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Syafwandi
Universitas Putra Indonesia YPTK Padang
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Journal : proceeding of world conference

 1 
Effect of Use of Substituted Oil Palm Shell Boiler Ash on Cement and Substituted Glass Powder on Fine Aggregate on Concrete Compressive Strength Syafwandi, Syafwandi; Fatoni, Adrian
Journal of World Conference (JWC) Vol. 2 No. 2 (2020): March 2020
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/prd.v2i2.219

Abstract

This research aims to determine the effect of palm shell boiler ash substituted in cement and glass powder substituted on fine aggregate in concrete mixes on compressive strength and slump values and to determine the usefulness of the concrete. This research used an experimental method with 9 variations of substitution materials, a total of 60 samples of cube-shaped test specimens measuring 15cmx15cmx15cm. The variation of Oil palm shell boiler substitution used is 0%, 6%, 8%, and 10%, and for glass powder substitution variation is 0%, 5%, 10%, and 15%. From the results of the compressive strength test conducted on the 7th day, the substitution of 8% Oil palm shell boiler Ash and 10% glass powder or variation E received the highest compressive strength result of 19,593 MPaWhile on the 28th day, substitution of 6% oil palm shell boiler ash and 5% glass powder or variation A received the highest compressive strength yield of 22,630 MPa.
Effect of Using Bagasse Ash and Glass Powder on Concrete Compressive Strength Syafwandi, Syafwandi; Sulistyawan, Latif
Journal of World Conference (JWC) Vol. 2 No. 2 (2020): March 2020
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/prd.v2i2.220

Abstract

Bagasse ash is a waste from the sugar factory industry which has silica content and grain size is relatively the same as cement. Glass powder is made from industrial glass and household waste, has a silica content and grain size is relatively same as sand. The use of both wastes as concrete substitutes is expected to reduce environmental pollution and exploitation of natural resources. This study aims to determine the effect of bagasse ash as a cement substitution and glass powder as sand substitution in a concrete mixture on the compressive strength. This study uses a mixture of bagasse ash 2.5%, 5%, and 7.5% by weight of cement, and the glass powder is 5%, 10%, and 15% by weight of sand. Compressive strength testing on days 7 and 28. The results of this study are the higher percentage of substitution materials, workability will decrease. Compressive strength testing shows that all variations have resulted under normal concrete. The highest compressive strength is obtained from variation A with a mixture of 2.5% bagasse ash + 5% glass powder that is 24.50 MPa. Variation of the mixture with bagasse ash of 2.5% has a higher compressive strength than other variations on day 28.
Comparison the Analysis Results of Soil Improvement PVD Preloading & Stone Column Methods for Accelerating Soil Consolidation Anneesha Fairuz; Syafwandi
Journal of World Conference (JWC) Vol. 3 No. 1 (2021): January 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

