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All Journal Turbo : Jurnal Program Studi Teknik Mesin RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi Inersia : Jurnal Teknik Sipil RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi

Afrizal, Yuzuar

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Author-ID : 1208944

Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Environmental Science Mechanical Engineering

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PENGARUH PENGGANTIAN SEBAGIAN SEMEN DENGAN ABU TERBANG (FLY ASH) DAN ABU CANGKANG LOKAN TERHADAP KUAT TEKAN PAVING BLOCK Marwan, Marwan; Supriani, Fepy; Afrizal, Yuzuar
Inersia: Jurnal Teknik Sipil Vol. 9 No. 1 (2017)
Publisher : Universitas Bengkulu

Paving block is used to fill the needs of surface pavement. This research uses waste of sea shell ash and fly ash as cement substitute material in the manufacture of paving blocks. Sea shell ash and fly ash containing calcium oxide (CaO) and silica oxide (SiO) that can replace and strengthen the chemical composition of cement. Variations of replacement much as 2.5%, 5%, 7.5% and 10% compared to normal compressive strength of the paving block (0%). Test specimen numbered 75 samples of rectangular with a length of 20 cm, width 10 cm and a thickness of 6 cm. Manufacture of paving blocks using conventional construction methods. The results of compressive strength testing of the age of 7 days, 14 days and 28 days for any 2 variations on the variations increase to 7.5% and down 10%. The results of the compressive strength largest average variation occurs in the replacement of 7.5% ie at the age of 7 days of 31.19 MPa, aged 14 days amounted to 33.55 MPa and 28 days amounted to 34.74 MPa. The percentage increase was highest compressive strength at 28 days with an increase of 23.19%.

PENGARUH PENAMBAHAN SERAT KULIT PINANG DAN SERBUK KAYU TERHADAP KUAT TARIK BELAH BETON (Kajian Terhadap Ukuran Agregat Maksimal 10 mm) Hasanah, Era Rizky; Gunawan, Agustin; Afrizal, Yuzuar
Inersia: Jurnal Teknik Sipil Vol. 9 No. 1 (2017)
Publisher : Universitas Bengkulu

Concrete has a high compressive strength, but it is low to tensile strength. The pinang skin fiber and wood powderuse to increase the tensile strength. The purpose of this research is to know the effect of addition toward tensile strength and addition percentage variation in concrete that will get the highest tensile strength.The cylindrical specimens with size of 30 cm high and 15 cm diameter to 20 specimens, they are 4 sample of normal concrete and 16 sample of variation oncrete. The addition of pinang skin fiber and wood powder with variation of 0.25%, 0.5%, 0.75%, and 1% of the weight volume of the specimen with used 50% pinang skin fiber and 50% wood powder.The mixture of concrete uses water cement ratioof 0.5 and 60-100 mm slump.The test specimen is immersed for 26 days and the concrete tensile strength test conducted after the concrete at 28 days adding 7 days for drying.The result of this research shows that the variation concrete of 0.25% and 0.5% have increased of tensile strength than the normal concrete as 12.272% and 4.369%. Beside that for the variation concrete of 0.75% and 1% have decreased as 5.044% and 11.929%. The increase of tensile strength value of optimal concrete is found in variation 0.25% that is 12.272% from normal concrete.

PENGARUH PENAMBAHAN ARANG BATOK KELAPA TERHADAP KUAT TEKAN MORTAR Sihombing, Adi Putra; Afrizal, Yuzuar; Gunawan, Agustin
Inersia: Jurnal Teknik Sipil Vol. 10 No. 1 (2018)
Publisher : Universitas Bengkulu

