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EVALUASI STABILITAS BENDUNG TETAP DAERAH IRIGASI KERASAAN DESA BAH JAMBI KECAMATAN JAWA MARAJAH KABUPATEN SIMALUNGUN Nababan, Fransiskus Dwi Fayer; Sari, Kartika Indah; Hendarmin, Hendarmin
Buletin Utama Teknik Vol 19, No 3 (2024): Edisi Mei
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/but.v19i3.9869

Abstract

Sebuah desa yang terletak di Kecamatan Jawa Marajah, Simalungun bernama Bah Jambi mempunyai sebuah bendungan irigasi yang dibangun sejak tahun 1986 untuk sarana irigasi lahan pertanian sekelilingnya ketika musim kemarau tiba dengan cara meningkatkan elevasi muka air sungai Bah Bolon. Tujuan dilakukannya penelitian ini ialah menentukan seberapa besar gaya gempa, tekanan tanah, uplift, tekanan hisrostatis dan lumpur, serta gaya berat dari bendung irigasi ini agar tetap aman dari gaya gelincir dan guling. Studi ini bertujuan untuk megetahui  angka stabilitas bendung dengan metode yang digunakan adalah Kriteria Perencanaan Irigasi.  Nilai stabilitas pada saat kondisi air normal yang meliputi stabilitas atas piping (erosi bawah tanah), tegangan atau daya dukung tanah, eksentrisitas pembebanan, stabilitas terhadap geser dan guling. Selain itu juga menetapkan besaran stabilitas saat air dalam keadaan banjir yang meliputi stabilitas atas piping (erosi bawah tanah), tegangan atau daya dukung tanah, eksentrisitas pembebanan, stabilitas terhadap geser dan gulingmemenuhi syarat terhadap nilai stabilitas bendung.
ANALISIS DAYA DUKUNG PONDASI TIANG PANCANG MENGGUNAKAN DATA SONDIR DAN SPT PADA PEMBANGUNAN GEDUNG FAKULTAS ILMU KESEHATAN UNIVERSITAS ISLAM NEGERI SYARIF HIDAYATULLAH JAKARTA, CIPUTAT TIMUR, TANGERANG SELATAN, BANTEN Simarmata, Pahala; Sari, Kartika Indah
Buletin Utama Teknik Vol 19, No 1 (2023): Edisi September
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/but.v19i1.7927

Abstract

Pembangunan Gedung Fakultas Ilmu Kesehatan Universitas Islam Negeri Syarif Hidayatullah Jakarta berlokasi di Jl. Kertamukti, Banten menggunakan struktur bangunan bertingkat. Oleh karena itu, perlu dilakukan analisa dan perhitungan daya dukung tiang pancang dari hasil CPT dan SPT. Perhitungan daya dukung tiang pancang dilakukan menggunakan metode Meyerhof untuk data CPT dan SPT dan metode Aoki De Alencar untuk data CPT dengan variasi diameter tiang 30 cm dan 40 cm. Sedangkan perhitungan daya dukung tiang kelompok menggunakan metode Converse-Labarre dari hasil metode Meyerhof untuk data CPT dan SPT dan metode Aoki de Alencar untuk data CPT dengan diameter 30 cm dan 40 cm. Hasil daya dukung terbesar adalah metode Meyerhof SPT diameter 30 cm = 155,091 ton, 40 cm = 272,445 ton dan hasil daya dukung terkecil adalah metode Aoki de Alencar CPT diameter 30 cm = 24,098 ton, 40 cm = 38,71 ton. Hasil daya dukung izin tiang kelompok metode Meyerhof CPT diameter tiang 30 cm = 134,09 ton, jumlah = 2 tiang, 40 cm = 217,550 ton, jumlah = 2 tiang, untuk SPT diameter 30 cm = 152,144 ton, jumlah = 2 tiang, 40 cm = 265,638 ton, jumlah = 2 tiang, dan Aoki de Alencar diameter 30 cm = 304,288 ton, jumlah = 2 tiang, 40 cm = 531,267 ton, jumlah = 2 tiang. Metode Meyerhof berdasarkan data SPT yang mempunyai daya dukung yang paling besar diantara metode Meyerhoff CPT dan metode Aoki de Alencar.
Kajian Kuat Tekan Beton dengan Penambahan Zat Polymer Sebagai Bahan Pengisi Agregat Terhadap Mutu Beton K-300 (25 MPa) Siahaan, Desri Yuniarso; Nusa, Ahmad Bima; Dirgantara, Rahmat; Hanova, Yudha; Sari, Kartika Indah
AKSIOMA : Jurnal Sains Ekonomi dan Edukasi Vol. 2 No. 2 (2025): AKSIOMA : Jurnal Sains, Ekonomi dan Edukasi
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/aksioma.v2i2.902

