing materials.
High Strength and Durability
The strength of precast reinforced concrete box culverts gradually increases over time. Other materials can deteriorate, experience greater creep and stress relaxation, lose strength and/or deflect over time. The loadcarrying capacity of precast reinforced concrete is derived from its own structural qualities and does not rely on the strength or quality of the surrounding backfill materials. Properly designed precast reinforced concrete box culverts can easily support vehicular, aircraft and railway loads meeting AASHTO, FAA and AREMA specifications.
Because precast reinforced concrete products are produced in a controlled environment, they exhibit high quality and uniformity. Factors affecting quality typically found on a job site temperature, improper curing, poor craftsmanship and material quality are nearly eliminated in a plant environment. precast reinforced concrete products produced in a qualitycontrolled environment and installed with highquality sealants offer a superior solution to water tightness requirements. Standard watertight sealants are specially formulated to adhere to precast reinforced concrete, making watertight multipleseam precast reinforced concrete box culverts possible. Availability and ease of installation
Because precast reinforced concrete box culverts are manufactured well in advance of installation, they are ready for transportation to the job site at a moment's notice. They are quickly installed in a matter of hours using a crane and a small crew. Back filling can begin immediately rather than waiting several days or more for castinplace concrete to gain proper strength. Once back filled, road construction can begin, greatly reducing the deviation of any associated lanes and congestion in the surrounding communities.
Free Bad Weather Condition
precast reinforced concrete box culvert increases much efficiency because weather condition will not delay concrete culvert production process in the precast reinforced concrete culvert plant. In addition, weather conditions on site of installation do not significantly affect the project schedule. Conversely, forming and placing of concrete culvert for cast-inplace applications can be delayed significantly due to bad weather conditions.