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All Journal Gaung Informatika PROSIDING Prosiding Seminar Nasional The Spirit of Society Journal : International Journal of Society Development and Engagement Martabe : Jurnal Pengabdian Kepada Masyarakat Astonjadro PROFICIO: Jurnal Pengabdian Masyarakat International Journal of Sustainable Building, Infrastructure and Environment
Marwahyudi Marwahyudi
Sahid Surakarta University
Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Environmental Science Social Sciences Other

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The Effectiveness of Substitution Fine Aggregate by Pacitan Coral Sand to the Compressive Strength of Concrete Devi, Rida Handiana; Safarizki, Hendramawat Aski; Putra, Imam Prasetyo Azhari; Marwahyudi, Marwahyudi
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 4, No 1 (2023)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v4i1.13388

Abstract

The south Pacitan district's coastal area in Indonesia has become a tourist place because of the more beach with captivating coral. However, that area's natural resources have not altered the function of construction material. Many research uses the coral reef to admixture concrete material in other countries that affect compressive strength. In this research, the coral reef from Pacitan modified the original dimension of fine aggregate for material substitute o to become the coral sand of fine aggregate with the different material characteristics from other coastal areas. The sample variation was created into four categories, and five samples in every category were concrete without coral sand or 0% coral sand content, 75% with coral sand, 85% with coral sand, and 90% with coral sand. All samples were tested when the concrete age was achieved 28 days after immersing for 14 days, so the concrete was in the maximum setting time condition. The result shows that the percentage effectiveness of coral sand content is 75% as fine aggregate substitution by increasing the compressive is 15.24%, however higher coral sand content causes the decrease until 27.12% to concrete without coral sand, this result can effect by the material characteristic of coral sand when changing the dimension
TEGANGAN GESER BATU BATA BERKONSTRUKSI PADA DINDING RUMAH RAWAN GEMPA Marwahyudi, Marwahyudi
ASTONJADRO Vol. 8 No. 2 (2019): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v8i2.2725

Abstract

Dinding adalah suatu komponen penting dalam pembuatan gedung. Gedung merupakan tempat aktifitas manusia didalam berinteraksi, bekerja dan beristirahat. Sehingga dinding aman diharapkan gedung juga aman. Dinding merupakan susunan dari beberapa komponen yaitu: Batu bata, mortar semen. Batu bata sebagaibahan yang diikat dan adonan adalah sebagai bahan yang mengikat. Batu bata berasal dari bahan utama tanah sawah dicampur air dan sekam padi kemudian dikeringkan manual dengan dijemur panas matahari. Setelah kering dibakar dengan sekam padi. Sedangkan adonan adalah campuran semen, pasir dan air. Kwalitas dinding dipengaruhi oleh kwalitas bahan batu bata dan kwalitas daya pengikat dari Mortar. Artikel ini dikhususkan  peningkatan kekuatan pada daya ikatan Mortar pada batu bata. Kekuatan ikat ini,  dipengaruhi oleh kekuatan ikat adonan  dan luasan yang diikat. Oleh sebab itu perlu disain batu bata yang menambah luasan daerah yang diikat sehingga dengan meningkantnya luasan yang diikat maka diharapkan bisa meningkatkekakuan dan pada akhirnya meningkatkan tegangan geser. Model batu bata yang ditawarkan untuk meningkatkan luas ikatan adalah model batu bata dari  Marwahyudi No P00201507718. Ikatan batu bata akan dibuat dua kelompok yaitu kelompok usulan disain dan kelompok desain yang sudah ada. Hasil dibandingkan dan dianalisis ASTM E-519 Test Setup.    
STIFFNESS DINDING BATU BATA MENINGKATKAN KEKUATAN STRUKTUR Marwahyudi, Marwahyudi
ASTONJADRO Vol. 9 No. 1 (2020): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v9i1.2840

Abstract

ABSTRAKStiffness atau kekakuan didefinisikan besar gaya yang menggerakan benda sejauh simpangan tertentu. Pada struktur gedung milai kuat tekan, simpangan sangat mempengaruhi kekuatan gedung. Nilai kuat tekan beton bisa dihitung dilaboraturim dan untuk nilai simpangan dapat dihitung dengan aplikasi software. Pada perencana gedung dalam merencana gedung kebanyakan tidak mempertimbangkan nilai kekuatan yang disumbangkan oleh dinding batu bata. Berdasarkan observasi dilapangan terkait gedung yang terpapar gempa, banyak sekali dinding mengalami kerusakan. Kondisi ini mengambarkan bahwa dinding mendapatkan gaya sehingga mengalami kerusakan. Kerusakan  yang ada dapat terlihat maupun belum terlihat oleh penglihatan. Beberapa kerusakan dilapangan menarik untuk dianalisis terkait kerusakannya. Analisis tersebut mengunakan metode matematika matrik. Metode ini untuk mengetahui seberapa kemampuan menahan gaya lateral. Kemampuan dinding menahan gaya lateral sangat diperlukan dalam kekuatan struktur. Sehingga kemampuan dinding menahangaya lateral akan mempengaruhi kekuatan struktur. Kemampuan dinding batu bata menahan gaya lateral dinyatakan sebagai nilai  stiffness.       Kata kunci: Kekuatan struktur, gaya lateral Stiffness
PRESS STRONG CONCRETE ADDED SHELL OF KEONG SAWAH Gumilang, Pandu Dimas; Safarisky, Hendramawat Aski; Marwahyudi, Marwahyudi
ASTONJADRO Vol. 10 No. 1 (2021): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v10i1.3986