Mortar is a mixture of adhesives (portland and lime cement), sand and water with certain compositions. Use of adhesive materials on building construction in general still use portland cement, but in terms of portland cement costs are required a greater cost. This study aims to determine the behavior of the compressive strength of mortar using Coconut Shell Charcoal (CCS) as a substitute for cement. The method of manufacture and testing of mortar compressive strength refers to SNI 03-6825-2002 with mortar 1Pc: 3Ps mortar. Range of initial flow values used is 105% - 115%. CCS used is pass No. 200 which utilizes combustion results from coconut shells. Variations of mortar test specimens were 0%, 2.5%, 5%, 7.5%, 10% and 12.5% respectively each variation had 10 sample specimens. Test sample was immersed for 27 days and compressive strength mortar test was performed at 28 days. Value compressive strength of mortar on variations of 0%, 2.5%, 5%, 7.5%, 10%, 12.5% are 25.11 MPa, 25.65 MPa, 26.07 MPa,27.00 MPa, 26.40 MPa and 25.98 MPa. The highest increase of mortar compressive value was variation of 7.5% by 7.51%.

MORTAR SEMEN ABU DAUN PINUS DAN ABU BATA MERAH Elhusna, Elhusna; Afrizal, Yuzuar; Sofia, Halimatus
Inersia: Jurnal Teknik Sipil Vol. 11 No. 1 (2019)
Publisher : Universitas Bengkulu

his article is a report research of mortar with 10% Pine leaf ash (PLA) and 5 variations of red brick ash (RBA). The mortar is a mixture of fine sand, water, and adhesive material with proportion of cement and fine sand is 1 dan 3. RBA was added up to 50% of cement with 10% addition for each variation. Both of the ashes were added base on the weight volume of cement of normal mortar. The normal mortar is the mortar without the ashes. The initial flow of themortar is 105%-115%. The 5 cm mortar cubes were made to test the compressive strength and the absorbtion. The tests were done according to SNI 03-6825-2002 and SNI 15-2049-2004 when the speciments age is 28 days. The cube speciments were taken out of the water sink a day earlier. The highest compressive strength is 22,4% higher than the normal mortar come out ofthe PLA mortar without RBA. The strength of the PLA and 10% RBA mortar is 4,4% higher than the normal one and 18% lower then the PLA mortar without the RBA. The lowest mortar absorbtion (11,68%) belongs to PLA mortar with 10% RBA. The research result shows that the absorbtion and the compressive strength of the mortar isnot always inversely propotional.

PENGARUH VARIASI PENGGUNAAN ABU AMPAS TEBU (AAT) DAN ABU BATU (AB) SEBAGAI BAHAN PENGGANTI SEBAGIAN SEMEN TERHADAP KUAT TEKAN MORTAR Sati, Rara Ayu; Supriani, Fepy; Afrizal, Yuzuar
Inersia: Jurnal Teknik Sipil Vol. 11 No. 1 (2019)
Publisher : Universitas Bengkulu

Bagasse ash and stone ash are materials that have some elements that fimilar to cement elements. Bagasse ash is a waste that has not been utilized by community. Stone ash is a waste of stone crusher whose utilization in building structures is still lacking. This research was aimed to know compressive strength of the mortar which use bagasse ash and stone ash as a partial substitute of cement. The method of casting and compressive strength test of the mortar referred to SNI 03-6825-2002. The total of mortar cubes was 128 specimens with dimensions of 50 mm x 50 mm x 50 mm. Variations of bagasse ash and stone ash used were 5%, 10%, 15%, 20% and 25% of the weight of cement. The range of initial flow values used are 105%-115% (SNI 03-6882-2002). Mortar cubes cured for 27 days and test of mortar was conducted at 28th days. The value of mortar compressive strength variation of bagasse ash decrease from normal mortar compressive strength with a decrease respectively of 0.62%, 2.14%, 7.33%, 7.50% dan 9.53%. Compressive strengths of mortar with stone ash is increases from normal mortar in variations 5%, 10% and 15% with the percentages of 4.66%, 3.41% and 2.38% respectively, while in the variation of 20% and 25% is decreases. Compressive strength of mortar with mixture bagasse ash and stone ash reduce from normal mortar with a decrease of 0.08%, 1.04%, 5.67%, 8.06% dan 15.12% respectively.

