scholarly journals Impact Of Moisture Conditions On Early Shrinkage Of Ordinary Concrete With Changing W/C Ratio

2014 ◽  
Vol 60 (2) ◽  
pp. 241-256 ◽  
Author(s):  
Józef Jasiczak ◽  
Paweł Szymański ◽  
Piotr Nowotarski

AbstractArticle presents the results of the effect of humidity on early shrinkage of normal concrete with variable W/C ratio. As known for a long time, shrinkage is dependent of many factors. One of them is the W/C ratio and the quantity of water which is located in the concrete mix. In article there were discussed changes taking place in the concrete mix, the methods of research and the partial results obtained by the authors of the paper. Shrinkage is a phenomenon well known and studied by various research centers. The total amount of shrinkage may depend on various factors such as humidity, temperature, composition of the concrete mix, the W/C ratio, the size of the item. The study was conducted to determine the amount of shrinkage in its early stages. It is very important for concrete floors contractors, precast manufacturers to start at the right time finishing work and prevent the formation of shrinkage cracks.

Sensi Journal ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 236-246
Author(s):  
Ilamsyah Ilamsyah ◽  
Yulianto Yulianto ◽  
Tri Vita Febriani

The right and appropriate system of receiving and transferring goods is needed by the company. In the process of receiving and transferring goods from the central warehouse to the branch warehouse at PDAM Tirta Kerta Raharja, Tangerang Regency, which is currently done manually is still ineffective and inaccurate because the Head of Subdivision uses receipt documents, namely PPBP and mutation of goods, namely MPPW in the form of paper as a submission media. The Head of Subdivision enters the data of receipt and mutation of goods manually and requires a relatively long time because at the time of demand for the transfer of goods the Head of Subdivision must check the inventory of goods in the central warehouse first. Therefore, it is necessary to hold a design of information systems for the receipt and transfer of goods from the central warehouse to a web-based branch warehouse that is already database so that it is more effective, efficient and accurate. With the web-based system of receiving and transferring goods that are already datatabed, it can facilitate the Head of Subdivision in inputing data on the receipt and transfer of goods and control of stock inventory so that the Sub Head of Subdivision can do it periodically to make it more effective, efficient and accurate. The method of data collection is done by observing, interviewing and studying literature from various previous studies, while the system analysis method uses the Waterfall method which aims to solve a problem and uses design methods with visual modeling that is object oriented with UML while programming using PHP and MySQL as a database.


2012 ◽  
Vol 253-255 ◽  
pp. 456-461
Author(s):  
Yan Fu Qin ◽  
Bin Tian ◽  
Gang Xu ◽  
Xiao Chun Lu

Frost resistance research is one of the important subject of concrete durability, however strength criteria is an important part of the study of mechanical behavior of concrete. So far, about concrete failure criteria are almost for normal concrete, which the domestic and overseas scholars have comparative detailed research in every respect to it, and to freeze-thaw damage of concrete but few research. Based on the summary of the existing ordinary concrete strength and failure criteria in normal state and after freeze-thaw damage,this paper have a brief comment of failure criteria on concrete after freeze-thaw damage. For later research about concrete strength and failure criteria under freezing and thawing cycle provide the reference.


