PT Semen Padang Research Articles

Pengaruh Total Quality Management (TQM), Motivasi Kerja, dan Komitmen Organisasi Terhadap Kinerja Manajerial

This study aims to determine the effect of Total Quality Management (TQM), work motivation, and organizational commitment on managerial performance at PT Semen Padang using a quantitative approach method. The population in the study were all managers and senior managers working at PT Semen Padang totaling 140 people. In this study, the sampling technique used the purposive sampling method. The sources in this study were employees who held managerial positions at PT Semen Padang. The data collection method that will be used in this study is a questionnaire. Data were processed using SPSS 25.0. The results of the study indicate that Total Quality Management and work motivation have a positive and significant effect on managerial performance, organizational commitment does not have a significant effect on managerial performance. Total quality management, work motivation and organizational commitment have a significant positive effect on managerial performance at PT Semen Padang.

Simulasi Metode Monte Carlo untuk Mengatur Sistem Antrian Truk

This research focuses on optimizing pozzolan truck queue management at PT. Danas Putra Mandiri through the application of the Monte Carlo method. The main objective of this research is to develop and implement a simulation application that is able to predict and calculate the average availability of trucks in a certain time unit, with the ultimate goal of increasing the company's operational efficiency. In industries that rely on the transportation of raw materials such as pozzolan, effective truck queue management is key to avoiding distribution delays and reducing operational costs. A queue is a service from one or more services that is caused by the need for services exceeding the capacity of the service or service facilities, so that customers who arrive cannot immediately receive service due to busyness in the service. The method used in this research is the Monte Carlo method. Monte Carlo is an experiment of various elements of probability using random samples. The Monte Carlo method is useful for solving quantitative problems with real or physical processing. This method has the ability to simulate and manage queues that occur in companies. PT Danas Putra Mandiri is one of the companies operating in the mining sector which supplies pozzolan to PT Semen Padang. The pozzolan delivery process uses trucks. The delivery process using trucks can affect the availability of the number of trucks in the company. The data used in this research is data from January 2023 - December 2023 with a total of 1619 data. Data taken through the admin of PT. DANAS PUTRA MANDIRI. Based on simulation predictions of queues on trucks, results were obtained with an average accuracy of 80.6%. The queuing simulation results show that the application of the Monte Carlo method can effectively reduce truck waiting times and increase the availability of trucks for rental, which ultimately contributes to increasing the company's operational efficiency.

PENERAPAN GREEN INDUSTRY DAN GREEN HUMAN RESOURCE MANAGEMENT TERHADAP KINERJA KARYAWAN

Green Industry and Green Human Resource Management are one of the sustainability methods implemented by a company. This research aims to analyze the extent to which the implementation of Green Industry and Green Human Resource Management can improve employee performance, both from the aspects of productivity and environmental sustainability. This type of research is quantitative. The population of this study was all employees of the HR & General Department at PT Semen Padang, totaling 38 people taken by total sampling. Data were processed using multiple linear regression using a questionnaire. The research results show that there is an influence between green industry (X1) on employee performance, there is an influence of green human resource management (X2) on employee performance and there is a relationship between green industry and green human resource management on the performance of PT Semen Padang employees.

Employee Performance Model Through Work Productivity: Work Professionalism and Training in PT Semen Padang

Employee Performance Model Through Work Productivity: Work Professionalism and Training in PT Semen Padang

Work Posture Analysis using the RULA and OWAS Methods in the Cement Packing Section at the Packing Plant Indarung Unit of PT. Semen Padang

