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Pengaruh Fire Proofing pada Balok Beton Pasca Bakar Sudibyo, Gathot Heri; Setyo H., Nor Intang
Dinamika Rekayasa Vol 6, No 2 (2010): Dinamika Rekayasa - Agustus 2010
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2010.6.2.37

Problem of buildingfire, which is often happened, cannot be avoided. Burning that happened generally reach temperatureÂ of above 200oC, what of course influence concrete strength. Concrete material will become brittle, spelling, and barest easyto and itsÂ strength is downhill effect of high temperature. In this research the specimens are cylinder shape of concrete and reinforced concreteÂ beams. For this type of concrete cylinder specimens were made with size of 15 cm diameter and 30 cm high, while for the typeofÂ reinforcedconcrete beam specimens were made with size of 15 cm x 20 cm x 150 cm. Each type of specimen for each variety is madeÂ of 3 repetitions. Variations in temperature used are normal temperatures, 400o C, 600o C and 800o C.The results of research showÂ that the use of fire proofing provide the value of concrete compressive strength better than the concrete without fire proofing.TheÂ fire proofing increased the compressive strength by 2.50%, 5.70% and 11.89% for temperature of 400o C, 600o C and 800o CÂ respectively. While the influence of fire proofing on the flexural strength of reinforced concrete beams at the respective temperaturesÂ are 4.99%, 23.97% and 20.55%.

KARAKTERISTIK KOMPOSIT SEMEN LIMBAH PARTIKEL BAMBU DAN SERAT AREN UNTUK BAHAN BANGUNAN Hermanto, Nor Intang Setyo; Haryanto, Yanuar; Eratodi, I Gusti Lanang Bagus
Jurnal Teknik Sipil dan Perencanaan Vol 19, No 2 (2017): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v19i2.9646

Kajian ini membahas karakteristik fisik dan mekanik komposoit semen limbah partikel bambu dan serat aren dengan variasi komposisi campuran untuk memperoleh formulasi empiris guna memprediksi sifat mekaniknya. Pembuatan dan pengujian benda uji dilakukan sesuai standar ASTM D 143 dengan 5 variasi komposisi jumlah campuran partikel bambu dan serat aren masing-masing 0%:100%; 25%:75%; 50%: 50%; 75%:25%; dan 100%: 0%; dengan kerapatan direncanakan 0,8 g/cm3. Variasi lainnya adalah ukuran limbah partikel bambu yaitu tertahan saringan 5 cm x 5 cm; 1 cm x 1 cm, 0,5 cm x 0,5 cm, dan 0,2 cm x 0,2 cm. Jumlah semen divariasikan dengan perbandingan bahan dan semen 1:2, 1:3, dan 1:4. Hasil kajian memperlihatkan bahwa perilaku sifat fisik terbaik diperoleh pada perbandingan bahan dan semen 1:4 dan ukuran partikel bambu 0,2 cm x 0,2 cm dan 0,5 cm x 0,5 cm. Kajian sifat mekanik menunjukkan tegangan lentur (MOR) balok/papan semen berkisar 4,77-6,59 MPa, dengan hasil terbesar pada komposisi balok semen campuran partikel bambu dan serat 50%:50% dengan ukuran partikel bambu 0,2 cm x 0,2 cm dan panjang serat aren 5 cm. Modulus elastisitas (MOE) balok semen tertinggi diperoleh pada campuraan partikel bambu dan serat aren 100%:0% dan ukuran partikel bambu 0,2 cm x 0,2 cm. Kandungan semen terbaik untuk MOE sebesar 2283,02 MPa didapat pada perbandingan bahan dan semen 1:3.

