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All Journal Inersia : Jurnal Teknik Sipil

Elhusna Elhusna

Universitas Bengkulu

Author-ID : 4277276

Civil Engineering, Building, Construction & Architecture

Published : 14 Documents Claim Missing Document

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PERBAIKAN PERILAKU KUAT TEKAN BETON AIR RAWA DENGAN METODE PENYARINGAN AIR Elhusna Elhusna; Agustin Gunawan
Inersia: Jurnal Teknik Sipil Vol 6, No 1 (2014)
Publisher : Universitas Bengkulu

Concrete building construction is easier and more economical when using local material including the water. This article is about improving swamp water by filtering it to use in concrete production. As the comparator is concrete with drinking water from The local water supply utility (PDAM) of Bengkulu. The 15 cm cubes specimens were tested at the age of 7, 14, 21, and 28 days to find out the compressive strength at different ages. The concrete was designed with water cement ratio 0.5, slump value 6-10 cm and maximum aggregate 20 mm. The casting and curing specimens were done according to SNI 03-2493-2002. The compressive strength results showed that the filtered swamp water concrete and the unfiltered one at 28th day were 98,2% dan 90,1% to the PDAM one. The trend of the compressive strength of swamp water concrete tend to decline with the increasing age. The compressive strength of swamp water concrete at age of 28th day was 89,1% lower than the strength at the age of 7th day. The filterred swamp water made the concrete compressive strength better.

KAJIAN PENAMBAHAN ABU CANGKANG SAWIT TERHADAP KUAT TEKAN BATA MERAH Deltiana Rosalia; Elhusna Elhusna; Agustin Gunawan
Inersia: Jurnal Teknik Sipil Vol 5, No 1 (2013)
Publisher : Universitas Bengkulu

This study was aimed to determine the effect of adding palm shell ash to the red brick compressive strength. Palm shell ash is pozzolanic and contains about 60% silica and when it is mixed with clay bricks, the strength become stronger. This study used two methods of treatment of the palm shell ash, oven and unoven. Bricks was made in this study using SII-0021-1978, while the red brick compressive strength was tested in this study using SNI 03-4164-1996. TheSpecimens were 146 cubes with a size of 5 cm on each side. The Variations in ash were used as an added ingredient of red brick at 0%, 4,3%, 8,6%, 12,9%, 17,2% and 21,5%. Specimens molded and dried for about 1 week and then burned in a red brick factory. The test results showed the addition of oven and unoven palm shell ash was increased the compressive strength of red brick. The addition of unoven palm shell ash was decreased the water absorption of the red brick and made the red brick lighter. The Lightest weight of the brick occurred in 8,6% of unoven palm shell ash was 12.96% of the normal one. The bigest compressive strength occured in 4,3% oven palm shell ash that was 112.82% of the normal red bricks. The smallest water absorption occurs in 8,6% of unoven palm shell ash was 18.07% of the normal red bricks.

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

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

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.

Co-Authors Ade Sri Wahyuni Agustin Gunawan Angga Ongky Perdana Deltiana Rosalia Dofi Hendro Fogi Fepy Supriani Fitri Herlina Jefri Suwandi Martin Lerry Marzon Marzon Mukhlis Islam Reizki Darmawan Rina Agustin Rudi Hartono Yovanda Putra Medika Yuzuar Afrizal

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