PENGARUH PEMANFAATAN ABU PECAHAN TERUMBU KARANG DAN ABU SEKAM PADI SEBAGAI PENGGANTI SEMEN TERHADAP KUAT TEKAN BETON Afrizal, Yuzuar; Ramahayati, Nuzhi; Islam, Mukhlis
Inersia: Jurnal Teknik Sipil Vol. 11 No. 2 (2019)
Publisher : Universitas Bengkulu

Portland cement is a relatively expensive type of cement when used on constructions requiring simple requirements. Local material utilization using ash fragments of coral reefs and rice husk ash is one of the solutions. The objectives of this study is to determine the value of concrete compressive strength in each variation of cement replacement used were 2.5%, 5%, 7.5% and 10%, each variation consists of 70% ash fragment of coral reefs and 30% rice husk ash from the volume of cement used. The cube specimen with a size of (15x15x15) cm as many as 20 specimen were prepared. Concrete mixture according to SNI 03-2834-2000 used 0.5 cement water ratio and 60-100 mm of slump. The result of the compressive strength of concrete variation every percentage increase has increased and decreased from the result of the normal concrete compressive strength of 368.24 kg/cm2. Maximum increase occurred in the concrete compressive strength variation 7.5% of 384.76 kg/cm2 and decreased on the concrete compressive strength variation 10% of 367.40 kg/cm2.

PENGARUH PENGGUNAAN ABU SABUT KELAPA SAWIT SEBAGAI BAHAN PENAMBAH SEMEN TERHADAP KUAT TEKAN PAVING BLOCK gunawan, agustin; abimanyu, febriyan; afrizal, yuzuar
Inersia: Jurnal Teknik Sipil Vol. 12 No. 1 (2020)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.12.1.12-17

The research is motivated by the large amount of untreated oil palm industrial waste, with a silica contet. This research was aimed to find the compressive strengh of paving block that use oil palm fiber ash as the added material to cement. This research method was experimental. The paving block making prosess was done in the way which the factory did. The specimens made had a size of 20 cm x 10 cm x 6 cm with a ratio of 1 cement : 3 sand. The variations of the ash addition were consecutively 0%, 2,5%, 5%, 7,5%, 10%, 12,5% and 15% to the volume of cement. The total number of specimens was 35, with 5 pieces for each variation. Water requirement in each mixture referred to SNI 03-6882-2002. Paving block was formed manually, soaked for 12 days, then at the age of 13 days paving block was cut into cubes with 5 cm on each side and tested for compressive strength at the age of 14 days. The results of the average compressive strength of paving block in each variation were consecutively 15,13 MPa, 15,22 MPa, 15,78 MPa, 16,44 Mpa, 16,53 MPa, 13,77 MPa and 10,37 MPa. The highest value of compressive strength occurred on the addition of 10% which was equal to 16,53 MPa (increased by 9,25% from the normal paving block (variation of 0%) and the largest decrease occurred on the variation of 15% (-31,51% from the normal paving block). Keywords : paving block, compressive strength, oil palm fiber ash

PENGARUH PENGGUNAAN ABU SABUT KELAPA SAWIT SEBAGAI BAHAN PENGGANTI SEBAGIAN SEMEN TERHADAP KUAT TEKAN PAVING BLOCK firdaus, wahyu; afrizal, yuzuar; gunawan, agustin
Inersia: Jurnal Teknik Sipil Vol. 12 No. 2 (2020)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.12.2.69-74

The Oil palm fiber ash has a silica content of 59.1% which make it possible as a partial replacement for cement. This research was aimed to determine the effect of oil palm fiber ash as a partial replacement of cement to compressive strength of paving block. The specimens was made with a size of 20 cm x 10 cm x 6 cm and used a ratio of 1 cement: 3 sand with the variations of the substitution of 0%, 2.5%, 5%, 7.5%, 10%, 12.5% and 15% of the volume cement. The water requirement used the initial flow test according to SNI 03-6882-2002 with each variation had the same amount of water. Specimens printed were soaked in a soaking tub at the age of 1 day for 12 days, then cut into cubes of 5 cm all side using a grinder. The testing of the compressive strength was done at the age of 14 days. Results of the average compressive strength in variations of 0%, 2.5%, 5%, 7.5%, 10%, 12.5%, 15% were respectively 15,13 MPa, 15,36 MPa, 16,02 MPa, 12,97 MPa, 12,16 MPa, 10.00 MPa and 8.01 MPa. The test results showed that the highest increase occurred on the replacement variation of 5% (5.85% from normal paving block) and the maximum decrease occurred on the replacement variation of 15% which was equal to - 47.09% from the normal paving block. The results of the research indicate that the partial replacement of cement with oil palm fiber ash above 5% of the cement volume decreased the compressive strength of paving block. Keywords : oil palm fiber ash, compressive strength, paving block.

