Infrastructure contruction has expanded in Penajam Paser Utara brought the effect of wall materials. Nowdays, Building construction with light brick preferably as an alternative than red brick it self. The aim of this research is to conduct SWOT Analysis between light brick and red brick in construction build in Penajam Paser Utara. According to question form that was spread in to local government has shown the results, The red brick sited in forth coordinate (quadrant) compare with light brick in second quadrant. This quadrant position provide using light bricks preferably were been selected than common red brick

The Balikpapan - Samarinda toll road is one part of the trans Kalimantan toll road that arrived currently under construction. The construction of this toll road uses rigid pavement. Road construction This toll road by the East Kalimantan Provincial Public Works Department requires a minimum flexural strength of 45 kg / cm� for 28 days of concrete age. The purpose of this study is to study flexural strength concrete on the rigid pavement of the Balikpapan-Samarinda toll road based on the planning of concrete mixes at field. This study uses experimental methods in the laboratory. Credit samples are made based on concrete mix planning in the field and testing in the laboratory. The sample as many as 24 pieces for a cylinder size of 15 x 30, and 12 pieces for blocks measuring 15 x 15 x 60, which will remain at the age of 7, 14, 21 and 28 days. The results of the strong test on the cylinder is obtained at 382 kg / cm2, 27% bigger than planning, and flexural strength in the beam of 53.48 kg / cm2, 18% greater than requirements. So it can be concluded that the pavement work is rigid on the Balikpapan-Samarinda toll road Has been in accordance with the provisions stipulated by the East Kalimantan Provincial Public Works Department.

Tolok ukur keberhasilan suatu proyek dapat dilihat dari waktu penyelesaian yang singkat dengan biaya yang minimal tanpa meninggalkan mutu hasil pekerjaan. Proyek Peningkatan Jalan Bina Bakti Kelurahan Gunung Seteleng Kabupaten Penajam Paser Utara dipilih sebagai objek penelitian dengan panjang jalan 569 Meter dan anggaran proyek senilai Rp.1.222.038.477,10 karena proyek ini mengalami keterlambatan. Salah satu upaya mengoptimalkan proyek yang sering digunakan adalah dengan metode TCTO (Time Cost Trade Off), Metode ini digunakan untuk menghitung perubahan waktu dan biaya pelaksanaan proyek paling optimum. Dengan menggunakan penambahan jam kerja lembur dan penambahan tenaga kerja. Waktu pelaksanaan proyek Peningkatan Jalan Bina Bakti selama 54 hari kalender. Berdasarkan hasil penelitian waktu dan biaya paling optimum setelah penambahan jam kerja lembur didapatkan total biaya optimum Rp.1.220.695.370,54 dan durasi crashing 42,4 hari dengan efisiensi biaya 0,11% dan efisiensi waktu 13,47%. Untuk penambahan tenaga kerja didapatkan waktu dan total biaya optimum  Rp.1.215.485.807,44 dan durasi crashing 37,8 hari dengan efisiensi biaya 0,54% dan efisiensi waktu 22,86%. Dari hasil penelitian ini didapatkan bahwa penambahan tenaga kerja lebih efisien dibandingkan dengan penambahan jam kerja lembur dan mendapatkan keuntungan biaya lebih besar.   Kata Kunci : Optimasi, Time Cost Trade Off, Penambahan Jam Kerja Lembur,  Penambahan tenaga kerja   The benchmark for the success of a project is seen from the short completion time with minimal costs without leaving the quality of the work. The Bina Bakti Road Improvement Project in Gunung Seteleng Subdistrict, Penajam Paser Utara Regency was chosen as the research object with a road length of 569 meters and the project budget valued at Rp.1,222,038,477.10 this project experienced a delay. Efforts to optimize one of the elements that will affect project control even two other elements, such as time, cost and resources. One of the optimal steps that is often used to overcome project delays is the method of TCTO (Time Cost Trade Off), this method is an attempt to exchange time and costs. This research calculates the most optimum change in time and cost of project implementation. By using additional hours of overtime and additional workforce. The time for implementing the Bina Bakti Road Improvement project for 54 days. Based on the results of the most optimum time and cost research after the addition of overtime working hours, the optimum total cost of Rp.1,220,695,370.54 and 42.4 days of crashing duration with cost efficiency 0.11% and time efficiency 13.47%. And for the addition of workforce, the optimum time and total cost of Rp.1,215,485,807.44 and the crashing duration of 37.8 days were obtained with cost efficiency of 0.54% and time efficiency of 22.86%. From the results of this study, it can be seen that the addition of labor is more efficient compared to the addition of overtime working hours and obtaining greater cost benefits.    Keywords: Optimization, Time Cost Trade Off, Addition of Overtime Working Hours, Addition Workforce

The problem of providing clean water is currently a special concern for developed countries and developing countries. Indonesia as a developing country cannot be separated from the problem of providing clean water for its people. One of the main problems faced is the lack of available sources of clean water, the uneven distribution of clean water services, especially in rural areas and existing clean water sources that have not been utilized optimally. This study aims to analyze the clean water needs of PDAM Samboja which uses 2 pumps in the next 10 years (2028). By using primary and secondary data obtained from PDAM Samboja and a number of related references, it was found that the IPA clean water needs of PDAM Tirta Mahakam Samboja with 2 pumps, in 2018 amounted to 2,599.5 m3/day. With the estimated results of the number of customers in the next 10 years (2028), the number of water requirements is 3,048 m3/day. Therefore it is necessary to add 1 pump to the PDAM Samboja IPA so that it can still serve the needs of customers in the next 10 years

One of the innovations in the use of glass waste in the construction sector is as a mixture of concrete brick. In this research glass dust from a building demolition in the Klandasan area of ??Balikpapan was used as a substitute for sand in a mixture of concrete brick. This research aims to analyze the use of glass powder as a substitute for sand in a mixture of concrete brick based on SNI 03-0349-1989. Concrete brick specimens are made with a cement and sand ratio of 1: 6. The variation in the replacement of glass powder used is 0%, 25%, and 50% of the composition of the sand. From the results of the analysis it was found that the water absorption capacity of the concrete brick with the addition of glass powder to the mixture of the concrete brick as a substitute for sand in the 0% concrete brick glass powder was 5.13% greater than the variation of 25% glass powder and 17.1% greater than the 50% variation of glass powder. The compressive strength of the concrete brick making with the addition of glass powder as a substitute for sand in the mixture of the concrete brick compressive strength of 25% glass powder is 11.11% better than oncrete brick 0% glass powder and compressive strength of the concrete brick 50% glass powder is better 33.33% than concrete brick 0% glass powder. Based on SNI 03-0349-1989, water absorption and compressive strength on concrete brick with the addition of glass powder as a substitute for sand still meet the requirements