2021 ◽  
Vol 10 (1) ◽  
pp. 194
Author(s):  
Maria Maria

This research examines the development of traditional culinary culture,  Bakpia and Wingko Babat XYZ with the aim of preserving the local culinary heritage located in Bantul. Bakpia and Wingko Babat XYZ  is a special traditional business place that sells traditional Yogyakarta food in the Bantul area which still uses traditional methods. This business has been around for a long time since 1997. Lack of the right strategy is the cause when local and foreign visitors do not know much information about the culinary business of Bakpia and Wingko Babat XYZ. Based on this, this study aims to identify and analyze the marketing process carried out by Bakpia and Wingko Babat XYZ, to determine the potential of traditional culinary culture and to explore strategy formulations in Bakpia and Wingko Babat XYZ. The research method in this study is a qualitative research method, by conducting direct and in-depth interviews with key persons, observation, and literature study. The qualitative method used is descriptive qualitative which will describe how the right strategy is based on the results of the analysis. The interview data were analyzed by several stages, namely the SWOT stage in the internal and external environment, the weight and ranking calculation stage, the IFE-EFE and IE matrix analysis stage, and the conclusion stage. In the research analysis, the IFE and EFE matrix values were obtained, where the IFE value was 2.774 and the EFE value was 2.842. This condition shows that Bakpia and Wingko Babat XYZ  is in the V quadrant position, which means Hold and Maintain, in this position the right strategy is market penetration and product development, and in the SWOT quadrant in quadrant II Cobination supports the Diversification strategy, this is requires making alternative strategies that can be used to increase existing strengths so that they can overcome threats.Keywords: culinary culture, SWOT, IE.AbstrakPenelitian ini meneliti tentang  budaya kuliner tradisional yaitu Bakpia dan Wingko Babat XYZ dengan tujuan untuk menjaga warisan budaya kuliner lokal yang terletak di Bantul. Bakpia dan Wingko Babat XYZ merupakan tempat usaha tradisional khusus yang menjualkan makanan tradisional khas Yogyakarta di daerah bantul yang masih menggunakan cara-cara tradisional. Usaha ini sudah lama berdiri sejak 1997. Kurangnya strategi yang tepat menjadi penyebab ketika pengunjung lokal maupun mancanegara tidak mengetahui banyak informasi mengenai usaha kuliner Bakpia dan Wingko Babat XYZ. Berdasarkan hal tersebut, penelitian ini bertujuan untuk mengidentifikasi dan menganalisa proses pemasaran yang dilakukan Bakpia dan Wingko Babat XYZ, untuk mengetahui potensi budaya kuliner tradisional dan mengeksplorasi formulasi strategi di Bakpia dan Wingko Babat XYZ. Metode  penelitian pada penelitian ini adalah metode penelitian kualitatif, dimana dengan melakukan wawancara kepada key person secara langsung dan mendalam, observasi, dan  studi pustaka. Metode kualitatif  yang  digunakan yaitu kualitatif deskriptif yang akan mendeskripsikan bagaimana strategi yang tepat berdasarkan hasil analisis. Data  wawancara dianalisis dengan beberapa tahap-tahapan yaitu tahap SWOT pada lingkungan internal dan eksternal, tahap perhitungan bobot dan peringkat, dan tahap analisis matriks IFE-EFE dan IE, serta tahap kesimpulan. Pada analisis penelitian diperoleh nilai matriks IFE dan EFE, dimana nilai IFE sebesar 2,774 dan nilai EFE sebesar 2,842. Kondisi ini menunjukkan bahwa Bakpia dan Wingko Babat XYZ  berada pada posisi kuadran V yaitu berarti Hold and Maintain, pada posisi ini  strategi yang  tepat adalah penetrasi pasar dan pengembangan produk, serta pada kuadran SWOT  pada kuadran II Cobination mendukung stategi Diversifikasi, hal ini mengharuskan membuat alternative strategi yang dapat digunakan untuk meningkatkan Kekuatan yang ada sehingga dapat mengatasi ancaman.Kata Kunci: budaya kuliner, SWOT, IE. Author:Maria : Institut Seni Indonesia Yogyakarta References: Agustim, W., & Nurhidayat, M. (2020). Analisis Matrik IE pada UMKM Berbasis Produk Pertanian Kelompok Wanita Pelaku Usaha Tanaman Hias di Desa Sidomulyo Kota Batu. Referensi: Jurnal Ilmu Manajemen dan Akuntansi, 8(1), 73-78. https://doi.org/10.33366/ref.v8i1.1760.David, Fred R. 2016, Manajemen Strategis, Edisi 15. Jakarta: Salemba Empat.Evelyn, E. (2018). Analisis Manajemen Strategi Bersaing Dengan Matriks Ie, Matriks Swot Dan Matriks Qspm Pada Pt. Xyz. Jurnal Manajemen Bisnis dan Kewirausahaan, 2(4), 99-105. http://dx.doi.org/10.24912/jmbk.v2i4.4869.Rangkuti, Freddy. (2015). Analisis SWOT : Teknik Membedah Kasus Bisnis (Cara Perhitungan Bobot, Rating dan OCAI). Jakarta: PT Gramedia Pustaka Utama.Retnawati, L. (2018). Perencanaan Strategis Si/Ti dengan Metode Analisa Swot dan BSC untuk Meningkatkan Daya Saing di Universitas XYZ. JISKA (Jurnal Informatika Sunan Kalijaga), 2(3), 135-142. https://doi.org/10.14421/jiska.2018.23-02.Sugiyono. (2016). Metode Penelitian: Kuantitatif, Kualitatif dan R&D. Bandung: Alfabeta.Tyas, S. K., & Chriswahyudi, C. (2017). Perencanaan Strategi Pemasaran dengan Pendekatan Matrik IE, SWOT dan AHP untuk Mendapatkan Alternatif Strategi Prioritas. Prosiding Semnastek. https://jurnal.umj.ac.id/index.php/semnastek/article/view/1989/1632.


