ABSTRACT Delima Street is two lanes without a median with a width of 6 m and a length of 1,700 m and connects Srikandi Street and H.R Soebrantas Street so it is classified as a collector's road, therefore many vehicles pass through this road. As a result of the large number of vehicles that pass through this road, this is one of the causes of certain damage to the road body. The purpose of thi…
ABSTRACT The intersection of Durian street - Serayu street located in Payung Sekaki District, Pekanbaru City is an unsignalized three-arm intersection and often experiences traffic jams. The purpouse of this study was to analysis the performance of the unsignalized intersection of Durian street - Serayu street. The method for calculating this unsignalized intersection is guided by the MKJI 199…
ABSTRACT Material strength becomes an important sight because it is needed in structural design planning. In general, the compressive strength of concrete is influenced by the composition of the concrete, but it turns out that it is not only influenced by the composition of the concrete, but also by the speed of loading. The effect of variations in axial loading speed on the compressive streng…
ABSTRACT Water is a basic need for life. River water is a source of raw water that needs to be processed so that the quality meets standards for use as sanitation or as drinking water. One alternative for water purification can be done using natural coagulants made from moringa seed powder. This study aims to study the effect of adding Moringa seed powder and the length of settling time in the…
ABSTRACT Kerosene is the fuel used in stoves, but the price of kerosene is very expensive. Based on the above, a mixture of used cooking oil with pertalite can be used as an alternative to kerosene fuel. This study aims to determine the effect of variations in the mixture between used cooking oil and pertalite (9:1, 8:2 and 5:5) on the color of the flame and the time needed to boil 1 liter of …
ABSTRACT The process of pyrolysis of plastic waste is a process of decomposing organic compounds contained in plastic through a heating process with little or no oxygen involved. In the pyrolysis process, long chain hydrocarbon compounds found in plastics are expected to be converted into shorter hydrocarbon compounds and can be used as alternative fuels. This study aims to process polypropyle…
ABSTRACT The process of pyrolysis of plastic waste is a process of decomposing organic compounds contained in plastic through a heating process with little or no oxygen involved. In the pyrolysis process, long chain hydrocarbon compounds found in plastics are expected to be converted into shorter hydrocarbon compounds and can be used as alternative fuels. This study aims to process polypropyle…
ABSTRACT The process of pyrolysis of plastic waste is a process of decomposing organic compounds contained in plastic through a heating process with little or no oxygen involved. In the pyrolysis process, long chain hydrocarbon compounds found in plastics are expected to be converted into shorter hydrocarbon compounds and can be used as alternative fuels. This study aims to process polypropyle…
ABSTRACT Spray hand sanitizer is a practical anti-germicidal spray preparation form in the form of an antiseptic liquid, its use by spraying it on the palms of the hands, then applying it evenly to the surface of the hands. The purpose of this study was to determine the functional groups of flavonoid compounds from pineapple peel viscous extract by performing FTIR spectroscopy testing and …
ABSTRACT Indonesia has many companies or home industries that process tea. This condition has the potential to produce solid waste in the form of tea waste in relatively large quantities. So far, tea waste is only fermented into fertilizer and the rest is simply thrown away, so further processing is needed to become a product that has economic value. Tea waste can be processed into environmenta…
ABSTRACT Indonesia has many companies or home industries that process tea. This condition has the potential to produce solid waste in the form of tea waste in relatively large quantities. So far, tea waste is only fermented into fertilizer and the rest is simply thrown away, so further processing is needed to become a product that has economic value. Tea waste can be processed into environmenta…
Due to the increasing demand for mono- and diglycerides (MDG) as emulsifier in food industries has led to further research on their kinetic studies in order to investigate for more efficient process prior to energy consumption as well as producing high conversion and MDG product purities. Conventional MDG production by glycerolysis of fatty acids can be carried out in the presence of homog…
ABSTRACT The Tapung Kanan Watershed is part of the Siak Watershed which is located in the Siak River Basin, which is one of the watersheds with critical conditions and requires priority handling. This is due to the uncontrolled use of water resources, causing the availability of water to tend to decrease and decreased water quality. As the effect of this problem, it is necessary to manage and …
ABSTRACT Water is the source of life for humans. Along with the increase in population, human activities have also increased and will require more water. This resulted in the use of water required costs in its management. The Pamsimas (Community-Based Drinking Water and Sanitation Provision) program is one of the water supply programs for drinking water customers in Talang Bersemi Village. KP-…
ABSTRACT The reservoir has a function as a place to accommodate excess water during the rainy season and will be used to meet water needs during the dry season. The water needs in question include raw water and irrigation water. The Kelarik Reservoir is located in North Kelarik Village, North Bunguran District, Natuna Regency, Riau Archipelago Province. The Kelarik Reservoir is used as an irri…
ABSTRACT Asphalt modification is one way to improve the performance of asphalt mixtures.The material for asphalt modification used can be natural substance such as concentrated latex. Concentrated latex is fresh latex that has been processed and its rubber content concentrated. This study uses concentrated latex as a modified material with the aim of knowing the effect of adding concentrated l…
ABSTRACT The availability of water is very influential for fulfill the basic needs of living things, which is water needs. The water needs of Rokan Kiri Watershed have continuesly increase along with the increase of population, meanwhile the water availability is relatively constant, moreover the quantity and the quality of water getting decrease, and causing various problems. The problems tha…
ABSTRACT Reservoir is a place on the ground surface that is used to store water when excess water occurs or during the rainy season so that the water can be used during the dry season. One of the reservoirs intended to accommodate or store excess water is the Selayar Reservoir located in Lingga District, Lingga Regency, Riau Islands, Indonesia. Utilization of the Selayar Reservoir is intended …
ABSTRACT The load flow study aims to determine, discover and expand the condition of an electrical system. This study conducted in West Area Kasikan for a new powerplant system in a form of gas engine powerplant (PLTMG) 1100 kW for total of 3 units, and additional 500 kW workload in Langgak’s Region which was executed through the Electrical Transient Analysis Program (ETAP) Power Stations 12…
ABSTRACT Currently the use of macro cells with relatively long wireless channels cannot support high bitrates. To overcome these weaknesses multiplying radio access points can be done using transmission media such as Fiber Optic or Free Space Optic. In this research, we analyse the performance of optical communication systems with QAM modulated RF signal input on Fiber Optic and Free Space Opt…