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All Journal Science and Technology Indonesia IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Talenta Sipil

Arfan Hasan

Unknown Affiliation

Author-ID : 3234342

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Public Health

Published : 4 Documents Claim Missing Document

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Articles

Comparison Analysis of CBR Value Enhancement of Soil Type in Swamp Area by Addition of Fly Ash Indrayani Indrayani; Andi Herius; Arfan Hasan; Ahmad Mirza
Science and Technology Indonesia Vol. 3 No. 2 (2018): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Roads was built on swamp areas should be consider the condition of the base soil, since the characteristics of the soil in swamp areas have always inundated and have a low soil carrying capacity (Subagyo, 2006). One of effort that could be done to improve the existing soil condition was used fly ash as a material for soil stabilization (Indera et al, 2016; Mina et al, 2016). This study was conducted to analyze the enhancement of CBR value on various soil types in swamp area by the addition of fly ash. Testing on the values of index properties, compaction, and CBR values was done in laboratory base on ASTM and AASHTO standars. The test results show that the type of soil at the location of the sampling is silty or clay gravel and sand, clay soil, and silty soil. The reduction of optimum water content after the addition of fly ash is the highest decrease of 20.92%. While the highest increase of dry content weight after the addition of fly ash was 0.904 gr / cm3. An enhancement in the value of CBR by the addition of 20% fly ash in the study area, however the increase magnitude depends on the existing soil types, ie 7.99% in the silty or clay gravel and sand, 6 - 8% in the clay soil and 0,22 - 5% on silty soil. This indicates that the addition of fly ash was the optimum used on the type of clay soil.

Addition Effect of Petrasoil Additive Material on CBR Value of Soil in Swamp Areas Andi Herius; Indrayani Indrayani Indrayani; Arfan Hasan; Ahmad Mirza
Indonesian Journal of Environmental Management and Sustainability Vol. 3 No. 2 (2019): June
Publisher : Research Centre of Inorganic Materials and Complexs

Some road construction projects use petrasoil additive to increase soil stabilization, one of then is the Improvement of Tabarfane-Hokmar (Chemical Petrasoil) Road Project in Aru Selatan Timur District, Aru Islands. To obtain the influence of petrasoil aditive material as soil stabilization in swamp areas, a research is needed. petrasoil additives that powder shape are dissolved in water with 3 variations, namely 500 liters, 750 liters, and 1000 liters of water. Tests which carried out include compaction testing, index properties, and CBR. The results showed that the addition of petrasoil mixture with water without being combined with other added ingredients could lead to increasingly unstable soil conditions where the soil water content increased and the dry weight of the soil diminished, meaning that soil density decreases, and the CBR value of soil decreases.

The Effect of Addition on Pumice and Fiber on Compressive and Fluxural Strength Precast Lightweight Concrete: - Indrayani Indrayani; Andi Herius; Arfan Hasan; Ahmad Mirza
Science and Technology Indonesia Vol. 5 No. 1 (2020): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Most of the construction uses concrete as the main building material because concrete has many advantages compared to other materials. Concrete has a high enough weight, various attempts were made to reduce the weight of the concrete for example using lightweight aggregates or concrete made without sand or concrete made hollow Innovations in the development of precast lightweight concrete are urgently needed at this time to support the development of development that is being carried out by the government. From the studies that have been carried out on lightweight concrete and fiber concrete, this research will develop the results of previous studies, namely by combining lightweight concrete and fiber concrete to obtain precast lightweight concrete. This research was conducted to find out how much influence the use of pumice and and fiber on compressive strength and flexural strength of precast lightweight concrete. Variations in the addition of a mixture of pumice with aggregate are divided into 4 comparisons, namely 0: 100, 20: 80, 40: 60, 60: 40, where each mixture is added 0.1% fiber from the volume of concrete, then printed in cube and beam molds. Compressive tests were carried out on the cube and flexural tests were carried out on beams. From the test results was obtained that the addition of pumice to the concrete mixture can cause a decrease in compressive strength of the concrete from 202 kg/cm2 to 129 kg/cm2 whereas with the addition of fiber there is an increase in flexural strength is 24.48 kg/cm2. The specific gravity obtained is 1.664 gr/cm3 so this concrete can be classified into lightweight concrete.

Analisa Kesesuaian Lubang Resapan Biopori Sebagai Pengendali Aliran Permukaan Dari Lahan Non Gedung Kiki Rizky Amalia; Radius Pranoto; Arfan Hasan; Ananda Ayu Putri
Jurnal Talenta Sipil Vol 6, No 2 (2023): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v6i2.330

Indonesia has the potential for high rainfall with an average of 2000-3000 mm/year. However, the potential for rain often causes many problems, such as; runoff, inundation, erosion and flooding. Biopore infiltration holes are one of the rainwater conservation technologies that have been widely applied to reduce surface runoff and increase groundwater reserves. This study aims to analyze the suitability of biopore infiltration holes in controlling runoff from open land (non-building) in the State Polytechnic of Sriwijaya, Soil seepage ability was measured using a double ring infiltrometer and obtained a value of 0.869 m/day. Model of the biopore infiltration hole used is cylindrical, 10 cm in diameter and 0.5 - 1 m deep. Simulations were carried out per area using daily rainfall data for 12 years (2007-2018). The simulation results show that the biopore infiltration hole has a water absorption capacity of 0.00298 m3/day. The ratio of the average requirement for biopore holes for open land (non-building) is 1 biopore hole per 1 m2 land area.

Co-Authors Ahmad Mirza Ananda Ayu Putri Andi Herius Indrayani Indrayani Indrayani Indrayani Indrayani Kiki Rizky Amalia Radius Pranoto

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