2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1655-1661
Author(s):  
Roshna Sukheoji Bhutada ◽  
Kritika Umate

The need of the day is a brisk lift to the resistant framework to keep it fit, battling today pandemic infections, for example, Covid — 19. One should get the right amount of nutrients from the diet, supplementation regimen to boost the immune system. These spices are always there to make tasty food as well as to protect the body from infectious diseases by building the immunity strong Ayurveda approaches to develop physiological reactions to facilitate immunity. Planning of diet is most important to boost immunity. As per many types of research to provide supplementary food which contains Zinc, Vitamin C, Vitamin D and immunity boosting food such as dealing with plenty of spices for a very long time. These spices include some rare to very common spices which we can found near us. The concern is that these viral infections are very prone to attack weak immunity and take the chance to affect the country to the globe. So the very common spices available will be always helpful to get through this Regular use of a few spices in the very simple form proves its importance as a medicine. In this article a review of spices is done which we are available near us, we are using it in our daily life and we are getting the benefit of these which a common people might not be fully aware of about role of immunity building of the body. 


2017 ◽  
Vol 7 (4) ◽  
pp. 121
Author(s):  
Faurna Lusiani Pakpahan ◽  
Hady Efendy

In an organization, leadership in an organization exists from a long time ago to the present, and leadership is a very important thing. A leader must use the right style to lead the organization he leads. The leader must also have good ethics in leading the organization and use appropriate strategies, so that organizational goals can be achieved. The purpose of this paper is to find out how much influence of leadership style, ethics and strategy what is used by an organization leader in a military institution that is Navy at Tanjung Priok Command Military Traffic (Kolinlamil) Jakarta, to be able to achieve organizational goals under leadership of Rear Admiral Agung Prasetiawan, M.AP. Kolinlamil is the main command in coaching and operations, which in the field of guidance of Kolinlamil is directly under the head a navy staff (Kasal), while the field of operations is directly under the Commander of the Indonesian Military (TNI). Kolinlamil is a military institution whose main task is to shift military or civilian forces from one area to another based on existing rules and orders.


Author(s):  
Heni Sulistiani ◽  
Ahmad Ari Aldino

In pandemic era, almost everyone struggles for their life. College students are such example. They have difficulty in paying tuition fee to continue their study. Based on this problematic situation, Universitas Teknokrat Indonesia grants the students who have good academic performance with tuition fee aid program. Many variables used for determining the grant made it hard to make a decision in a short time or even takes very long time. To make it easier for management to decide who is the right student to get grant, it needs classification model. The purpose of this study is the classification of grant recipients by using decision tree C4.5 algorithm. That can determine whether a potential student can be accepted as an awardee or not. Then, the results of the classification are validated with ten-fold cross validation with an accuracy, precision and recall with the score of 87 % for all part. It means the model perform quite well to be implemented into system.


2008 ◽  
Vol 136 (9-10) ◽  
pp. 555-558
Author(s):  
Smiljka Popovic-Deusic ◽  
Milica Pejovic-Milovancevic ◽  
Saveta Draganic-Gajic ◽  
Olivera Aleksic-Hil ◽  
Dusica Lecic-Tosevski

For a long time, there was a strong belief of existing continuity between childhood-onset psychoses and adult psychoses. Important moment in understanding psychotic presentations during infancy and childhood is Kanner's description of early infantile autism. Later studies of Rutter and Kolvin, as well as new classification systems, have delineated pervasive developmental disorders from all other psychotic disorders in childhood. But clinical experience is showing that in spite of existence of the group of pervasive developmental disorders with subgroups within it and necessary diagnostic criteria there are children with pervasive symptoms, who are not fulfilling all necessary diagnostic criteria for pervasive developmental disorder. Therefore, in this paper we are discussing and pointing at psychotic spectrum presentations in children, which have not the right place in any existing classification system (ICD-10, DSM-IV).