Abstract

Concrete is a building structure whose development is relatively fast because it is an important part of development. Shells of keong sawah, which are pests for rice plants, can also be used as an added material in making concrete because they contain a large amount of calcium carbonate. This study aims to determine the effect of adding shells of keong sawah on the compressive strength of concrete with a variation of 0% and 15% on the weight of cement. This research was conducted using a cylindrical concrete specimen with a diameter of 15 cm and a height of 30 cm. The results showed that the addition of 15% powder shells of keong sawah had an increase in compressive strength, namely 31.1 MPa when compared to the 0% variation with a compressive strength value of 25.6 MPa. It can be concluded that in this study the addition shells of keong sawah 15% by weight of cement can increase the compressive strength of the concrete. 
Durability of Concrete Based on the Remaining Life of the Building Case Study: Reinforced Concrete in Klaten District Widodo, Slamet; Aski Safarizki, Hendramawat; Marwahyudi, Marwahyudi
ASTONJADRO Vol. 11 No. 3 (2022): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v11i3.7848

Abstract

Concrete durability is the ability of concrete to last as it was originally planned, in the structure of a building can be defined as the ability to maintain function, stability and aesthetics due to environmental influences so as not to incur large maintenance and repair costs during the planned service life. The durability aspect is very important, especially for infrastructure that has a fairly long service life. Building life is the period or time during which a structure is required to continue to function as planned. In building structures whose construction has been completed, both new and old buildings, specific data related to the quality of the concrete and the planned age of the building is quite difficult to obtain, this is because the influence during the implementation of construction is also not good in governance. documentation, both technical documents and other non-technical documents, therefore it is necessary to have a sufficiently representative tool to test the concrete quality of a building that has been completed to comply with the quality of the built concrete.
Structural Performance Towards Dynamic Earthquake Spectrum Response According to SNI 1726-2012 and SNI 03-1726-2019 (Study Case Hospital Building ini Solo) Listiana, Icho Dharma Tri; Safarizki, Hendramawat Aski; Marwahyudi, Marwahyudi
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.12770

Abstract

Tectonic earthquakes are a type of earthquake that can cause significant damage compared to other earthquakes. These tectonic earthquakes often occur in Indonesia, considering that geographically Indonesia is located between active earth plates. So that in earthquake-prone areas it is necessary to plan earthquake-resistant building structures, this is done so that if an earthquake occurs the building does not suffer significant damage. The dynamic response spectrum analysis method produces the base shear and displacement of the structure. The response spectrum is a spectral plot presented as a plot or graph between periods of oscillation of a T-structure, as a function of the maximum response to a certain attenuation rate and seismic load. This study aims to determine a structural response with 3D modeling on a hospital structure in the city of Solo. The study was conducted to determine the effect of the earthquake on the performance of the structure which was analyzed with reference to the regulations of SNI 03-1726-2012 and SNI 03-1726-2019. The modeled building consists of floor slabs, beams and columns, each of which is structurally load refers to the regulations of SNI 1726-2012 and SNI 03-1726-2019 as a comparison which one is more effective. The results obtained from the use of SNI 03-1726-2012 on building structures have better safety performance when compared to analysis with SNI 03-1726-2019.
Laboratory Tests of the Area of Head Joints and Bed Joints Increase the Diagonal Shear Stress of Brick Walls Marwahyudi, Marwahyudi; Rifai, Muhammad Dian; Ahwan, Ahwan
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.14938

