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All Journal JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang
Chrisna Djaya Mungok
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Civil Engineering, Building, Construction & Architecture

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TINJAUAN FAKTOR AIR SEMEN TERHADAP KUAT TEKAN, KUAT TARIK BELAH DAN MODULUS ELASTISITAS Febriandy, Anggi; Samsurizal, Eddy; Mungok, Chrisna Djaya
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 1, No 1 (2016): JURNAL MAHASISWA TEKNIK SIPIL UNTAN EDISI FEBRUARI 2016
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.627 KB) | DOI: 10.26418/jelast.v1i1.14430

Abstract

Faktor air semen merupakan hal terpenting didalam pembentukan beton. Beton adalah bahan bangunan yang paling banyak digunakan pada konstruksi, karena konstruksi beton mempunyai beberapa kelebihan antara lain: bahan dasar mudah diperoleh, tahan terhadap berbagai cuaca, lebih mudah dan murah dalam pelaksanaan, serta perawatannya cukup mudah. Kekuatan beton tergantung pada perbandingan air semen serta memiliki ketahanan terhadap api yang lebih unggul dibandingkan material lain, sehingga mengalami penurunan kekuatan. Tujuan dari kajian ini adalah untuk mengetahui sejauh mana tinjauan 3 kelompok benda uji dengan kelompok 1 memiliki kuat tekan rencana 40 MPa serta dengan fas 0,4. Kelompok 2 memiliki kuat tekan rencana 30MPa dengan fas 0,5. Sedangkan kelompok 3 memiliki kuat tekan rencana 20MPa dengan fas 0,6. Pada 3 kelompok ini dilakukan pengujian terhadap kuat tekan, kuat tarik  belah dan modulus elastisitas dalam campuran beton yang berbeda. Dari 3 kelompok tersebut diperoleh nilai hasil kuat tekan rata-rata, kuat tekan karakteristik, nilai kuat tarik belah rata-rata dan nilai modulus elastisitas benda uji. Jumlah benda uji sebanyak 108 benda uji berbentuk silinder dan diameter 15 cm dan tinggi 30 cm kemudian dilakukan pengujian kuat tekan, kuat tarik belah dan modulus elastisitas. Hasil pengujian menunjukkan kuat tekan rata-rata kelompok 1, 2, 3 berturut-turut 36,47MPa, 30,57MPadan 28,87MPa. Nilai kuat tekan karakteristik kelompok 1, 2 dan 3 berbeda campuran beton berturut-turut yaitu 32,09 MPa, 27,24 MPa, 19,80 MPa   Lalu untuk hasil tes pengujian kuat tarik belah rata-rata kelompok 1, 2 dan 3 berturut-turut yaitu 3,562 MPa, 3,114 MPa, 2,902 MPa. Untuk hasil pengujian modulus elastisitas rata-rata kelompok 1, 2 dan 3 berturut-turut yaitu 7810,099 MPa, 6823,594 MPa dan 6543,058 MPa.   Kata kunci : faktor air semen (fas), kuat tekan, kuat tarik belah, modulus elastisitas beton,
PEMANFAATAN TETES TEBU SEBAGAI BAHAN TAMBAH DALAM CAMPURAN BETON Ismunandar, Harri; Mungok, Chrisna Djaya; Supriyadi, Asep
Jurnal Mahasiswa Teknik Sipil Universitas Tanjungpura Vol 2, No 2 (2016): JURNAL MAHASISWA TEKNIK SIPIL EDISI JUNI 2016
Publisher : Jurnal Mahasiswa Teknik Sipil Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (975.209 KB)