PENGARUH PENAMBAHAN ABU SEKAM PADI TERHADAP KUAT TEKAN MORTAR Pascasari, Auliarizky; Wahyuni, Ade Sri; Islam, Mukhlis; Gunawan, Agustin; Afrizal, Yuzuar
Inersia: Jurnal Teknik Sipil Vol. 13 No. 2 (2021)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.13.2.84-88

The purpose of this research is to know the comparison of compressive strength mortar with additional material rice husk ash to normal mortar. Rice husk ash used has been burned at high temperatures above 400°C. The percentages of rice husk ash used are 6%, 9%, 12%, and 15% with 7 samples in each variations. The total of mortar cubes are 105 pieces sized 50mm x 50mm x 50mm. The range of initial flow values are used 105%-115% (SNI 03-6882-2002). The test specimen was immersed for 13, 20, and 27 days and mortar compressive strength test was conducted at the age of 14, 21, and 28 days. The highest compressive strength occurred at 9% variation with an average compressive strength value of 13,24 MPa, with a percentage increase of 10,15% from normal mortar. The lowest compressive strength occurred at 6% variation with an average compressive strength value of 11,22 MPa, with percentage decrease of 6,66% from normal mortar. The result shows that the use of rice husk ash with variation 9% and 12% produce higher compressive strength than normal mortar.

PENGARUH PENGGUNAAN ABU TERBANG (FLY ASH) SEBAGAI BAHAN TAMBAH TERHADAP KUAT TEKAN MORTAR Azizah, Titanya; Wahyuni, Ade Sri; Islam, Mukhlis; Gunawan, Agustin; Afrizal, Yuzuar
Inersia: Jurnal Teknik Sipil Vol. 14 No. 1 (2022)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.14.1.28-34

Mortar is material used in non-structural elements. The increasing of quality of the mortar can be obtained by adding other alternative materials to its constituent materials. The materials that have pozzolan characteristic can increase the compressive strength of the mortar. Fly ash has a pozzolan characteristic and contains silica so that it can be used as an additive to cement. This study aims to know the compressive strength of mortar by using fly ash as the additional material of cement with the ratio of cement to fine agregate were 1pc : 3ps on 14, 21, and 28 days. The sample of the mortar is a cuboid sized 50mm x 50mm x 50mm. The variations of fly ash used were 5%, 10%, 15%, and 20% with 7 samples in each variations. The range of initial flow values was between 105%-115% (SNI 03-6882-2002). The biggest compressive strength value for normal mortar is 11.15 MPa and the biggest compressive strength for the variation of mortar is 14.43 MPa at 15% variation at 28 days. The percentage increase in the compressive strength of the mortar is 29,48% from normal mortar.

Co-Authors abimanyu, febriyan Azizah, Titanya CAHAYA, TIARA Elhusna, Elhusna FA, A. Sofwan Fadilah, M. Hafidz firdaus, wahyu Gunawan, Agustin Harahap, Abeng Andhika Pratama Hasanah, Era Rizky Hendri Hestiawan Islam, Mukhlis Khairul Amri Marwan Marwan Pascasari, Auliarizky Ramahayati, Nuzhi Riko Riko Sati, Rara Ayu Sihombing, Adi Putra Sitinjak, Heryanto Sofia, Halimatus Supriani, Fepy Wahyuni, Ade Sri

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