Abstract

The strength of a brick wall is influenced by the failure of the mortar bond and the resistance of the bad joint and head joint when carrying the force. The wider the head joint and bad joint areas result in a wider bonded area which increases the diagonal shear strength of the wall. Residential walls that have increased ability to withstand diagonal shear forces will be more stable when subjected to earthquake lateral forces. This research formulates that the wider the connecting area of the body and head joint, the higher the diagonal shear strength. The test was carried out by making a square test object measuring 60 x 60 cm. then pressure is applied in the diagonal direction. At the time of setting up the test object is done carefully and thoroughly. The test object is positioned perpendicular to the diagonal direction. The test object is placed absolutely perpendicular and is given a load until it is completely damaged. Loading method by providing a force that increases regularly until the structure experiences a complete failure. The bonded area in each brick shape is measured and compared with the results of the diagonal shear strength. This value is analyzed to obtain the effect on the diagonal shear strength. The percentage effect of each brick shape is compared and the results are analyzed. The results of the analysis are to obtain justification whether the area of the bad joint and head joint affects the diagonal shear strength. The novelty of this research is to obtain several brick designs that increase the strength of the diagonal shear stress. Tests show that the greater the area of the head joint, the greater the value of the diagonal shear stress.
Compressive Strength and Water Absorption of Batako Made from Additional Plastic Waste of Polyethylene Terephthalate (PET) Pratama, Romero Adi; Devi, Rida Handiana; Marwahyudi, Marwahyudi; Haryono, Yusuf Ramadhan
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18890

Abstract

Plastic has become an inseparable material from human daily life. Plastic waste has properties that are very difficult to decompose which has a negative impact on the environment, which has become a serious problem in the global context. One alternative for dealing with plastic waste that can be applied in the world of civil engineering is by reusing plastic waste as aggregate in making bricks. This research aims to determine the effect of using polyethylene terephthalate (PET) plastic waste as a partial substitute for fine aggregate in making bricks on compressive strength and water absorption. In this research, variations in the use of PET plastic waste were 0%, 5%, 10% and 15%, referring to SNI-03-0349-1989. Compressive strength tests have respective values ​​of 7.5 Mpa, 6.3 Mpa, 6.2 Mpa, and 5.7 Mpa. In the water absorption test, the respective values ​​were 4%, 4.3%, 4.7% and 7%. Adding too much plastic to the brick mixture proved to be ineffective on the compressive strength of the brick. This means that the mortar and PET plastic on the bricks cannot interlock with each other.
PEMANFAATAN SAMPAH BOTOL KACA MENJADI KARYA SENI GUNA MENINGKATKAN KREATIVITAS DALAM MENGELOLA SAMPAH Kristiana Seftianingsih, Dina; Marwahyudi, Marwahyudi
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 1 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i1.251-258

Abstract

Sampah merupakan salah satu masalah yang sering dipersoalkan oleh masyarakat yang kurang memahami pentingnya pengelolaan sampah yang baik dan benar. Masyarakat perlu dibekali pengetahuan tentang jenis sampah yang dapat dimanfaatkan dan sampah yang harus dimusnahkan. Diperlukan usaha untuk menggugah kesadaran dan kepedulian masyarakat terhadap masalah sampah di lingkungan sekitar khususnya sampah yang berbahan kaca, yaitu jenis sampah anorganik. Kegiatan pengelolaan sampah anorganik menjadi produk karya seni memberikan solusi untuk mengatasi masalah tersebut. Melalui program kegiatan pembuatan produk vas bunga dari sampah botol kaca dapat memberikan pengetahuan untuk masyarakat agar lebih kreatif dan terampil terutama dalam mendaur ulang sampah botol minuman kemasan berbahan kaca khususnya untuk warga Kampung Karangasem Condongcatur Yogyakarta. Metode yang digunakan dalam kegiatan ini adalah pelatihan dan praktik langsung membuat kreasi karya seni produk vas bunga dari sampah botol kaca. Kegiatan pelatihan ini dapat membantu mengurangi masalah pencemaran lingkungan dan dapat memberikan dampak yang baik bagi warga untuk tetap sadar diri akan kebersihan lingkungan sekitar. Salah satu manfaat dari kegiatan pelatihan ini diharapkan dapat membantu peluang usaha kreatif kepada warga untuk dapat menjual hasil produk karya seni tersebut sebagai usaha untuk meningkatkan perekonomian masyarakat.
Co-Authors abdul, ahwan Ahwan Ahwan, Ahwan Allai, Danang Yuli Arif Yulianto Arifin, Muhammad Yusuf Aski Safarizki, Hendramawat Dea Syahnas Paradita Devi, Rida Handiana Dian Muhammad Rifai, Dian Muhammad dina kristiana seftianingsih Gumilang, Pandu Dimas Haryono, Yusuf Ramadhan Hendramawat Aski Safarizki Henny Tri Hastuti Hasana Indy Rafia Listiana, Icho Dharma Tri Pratama, Romero Adi Putra, Imam Prasetyo Azhari Rifai, Muhammad Dian Safarisky, Hendramawat Aski Seftiyaningsih, Dina Kristiana Shafyna, Ganaia Laisya Slamet Widodo