2021 ◽  
Vol 3 ◽  
pp. 27
Author(s):  
Valérie Rocchi ◽  
Daniel Brissaud

Industry 4.0 is a promising concept that allows industries to meet customers’ demands with flexible and resilient processes, and highly personalised products. This concept is made up of different dimensions. For a long time, innovative digital technology has been thought of as the only dimension to succeed in digital transformation projects. Other dimensions have been identified such as organisation, strategy, and human resources as key while rolling out digital technology in factories. From these findings, researchers have designed industry 4.0 theoretical models and then built readiness models that allow for analysing the gap between the company initial situation and the theoretical model. Nevertheless, this purely deductive approach does not take into consideration a company’s background and context, and eventually favours one single digital transformation model. This article aims at analysing four actual digital transformation projects and demonstrating that the digital transformation’s success or failure depends on the combination of two variables related to a company’s background and context. This research is based on a double approach: deductive and inductive. First, a literature review has been carried out to define industry 4.0 concept and its main dimensions and digital transformation success factors, as well as barriers, have been investigated. Second, a qualitative survey has been designed to study in-depth four actual industry digital transformation projects, their genesis as well as their execution, to analyse the key variables in succeeding or failing. 46 semi-structured interviews were carried out with projects’ members; interviews have been analysed with thematic content analysis. Then, each digital transformation project has been modelled regarding the key variables and analysed with regards to succeeding or failing. Investigated projects have consolidated the models of digital transformation. Finally, nine digital transformation models have been identified. Industry practitioners could design their digital transformation project organisation and strategy according to the right model.


2011 ◽  
Vol 60 (5) ◽  
Author(s):  
Fabio Persano

Negli Stati Uniti il dibattito sull’aborto è sempre un tema molto caldo. Questo saggio, diviso in due parti (la prima parte è stata pubblicata sul precedente numero della rivista) prova a ripercorrere l’evoluzione della giurisprudenza costituzionale statunitense in materia d’aborto, evidenziando i cambiamenti che ciascuna decisione ha apportato al quadro giuridico precedente. In questa seconda parte, la dissertazione sui singoli casi giurisprudenziali decisi dalla Suprema Corte prosegue con il caso Planned Parenthood v. Casey. Esso è stato una vera occasione mancata nella storia dell’aborto negli Stati Uniti, perchè venne sfiorata la overrule di Roe v. Wade. Ciononostante, venne sostanzialmente confermato l’impianto delle decisioni precedenti, in considerazione del fatto che una decisione contraria all’aborto avrebbe spiazzato un popolo che per decenni aveva organizzato la propria vita in funzione anche della possibilità di abortire. Con questa decisione si distinse la gravidanza in due periodi: quello della pre-viabilità, in cui la donna era completamente libera di abortire in accordo col medico; quello della post-viabilità, in cui gli Stati avrebbero potuto legiferare, pur dovendo consentire l’aborto nel caso di pericolo per la vita o la salute della madre. Inoltre il diritto d’aborto venne radicato nella libertà riconosciuta nel XIV Emendamento della Costituzione. Nel successivo caso Stenberg v. Carhart fu oggetto di giudizio l’aborto a nascita parziale: una legge del Nebraska aveva bandito questa pratica, ma la legge fu annullata dalla Corte Suprema, nonostante il duro dissenso di ben quattro giudici, fra cui Anthony Kennedy. Successivamente a questa decisione, il Congresso prese l’iniziativa di emanare il Partial Birth Abortion Ban Act. Questa legge fu impugnata in via d’azione davanti alla Corte Suprema e ne scaturì la sentenza Gonzalez v. Carhart. In questa decisione la Corte fece un passo indietro rispetto a Stenberg, affermò la legittimità del bando, sostenne che l’aborto a nascita parziale non è mai necessario per tutelare la vita della donna e che Stenberg era fondato su convinzioni erronee sul punto. Il saggio si conclude con delle interessanti considerazioni in merito ai possibili sviluppi futuri circa il tema dell’aborto negli Stati Uniti, auspica la “liberalizzazione del diritto alla vita” ed avanza una originale proposta, valida per tutti i Paesi in cui l’aborto è legalizzato. ---------- Abortion debate is always a hot subject in the United States. This essay, divided into two parts (the first part has been published on the previous issue of this review) tries to go along the development of U.S. constitutional caselaw about abortion, pointing out the change that each judgement caused to the previous law framework. In this second part, the dissertation about U.S. Supreme Court single case-law goes on by Planned Parenthood v. Casey. It was a real missed occasion in the abortion affair in the United States, because it was on the verge of overruling Roe v. Wade. However, the framework of the previous cases was substantially confirmed, considering that a decision against abortion would place out people who for a long time organized their own life in connection to the right of abortion. By this judgement, pregnancy was divided into two periods: pre-viability, when woman was completely free to have an abortion in agreement with her doctor; post-viability, when States could restrict abortion, except for woman life or health risks. Moreover, abortion right was founded on liberty, acknowledged by XIV Amendement. In the following case Gonzalez v. Carhart, partial-birth abortion was judged: a statute of Nebraska banned this activity, but it was stroked down by Supreme Court, despite of the dissenting opinion of four judges (Anthony Kennedy was one of them). After this judgement, the Congress wanted to issue Partial Birth Abortion Ban Act. This statute was pre-enforcement challenged to the Supreme Court, and Gonzalez v. Carhart was poured. In this judgment, the Court drew back Stenberg, it stated the ban was legitimate, partial-birth abortion never is necessary to safeguard woman health, and Stenberg was founded on wrong beliefs on this matter. This essay concludes with interesting considerations about possible developments about abortion affair in the United States, wishes “liberty of right to life” and proposes a solution for all the countries where abortion is legal.


