Developing countries is the country which usually familiar as “the third countries” need
development in almost all sectors to get standard of living equal to the country that has
grown. The state of Indonesia is developed countries that are one of the characteristic is
executing development in various sectors. Growth in Indonesia construction and
infrastructure sector continue slowdown. This suggested that Many factors can cause delays
on such projects, the reasons for project delays were incomplete drawings, material
management problems, deficiencies in organisation. The one factor of this research is
material management. The goal of materials management is to insure that construction
materials are available at their point of use when needed. The materials management
system attempts to insure that the right quality and quantity of materials are appropriately
selected, purchased, delivered and handled on site in a timely manner and at a reasonable
cost.
PT. Pulau Biru Abadi is a company engaged in the service of the construction civilian and
procurement. Many big project that had been completed by PT Pulau Biru Abadi. Among
which are the development of government building and road construction. For any time in
road construction of their project often have delay cause inventory of asphalt is empty. This
case caused by they are not control the inventory of asphalt and the supply of asphal from
supplier is late because the distance from Surabaya to Manokwari. If the project have delay
so the company will pay the penalty around 5% from the project value. So the manager
ordering to find solution of this problem. So the company will avoid from losses and will
be minimized the cost. To find the solution the author used EOQ calculation to fin optimal
cost and using Reorder Point (ROP) Analysis to known when to ordering.