Page 174 - 인천국제공항 4단계 건설사업 건설지 [화보집 영문]
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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          During the quarry development, there were concerns from   with additional measures implemented to address outdated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.




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