The third runway plan for Soekarno-Hatta Airport will be right on land which is quite dominated by soft soil, which of course is very prone to large subsidence at a relatively slow time. Because the time factor is very narrow while the target is constantly being pursued, it is necessary to have an appropriate soil improvement method to overcome this problem. There are two options, (1) Prefabricated Vertical Draining (PVD) and (2) Stone Column. Both are installed in a triangle pattern at two different distances. The effectiveness analysis between the two was carried out based on references from FHWA (1983) and Priebe (1995). The final output of this final project report is the result of reduction obtained and the length of time required to achieve the degree of consolidation in accordance with the requirements, with comparisons based on the results shown by the time vs settlement curve. The author's initial hypothesis considers that the use of PVD is superior to the use of Stone Columns in this case because the decline time is faster even though the resulting decrease is not much different from that produced by Stone Column.
Effect of Using Roof Clay and Charcoal Ash as a Substitution of Coarse Aggregate and Cement in a Concrete Compressive Strength Agung Sumarno; Dyah Robbiana Zulfa; Syafwandi; Agyanata Tua Munthe
Journal of World Conference (JWC) Vol. 4 No. 4 (2022): July 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Infrastructure and technology development in the construction sector are rapidly evolving, particularly in Indonesia. Because practically every construction building is built of concrete, this supports the increased use of natural materials as raw materials for creating concrete to keep up with the world's rapid development. As a result, new technologies are required to limit the use of substitute elements in concrete mixtures while also minimizing environmental damage. The researchers used clay tile waste and charcoal ash as a substitute for coarse aggregate and cement in the concrete mix in this final project. This study uses an experimental approach with a total of 36 samples of cylindrical samples with a size of 10cm x 20cm, a substitution variation of 20%, 25% of total coarse aggregate, and charcoal ash 5% of total cement weight. On days 3, 7, 14, and 28, the test object will be slumped to see how workable it is and how strong it is. According to the findings, the higher the percentage in the concrete mixture, the lower the slump value, and the compressive strength test results. The highest is the 25% GTL substitution variation. At the age of 28, 5% AA equals 27.3 MPa. The results of testing the compressive strength of concrete with the substitution of tile waste reached the quality of K-225.
The Impact of Resin as a Substitute for Cement (Polymer) and Ceramic as a Substitution of Fine Aggregate in High-Quality Concrete Griff Greucenzky; Agung Sumarno; Syafwandi; Agyanata Munthe
Journal of World Conference (JWC) Vol. 4 No. 4 (2022): July 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Infrastructure is the entire structure and basic facilities needed by the community to support various community activities in daily life. The infrastructure consists of technical facilities, physical, systems, hardware, and software needed to provide services to the community and support the network structure so that the economic and social growth of the community can run well. Concrete is a material that is formed from mining products, therefore concrete has an impact on the environment. The research method used is an experiment using SNI 7656;2012 as a reference. This test was carried out by making 27 concrete samples measuring 15 x 30 cm, 9 samples of polymer concrete with 15% ceramic variation, 9 polymer concrete with 17% ceramic variation, and 9 conventional concrete as comparisons. Polymer concrete has a compressive strength of 31.53 MPa for the 15% ceramic variation and has the highest compressive strength of 32.22 MPa for the 17% variation. The compressive strength of polymer concrete with a variation of 15% is 5.69% stronger than normal concrete, while polymer concrete with a variation 17% is 11.36% higher than normal concrete.
Comparative Analysis of Carrying Capacity of Mini Pile Foundation and Well Case Study of Oil Palm Factory Development, Central Kalimantan Province Syafwandi Syafwandi; Rhenake Yovica; Agyanata Tua Munthe; Agung Sumarno; Aldo Wirastana Adinegara
Journal of World Conference (JWC) Vol. 4 No. 4 (2022): July 2022
Publisher : NAROTAMA UNIVERSITY, Indonesia