Pengaruh Variasisilica Fumedan Perubahan Faktor Air Semen Terhadap Modulus Elastisitas Beton Setyo H., Nor Intang
Dinamika Rekayasa Vol 1, No 1 (2005): Dinamika Rekayasa - Agustus 2005
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2005.1.1.3

The aim of this research is to know influence of addition silica fume and variation of waterÂ cement ratio (w/c), also interaction of between both to elasticity modulus of concrete.Â Independent variable in this research is variation of silica fume and water cement ratio.Â Dependent variable is compression strength and strain for result of elasticity modulus. TheÂ sample test of cylinder concrete with diameter 15 cm and high 30 cm, with the variation of w/cÂ 0,3 ; 0,35 ; 0,4 ; 0,45 ; and 0,5, and also variation of silica fume 0,5%, 10%, 15%, and 20%Â cement weight. Each treatment made by 10 samples with of volume comparison of mixerÂ concrete 1 : 1,5 : 2,5. The result of samples test carried out 28thÂ days of age obtained optimumÂ rate silica fume 9,328% with w/c 0,35 giving influence to increase of concrete elasticity modulusÂ of concrete to 4,191% of normal concrete

KARAKTERISTIK KOMPOSIT SEMEN LIMBAH PARTIKEL BAMBU DAN SERAT AREN UNTUK BAHAN BANGUNAN Hermanto, Nor Intang Setyo; Haryanto, Yanuar; Eratodi, I Gusti Lanang Bagus
Jurnal Teknik Sipil dan Perencanaan Vol 19, No 2 (2017)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v19i2.9646

Kajian ini membahas karakteristik fisik dan mekanik komposoit semen limbah partikel bambu dan serat aren dengan variasi komposisi campuran untuk memperoleh formulasi empiris guna memprediksi sifat mekaniknya. Pembuatan dan pengujian benda uji dilakukan sesuai standar ASTM D 143 dengan 5 variasi komposisi jumlah campuran partikel bambu dan serat aren masing-masing 0%:100%; 25%:75%; 50%: 50%; 75%:25%; dan 100%: 0%; dengan kerapatan direncanakan 0,8 g/cm3. Variasi lainnya adalah ukuran limbah partikel bambu yaitu tertahan saringan 5 cm x 5 cm; 1 cm x 1 cm, 0,5 cm x 0,5 cm, dan 0,2 cm x 0,2 cm. Jumlah semen divariasikan dengan perbandingan bahan dan semen 1:2, 1:3, dan 1:4. Hasil kajian memperlihatkan bahwa perilaku sifat fisik terbaik diperoleh pada perbandingan bahan dan semen 1:4 dan ukuran partikel bambu 0,2 cm x 0,2 cm dan 0,5 cm x 0,5 cm. Kajian sifat mekanik menunjukkan tegangan lentur (MOR) balok/papan semen berkisar 4,77-6,59 MPa, dengan hasil terbesar pada komposisi balok semen campuran partikel bambu dan serat 50%:50% dengan ukuran partikel bambu 0,2 cm x 0,2 cm dan panjang serat aren 5 cm. Modulus elastisitas (MOE) balok semen tertinggi diperoleh pada campuraan partikel bambu dan serat aren 100%:0% dan ukuran partikel bambu 0,2 cm x 0,2 cm. Kandungan semen terbaik untuk MOE sebesar 2283,02 MPa didapat pada perbandingan bahan dan semen 1:3.

Pemetaan Bathimetri Dan Pemodelan Dasar Danau Menggunakan Single Beam Echosounder Dani Nugroho Saputro; Hermanto, Nor Intang Setyo; Susanto, Heryawan
Siklus : Jurnal Teknik Sipil Vol. 9 No. 1 (2023)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/siklus.v9i1.11412

Danau perlu dikelola dengan baik serta dipertahankan kegunaannya karena berperan sangat penting pada pemenuhan kebutuhan air. Pemantauan, pemeliharaan serta penilaian untuk menjaga keberlangsungan eksistensi air pada danau dengan pemantauan dan pengukuran terpola. Tujuan dari penelitian ini adalah melakukan pengukuran terpola untuk mendapatkan luas kapasitas danau, model elevasi digital, kontur topografi dasar danau secara 3D. Proses pengambilan data menggunakan dua metode, Pengambilan data di darat menggunakan metode Tachymetri dan pengukuran di air dengan metode Bathymetri dilengkapi peralatan Single Beam Echosounder, yang terdiri dari peralatan GPS, Transducer dan Receiver yang telah dipasang pada perahu untuk merekam koordinat dan keaadaan topografi bawah danau secara akurat dan real-time. Proses pengolahan data menggunakan Analisis Interpolasi metode Kriging dikomparasi dengan metode Inverse Distance Weighting (IDW) dan Natural Neightbour. Pengolahan data kapasitas danau menggunakan Trapezoidal rule divalidasi dengan Simpson's rule dan Simpson's 3/8 rule. Hasil penelitian didapatkan bahwa Analisis Interpolasi dengan menggunakan metode interpolasi Kriging menghasilkan taksiran yang mendekati nilai sampel data yang diinterpolasi, sehingga menghasilkan interpolasi yang lebih halus dan tajam dibanding dengan metode Inverse Distance Weighting (IDW) dan Natural Neightbour. Analisis perhitungan volume didapatkan metode luas area danau sebesar 26.089,85 m2 dengan kapasitas tampungan danau sebesar 55.485,48 m3 dengan keesalahan relatif (relative error) sebesar 0.032%, Analisis perhitungan volume diukur pada elevasi 79,167 mdpl dengan maksimum kedalaman danau yaitu pada elevasi 74,2 mdpl.

