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Hakiman Hakiman
Universitas Sulawesi Tenggara
Civil Engineering, Building, Construction & Architecture Transportation

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Study Of Concrete Mixture Using Sea Sand With Fresh Water and Sea Water Cure Febriansyah Arsyad; Irwan Lakawa; Vickky Anggara Ilham; Hakiman Hakiman
Sultra Civil Engineering Journal Vol 4 No 1 (2023): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v4i1.459

Abstract

The purpose of this study was to (1) analyze the characteristics of fresh concrete mixed with sea sand (2) to analyze the compressive strength of sea sand concrete with fresh water and sea water curing. In this study, the specimens used were 21 cylinders with a job mix design plan of f'c 25 MPa with a curing duration of 7 days, 14 days, and 28 days. At the age of 7 and 14 days the compressive strength of fresh water curing was 30.29 MPa and 33.12 MPa higher than seawater curing 29.02 MPa and 32.13 MPa, while at 28 days the compressive strength of seawater curing was 37. 08 MPa compared to fresh water curing of 33.97 MPa. Sea sand concrete has a very good quality compared to normal concrete and sea sand can be used in construction projects by taking into account the specifications in accordance with the Indonesian National Standard (SNI).
Analisis Perbandingan Upah Harian dengan Borongan (Studi Kasus Proyek Peningkatan Kualitas Permukiman Kumuh Desa Lagasa) Lisman Lisman; Sufrianto Sufrianto; Hakiman Hakiman; Vickky Anggara Ilham
Sultra Civil Engineering Journal Vol 4 No 2 (2023): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v4i2.528

Abstract

There are several types of wage systems in a construction project, including a time-based wage system, namely providing wages based on time for work that has been carried out by craftsmen, such as daily work. There is also a piece rate wage system, which provides wages directly based on the amount of workmanship produced by the craftsman. Contractors must be careful in providing wages to workers, so that the work is in accordance with the planned time, whether the contractor benefits or not. If the work time is less or even ineffective for the journeyman, then it is certain that the contractor will suffer losses because the resulting productivity is small. Based on the analysis for the productivity of daily workers and piece workers, the productivity of piece workers is greater than that of daily workers in the work of Improving the Quality of Lagasa Village Slum Settlements. For piece work on taluds for area A it is 62.47 m3/day, while daily work on taluds for area A is 7,809 m3/day, for work on drainage for area B it is 78.15 m^1/day while daily work on drainage for area B is 9, 77 m^1/day and for wholesale block paving work in area C it is 526.65 m^2/day while daily block paving work in area C is 65.83083 m^2/day
Analisis Pemilihan Moda Transportasi Angkutan Umum Di Kota Kendari Maisara Maisara; Hakiman Hakiman; hujiyanto hujiyanto; Fikri Aris Munandar
Sultra Civil Engineering Journal Vol 4 No 2 (2023): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v4i2.529

Abstract

This study aims to determine the characteristics of travelers who use modes of transportation and find out how big the probability by choosing one of transportation mode is in Kendari City. The result show that the characteristics of mode selection based on the reasons that influenced the choice of mode from a total of 73 respondents were as follows, the travelers chose faster time considerations by 48% or as many as 35 people, the travelers who chose security considerations by 11% or as many as 8 people, the travelers who chose convenience considerations by 19% or as many as 14 people, and travelers who chose price considerations by 22% or as many as 22 people. The probability of users of transportation modes in Kendari City shows that people are more likely to use online modes of transportation 51% compared to using public transportation modes of 49%
Analisis Kelayakan Kualitas Material Batu Pecah Dan Pasir Asal Kelurahan Wandoka Kecamatan Wangi-Wangi Kabupaten Wakatobi Sebagai Bahan Konstruksi Gedung Muhammad Muhsar; Sufrianto Sufrianto; Hakiman Hakiman; Hado Hado
Sultra Civil Engineering Journal Vol 5 No 1 (2024): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v5i1.592

Abstract

Concrete is a construction material consisting of cement, fine aggregate, coarse aggregate which is mixed and added with sufficient water to form a dough which then hardens into hard concrete. This study aims to determine technical feasibility, the cost and the difference to the unit price based on the 2021 Regent's Regulation and to analyze the unit cost of construction of local Wakatobi materials and materials outside Wakatobi based on Analisa Harga Satuan Pekerjaan (AHSP). The method used in this study to determine the compressive strength of concrete refers to SNI 1974; 2011 and carried out observations and measurements in the laboratory with 60 specimens in the form of a cylinder with a diameter of 10 cm and a height of 20 cm with a concrete age of 28 days for each mixture variation. The results of the study obtained the compressive strength of aggregate variations on 100% Moramo coarse aggregate on crushed stone and sand with several variations. Comparison of the unit price of the Wakatobi local fine aggregate material with the outer Wakatobi fine aggregate material is 32.40% higher, the Wakatobi local coarse aggregate material unit price and the outer Wakatobi coarse aggregate material unit price is 52.17% higher. The construction unit cost for making 1 m3 of concrete using local Wakatobi materials is Rp. 1,916,756, and the construction unit cost for making 1m3 of concrete using non-wakatobi materials is Rp. 2,678,889. With a large construction unit, making 1m3 of concrete using external Wakatobi materials is 28.45% higher.
Co-Authors Febriansyah Arsyad Fikri Aris Munandar Hado Hado hujiyanto hujiyanto Irwan Lakawa Lisman Lisman Maisara Maisara Muhammad Muhsar Sufrianto, Sufrianto Vickky Anggara Ilham