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Securing materials: procurement of key
materials such as ready-mixed and asphalt
concrete
For large-scale civil engineering projects, securing essential
materials like ready-mixed concrete, asphalt concrete, and
aggregates was crucial. IIAC decided to use mixtures of
23 standard ready-mixed concrete and 11 standard asphalt
concrete, tailored to the airport's unique requirements, and
signed total procurement contracts. Additionally, it took on
the development of a quarry to secure aggregates. The quarry
development at the Sammik 1-do area provided the required closely managed contractors’ construction schedule and PC
aggregates, with long-term plans to convert the site into a flat transportation plans into its optimal PC production plan. For
logistics complex for the airport. In August 2019, 2 Crushing this, meetings were held more than once a week to adjust
Plants (CP) were installed, followed by the expansion of 2 production and transportation plans, and the manufacturing
Asphalt Plants (AP) for high-quality pavement in April 2020. site, which had been in use for 20 years, was renovated,
During the quarry development, there were concerns from with additional measures implemented to address outdated
residents, but after gathering feedback through dozens of equipment. To establish a safe production environment, the
discussions, a mutual agreement was reached in May 2019. company requested the Korea Elevator Safety Agency to
However, to efficiently manage ready-mixed concrete and conduct safety inspections on 9 cranes. For smooth rebar
asphalt pouring processes, a new pouring planning function supply management, rebars were secured proactively through
was introduced into the i-PMIS system, and resource advance payments. Furthermore, regular crane inspections
management was strengthened from annual planning to and component replacements were carried out to ensure a
quarterly, monthly, and weekly levels. To completely safe manufacturing environment. Additional safety monitors
prevent construction defects, dedicated construction project were assigned to the site to strengthen safety management.
management personnel were assigned, ensuring on-site Through this collaborative system and proactive material
quality control. management, PC drainage structures required for runway
For the successful construction of Runway 4, special construction were delivered on time. The in-advance
attention was also given to the production and supply maintenance and repair of production equipment also
management of precast (PC) drainage structures. IIAC ensured zero accidents throughout the project.
172 The 30-year History of Incheon Airport Construction 173