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Abstract

Bearing capacity is an aspect that is considered and considered before determining the type of foundation to be used in a building. The Palm Oil Mill Development Project in Central Kalimantan Province has a sand type of subgrade with a dense consistency. The Planning Consultant plans the type of Spun Pile Foundation in Zone C of Kernel Warehouse and Bakil Warehouse Buildings. The method used in the calculation uses Data Analysis of the CPT Test (Soil Test) and Hand boring. In Zone C Test Soil Test used is Soil Test 4 (S4) and Soil Test 5 (S5), for Hand boring using Hand boring 2 (HB-2). Calculation Analysis Using the Meyerhof formula to get the ultimate bearing capacity, lateral and axial bearing capacity. Based on the Calculation Analysis, the Ultimate Mini Pile Foundation Bearing Capacity is 20x20 87.20 tons in the Soil Test 4 area and 101.18 tons in the Soil Test 5 area. For the 20cm diameter well foundation, the calculation results are 68.45 tons in the Soil Test 4 area and 79.42 tons in the Soil Test 5 area. The calculation of the lateral permit load is obtained in the Soil Test 4 area for Mini Pile 20x20 2.23 tons and the Well Foundation 2.23 does not meet the requirements because it is less than the permit workload working in Zone C, which is 2.72 tons. Soil Test 5’s calculation meets the requirements with higher yields than the load working in the area, namely for Mini Pile Foundations 20x20 3.12 tons and Wells Foundations 3.12 tons.
Co-Authors Abdila, Syafiadi Rizki Ade Rahmat Ihsan Adelia Rizky Fatmawati Adi Nurmahdi Agung Sumarno Agung Sumarno Agung Sumarno Agung Sumarno Agung Sumarno Agung Sumarno Agung Sumarno Agung, Sumarno Agyanata Munthe Agyanata Tua Munthe Ahmad Akmal Ahmad Sunafis Al Haziz ahmad yani Ahmad Yani Aldo Wirastana Adinegara Ali Ramdani Bagaskara Anandari, Febrina Andar Indra Sastra Andika, Afri Andri B, Alza Syofyan Andri Irfan Rifai Andriani, Desy Anggella Chandini Anneesha Fairuz Aprilia, Mauliza Arafah, Zahid Nugrah Arga, Kevin Arie Prima Arridhi, Dzulhijjatia Bahri, Efri Syamsul Bambang Karsono Barmitoni Budi Susetyo Budi Susetyo Danny Andrian Dasril, Mience Defni Albar Denny Rinaldi Destrina Dwi Aryani Dona Gusmawita Donly Wance Lubis Dyah Robbiana Zulfa Elhazri Hasdian Eliya Pebriyeni Eliza, Rispa Endra, Sumarta Ernis Ernis Erwin A Fahrel Alfais. A Fahrurrozi Al-Ambari Fajri Afrizal Fatmawati Adelia Rizky Fatmawati, Adelia Rizky Fatoni, Adrian Fauzan Alhaq Bukharla Fauzan Delesa Febrina Anandari Fernando, Novriadi Finola Fiftem Eka Putri Fitria, Lailani Griff Greucenzky Gusmawita, Dona Hanifah Afdisya Harfan, Syakhroni Harini, Nadia Dwi Harto Nurbian Hasugian, Deborawati Hendy Yusman Firdaus Herlina Hermanto Dwiatmoko Heru Andraiko Hery Widijanto Hidayatul Putri Azizah Ibar Adi Permana Ifdal Ifdal Iis Novianti Indro Wiyarno intan permata sari Irvandhel, Muhammad Isnaini, Khalida Jamilus . Jefri Andriadi Joniputra, Joniputra Juairiyah Juairiyah Juwita Wirta Sri Depi Kastanja, Johana Kevin Arga Kevin Deodatus, leonardus Khusnul Khotimah khusnul khotimah Kukuh Mahi Sudrajat Kurniati, Era Tri Suci Laila, Dilla Apri Lailani Fitria Leni Zahara leny leny leny Lina Marlina Lonarissa Harditya Putri, Vandika Nadia Lusiana Lusiana Lusiana M, Alexander Agung M. Yogi Riyantama Isjoni Mardifa Wahyu Putri Marza Dona Meilania Indah Prihatiningsih Menhard Mohammad Zaenal Arifin Mona Nofita Sari Muhammad Isradi Muhammad Ridwan Muna Sovia Mamba’usa’adah Nofriadi Nofriadi Novalinda, Novalinda Novriadi Fernando Oktarina, Yolanda Pawening Esti Pramundi Pranata, M. Yogi Eka Pratama, Eri Prima, Arie Putra, Pramudita Syah Putra, Riyosnal R, Wahyu Rahmadia Raden Hendra Ariyapijati Rafki, Rafnelly Rahayu, Witri Ratnawita Ratnawita Ratnawita Ratnawita Resi Aseanto Rhenake Yovica Rian Hidayat Riandani, Ade Rina Wismayarni Rinaldi, Denny Rino Yuda Rino Yuda Rino Yuda Rio Naldi Rio Putra Rio Putra, Rio Riyosnal Putra Romadhon Rosi, Vevia Rusdi Rusdi Ryan Adisya Cerra Sandi Indratama Sari , Juli Arsismen Sarianja, Suherdian Septa Setyo Sembodo, Danu Shalsabillah, Ade Rahmadilla Shania Vadhillaesa Siow Heng Loke Siswahyudianto Sitinjak, Mika Sulistyawan, Latif Sumarno Agung Sumarno, Agung Sumarno, Agung Sumiyati Sumiyati Sumiyati Sumiyati SUMIYATI SUMIYATI Syafiadi Rizki Abdila Syafrina Dina Syafrita, Willa Kurnia Eka Syakhroni Harfan Taufid, Hidayattul Tjut Dwi Anggraini Damcha Umi Latifah Valani , Silvia Vanny Nuary Winanda Wahyu Nengsri Putri Widiasari, Zulfeni Wido Novaldi Gusra Wulandari, Febby Nadia Yasrul Sami Yulasmi Yunas, Ibnu Prama Yunita, Asri Zahid Nugrah Arafah Zulkifli Z