Concrete strength: Normal concrete 7 day strength for culvert is at least 30 MPa, but in reality, it can reach 100
percent of the design grade at Concrete 620 – Dongtam factory after just 3 days. The final concrete strength is
around 35 MPa and can be transferred for installation at the construction sites.
Applicable standards: Concrete centrifugal culvert 620 – Dongtam Manufactured according to TCVN 9113 : 2012
or manufactured according to customer requirements.
Factory capacity: 500,000 md/year culvert production line.
World-class German and Korean technology