Luang Prabang Hydropower Project Construction (Reinforced and Concrete work scheduled to begin in January 2023)

CH. Karnchang has established a maximum allowable loss rate for reinforcing steel at not more than 4% and concrete at no more than 3%. Materials, including concrete and reinforcing steel, are subject to strict quality control and closely monitored. Clear quality standards are set, and monthly inspections for reinforcing steel are conducted to track actual usage. According to the Luang Prabang Hydropower Project Project Monthly Material Control Sheet, it was found that

• Reinforcement Steel (Rebar): Implementation commenced in January 2023. Monthly loss rates have consistently remained within the target threshold, not exceeding 4%. The highest cumulative loss was recorded in October 2025 at 2.09%, which warrants further review to ensure losses continue to stay within acceptable limits.
• Concrete: The monthly loss rate is recorded to compare actual usage with the calculated design quantity. In October 2025, the cumulative loss rate reached 1.88%, which requires further review to ensure that losses remain within acceptable limits for the remaining process.