PT Semen Padang is a cement manufacturer. According to preliminary observations, the cement packing process, which is done at the Packing Plant Indarung unit, is the last step of the cement production process. Due to the sideways and bowed body positions, cement bagging is performed manually with a less ergonomic working position. This is performed continuously, causing workers complaints of musculoskeletal disorders. The results of distributing the Nordic Body Map questionnaire to employees indicate that many operators experience pain due to their work positions. Based on these findings, the RULA method was used to analyze work posture, yielding a group A posture score of 7, a group B posture score of 4, and a final RULA assessment score of 7. The OWAS method assessment, meanwhile, earned a score code of 2141 and was categorized as a level 3 risk. The results of the risk assessment using the RULA method yield a score of 7, indicating that the operator's work attitude needs to change immediately, whereas the results of the assessment using the OWAS method yield a score of 3, indicating that work posture has a very significant impact on tension and needs to be corrected as soon as possible. On the basis of the results of these assessments, a recommendation was made to design a trolley work facility that can be utilized to reduce the risk of MSDs for cement packaging operators

Blasting Vibration Analysis with Micromate Tools: Experimental Study and Characterization at the PT Semen Padang Mine

This research investigates the impact of vibrations produced by blasting activities at the PT Semen Padang Mine, with a focus on vibration analysis and experimental characterization using the Micromate tool. The main objective of this research is to understand the vibrations resulting from blasting, analyze the impact of variations in PVS (Peak Vector Sum) values, and evaluate the effect on the surrounding environment, especially employee housing around the mining area. The research method used involves several important stages, first of which is the use of a Micromate tool to measure the vibrations produced during the blasting process. Micromate is a tool that can record and analyze vibrations with high accuracy, thus providing reliable data for further analysis. Apart from that, this research also uses power regression analysis to understand the relationship between PVS and Scaled Distance variables. This analysis is important to determine how variations in blasting distance and intensity affect the resulting PVS values. Then, a distance analysis was carried out to obtain a PVS value below 3 mm/s, which is considered a safe threshold to prevent structural damage to the building. The research results show several important findings. Even though the measured vibration values ​​are below the Threshold Values ​​set by environmental regulations, it is important to comply with all existing regulations to avoid long-term negative impacts. The power regression analysis carried out shows that there is a significant relationship between PVS and Scaled Distance, which means that the greater the distance between the blasting point and the measurement point, the smaller the PVS value detected. The validation results of this analysis are also in accordance with the empirical data collected during the research. In addition to these main findings, this research also provides several practical recommendations. One of them is setting the explosive charge to reduce the impact of the resulting ground vibrations. These arrangements include reducing the amount of explosive per blast or changing the blasting technique to reduce vibration intensity. In conclusion, this research provides an in-depth understanding of the factors that influence vibrations from blasting in a mining context. The results of this research have important implications for the development of more accurate and effective vibration measurement methods as well as for mitigating environmental impacts caused by blasting activities. This research not only provides new insights for the mining industry but also helps in formulating better policies to protect the environment and communities around mining areas. Thus, this research contributes to ongoing efforts to achieve a balance between industrial activities and environmental sustainability.

Descriptive Analysis of Media Relations Activities at PT Semen Padang

Public relations of PT Semen Padang build good relations with the media in the form of media relations activities. One of the objectives of this activity is to influence the media to be able to cover the news or provide positive coverage related to the company and the products offered. In 2023, it was noted that the percentage of positive and neutral news will be 100%. However, based on the results of news reports sent by media in collaboration with PT Semen Padang, it show that the reach of news coverage related to PT Semen Padang is still low. This study aims to answer the formulation of the main problem, namely how is the descriptive analysis of media relations activities at PT Semen Padang? These questions will be answered by analyzing data collected through observation, active participation, interviews, and literature studies.

