In engineering construction, there is a crucial link, the use of steam generators for steam curing of precast concrete. Concrete steam generator is mainly suitable for high-speed railway, highway, bridge construction, concrete components, box beams, T-beams, continuous beams, U-beams and cast-in-place beams, cast-in-place or precast concrete maintenance operations for docks and sidewalks.
Temperature controlled curing after precast concrete curing package
In the context of construction implementation, steam curing has gradually been recognized in the construction of large-scale projects. In modern bridge construction, steam generators use steam to heat concrete, causing the concrete to harden quickly at higher temperatures (70~90°C) and higher humidity (about 90% or more).
Steam curing can effectively improve the quality of concrete box beams, shorten the construction period, and strictly ensure the quality of box beams. Nobeth steam generator is safe, environmentally friendly, easy to use, mobile, and fully automatic operation to achieve “unattended, automatic maintenance” ”, the major steam generator manufacturers on the market all regard concrete curing as one of their target markets, and there are many mature application cases.
Bridge precast maintenance
When using plastic film for curing, the exposed parts of the concrete should be covered tightly with plastic sheeting to ensure that there is condensation water in the plastic sheeting to achieve the purpose of moist curing. In water-scarce areas and tall buildings that are difficult to water and maintain, spray plastic film health care solution can be used for maintenance. Generally, 2 to 4 hours after the concrete is poured, when the bleeding water has just dispersed and there is no floating water, you can spray the thin film health solution when there are no fingerprints on the concrete. No one is allowed to walk on the concrete until its strength reaches 1.2MPa. Generally, steam curing at a temperature of about 65°C is recommended.
Whether steam curing of concrete is good or not? Generally speaking, concrete can quickly reach the required strength under conditions of higher temperature and humidity. Due to limited conditions at the construction site, cast-in-place prefabricated components can generally use temporary ground or underground maintenance pits, covered with a protective cover or simple canvas or tarpaulin. Concrete maintenance is an extremely important part of the concrete construction process and is directly related to the construction quality of the entire project.
Post time: Nov-03-2023
