ã€China Aluminum Industry Network】 (1) The suitable hardening temperature is about 15°C. In general, the ambient temperature during construction must not exceed 25°C. Otherwise, crystal transformation will occur and the strength will decrease. Concrete made of high alumina cement cannot be steam cured.
Heavy Duty Caster , as a professional chinese caster manufacturer ,with rich R&D experience , which enable us to customize according to client's request ,
Size of thread stem , wheel material , type of brake , just let me know what you want , Rich Industrial Caster series , various from rigid wheel caster , Swivel Caster and Brake Caster , full size series make us become one-stop caster services center for you .
Heavy Duty Casters,Heavy Brake Caster,Heavy Duty Pu Caster,Heavy Duty Ball Caster Zhejiang Lingda Caster Co., Ltd , https://www.ldcaster.com
(2) It is strictly forbidden that high-alumina cement is mixed with Portland cement or lime, and it must not be in contact with Portland cement concrete that has not been hardened. Otherwise, instantaneous condensation will occur, and construction will fail, and the strength will be low.
(3) The long-term strength of high-alumina cement has a tendency to decrease due to crystal transformation and aging of aluminate gels. If it is required to be used in a project, the design should be based on a lower stable strength. The value is determined by tests according to GB201-2000.