Analisis Penerapan Sentralisasi Fungsi Akuntansi dan Keuangan dalam Perusahaan Holding: Studi Kasus PT Semen Indonesia (Persero) Tbk

PT Semen Indonesia (Persero) Tbk. (SIG) is one of the state-owned companies that since 2013 has transformed into a Strategic Holding. SIG has 17 Subsidiaries (AP), consisting of 8 Cement Making companies and 9 non Cement Making companies. Of the Cement Making Companies, 3 APs whose share ownership is 99.9% owned by SIG, namely PT Semen Padang, PT Semen Tonasa and PT Semen Gresik. This research was conducted at PT Semen Indonesia (Persero) Tbk. (SIG). The objectives of this study are (1) analyzing the implementation of Policies & SOPs at PT SIG, (2) Effectiveness of the implementation of centralization of Accounting & Finance functions at PT SIG. The basic method used is descriptive with the implementation of case studies. Data collection was carried out by interview, observation, Forum Group Discuss (FGD) and documentation methods. The results showed that the implementation of Holding Policies & SOPs in Subsidiaries (AP) has been implemented well based on periodic reviews and as an effort to create added value for the group, efficiency, and better performance of SOEs.

Pelaksanaan Tanggung Jawab Sosial Perusahaan Dalam Masa Pandemi COVID-19 Pada PT Semen Padang

Corporate Social Responsibility (CSR) has become an obligation for every company in the form of a Limited Liability Company which in the process uses Natural Resources in Indonesia, this is regulated in Article 74 of Law Number 40 of 2007 concerning Limited Liability Companies and Government Regulation Number 47 of 2012 concerning Social and Environmental Responsibility of Limited Liability Companies, but during the COVID-19 Pandemic with the existence of Large-Scale Social Restrictions (PSBB) for industries and offices referring to Article 4 of Government Regulation Number 21 of 2020, the implementation of CSR for PT Semen Padang was not carried out properly. Based on Presidential Instruction Number 4 of 2020 concerning Refocusing Activities, Budget Reallocation, and Procurement of Goods and Services in the Context of Accelerating the Handling of Corona Virus Disease 19 (COVID-19), states that the use of existing budgets for activities that accelerate the handling of COVID-19. This resulted in the planning of CSR activities in the Company's Activity Budget Plan (RKAP) which had been approved through the General Meeting of Shareholders (GMS) experiencing changes. Based on this, the problem formulation in this study explains how the Implementation of Corporate Social Responsibility Activities during the COVID-19 Pandemic at PT Semen Padang, as well as knowing what obstacles there are in its implementation. The research method used is empirical legal research. The implementation of PT Semen Padang's CSR activities during the COVID-19 Pandemic, which is guided by the Regulation of the Minister of State-Owned Enterprises of the Republic of Indonesia number PER-05 / MBU / 04/2021, focuses its activities on providing assistance to the community from previously more in carrying out community empowerment activities directly in the field, while the obstacles experienced come from the budget, PSBB regulations and community dependence

Short-Term Forecasting of Electricity Consumption Using Fuzzy Logic

The high demand for electricity in the production process at PT Semen Padang requires a system that can cope with various kinds of disturbances. The problem is that the need for electrical loads is dynamic, especially in the short term, allowing fluctuations between electrical loads at uncertain times. A short-term electric energy consumption forecasting method is needed to determine load growth and distributed power supply. This research aims to use a fuzzy logic algorithm to perform short-term electrical energy consumption forecasting and compare the forecasting results with the actual load at PT Semen Padang. The results showed that short-term load forecasting for seven days using the fuzzy Mamdani method, namely Smallest of Maximum (SoM), obtained a percentage MAPE value of 8.15%. Meanwhile, the Weight of Average (WoA) Sugeno defuzzification method gets a portion of the MAPE value of 9.51%. The Sugeno method is more accurate than the Mamdani method in short-term electricity load forecasting for PPI Indarung V PT Semen Padang. If based on the time category, then forecasting the electricity load on holidays is better than predicting on weekdays. However, when viewed in terms of per day, in Wednesday has the smallest average MAPE value of 5.05%.

