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All Journal Proceeding of World Conference JIIP (Jurnal Ilmiah Ilmu Pendidikan) Journal of Applied Science, Engineering, Technology, and Education
Syafwandi, Syafwandi
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Comparation Study of The Use Naftalena From Coal Tar Waste with Camper Naphtalene As Concrete Admixture Agung, Sumarno; Syafwandi, Syafwandi; Fatmawati, Adelia Rizky; Sumiyati, Sumiyati
Journal of Applied Science, Engineering, Technology, and Education Vol. 2 No. 2 (2020)
Publisher : Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (846.051 KB) | DOI: 10.35877/454RI.asci2160

Abstract

Concrete is a mixture of Portland cement or other hydraulic cement, fine aggregate, coarse aggregate, and water, with or without additives (admixture). The naphthalene superplasticizer used comes from the distillation of coal tar and a little from the rest of petroleum, but there is also camphor naphthalene. Where camphor grains contain 250-500 mg of naphthalene. Naphthalene is mostly produced from coal tar distillation, and a little from the rest of the fractionation of petroleum, by the molecular formula (C10H8) and in the form of two unified benzene rings. This compound is volatile, volatile even in the form of solids. The vapor produced is flammable. The purpose of this study was to determine the effect of the use of naphthalene from coal tar waste with camphor naphthalene as concrete admixture, and determine the effect of naphthalene from coal tar waste with camphor naphthalene on concrete toughness, density, water absorption, of concrete compressive strength. It is expected that the use of naphthalene can reduce the use of cement, and reduce water use. But it does not reduce the strength of the concrete so as to reduce costs in making concrete. The variations in the use of camphor naphthalene and coal tar naphthalene are 20%, 30%, 40%.
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.
Meningkatkan Minat Baca Anak Usia Dini dengan Menggunakan Metode Kooperatif Tipe Jigsaw di TK Pah Tsung Sitinjak, Mika; Hasugian, Deborawati; Syafwandi, Syafwandi
JIIP - Jurnal Ilmiah Ilmu Pendidikan Vol. 5 No. 9 (2022): JIIP (Jurnal Ilmiah Ilmu Pendidikan)
Publisher : STKIP Yapis Dompu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (640.506 KB) | DOI: 10.54371/jiip.v5i9.869

Abstract

Tujuan penelitian yang hendak dicapai pada penelitian ini adalah yang pertama untuk melihat minat baca kelompok B TK Pah Tsung sebelum diterapkannya metode kooperatif tipe jigsaw. Berikutnya agar dapat melihat bagaimana penerapan metode kooperatif tipe jigsaw ini dilaksanakan pada TK Pah Tsung, kemudian yang terakhir merupakan cara untuk melihat adanya peningkatan minat baca anak seusai diterapkannya metode kooperatif tipe jigsaw. Model yang dipergunakan pada penelitian ini adalah model Penelitian Tindakan Kelas (PTK) yang mengadaptasi model Arikunto dimana menggunakan dua siklus. Subjek penelitian ini ialah kelompok B TK Pah Tsung, Cengkareng-Jakarta Barat dengan jumlah 14 anak dengan menggunakan tahap pelaksanaan pembelajaran mulai dari bercakap-cakap, pembentukan kelompok asal dan kelompok ahli, diskusi kelompok ahli, penyelesaian tugas pada kelompok asal, dan yang terakhir pemberian reward kepada kelompok terbaik serta anggota kelompok terbaik. Hasil penelitian dengan menggunakan model pembelajaran kooperatif tipe jigsaw terhadap minat baca anak memberikan adanya peningkatan yang signifikan. Hal ini bisa dicermati berdasarkan data awal yang menunjukkan bahwa minat baca anak berada pada kategori kurang setelah diberikan stimulus pada siklus I serta siklus II minat baca anak meningkat menjadi 79% dengan kategori baik berdasarkan hasil penelitian ini dapat disimpulkan bahwa penerapan model pembelajaran kooperatif tipe jigsaw dapat meningkatkan minat baca anak.
Upaya Menumbuhkan Kesiapan Membaca Permulaan melalui Metode (MEMESYA) Menyanyi dan Mengucap Syair Peserta Didik Kelompok A2 TK Negeri Pembina Tingkat Nasional Kastanja, Johana; Syafwandi, Syafwandi
JIIP - Jurnal Ilmiah Ilmu Pendidikan Vol. 6 No. 3 (2023): JIIP (Jurnal Ilmiah Ilmu Pendidikan)
Publisher : STKIP Yapis Dompu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (228.28 KB) | DOI: 10.54371/jiip.v6i3.1706

Abstract

Tujuan yang dicapai dalam penelitian ini adalah untuk menumbuhkan Kesiapan membaca permulaan melalui metode Menyanyi dan mengucap syair Di TK Negeri Pembina Tingkat Nasional. Penelitian ini merupakan penelitian tindakan kelas (PTK). Populasinya adalah anak kelompok A2 berjumlah 16 anak terdiri dari 9 anak perempuan dan 7 anak laki-laki. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah melalui observasi, wawancara, dan dokumentasi. Bahwa menyanyi dan mengucap syair dapat menumbuhkan minat membaca permulaan.  Hal ini dapat di buktikan dari hasil observasi sebelum tindakan diperoleh kesiapan membaca permulaan sebesar 35, 29 % pada pelaksanaan siklus II meningkat sebesar 82,35 %. proses kegiatan menyanyi dan mengucap syair sangat di sukai anak-kanak karena mudah di terapkan dan sangat sederhana untuk kelompok usia 4- 5 tahun. Melalui kegiatan menyanyi dan mengucap Syair anak dapat menunjukan rasa keingingin tahuan dalam minat baca permulaan dimana Anak dapat berulang-ulang dapat mengucapkan kosa baru dalam lagu maupun syair Mengelompokan kata-kata yang sama maupun menyanyi dan mengucap syair dengan ekspresi bervariasi. Kegiatan-kegiatan tersebut di lakukan sesuai minat anak. Dengan demikian berdasarkan hasil analisis data di atas menunjukan bahwa metode menyanyi dan mengucap syair dapat menumbuhkan kesiapan baca permulaan anak Kelompok A2 di TK Negeri Pembina Tingkat Nasional.
Co-Authors Agung, Sumarno Arga, Kevin Budi Susetyo Fatmawati, Adelia Rizky Fatoni, Adrian Hasugian, Deborawati Kastanja, Johana Sitinjak, Mika Sulistyawan, Latif SUMIYATI SUMIYATI