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All Journal RACIC : Rab Construction Research Ensiklopedia of Journal Jurnal Pustaka Paket
Umar Khatab
Sekolah Tinggi Teknologi Payakumbuh
Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Law, Crime, Criminology & Criminal Justice Social Sciences Other

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RANCANGAN BETON NORMAL FC’ 19,3 MPA MENGGUNAKAN AGREGAT HALUS DAERAH GRADASI NO.2 DENGAN CAMPURAN VARIASI AGREGAT KASAR Umar Khatab; Dina Putrisia Ningsih; Noviarti Noviarti
Ensiklopedia of Journal Vol 4, No 3 (2022): Vol 4 No. 3 Edisi 1 April 2022
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (137.79 KB) | DOI: 10.33559/eoj.v3i3.750

Abstract

The quality of an aggregate in a concrete mixture is one of the factors that affect the quality of the concrete. Geographically, Payakumbuh City and District 50 cities are passed by several rivers where the river's products are used by the local community as building material. This research uses a quantitative approach, the research method uses experiment. The results of this study found that the average compressive strength of normal fc concrete was 19.3 Mpa at the age of 14 days using coarse aggregate from Halaban river, the compressive strength value was 21.68 Mpa. The average compressive strength of normal concrete using the coarse aggregate mixture of Halaban and Bukik Limbuku river is 20.98 MPa and the average compressive strength of normal concrete using a mixture of coarse aggregate Halaban and Batang Agam river is 20.35 Mpa. The conclusion of this study is that coarse aggregate from Bukik Limbuku and Batang Agam river, although the quality of the gradation not include in the SNI standart, but after mixing the coarse aggregate from Halaban - Limbuku and Halaban - Batang Agam, the compressive strength more than fc. '19.3 Mpa.Keywords: Material, Concrete Quality, Compressive Strength, Gradation.
Pengukuran Lokasi Untuk Perencanaan Pembangunan Stadion di Tanjung Haro Sikabu-Kabu Padang Panjang Kabupaten 50 Kota Menggunakan Alat Ukur Theodolite Rini Yunita; Hanifah Asnur; Umar Khatab; Ronny Junnaidi; Ridha Sari; Arif Rizki Marsa; Arif Budiman; Lilik Suhery
Jurnal Pustaka Paket (Pusat Akses Kajian Pengabdian Komputer dan Teknik) Vol 1 No 1 (2022): Jurnal Pustaka PAKET
Publisher : Jurnal Pustaka Paket (Pusat Akses Kajian Pengabdian Komputer dan Teknik)

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Abstract

Tim pengabdian Sekolah Tinggi Teknologi Payakumbuh yang terdiri dari tim dosen dan mahasiswa melakukan pengabdian dengan agenda kegiatan ”Pengukuran Lokasi Untuk Perencanaan Pembangunan Stadion di Tanjung Haro Sikabu-Kabu Padang Panjang Kabupaten 50 Kota Menggunakan Alat Ukur Theodolite”. metode yang digunakan adalah metode pengukuran polygon untuk mendapatkan ukuran luas stadion yang akan di rencanakan. Kegiatan pengukuran ini menggunakan alat ukur theodolite yang dilakukan oleh mahasiswa teknik sipil dipandu oleh tim dosen STT Payakumbuh. Selanjutnya hasil pengukuran yang diperoleh diolah untuk mendapatkan desain gambar rancangan stadion. Sehingga dapat memudahkan masyarakat Tanjung Haro untuk merealisasikan pembangunan stadion yang direncanakan
KAJIAN SIFAT MEKANIK BATANG BAMBU DENGAN ISIAN MORTAR PADA DESAIN GEOMETRI SAMBUNGAN Astuti Masdar; Mhd. Ryan Angryanof; Muhammad Idris; Umar Khatab; Ronny Jnnnaidy; Muhammad Yazid
Racic : Rab Construction Research Vol. 11 No. 1 (2026): JUNI
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v11i1.7717

Abstract

Bamboo has become a preferred construction material to replace wood because it has superior mechanical strength and is environmentally friendly. One of the superior bamboo species is petung bamboo (Dendrocalamus asper). Petung bamboo is known for its large stem size and high strength, making it potentially used as a structural material. However, the hollow and fibrous shape of bamboo makes it prone to breaking, especially when stress concentration occurs with a small contact area at the joint. Bamboo stems can break due to uneven shrinkage and expansion. In this condition, filling is carried out in the stem cavity of the bamboo connection system, one of which is by filling with mortar. This study aims to determine the effect of the presence of mortar as a filling in the bamboo stem on the mechanical properties related to the analysis of bolt spacing in the intact bamboo connection system including shear strength and bearing strength as well as determining the value of the physical properties of bamboo in the form of water content and density. The study was conducted experimentally referring to the ISO 22157–2019 standard. The test specimens consisted of Petung bamboo with and without mortar filling as a comparison. It is hoped that the results of this study will reveal the extent to which the use of mortar as a filling in bamboo stems can improve the shear resistance and bearing strength of bamboo stems, thereby providing additional references for the design of intact bamboo joints that use mortar filling in the stems.
Co-Authors Arif Budiman Arif Rizki Marsa Dina Putrisia Ningsih Hanifah Asnur Lilik Suhery, Lilik Masdar, Astuti Mhd. Ryan Angryanof Muhammad Idris Muhammad Yazid Noviarti Noviarti Ridha Sari Rini Yunita Ronny Jnnnaidy Ronny Junnaidi