Determinasi Kinerja Karyawan dan Produktivitas Kerja: Analisis Profesionalisme dan Pelatihan (Literature Review Manajemen Sumber Daya Manusia)

Previous or related research is essential to a research or academic dissertation. Previous or related studies can help strengthen theories and phenomena of the relationships or effects between variables. This article explains how to determine employee performance and employee work productivity in carrying out their work. Targeting professionalism and training with the targeted object are employees at PT Semen Padang (PERSERO) Tbk. The purpose of writing this article is to make a hypothesis about the influence between variables that will be used in further research. The results of this library survey are as follows: 1) Professionalism influences work productivity; 2) Training has an effect on employee performance; 3) Work productivity affects employee performance; 4) Training has an effect on work productivity; and 5) Work productivity affects employee performance.

Hazard Identification, Risk Assessment and Determining Control (HIRADC) in Mining Operations at PT Semen Padang

The mining industry has potential and hazard factors with high risks and are prone to accidents. Based on the records of work accidents that occurred at PT Semen Padang in 2022, 67% often occur in the mining operation unit. This study aims to identify hazard risks, analyze the severity of each risk and its risk category as well as risk control in the mining operational area of PT Semen Padang. This research is a qualitative research with a descriptive approach using risk analysis in the form of likelihood and consequences as well as risk matrix analysis. This method is a form of risk management process as an effort to prevent work accidents. Based on the research results, there are 30 types of hazard risks found in the mining operational area with a percentage of risk level, namely 67% low risk level, 27% medium risk level, and 6% high risk level.
 Industri pertambangan memiliki potensi dan faktor bahaya dengan risiko yang tinggi dan rentan terhadap kecelakaan. Berdasarkan rekaman kecelakaan kerja yang terjadi di PT Semen Padang pada tahun 2022, sebesar 67% sering terjadi di unit operasi tambang. Penelitian ini bertujuan untuk mengidentifikasi risiko bahaya, menganalisis tingkat keparahan setiap risiko dan kategori risikonya serta pengendalian risiko yang terdapat di area operasional tambang PT Semen Padang. Penelitian ini merupakan penelitian kualitatif pendekatan deskriptif menggunakan analisis risiko dalam bentuk kemungkinan dan konsekuensi serta analisis matriks risiko. Metode ini merupakan bentuk proses manajemen risiko sebagai upaya pencegahan kecelakaan kerja. Berdasarkan hasil penelitian terdapat 30 jenis risiko bahaya yang ditemukan di area operasional penambangan dengan persentase tingkat risiko yaitu 67% tingkat risiko rendah, 27% tingkat risiko sedang, dan 6% tingkat risiko tinggi.

Morphological and Stomata Characteristics of Trembesi (Samanea saman (Jacq.) Merr.) Leaves as Green Plants in Padang City, Indonesia

Greening along roads can be an alternative solution to overcome air pollution in urban areas. Direct contact of plants with pollutant particles in the air will affect the condition of plants, especially on leaves. Knowledge of morphological characteristics and stomata on leaves that have the potential to absorb pollutants is the basis for understanding plant responses to environmental changes. This research is descriptive research conducted in September-December 2021 with leaf samples taken in the area of ​​PT Semen Padang, Padang State University, and Andalas University forests. Data were analyzed by t test level of 5%. The results showed that the morphological characteristics of trembesi leaves in the PT Semen Padang and Padang State University areas had significant differences in the aspects of the number of leaflets, leaf length, leaf width, not significantly different in the length of the mother petiole and the number of leaf branch bones and the characteristics of the stomata did not show any difference which is evident from the aspect of stomata length and stomata density. The morphological characteristics of trembesi leaves in the Padang State University and Andalas University forests showed significant differences in the length of the mother petiole, the number of leaflets, and the number of leaf veins, there was no significant difference in leaf length and leaf width and showed a significant difference in the aspect of stomata length, but did not show a significant difference in terms of stomata density. Morphological characteristics of trembesi leaves in the PT Semen Padang area and Andalas University forest showed significant differences in the length of the mother petiole, number of leaflets, leaf length, leaf width, and number of leaf veins and did not show significant differences in terms of stomata length and stomata density.