Abstract

As it grows concrete in building construction are often used as a structure and can be used for other things. In the process of mixing concrete on the ground frequently arise in the form of stirring and casting a result of a reduction in the amount of water usage to improve the quality of concrete, it is necessary to use additive (additive) as a mixture of concrete mix so that more plastic that will facilitate and speed up concrete hardening foundry. Molasses is one of the waste produced by the sugar mills. Additional material is a lot of functions, such as adding strength concrete, binding time slows to consider the price. Tests conducted on the study include compressive strength, tensile strength and modulus of elasticity sides, as well as testing the temperature after casting, hardening time test / setting time by means of Vicat, shrinkage testing using a ruler and porosity testing. For testing compressive strength, tensile strength and modulus of elasticity sides using cylindrical test specimen with a diameter of 15 cm and 30 cm high. The test specimen consists of 147 cylinders for each - each variation. This research uses seven variations, normal concrete (N), normal concrete molasses plus 0.05% (0.05% TT), normal concrete molasses plus 0.4% (TT 0.4%), normal concrete plus drops cane 1% (TT 1%) and normal concrete plastiment P121R Sika plus 0.05% (0.05% CA), normal concrete plastiment P121R Sika plus 0.4% (CA 4%), and normal concrete Sika plus plastiment P121R 1% (1% CA) Results of testing the temperature after casting temperature rise by 1-3oC. The test results hardening time / setting time can take an average time of hardening of concrete during the 280 minutes. From the test results of concrete shrinkage that occurs ± 0.1 cm. The test results show that the porosity by using molasses can reduce porosity. Testing of compressive strength, tensile strength and modulus of elasticity sides obtained optimum value on the concrete admixture plus molasses. In the compressive strength of an increase of 4% compared to normal concrete (N), while the tensile strength divided by 16:51% increased compared to normal concrete (N), and the modulus of elasticity increased by 24% compared to normal concrete (N). Keywords : Molasses, plastiment P121R Sika, temperature, setting time, shrinkage
STUDI EKSPERIMEN KUAT TEKAN BETONMENGGUNAKAN SEMEN PPC DENGAN TAMBAHAN GLENIUM Yolanda, F Windy; Mungok, Chrisna Djaya; Samsurizal, Eddy
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 2, No 2 (2015): JURNAL MAHASISWA TEKNIK SIPIL UNTAN EDISI JUNI 2015
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v2i2.10860

Abstract

This paperpresents the results ofthe use ofmaterialadded glenium mixed into thenormal concrete mixing with varying levels of 0,5 litre, 0,7 litre, and 1 litre. Specimens made cylindrical size Ø 15 cmand height 30 cm.alms to determine the ratio of Increse in concrete compressive strength normal to the additional Glenium which varies using PPC cement.  This paper using Job mix formula ACI modification. The characteristics of the compressive strength of concrete age 28 days using Glenium (o,5 litre, 0,7 litre, and 1 litre) successive reach (29,66 MPa; 42,92 MPa; 27 MPa; 30,26 MPa). The result of pull apart strength test (3,55 MPa; 4,68 MPa; 4,03 MPa;4,04 MPa). And the result of modulus elasticity test (12539.21MPa;13928.36 MPa; 17481.47 MPa; 12583.67 MPa).
OPTIMASI MATERIAL TIANG PANCANG BETON MINI 20x20 DI KOTA SANGGAU Vembriarto, Stepanus Totok; Aziz, Aswandi A.; Mungok, Chrisna Djaya
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 4, No 4 (2017): JURNAL MAHASISWA TEKNIK SIPIL EDISI FEBRUARI 2017
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v4i4.20024