Abstract

Concrete has now become one of the main materials in buildings that are very important to meet the needs of civil buildings. In various infrastructure buildings in the world, concrete made using portland cement is the biggest material that is most widely used compared to other materials such as steel, wood or bamboo. The concrete industry is the world's largest user of natural resources. Hardened concrete is a combined material consisting of coarse aggregate, fine aggregate, cement and admixture or additives if needed. One way is to replace one of the basic ingredients for making concrete with polymer. A polymer is a long molecule containing chains of atoms linked together through covalent bonds formed through a polymerization process in which monomer molecules react together chemically to form a linear chain or three-dimensional network of polymer chains. The type of polymer used in this test is a recycled polypropylene polymer (plastic pellet). The purpose of this study was to determine the compressive strength of concrete and to determine the slump value of concrete. The effect of adding polymer with variations of 0%, 2% and 4% with a design concrete quality of 25 MPa at the age of 7 days and 28 days. 28 days of concrete reached 25.27 MPa. After researching the effect of adding polymer to the concrete mix can increase the compressive strength of concrete because the test results reach the design quality.
Differences in handgrip strength and tooth loss between cognitively normal and impaired elderly: cross-sectional study Syamila, Rahmi Hasna; Sari, Kartika Indah; Balafif, Felisha Febriane; Gondowidjojo, Yolanda Dwiutami; Ong, Paulus Anam
Padjadjaran Journal of Dentistry Vol 37, No 3 (2025): November 2025
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol37no3.62743

Abstract

Introduction: The aging process in elderly individuals triggers changes in the brain that can lead to a decline in cognitive function, impacting quality of life. Age-related physiological changes affect the muscles around the oral cavity and the musculoskeletal system. These changes manifest as a decrease in the mass and strength of the chewing muscles. Tooth loss further exacerbates the ability to chew. This study aims to analyze differences in handgrip strength and tooth loss between cognitively normal and impaired elderly. Methods: Observational analytic with cross-sectional design using the Mann-Whitney comparative significance test and independent sample t-test with a significance level of p<0.05 was conducted. A purposive sampling technique was applied to a population residing in Dago Village, Bandung. The inclusion criteria included elderly individuals aged ≥60 years, both male and female, able to communicate effectively, and willing to participate in the study by signing an informed consent form. Cognitive function was assessed through interviews using the Mini Mental State Examination (MMSE), along with an examination of the number of missing teeth and hand grip strength measured with the Electronic Hand Dynamometer (Camry EH101). Analyzed data used the Mann–Whitney test. Results: A total of 34 subjects met the inclusion criteria from the total population of 71 older adults examined. The independent sample t-test for handgrip strength showed that elderly individuals with cognitive impairment had weaker handgrip strength (mean=14.250, SD=5.0285) compared to cognitively normal individuals (mean=22.281, SD=6.0204), with a p-value of 0.0001 (p<0.05). The Mann–Whitney test results for tooth loss indicated that elderly individuals with cognitive impairment experienced greater tooth loss (range=11–32 teeth, mean=20.78) compared to cognitively normal individuals (range=0–10 teeth, mean=13.81), with a p-value of 0.041 (p<0.05). Conclusion: There are differences in hand grip strength and tooth loss were found between cognitively normal and impaired elderly.
ANALISIS DAYA DUKUNG PONDASI BORED PILE BERDASARKAN DATA SONDIR PADA PROYEK PEMBANGUNAN TRIBUN PENONTON SELATAN STADION MINI PANCING MEDAN SUMATERA UTARA Khairunnisa, Khairunnisa; Sari, Kartika Indah
Jurnal Teknik Sipil Vol 4, No 2 (2025): Edisi Desember
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jtsip.v4i2.12835