Analisa Penerapan Sistem Enterprise Resource Planning dan Manajemen Rantai Pasokan Pada PT Semen Padang Dalam Meningkatkan Kinerja Perusahaan

This study aims to analyze the application of enterprise resource planning and supply chain management systems from PT Semen Padang in improving company performance. Analyzing the obstacles experienced by PT Semen Padang in implementing the ERP system in its business processes. The research method applied in this study is a qualitative method and Secondary Data Analysis (ADS), namely using and analyzing existing data without having to conduct surveys and interviews. The results obtained from this study are that there is an increase in the performance of the company's supply chain by implementing the Enterprise Resource Planning (ERP) system as evidenced by an increase in the amount of cement production in the following year.

Identification of Hazardous and Toxic Waste Characterization in the Mining Activities of PT Semen Padang

Mining business activities in addition to producing mineral and coal production, also produce solid and liquid hazardous and toxic waste materials that have the potential to pollute the environment and can reduce the quality of human health and other living things mining. PT Semen Padang as the holder of a Production Operation Mining Business Permit (IUP OP), in addition to producing mining commodities in the form of limestone, silica, and clay, also has the potential to produce hazardous and toxic waste materials from mining activities, especially from the results of activities in mining workshops, both solid waste and liquid waste. For this reason, it is necessary to properly manage hazardous and toxic waste materials. PT Semen Padang has now carried out hazardous and toxic waste disposal by temporarily storing the hazardous and toxic waste it produces which is stored in a temporary storage area for hazardous and toxic waste materials.

Analysis of Exhaust Gas Heat Utilization in Waste Heat Recovery Power Generator at Indarung V Factory PT Semen Padang

Increasing energy efficiency in the cement production process at PT Semen Padang is carried out by reusing exhaust gas to produce electricity using Waste heat recovery power generation (WHRPG) with a capacity of 8.5 MW. WHRPG is a technology for utilizing exhaust gas heat as a source of heat energy to heat feed water into steam by using a suspension preheater (SP) boiler and air quenching cooler (AQC) boiler. This study aims to calculate the power potential of the steam heat influenced by the steam temperature and the mass flow rate of the steam produced by the boiler, to calculate the efficiency of the boiler using the direct method by comparing the boiler output heat against the boiler input heat, to calculate the turbine efficiency based on the difference between the steam enthalpy enter the turbine against the steam enthalpy out of the turbine and the isotropic enthalpy of the steam out of the turbine and to calculate the power generated by WHRPG at PT Semen Padang. The results obtained in this study are the total potential power of steam heat is 19.778 MW, the boiler AQC efficiency is 70.30%, the boiler SP efficiency is 94.04% and the turbine efficiency is 78.64%. The electricity generated by PT Semen Padang's WHRPG is 3.70 MW.

Preface

On behalf of the organizing committee, I would like to welcome all of you to the 2nd International Conference on Mining and Environmental Technology (ICMET) that will be held from 18th to 19th of August 2022. We also have the post conference activities on 20th of August.The mining issues emerge and influence not only the human life but also the environment, on the other side technology plays a significant role to minimize the impacts of mining activities. The synergizing between those aspects would lead to social license to operate and good mining practices application. These two main goals have motivated the researchers and relevant actors to engage themselves with continuous discussion on mining, environment and technology. This is timely placed with the theme of our conference ‘Good Mining Practices and Its Application’. It is hoped that the conference will lead to cross fertilization of ideas and act as a catalyst for collaborations at both the national and international levels.I am pleased to inform you that there will be 33 papers presented across plenary session and three parallel sessions using offline and online methods. Paper presenters are from Australia, Malaysia, Vietnam, Turkey, and Indonesia. We have very diverse presenter from Indonesia represents Consultant, Universities and Mining Companies. I would like to convey my deepest gratitude to the keynote speakers: Professor Irwandy Arif from Ministry of Energy and Mineral Resources Republic of Indonesia, A/Prof. Kathryn Sturnman from The University of Queensland Australia, A/Prof. Lim Jeng Shiun from Universiti Teknologi Malaysia, A/Prof. Phung Kim Le from Ho Chi Minh University of Technology Vietnam, and Mr. Hazqil Arafi from PT Amman Mineral Nusa Tenggara. I also take this opportunity to thank our sponsors namely Ministry of Education and Culture Republic of Indonesia, PT Amman Mineral Nusa Tenggara, PT Major Drilling Indonesia, PT Dahana, and PT Semen Padang for their great support. In addition, my special appreciation goes to government of west nusa tenggara that providing us with the Welcoming Dinner tonight.Lastly, I hope the conference will bring a new exciting experience, provide a good platform to make friends, networks and learn from each other. I hope your stay in Lombok will be enjoyable and a memorable one. Thank you.With best wishes, Joni Safaat Adiansyah, Ph.D Organizing Committee ChairmanList of Conference Committees are available in this Pdf.