THE EFFECT OF CALCIUM STEARATE USAGE IN SELF COMPACTING CONCRETE 20 MPA WITH PCC AND FLY ASH AS BINDERS TOWARD ON PULL OUT CAPACITY OF REINFORCEMENT Maryoto, Agus; Maulana, Ikhsan; Hermanto, Nor Intang Setyo
ASTONJADRO Vol. 11 No. 2 (2022): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v11i2.6216

Concrete is widely used for buildings because of its high compressive strength. Reinforced concrete must be able to withstand water infiltration into the concrete. This is to prevent the infiltration of corrosive ions with water that cause corrosion attacks on the reinforcement. One type of concrete that can reduce the infiltration of water into the concrete is Self Compacting Concrete (SCC). SCC generally uses a very small water cement ratio, so it can reduce water infiltration into the concrete. SCC is not enough to cover with corrosion attack significantly. The use of added calcium stearate has been shown to significantly reduce corrosion attack on concrete reinforcement. Unfortunately, the effect of calcium stearate usage on the bond strength of reinforcement and concrete has not been well studied. This study aims to determine the effect of calcium stearate on 20 MPa concrete with doses of 0, 1, 5 and 10 kg/m3 on the pull out capcity and failure pattern of the concrete. The tests carried out include the compressive strength test and the pull out capacity. The results showed that the average pull out capacity with the addition of calcium stearate 0, 1, 5, and 10 kg/m3 were 5.78, 4.08, 3.83, and 3.45 MPa, respectively. The type of failure that occurs when the maximum load is reached is a splitting failure.

Pemanfaatan Endapan Lumpur Hasil Sedimentasi Untuk Pembuatan Produk Batu Bata Interlock Bernilai Ekonomis Saputro, Dani Nugroho; Susanto, Hery Awan; Hermanto, Nor Intang Setyo; Rahmawati, Eni; Januardi, Redityo
Madani : Indonesian Journal of Civil Society Vol. 7 No. 2 (2025): Madani : Agustus 2025
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/madani.v7i2.2543

The results of the dredged sludge deposits due to sedimentation of the Jenderal Besar Soedirman reservoir are quite large and have the potential to be utilized. The problem that arises is that the sedimentation results are not immediately removed, it will disrupt several sectors, especially the power generation sector (PLTA). From this problem, an alternative emerged to utilize the dredged sludge deposits due to sedimentation into bricks that have economic value. The utilization of sludge deposits into bricks aims to reduce excessive sedimentation in the JB Soedirman sludge reservoir. If the sludge deposits are utilized properly, one of which is as a material for making Interlock bricks, it will create economic value for the community, especially in Banjarnegara, Purbalingga dan Banyumas Regency, there are many business sectors engaged in making bricks. The method used in this community service is observation and demonstration, the first is to conduct further observation studies on the nature of the dredged sludge deposits by conducting laboratory tests, from the results of the tests, information and education are provided to the business community on how to utilize sludge deposits into bricks with the right composition and high quality. It is expected that with this Community Service activity, it can overcome the problems that arise and improve the economy of brick entrepreneurs around the reservoir without having to mine or buy raw materials for production. Brick entrepreneurs are very enthusiastic about unbaked interlocking bricks, by making innovations in the brick business.

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