Abstract

Perkembangan dunia konstruksi di Kota Sanggau begitu pesat. Dalam perkembangan yang cukup pesat ini, penggunaan tiang pancang beton mini atau yang biasa dissebut mini pile menjadi pilihan utama dalam pekerjaan pembangunan konstruksi, hal ini dikarenakan tiang pancang beton mini lebih efisien dan ekonomis dalam pengerjaannya. Bahan pembentuk tiang pancang beton mini berupa  agregat kasar dan agregat halus, semen serta air. Penggunaan material pada tiang pancang beton mini ini sangat berpengaruh terhadap kekuatan tiang pancang beton mini tersebut. Tujuan dari penelitian ini adalah untuk mengetahui mutu beton sesuai rancangan campuran beton dengan menggunakan meterial yang berasal dari Kota Sanggau yaitu Quary Batu Semboja dan Quary Pasir Entakai Laut. Dari hasil penelitian yang didapat kuat tekan beton rencana adalah K-250 berdasarkan pendekatan dari hasil perhitungan stuktural dan perhitungan daya dukung mekanika tanah berdasarkan data lab, sedangkan untuk hasil pengujian kuat tekan beton K-250 didapat nilai kuat tekan beton sebesar 226,897 Kg/cm².   Kata Kunci : Tiang Pancang Mini, Perhitungan struktural, perhitungan daya dukung data lab
STUDI EKSPERIMENTAL PENGARUH PENAMBAHAN ADMIXTURE BETONMIX DENGAN MENGGUNAKAN SEMEN PPC TERHADAP KUAT TEKAN BETON Nauly, Sondy Putra; Mungok, Chrisna Djaya; Handalan, Cek Putra
Jurnal Mahasiswa Teknik Sipil Universitas Tanjungpura Vol 1, No 1 (2016): JURNAL MAHASISWA TEKNIK SIPIL UNTAN EDISI FEBRUARI 2016
Publisher : Jurnal Mahasiswa Teknik Sipil Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

As it grows concrete in building construction are often used as a structure and can be used for other things. In the process of mixing concrete on the ground frequently arise in the form of stirring and casting a result of a reduction in the amount of water usage to improve the quality of concrete, it is necessary to use additive (additive) as a mixture of concrete mix so that more plastic that will facilitate and speed up concrete hardening foundry. In this study, using a mix concrete admixture materials Betonmix, which is expected to improve the quality of the concrete compressive strength, tensile strength and modulus of elasticity sides in general and in particular to determine the change in temperature after casting, hardening time / setting time, shrinkage and porosity. Betonmix is a colorless liquid that is highly useful for improving the quality of the concrete, thus simplifying construction and produce high-quality concrete. Tests conducted on the study include compressive strength, tensile strength and modulus of elasticity sides, as well as testing the temperature after casting, hardening time test / setting time by means of Vicat, shrinkage testing using a ruler and porosity testing. For testing compressive strength, tensile strength and modulus of elasticity sides using cylindrical test specimen with a diameter of 15 cm and 30 cm high. The test specimen consists of 85 cylinders for each - each variation. This study uses five variations, normal concrete (N), normal concrete plus betonmix 1% (B1%), normal concrete plus betonmix 2% (B2%), normal concrete plus betonmix 3% (B3%) and normal concrete plus betonmix 4 % (B4%). Results of testing the temperature after casting temperature rise by 1-3oC. The test results hardening time / setting time can take an average time of hardening of concrete during the 225 minutes. From the test results of concrete shrinkage that occurs ± 0.1 cm. The test results show that the porosity by using betonmix can reduce porosity. Testing of compressive strength, tensile strength and modulus of elasticity sides obtained optimum value on the plus concrete admixture betonmix. In the compressive strength increased by 14% compared to normal concrete (N), while the tensile strength sides an increase of 30.43% compared to normal concrete (N), and the modulus of elasticity of an increase of 32.37% compared to normal concrete (N ). Keywords :Betonmix, temperature, setting time, shrinkage, porosity, compressive strength, split tensile strength, modulus of elasticity.
STUDI EKSPERIMEN BETON TANPA PASIR DENGAN TIGA FAKTOR AIR SEMEN MENGGUNAKAN JENIS SEMEN PCC ., Manah; Mungok, Chrisna Djaya; ., Herwani
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 2, No 2 (2014): Jurnal Mahasiswa Teknik Sipil UNTAN
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v2i2.7630