Failure Analysis of Induced Draft Fan Bearing in PT Semen Padang Using The RCM Method

The development of the technology is getting trigger competition in industri. To compete, companies should can provide products and the quality of services best for consumer. This study aims to find out the causes of bearings that are damaged in the Induced Draft Fan (IDF Bearing) and how to plan strategic maintenance of IDF Bearing. The method used is reliability centered maintenance (RCM). The causes of bearing damage are analyzed using the Failure Mode Effect and Critical Analysis (FMECA) method. The results of this study show that the cause of IDF Bearing damage is clearance with an RPN value of 210, lubrication system with an RPN value of 36, unbalance with an RPN value of 72, and high temperature with an RPN value of 54. Scheduled Restoration Maintenance is applied for IDF Bearing , where task or preventive maintenance in the form of oil change with a time of 5803.2 hours or 241 days.

The potential utilization of solid waste as alternative fuel in cement industry (case study of PT Semen Padang)

To reduce fossil fuel usage and promote eco-friendly energy, PT Semen Padang uses Alternative Fuels (AF) instead of coal. This study focuses on projecting the use of solid waste as AF from 2023-2030. It compares the waste's calorific value and proximate analysis with standards, calculates its potential use based on the Thermal Substitution Rate (TSR), and plans the necessary equipment. The tested waste includes Spent Bleaching Earth (SBE), rice husk, calliandra, palm fiber, and sawdust. The AF's characterization follows ASTM D 2015 for calorific value and ASTM 3172-3175 for proximate analysis. Results are compared to the RDF Specification Guidelines of 2017. The largest volume of waste used as AF is SBE (35,060 tons/year), while the smallest is 397 tons/year in stage III (2029-2030). Rice husk, calliandra, and sawdust meet the standards for AF in cement production. SBE doesn't meet the calorific value and ash content standard, and palm fiber doesn't meet the moisture content standard. The potential use of solid waste as AF reaches PT Semen Padang's target of 5.792% from 2023-2027. The necessary equipment for waste utilization as AF includes a shredder, dryer, mixing machine, and pyrolysis reactor.

ANALYSIS OF SOCIAL RESPONSIBILITY IMPLEMENTATION OF PT SEMEN PADANG BASED ON THE LEVEL OF COMMUNITY SATISFACTION WITH THE CORPORATE IMAGE IN PADANG CITY

The beginning of the formation of social responsibility or better known as Corporate Social Responsibility (CSR) is the provision of assistance to local organizations and lower-class communities in developing countries from companies operating in the vicinity. This study is intended to analyze the relationship between CSR Implementation on Community Satisfaction and Corporate Image. This research will use quantitative methods. Based on the research objectives, it was made to analyze the Implementation of PT Semen Padang's Social Responsibility based on the Level of Public Satisfaction with the Company's Image in the City of Padang. The number of samples in this study were 130 samples. The results of this study are the implementation of CSR has an effect on the level of community satisfaction. The implementation of CSR has an effect on corporate image, the level of community satisfaction has an effect on corporate image. The implementation of CSR affects the Company's Image through Community Satisfaction.