Abstract

Penelitian ini menganalisis daya dukung pondasi BoredPile pada proyek pembangunan Tribun Penonton Selatan Stadion Mini Pancing, Medan, berdasarkan data Cone Penetration Test (CPT).Metode analisis yang digunakan meliputi Aoki de Alencar, Price Wardle, dan Meyerhoff, serta evaluasi penurunan pondasi menggunakan metode Poulos Davis (1974) yang dibandingkan dengan hasil uji lapangan Pile Driving Analyzer (PDA).Data diperoleh dari dua titik uji sondir, dengan kedalaman hingga mencapai lapisan tanah keras.Hasil perhitungan menunjukkan daya dukung izin pada titik S1 sebesar 35,639 ton (Aoki de Alencar) dan 25,32 ton (Price Wardle), sedangkan titik S2 sebesar 36,816 ton (Aoki de Alencar) dan 25,69 ton(Price Wardle).Metode Meyerhoff memberikan hasil yang lebih tinggi dari kedua metode tersebut.Analisis penurunan dengan Poulos Davis menghasilkan nilai teoritis 9,59 mm, sedangkan hasil uji PDA di lapangan sebesar 14,22 mm, menunjukkan terdapat selisih dari hasil dilapangan dengan metode teoritisnya.Temuan ini membuktikan bahwa metode Aoki de Alencar dan Price Wardle efektif untuk kondisi tanah di lokasi penelitian.Hasil studi dapat menjadi acuan bagi perencana dalam merancang pondasi Bored Pile yang efisien, aman, dan sesuai dengan karakteristik tanah.
PERBANDINGAN PENYERAPAN AIR DAN KUAT TEKAN BETON NORMAL BERLAPIS TERHADAP BETON BERLAPIS DENGAN ABU AMPAS TEBU SEBAGAI BAHAN PENGISI AGREGAT HALUS PADA KAMAR MANDI GEDUNG BERTINGKAT Rangkuti, Gemala Amira; Dirgantara, Rahmat; Sari, Kartika Indah; Chairina, Ellyza
Jurnal Teknik Sipil Vol 4, No 2 (2025): Edisi Desember
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jtsip.v4i2.12836

Abstract

The abundant availability of bagas seashin North Sumatra open supopport unities for it suseasanenv iron mentally friendly additive incon cretemixtures. This research aims to analyse the effect of bagas seashasapartial replace ment for fine aggregate on the compressive strength hand water absorption of layered concrete for bath room sinmulti-storey buildings. Test objects were made with variation sofbagas seash of 0% (normal), 10%, and 20%, then testedat the ages of 14 and 28 days. There search results showed that at 28 days, the compressive strength of normallayered concrete and concrete with 10% bagas seash was the same, namely 33.33 MPa, where as with the 20% variation it decreased to 30.27 MPa (down 9.18%). Interms of water absorption, layered normal concrete shows the lowest value of 0.65%, while the 10% and 20% mixtures are 0.86% and 0.87% respectively. Thus, the optimum addition of bagas seashis recommended at 10% to maintains table concrete quality.
Malnutrition and oral Health in Elderly: a Narrative Review Anggraini, Jamas Ari; Najmi, Nuroh; Rafisa, Anggun; Febriane Balafif, Felisa; Sari, Kartika Indah
Jurnal EduHealth Vol. 16 No. 04 (2025): Jurnal EduHealt, Edition October-December , 2025
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The aging process is generally defined as the accumulation of various changes that occur in cells and tissues as we age. According to the World Health Organization (WHO), an elderly individual is defined as a person who has reached or surpassed 60 years of age. Changes in conditions experienced by the elderly are not only physical changes, but also social and psychological changes. These changes influence each other and interact with other factors, which have an impact on the health conditions of the elderly, including appetite regulation which indirectly also has an impact on nutritional status in elderly. As we already know, nutrition is an important component for the elderly that affects the entire aging process and the general health condition of the elderly, including their oral health. Oral health and nutrition themselves have a multidirectional relationship. This relationship is manifested in the oral cavity, including plaque formation, dental caries, periodontal disease and other oral conditions. It is imperative for clinicians to comprehend the interplay between oral health and nutrition, as this knowledge is crucial for the effective management of elderly patients. This article focuses on the relationship between nutrition an oral health and its impact on older adults.