Abstract

Hollow concrete is the  concrete without sand to the constituent material consisting of coarse aggregate , cement and water .In this study, a coarse aggregate of crushed stone and cement Portland Cemen Composite (PCC) . In the manufacture of test specimens were used that method Modified ACI method then planned factor that varies the Water Cement 0.4 , 0.6 , and 0.8 . Specimens made ​​cylindrical with Æ 15 cm , and 30 cm high . Testing / testing only large compressive strength tested. From the results of the examination and calculation of compressive strength of concrete is affected by FAS 0.8 , 0.6 , and 0.4 . each produce characteristic concrete compressive strength of 5.419 MPa , 12,110 MPa , 29,303 MPa. Slump obtained using 3 variations of FAS are: 9 cm , 10 cm , and 10 cm . Average volume weight - average age of 28 days resulted in different variations - different , namely : 2,196,456 kg /m3; 2,286,325 kg /m3 , 2,379,965 kg / m3 . Price - the price the lower the FAS showed that the higher the compressive strength of concrete characteristics and the higher the volume gained weight Keywords: Concrete without sand, water cement factor (FAS) , compressive strength , Slump , Heavy volume
STUDI EKSPERIMENTAL PENGARUH JUMLAH GENANGAN AIR TERHADAP KUAT TEKAN ADUKAN BETON SEGAR Wijayadi, Udi; Mungok, Chrisna Djaya; ., Herwani
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 1, No 1 (2013): Jurnal Mahasiswa Teknik Sipil Untan
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v1i1.2310

Abstract

Tulisan ini menyajikan hasil percobaan tentang pengecoran adukkan beton kedalam cetakan dengan variabel genangan air 25%, 50%, 75% dan100% dari benda uji yang berbentuk silinder dengan 15 cm, dan tinggi 30 cm. Mutubeton yang direncanakan adalah fc? = 25 MPa yang menggunakan Metode ACI. Pengujian / pengetesan meliputi uji kuat tekan. Dari hasil penelitian nilai kuattekan karakteristik Beton Normal tanpa genangan adalah 28,644 MPa sedangkan kuattekan Beton Segar variabel genangan air 25%, 50%, 75% dan 100% diperoleh nilai kuat tekan karakteristikberturut-turut ialah 9,09 MPa; 4,02 MPa; 3,41MPa, dan 1,94 Mpa. Bila dibandingkan adukan beton segar genangan dengan beton normal tanpa genangan terjadi penurunan Kuat tekan karakteristik sebesar 63,21% untukkondisi 25%, 80,66% untuk kondisi 50%, 84,72% untuk kondisi 75% dan 86,98%untuk kondisi 100%.Kata-kata kunci: pengaruh genangan, kuat tekan, beton segar dengan fas 0,30
STUDI EKSPERIMEN KUAT TEKAN BETON BERDASARKAN URUTAN DAN WAKTU PERPUTARAN PENCAMPURAN MATERIAL PENYUSUN BETON DENGAN ADUKAN MENGGUNAKAN MESIN MOLEN Hermiyati, Rosita; Mungok, Chrisna Djaya; Supriadi, Asep
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 2, No 2 (2014): Jurnal Mahasiswa Teknik Sipil UNTAN
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v2i2.7314

Abstract

This paperpresents theexperimentalresults ofthe compressive strength ofconcretebased onthe order ofmixingandmixingturnover timeconstituentmaterialsof concretewithmortarusingmolenmachine. Specimensmade​​cylindricalwithsizeØ15cmheight30cm. Aims to determinethe extent ofthe effectofthe orderandstirringturnaroundtimewhenmixingconcreteformingmaterialormaterialof compressive strengthof concreteproduced.Jobmixformulausingthe ACImethod. From the researchthat has beendone, the order ofmixingcement, sand, gravel, waterproducethe finalcompressive strengthisbest whencomparedwithother variationswithan average of30.01MPaor33.38% and atime of 11minutes28secondswith thenumber of180.48turnaroundturnaroundtimes, so thatis greater thanthequality ofthe plan. Althoughvariations ofcement, gravel, sand, waterproducesthe smallestcompressive strengthwhen comparedto theother variations, withan averagecompressive strengthof23.87MPaor6.08%andtime17minutes35secondswith aturnover of277.6timesthe amount ofturnover,so lessonthe quality ofthe plan, but itcan still bedone atthe field. The longerstirring, it does not meanthe better theresults produced, andthe soonerdonedoes notmeanthe result is badsoyou shouldalsonote thetime ofturnover andtheturnovernumberwith atime of 13minutes63seconds, orby calculating therotationvelocity ofapproximately218.08times.   Keywords: mixingorder, time, Turnover, compressive strength, PPCCement.
STUDI BIO ADMIXTURE UNTUK BAHAN MORTAR MUTU NORMAL Factsah, Randy; Mungok, Chrisna Djaya; ., Herwani
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 1, No 1 (2013): Jurnal Mahasiswa Teknik Sipil Untan
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v1i1.2305

