Engineering Journal: Volume-8, Issue-12, December, 2022

Abstract— The aim of the study was to determine the use of the Additive Normen Tamcem 8R on the compressive strength of concrete and to determine the percentage of the compressive strength of concrete in normal concrete and in concrete with the Additive Normen Tamcem 8R.
This research was conducted from March to June 2020 at the Laboratory of the Faculty of Engineering, University of 17 August 1945 Samarinda.
The stages of the research are as follows: literature study, preparation, taking samples or test materials in the field, preparing for laboratory testing, making mix designs, making concrete mixes, slump testing, making test materials, treating test objects, compressive strength testing, analysis, and reporting.
The results showed that (1) the average compressive strength of normal concrete was 275.99 kg/cm2 and the compressive strength of mixed concrete was 285.80 kg/cm2 and (2) the percentage ratio of compressive strength of concrete under normal conditions and the use of additive norms Tamcem 8R 400 ml is as big as 1.76%. .

Abstract— This study aims to get an overview of the impact of traffic caused by the construction of type B terminals in Paser Regency on existing conditions and construction period. Based on Law number 22 of 2009 article 99 paragraph 1, it is stated that "Any plan to build a center of activity, settlements, and infrastructure that will cause disturbances in security, safety, order, and smooth running of traffic and road transport must be carried out a traffic impact analysis". The results of the disclaimer on activities based on the Regulation of the Minister of Transportation No. 17 of 2021 are included in the category of moderate rise. The results of the analysis of the performance of 11 road sections show that the condition of the road service level in the existing condition is the same as the condition during the construction period, namely having an LOS value = A to C which means that there are no problems with the condition of the existing road sections, both in existing conditions and in construction conditions. Meanwhile, the results of the performance assessment at the intersection are 2 intersections, showing the existing conditions and construction period conditions of the LOS value of the intersection is B, which means that there is no disturbance in the existing intersection conditions. The recommendation of this study is that it is necessary to regulate the circulation and maneuvering of construction vehicles so as not to cause traffic disturbances on sections and intersections around the site of type B terminal construction activities in Paser Regency.

Abstract— Arrangements for routes and flight schedules are needed to provide effective and efficient services to passengers using air transportation services, especially in metropolitan areas with two or more airports. The concept is known as the Multi Airport System, which provides the following advantages: (1) reducing density at primary airports while increasing the capacity of regional air transportation systems. (2) Maintaining the quality of services, especially in primary airports, breaks down and reduces the effects of disruptions that may occur in airport operations. (3) Providing alternative travel options for people in the metropolis to minimize the distance and travel time to the airport. (4) Generating economic activities in the surrounding area, such as increased employment, tax revenue, attracting new companies, and others. (5) Reducing the impact of a service monopoly which could appear at any time in a single airport system. The research finds differences in flight frequencies between exiting conditions and simulation at SAMS airport of Sepinggan Balikpapan by using the Multiple Airport Demand Allocation Model (MADAM). In the existing conditions, it is found that there is 82 flights/day while the simulation results show 86 flights/day. There is an error of 4.9%, which means that the frequency of flights needs to be increased four times. Whereas at the APT airport. Pranoto, there is no difference between existing routes and schedules and the simulation results, which are 20 flights/day. It means that in terms of both the landside and airside, the capacity is optimum. Also, the simulation results of the movement of passengers to the APT. Pranoto Airport and SAMS. Sepinggan Airport Balikpapan shows the movement of 176 passengers from the APT. Pranoto Airport to SAMS Sepinggan Airport of Balikpapan. There are several passengers at APT. Pranoto cannot be transported according to route modeling and flight schedules due to the airport's overload capacity.