18 research outputs found
Plastic shrinkage cracking of concrete incorporating mineral admixtures and its mitigation
No full textEffect of the Incorporation of Mineral Admixtures and Shrinkage-Mitigating Ingredients on the Plastic Shrinkage of Concrete
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Flow loss in superplasticized limestone calcined clay cement
No full textAbstract:
This study investigates the mechanisms behind fluidity loss in superplasticized limestone calcined clay cement (LC3), a sustainable alternative to ordinary Portland cement (OPC). Despite its environmental benefits, in presence of superplasticizers, LC3 experiences significant challenges in maintaining workability, an issue of which this paper examines the root cause. It focuses on the role that initial reactions play in creating additional surface area and the consequence thereof on the performance of polycarboxylate ether superplasticizers (PCE) in LC3. Experimental results reveal that while PCEs initially disperse the cement particles, fluidity decreases rapidly over time, primarily due to the continuous generation of those new surfaces that exceed the adsorption capacity of PCEs. The study also examines the potential intercalation of PCE side chains into calcined clays and shows that even in the worst‐case scenario with montmorillonite clays, intercalation is not a significant contributor to slump loss when the clays are calcined. These findings suggest that alternative strategies, such as slowing down the initial reactivity of the calcined clays, for example by combining PCEs with other additives like diphosphonates, may be necessary to improve flow retention in superplasticized LC3 systems
Flow loss in superplasticized limestone calcined clay cement
No full textISSN:1551-2916ISSN:0002-7820ISSN:0002-782
D3 method: Direct and delayed dosing: New insights into specific surface area modification by superplasticizers
No full textISSN:0008-884
Ya'juj dan Ma'juj dan Hubungannya dengan Dunia Modern: Telaah Atas Penafsiran Imran Hosein dalam An Islamic View Of Gog And Magog In The Modern World
No full textImran Hosein is a sufi-interpreter who is concerned about the study of Gog and Magog. His interpretation combines external(z}ahir) and internal (bat}in)knowledge. From this, he produced interpretation out of the mainstream Muslim thought. His interpretation is summarized in the book An Islamic View of Gog and Magog in the Modern World. He viewed that Gog and Magog had long come out. They were the Khazars of the Caucacus Mountains and afterwards divided into Anglo-American-Israeli Alliance (Gog) and modern Russia (Magog). They are the ones behind the corrupt, disruptive, and godless modern world system. This paper analyzes Imran Hosein interpretation of Gog and Magog and its relationship with the modern world. Furthermore, the author also tests the validity of his interpretation based on, (a) the factors behind the interpretation, and (b) the extend to which the possible interpretation when viewed from the rules of us}ūl al-tafsīr. The result of this study concludes that there are inconsistencies in the use of the methodology used by Imran Hosein and injustifices in using interpretive sources. This makes the product of the interpretation non-scientific
Pengaruh Religiusitas dan Pendapatan terhadap Kepatuhan Membayar Zakat Hasil Tambak
No full textThe collection of zakat malls in Indonesia is growing every year. However, the collection rate is still low. One type of zakat mal is zakat from ponds. Pond cultivation until now is counted as a business that provides extraordinary income. The revenue generated by the product encourages the community to develop the business. This study aims to determine the effect of religiosity and income on compliance with paying zakat from ponds. This study uses a survey method with a quantitative research approach. The population in this study were pond farmers in Ma'rang District, Pangkep Regency. Determination of the sample using non-probability sampling method with purposive sampling type. The criteria that have been set by the author in this case the respondents are pond farmers who are Muslim, have been farming for at least 3 years and are obliged to pay zakat. The sample used in this study was 100 respondents. The data analysis used was multiple linear regression analysis using the IBM Statistics SPSS version 26 application. The results showed that religiosity had an effect on compliance with paying zakat from ponds. Income has an effect on compliance with paying zakat from ponds
IMPLEMENTASI AKAD SALAM TERHADAP PENJUALAN KAPAL DI LUAOR KABUPATEN MAJENE
No full textAbstrak
Penelitian ini bertujuan untuk mengetahui bagaimana mekanisme implementasi akad salam terhadap penjualan kapal di Luaor Kabupaten Majene dan mengetahui apakah jual beli penjualan kapal sudah sesuai Syariah. Jenis penelitian yang digunakan berupa studi kasus dengan pendekatan deskriptif . Sumber data yang digunakan adalad data primer yaitu data yang diperoleh langsung dari sumber utama. Pengumpulan data yaitu observasi wawancara dan dokumentasi yang dimana penulis turun langsung kelapangan. Hasil yang diperoleh penulis dari penelitian ini mengenai mekanisme implementasi akad salam terhadap penjualan kapal di Luaor sudah sesuai dengan pengertian akad salam, akan tetapi mereka tidak mengetahui bahwa transaksi yang mereka lakukan menggunakaan akad salam, dikarenakan minimnya pendidikaan yang ada disana sehingga akad salam awam bagi mereka.