Abstract

Tulisan ini menyajikan hasil percobaan bahan tambah albumin yang dicampurkan kedalam adukan mortar dengan jumlah yang bervariasi yaitu 0%, 3%, 6% dan 9 %. Benda uji yang dibuat berbentuk kubus dengan ukuran 5cm x 5 cm x 5cm. Bertujuan untuk mengetahui pengaruh albumin terhadap kuat tekan mortar berdasarkan fungsi umur. Pengujian / pengetesan meliputi uji kuat tekan dengan menggunakan standar pengujian SNI 03-6825-2002. Job mix formula mengacu pada perbandingan semen terhadap agregat halus (pasir) yaitu standar ASTM C 109 / 109M-02. Dari hasil penelitian nilai kuat tekan rata-rata umur 28 hari mortar normal dengan varian penambahan albumin (0%, 3%, 6% dan 9 %), terjadi penurunan bila dibandingkan dengan mortar normal. Kuat tekan karakteristik masing-masing varian benda uji umur 28 hari berturut-turut hanya mencapai (28,773Mpa; 26,773 MPa; dan 19,440MPa) sedangkan kuat tekan mortar normal mencapai 30,323MPa.Kata kunci : Mortar , Bahan tambah Albumin, Kuat Tekan
STUDI EKSPERIMEN KUAT TEKAN BETON NON AGREGAT KASAR SEMEN PCC DENGAN SIKAMENT LN Siregar, Derina Ika Kumalasari; Mungok, Chrisna Djaya; Samsurizal, Eddy
JeLAST : Jurnal PWK, Laut, Sipil, Tambang Vol 2, No 2 (2014): Jurnal Mahasiswa Teknik Sipil UNTAN
Publisher : JeLAST : Jurnal PWK, Laut, Sipil, Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v2i2.7358

Abstract

This paperpresents the results ofthe use ofthe added materialismixed into theSikamentLN mortarbymixingvaryinglevels of0.6%, 1%, 1.5%. Specimensmade​​cuboidwith a length of5cm, width5cmand height5cm. Aimstodetermine how much influencethe addition ofvariantsSikamentLN0.6%, 1%, and1.5% in thecompressive strengthof mortarbasedfunctionsthat usecementPCCage. job mix formula refers to the ratio of cement to fine aggregate (sand) is a standard ASTM C 109 / 109m - 02 "Standard Test Method for Compressive Strength of Hydraulic Cement mortars", with a ratio of 1 Pc: 2.75 Ps: 0.485 water. From the research, the compressive strength characteristics of mortar 28 days using sikament LN (0.6%, 1.0%, 1.5%), Characteristic compressive strength of each specimen variation of 28 days in a row to reach (28.51 MPa; 26.77 MPa, and 26.55 MPa) while the characteristic compressive strength of 27.66 MPa mortar without the additive.   Keywords: Mortar, compressive strength, SikamentLN, CementPCC
Co-Authors Asep Supriadi Asep Supriyadi Aziz, Aswandi A. Cek Putra Handalan, Cek Putra Derina Ika Kumalasari Siregar Eddy Samsurizal F Windy Yolanda, F Windy Febriandy, Anggi Herwani . Ismunandar, Harri Manah . Nauly, Sondy Putra Randy Factsah Rosita Hermiyati Udi Wijayadi Vembriarto, Stepanus Totok