ABSTRACT Delco Citra Arengka Housing in Pekanbaru is one of the areas affected by waterlogging during high-intensity rainfall, indicating that the existing drainage system is not functioning optimally. This study aims to redesign the drainage system by comparing two approaches: the empirical method and simulation using EPA SWMM software. The empirical method was used to calculate the design di…
ABSTRACT This study aims to develop an empirical equation to predict the California Bearing Ratio (CBR) based on the results of the TVA Penetrometer (Hand Cone Penetrometer) test on soft soils, particularly in coastal areas. Soil samples were prepared by mixing bentonite clay, kaolin, and sand, then compacted and tested in the laboratory to obtain CBR values and QcTVA readings. Stepwise re…
ABSTRACT In geotechnical engineering, professional actions and expert judgment are often essential in soil investigation methods. In coastal areas, expansive soils with sandy sedimentation lead to reduced bearing capacity and challenges in field instrumentation. This study models a clayey sand (SC) mixture using Bentonite and Kaolin as fine fractions, which exhibit expansive behavior and p…
ABSTRACT PCI and PCU type girders have similarities in the economic span range, which is 25–40 meters, as stated in the Practical Guidelines for Bridge Technical Planning (2021). This study aims to compare the use of PCI and PCU girders on the Siak Bridge sta. 195+500 Trans Sumatra Toll Road Rengat-Pekanbaru section Lingkar Pekanbaru. The comparison is made based on the parameters of pre…
ABSTRACT This study aims to determine the population projection and the amount of clean water needs in Tenayan Raya District for 2025-2040, using a method in the form of data analysis. The methods used in calculating the population are arithmetic, geometric, and exponential methods to project the population, as well as standard deviation analysis to determine the most appropriate method. The r…
ABSTRACT In the construction of the Trans-Sumatra Toll Road, Rengat–Pekanbaru Section, specifically at the Pekanbaru Ring Road segment Sta. 193, two identical bridges are planned to employ prestressed concrete box girder structures. The construction of these bridges adopts the balanced cantilever method. Implementation of the balanced cantilever technique requires optimization through cr…
ABSTRACT The curve at Km 50 of the Pekanbaru-Bangkinang Highway is classified as a sharp and closely spaced compound curve and is identified as an accident-prone area, marked by accident-prone zone signs on one direction of the curve. Based on traffic accident data from 2019-2024, five accidents have occurred at this location. Noncompliance of the geometric design with current standards is…
ABSTRACT The curve at Km 50 of the Pekanbaru-Bangkinang Highway is classified as a sharp and closely spaced compound curve and is identified as an accident-prone area, marked by accident-prone zone signs on one direction of the curve. Based on traffic accident data from 2019-2024, five accidents have occurred at this location. Noncompliance of the geometric design with current standards is…
ABSTRACT Concentrically Braced Frame (CBF) is one of the commonly used seismic-resisting systems because it can effectively resist lateral forces. However, this system has a weakness, which is the risk of buckling under compressive forces that can reduce the structural capacity. Buckling Restrained Braced Frame (BRBF) is a development of CBF with restrainers that prevent buckling. This fin…
ABSTRACT The use of environmentally friendly materials in construction is an important consideration in efforts to reduce waste, particularly plastic waste that is difficult to decompose. This study aims to investigate the effect of using LDPE (Low Density Polyethylene) plastic waste on the characteristics of paving blocks, particularly in terms of compressive strength and water absorption…
ABSTRACT Tenayan Industrial Estate has various anthropogenic activities such as industrial and population activities, many activities can affect the amount of pollutants in the air, one of which is microplastics. Microplastics can be distributed through the air due to the influence of meteorological factors. This study aims to analyze the abundance of microplastic particles in the air arou…
ABSTRACT Chromium Hexavalent (Cr(VI)) is a type of waste that is carcinogenic and persistent in the environment. One method that can be used to remove Cr(VI) metal is the biosorption method, which utilizes microalgae immobilized with sodium alginate to achieve a stable structure. This study aims to obtain optimum conditions and empirical models for Cr(VI) removal and optical density using …
ABSTRACT Methylene blue synthetic dye is carcinogenic, toxic, and flammable so it needs to be processed before being discharged into the environment. In this study, methylene blue was processed by biosorption method using immobilized Chlorella sp. microalgae (Immobilized Microalgae Beads / IMB). This study aims to obtain the optimum variables and empirical model of IMB in the removal of me…
ABSTRACT Ammonia in wastewater can harm aquatic environments due to its toxicity, with LC50 values of 0.56–2.36 ppm for fish and 1.10–22.8 ppm for invertebrates within 24–96 hours of exposure. It contributes to eutrophication, microbial death, and reduced dissolved oxygen levels. Conventional are still limited, especially under high ammonia concentrations. Therefore, this study appli…
ABSTRACT Phenol is a toxic aromatic compound commonly found in industrial wastewater and has the potential to pollute aquatic environments. Treating phenol poses a challenge due to its resistance to biological degradation, high solubility in water, and its carcinogenic and bioaccumulative nature. Therefore, an effective and environmentally friendly treatment method is required. . One of th…
ABSTRACT Wastewater often contains pollutants such as ammonia, which can disrupt ecological balance. This study aimed to determine the optimum conditions, develop an empirical model, and characterize Immobilized Microalgal–Bacterial Beads (IMBB) for ammonia removal using Response Surface Methodology (RSM). The IMBB were formed by immobilizing microalgae Chlorella sp. and bacteria Nitros…
ABSTRACT The rise in traffic density in urban regions presents a threat of microplastic emission into the atmosphere. Road dust now contains microplastics, which are plastic particles that range in size from 0.001 to 5 mm. Due to their little weight and ease of airborne suspension, these particles have the potential to lower air quality and endanger human health. This study is to examine t…
ABSTRACT PKS. X in Tapung is one of the strategic business units in supporting the production of crude palm oil (CPO). One of its main operational units is the engine room station equipped with a Genset, Back Pressure Vessel (BPV), Turbine, and Main Panel. This unit produces noise levels that exceed the Threshold Limit Value (NAB) of 85 dB(A), thus risking hearing loss in workers. This stu…
ABSTRACT The management of cooperation activities at the Faculty of Engineering, Riau University was previously carried out using Google Spreadsheet or conventionally. In the process of collecting and distributing documents and document templates, it is still done using the WhatsApp application so that this process takes time and documents cannot always be obtained quickly. In addition, monito…
ABSTRACT This study aims to develop a Riau cultural literacy module for elementary school students' narrative text writing skills that is valid, practical, and feasible to use. The method used in this study is Research and Development (R&D) with a 4D development model, which includes four stages: Define (needs analysis), Design (design), Development (development), and Disseminate (dissemin…