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All Journal Inersia : Jurnal Teknik Sipil
Ade Sri Wahyuni
Universitas Bengkulu
Civil Engineering, Building, Construction & Architecture

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PENGARUH PENAMBAHAN SERAT BAMBU DAN PENGGANTIAN 10% AGREGAT HALUS DENGAN ABU SEKAM PADI DAN ABU CANGKANG LOKAN TERHADAP KUAT TARIK BETON Ade Sri Wahyuni; Akayzeh Dlucef; Fepy Supriani
Inersia: Jurnal Teknik Sipil Vol 5, No 2 (2013)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (637.882 KB) | DOI: 10.33369/ijts.5.2.33-40

Abstract

This study aimed to determine the effect of bamboo fiber addition and 10 % fine aggregate replacement with the mixture of Rice Husk Ash (RHA) and Sea-Shell Ash (SSA) toward the tensile strength of concrete. Bamboo fiber was used to add tensile strength in the matrix of concrete. The samples prepared were 21 cylinders, in which three samples of normal concrete were compared with 3 samples from each percentage of bamboo fiber (0.25% and 0.5%). The mixture of RHA and SSA was also divided into three different percentages i,e : 65:35 ; 50:50 and 35:65. The dimension of specimen is 15 cm in diameter and 30 cm in height. The specimen were cast and immersed in the soaking bath to be tested on day 28 in reference to the standard SK. SNI 03-2491-2002. The graph shows that, 0,5% addition of bamboo fiber with mixture of RHA and SSA 35:65, has the higher tensile strength than normal concrete (16%).
PENGARUH VARIASI PERSENTASE ABU SEKAM PADI (ASP) DAN ABU CANGKANG LOKAN(ACL) SEBAGAI PENGGANTI SEBAGIAN AGREGAT HALUS DAN SEMEN TERHADAP KUAT TEKAN MORTAR (Kajian Terhadap Adukan Mortar 1Pc : 3Ps) Junita Eka Susanti; Ade Sri Wahyuni; Elhusna Elhusna
Inersia: Jurnal Teknik Sipil Vol 7, No 1 (2015)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.677 KB) | DOI: 10.33369/ijts.7.1.1-6

Abstract

The purpose of this research is to know the influence of sea shell ash (SSA) and rice husk ash (RHA) as partial replacement of cement and sand toward the strength of mortar. The mold with dimension 50 mm x 50 mm x 50 mm were used to cast the mortar.There are 16 variation made from different percentages of RHA and SSA used.The range initial flow used was 80-100%. The result shows that the normal mortar has the highest strength of all. The decrease of mortar strength with RHA and SSA was in the range of 11.60%-59.11% in comparison with normal mortar.
PENGARUH PENAMBAHAN SERAT IJUK TERHADAP KUAT TARIK BELAH BETON DENGAN FAKTOR AIR SEMEN 0,5 Angga Ongky Perdana; Ade Sri Wahyuni; Elhusna Elhusna
Inersia: Jurnal Teknik Sipil Vol 7, No 2 (2015)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (373.654 KB) | DOI: 10.33369/ijts.7.2.7-12

Abstract

The advantages of concrete are : high in compressive strength, durable, easy to cast. The weakness of concrete is low in tensile. Palm fiber is the natural fiber which is high in tensile. This research aims to know the tensile strength of concrete with palm fiber addition. The diameter of the cylinder is 15 cm and 30 cm height. There are 4 variation in palm fiber addition i.e 2,5%, 5%, 7,5% and 10%. The concrete mix design is based on SK SNI-T-15-1990-03 with water cement ratio 0,5 and slump range between 6-10 cm. The curing process in based on SNI03-2493-2011. The test was done at the age of 28 days based on SNI 03-2491-2002. The highest value of tensile strength test is with 10% addition of palm fiber (2,667 MPa) which is 24,09% higher than normal concrete. This research shows, the palm fiber addition increase the tensile strength of concrete.
PENGARUH PROSES PENGADUKAN TANAH LIAT TERHADAP KUAT TEKAN BATA MERAH Yovanda Putra Medika; Elhusna Elhusna; Ade Sri Wahyuni
Inersia: Jurnal Teknik Sipil Vol 10, No 2 (2018)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (150.358 KB) | DOI: 10.33369/ijts.10.2.29-34

Abstract

One of the conventional brick production processes is the clay stirring process, which the red brick clay mortar mix is, done by stepping on it. This research is aimed to know the duration of stepping on the process of the clay mortar mixing to the red brick properties. The method of this research is experimental. The brick making process is done in the way that the factory does. The variation of stepping on brick dough is about 20, 25, 30, 32, 35 and 40 minutes where 32minutes is factory time. The objects of the test created on this research is 15 for normal bricks and 90 for variation bricks. The testing of the compressive strength of the brick refers to SNI 03-416-1996 and uses the Compression Machine Hand Operated with capacity 250 kN. The biggest of of the compressive strength of the brick is on stepping on brick dough in 40 minutes with 1,09 MPa. This research shows that the length of the stirring process determines the strength of the produced bricks; simply put, the longer the stirring process gets, the stronger bricks become.
Analisis Kekuatan Kolom Komposit Terbungkus Beton Berpenampang Bundar terhadap Kapasitas Tahanan Aksial dan Momen dengan Metode Beda Hingga Rizki Aidil; Mukhlis Islam; Ade Sri Wahyuni; Agustin Gunawan; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol. 16 No. 1 (2024)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.16.1.21-28

Abstract

Composite column structures can provide high strength from the combination of two or more materials with different material properties which then provide better combined properties. This research was conducted by analysing the composite column structure with finite difference method and comparing the results with CSiCol application. The results of the analysis of   the Pn and Mn interaction diagram of the finite difference method composite column when compared to the CSiCol application composite column have a maximum percentage difference for the maximum Pn value of 19.17%, the maximum Mn value of 2.90%. The difference in the Pn and Mn values of  the composite column can be corrected with a regression equation using a linear correction factor and a Polinomial correction factor, with a maximum Pn percentage difference value of 8.93% for the linear correction factor and 6.84% for the Polinomial correction factor value. Therefore, the finite difference method can be used to analyse composite columns with relatively good accuracy provided that correction factors are used.    
Co-Authors Agustin Gunawan Akayzeh Dlucef Angga Ongky Perdana Elhusna Elhusna Fepy Supriani Mukhlis Islam Rizki Aidil Yovanda Putra Medika Yuzuar Afrizal