Pekanbaru - Bangkinang Toll Road is part of the Trans Sumatra Toll Road based on Presidential Regulation Number 117 of 2015. Where based on information from the Service Provider and Service User experiencing delays in completion. The purpose of this case study is to identify and analyze the risk factors causing delays with a probabilistic approach and lean sigma method. The research method…
This study aims to analyze the condition and performance index of breakwater structures on Bengkalis Island based on the Guidelines of the Ministerial Circular Letter of the Ministry of Public Works No. 1/SE/M/2011, as well as to analyze the priority scale for handling the breakwater structures on Bengkalis Island. The research was conducted through direct field assessment. The physical co…
This study analyzes the comparison of infiltration areas in the Siak River Basin based on the Ministry of Public Works and Public Housing Regulation Number 10/PRT/M/2015 and the Ministry of Environment and Forestry Regulation Number 10 of 2022, utilizing Geographic Information Systems (GIS). The objectives are to identify the distribution and classification variations of water catchment areas a…
In embankment construction activities, the selection and use of materials are crucial aspects that must meet various technical requirements to ensure the quality and safety of the constructed embankment. One of the key parameters often used as a reference in determining the quality of soil embankment construction is the California Bearing Ratio (CBR) value. The objective of this study is to eva…
Development and research related to the utilization of biomass is currently motivated by the depletion of the main fuel source reserves derived from fossils. The limited fossil energy sources lead to the need for renewable energy development and energy conservation called green energy development. Biomass utilization is one of the strategic issues in renewable energy development. In Indonesia, …
ABSTRACT Stand-alone solar power plants experience output instability due to fluctuations in solar radiation. To overcome this, an energy storage system is needed. Batteries, as the main energy storage device, have large capacity but limitations in power density and charging/discharging rates. Meanwhile, supercapacitors have high power density and fast response but are limited in maintaining p…
ABSTRACT Cracks can occur in mortar during the construction service life, potentially reducing the overall mechanical performance of construction components. Selfhealing mortar is a material innovation that is able to repair cracks by the material itself without requiring additional treatment. The self-healing process can be optimized by adding certain materials that function as self-heali…
ABSTRACT Fine cracks in mortar accelerate deterioration as harmful agents such as sulfuric acid can penetrate and damage the cement paste, thereby reducing the material's durability. Selfhealing mortar is one of the potential solutions to extend service life through a continuous repair mechanism, particularly in sulfuric acid environments. Several types of materials that can function as se…
Premature damage to flexible pavements in Indonesia is generally caused by overloading, poor construction quality, and suboptimal design. One critical point of damage occurs in road widening projects, particularly at the interface between old and new structures, which is vulnerable to material fatigue and deformation due to repeated deflections. This study was conducted on the BTS Kampar Regenc…
ABSTRACT Cracks in mortar are inevitable during the construction service period, thereby reducing the durability of the mortar. Self-healing methods are used to repair cracks independently, either with natural or artificial additives or from environmentally friendly waste. Additives or healing agents that can be used to aid the self-healing mechanism include eggshell ash waste and silica f…
ABSTRACT Cracks in mortar accelerate damage because they facilitate the entry of aggressive substances such as sulfuric acid, which can damage the cement paste. Damage to the cement paste reduces the strength of the mortar. Self-healing mortar is one solution because it can repair cracks independently. Self-healing can be supported by environmentally friendly additives, such as eggshell as…
ABSTRACT Mortar is an important construction material consisting of a mixture of fine aggregate, Portland cement, and water. Mortar functions as a coating for walls, brick adhesive, and others. However, the use of cement in mortar often causes cracks in these elements. Cracks occur due to variations in temperature changes, loading, and uneven shrinkage. This study uses a solution to overco…
ABSTRACT Cracks during the service period can cause a decrease in the durability of the mortar. One innovative solution for handling cracks in mortar is self healing, which is the ability of mortar to heal its cracks by utilizing certain materials such as mineral additives and pozzolan. This study aims to examine the effect of adding pineapple leaf fibers and silica fume as cement substitu…
ABSTRACT The use of information technology in education plays an important role in improving the effectiveness and efficiency of administrative processes, including teacher attendance systems. SD Swasta Global Andalan still uses a manual attendance system with conventional attendance sheets, which causes various issues such as data manipulation risks, document loss, and difficulties for teache…
ABSTRACT Javanese are one of the largest ethnic groups in Indonesia, accounting for 41% of the total population. They are known for their highly varied culture, encompassing everything from food and music to everyday life, including family Relationships. The Javanese also have unique rules for determining family Relationships. However, over time, these cultural values have been abandoned from …
ABSTRACT Network quality is a crucial factor in supporting the performance of face recognition–based attendance systems, which require real-time data transmission. Rumah Makan Taragung Pekanbaru has implemented this system; however, no prior analysis has been conducted regarding the quality of the network based on the placement of Access Points (AP). This study aims to analyze the Qualit…
ABSTRACT The use of biodiesel fuel blends is increasingly being developed as an effort to reduce dependence on fossil fuels and reduce exhaust emissions. One potential blend is B40, which is a mixture of 40% biodiesel and 60% diesel fuel. This study aims to analyze the effect of fuel injection temperature variations on Indicated Mean Effective Pressure (IMEP), power, and torque in B40-fueled d…
ABSTRACT The availability of petroleum is currently decreasing due to increasing demand. Therefore, other alternatives are needed to reduce dependence on petroleum. One concrete step taken by the government is the implementation of the B40 biodiesel mixture. The use of B40 requires adjustments to conventional engines, especially diesel engines. This is due to differences in fuel combustion c…
ABSTRACT Medical waste incineration in hospitals may release microplastic particles into the atmosphere. Microplastics are plastic particles ranging from 1 μm to 5 mm in size, characterized by their light weight, ease of dispersion, and potential risks to human health and the environment. This study aimed to analyze the abundance, types, and polymer composition of airborne microplastics a…
ABSTRACT Siak River water has a high natural organic matter (NOM) content, which has the potential to form disinfection by-products in the form of trihalomethanes (THM) when it reacts with chlorine. THM are carcinogenic and have fatal impact on human health, so treatment is necessary before disinfection. This study aims to calculate the efficiency of organic and color removal in Siak R…