2020 ◽  
Vol 5 (2) ◽  
pp. 77
Author(s):  
Anissa Diyah Lestari ◽  
Luky Indra Gunawan ◽  
Dyah Julia Syifa ◽  
Ronny Wahyu Wibowo ◽  
Hendramawat Aski Safarizki

AbstrakPada era teknologi sekarang ini, beton adalah sebagai salah satu bahan bangunan yang paling banyak digunakan di Indonesia. Inovasi diperlukan untuk peningkatan mutu beton dalam kuat tekan beton dan harga lebih murah dibandingkan dengan beton normal. Limbah penambangan batu kapur di Wonogiri tidak dimanfaatkan dengan baik. Sehingga menimbulkan polusi udara dan mencemari lingkungan di sekitar penambangan. Maka dari itu, inovasi ini menggunakan limbah kalsit untuk ditambahkan sebagai bahan tambah pembuatan beton. Luaran yang diharapkan dalam penelitian ini adalah dapat mengetahui komposisi yang pas untuk penambahan kalsit dalam campuran pembuatan beton dan menjadikan beton dengan bahan tambah limbah kalsit sebagai beton inovatif ramah lingkungan dan memiliki nilai ekonomis. Serta draft artikel ilmiah tentang beton inovatif yang dituangkan dalam sebuah draft artikel ilmiah, laporan kemajuan dan laporan akhir. Hasil yang telah dicapai saat ini berdasarkan indikator keberhasilan jangka pendek, yaitu telah dilaksanakannya penelitian dan pembuatan beton dengan bahan tambah kalsit dengan beberapa varian, serta pengujian sampel beton setelah berumur 14 hari. Pada penelitian ini mengetahui komposisi optimum penambahan kalsit terhadap kuat tekan beton, dengan penambahan kadar kalsit sebesar 5%, 9%, dan 15% benda uji yang digunakan adalah silinder berdiameter 15 cm dengan tinggi 30 cm sebanyak 9 buah dimana pengujian dilakukan pada umur 14 hari. Hasil analisis data pengujian kuat tekan beton kalsit adanya peningkatan pada variasi 9% kalsit sebesar 20,71 MPa (4.12%) dibandingkan beton normal 19,89 MPa. Maka kesimpulannya penggunaan kalsit dapat meningkatkan kuat tekan beton.Kata Kunci: Efektivitas, Beton SCC, Kalsit, Kuat TekanAbstractConcrete is one of the most widely used building materials in Indonesia In the current technological era. Innovation is needed to improve concrete quality in concrete compressive strength and prices are cheaper than normal concrete. Waste from limestone mining in Wonogiri is not utilized properly. So that it causes air pollution and pollutes the environment around mining. Therefore, this innovation uses calcite waste to be added as an ingredient to add concrete. The expected output in this study is to be able to find out the right composition for the addition of calcite in a mixture of concrete making and to make concrete with calcite added waste as an innovative concrete that is environmentally friendly and has economic value. As well as the draft scientific article about innovative concrete as outlined in a draft scientific article, progress report and final report. The results that have been achieved at present are based on short-term success indicators, namely the research and manufacture of concrete with calcite added ingredients with several variants, as well as testing of concrete samples after being 14 days old. In this study, the optimum composition of calcite was added to the compressive strength of concrete, with the addition of calcite levels of 5%, 9%, and 15%. The test material used was a cylindrical diameter of 15 cm with a height of 9 cm in which testing was done at 14 days . The results of the analysis of the test data for compressive strength of calcite concrete was an increase in the variation of 9% of calcite by 20.71 MPa (4.12%) coMPared to normal concrete of 19.89 MPa. So the conclusion is the use of calcite can increase the concrete compressive strength.Keywords: Effectiveness, SCC Concrete, Calcite, Compressive Strength


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