Kata Kunci: Akad Salam, Kapal Luaor, Majene, Syariah
Abstract
This research aims to find out how the implementation mechanism of the salam contract on the sale of ships in Luaor, Majene Regency and find out whether the sale and purchase of ship sales is in accordance with Sharia. The type of research used is a case study with a descriptive approach. The data source used is primary data, namely data obtained directly from the main source. Data collection is observation interviews and documentation where the author goes directly to the field. The results obtained by the author of this study regarding the implementation mechanism of the salam contract on the sale of ships in Luaor are in accordance with the understanding of the salam contract, but they do not know that the transactions they carry out use the salam contract, due to the lack of education there so that the salam contract is unfamiliar to them.
Keywords: Akad Salam, Luaor Ship, Majene, Shari
GREEN E-SPORTS BUILDING DESIGN WITH FUTURISTIC PRINCIPLE APPROACH
No full textAdvances in technology have made some activities shift from offline to online. This condition also occurs in sports activities, namely electronic sports (e-sports). The public's enthusiasm for welcoming e-sports is accompanied by the emergence of e-sports teams that have training facilities for players. However, in its implementation, most e-sports training facilities are wasteful in electrical energy consumption. Based on this phenomenon, the author offers the design of an environmentally friendly e-sports training facility by applying a green building nuanced design through an approach to futuristic architectural principles. This research uses architectural design methods to produce an e-sports training facility design with green building nuances. The design of the building site is placed in the middle of the land, to provide undeveloped areas on all sides of the site for green areas to reduce global warming. The façade of the building uses wide glass combined with a curtain wall frame so that natural lighting in the space in the building is more optimal. The placement of line ornaments on the outer side, as secondary skin, reduces the radiance of sunlight in the afternoon. The use of prefabricated materials has advantages in terms of shape, size, and ease of installation. The use of ACP combined with exposed steel frames without repainting is a measure to reduce pollution and a representation of honesty
The Usage of CIDOS and Social Network Sites in Teaching and Learning Processes at Malaysian Polytechnics
No full textIn 21st century learning, students use educational technologies to apply knowledge to new situations, analyse information,collaborate, solve problems, and make decisions. Utilising emerging technologies, to provide expanded learning opportunities, is critical to the success of future generations. In this paper, the author will share the findings on the usage of CIDOS and Social Network Sites in teaching and learning processes at Malaysian Polytechnics. Two sets of questionnaires were distributed to a group of 84 diploma students and 41 lecturers from Politeknik Ibrahim Sultan, Politeknik Merlimau, Politeknik Tuanku Syed Sirajuddin, Politeknik Kota Kinabalu, and Politeknik Sultan Idris Shah. The results of the study show the existence of communication and interaction difficulties in existing Learning Management Systems (LMS). As a recommendation for future research, it is suggested to integrate current LMS with Facebook to support Online Collaborative Learning (OCL)
