Claim Missing Document
Check
Articles

Found 6 Documents
Search
Journal : U Karst

EFFECT OF ADDITIVE ZEOLITE MATERIALS ON THE STRENGTH OF RED BRICK POST BURNING Prima Eko Agustyawan; Samsul Arif
U Karst Vol 4, No 2 (2020): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4013.619 KB) | DOI: 10.30737/ukarst.v4i2.1181

Abstract

This research aims to determine how to make bricks with additive Zeolite with a composition of 14%, 16%, 18%, and 20%. This research method using the experimental method, this research concludes that red bricks are added with additive Zeolite with variations in the addition of 14%, 16%, 18%, and 20%. 2 samples were made for each additional percentage of Zeolite Additive, with the mold size according to the fabrication length 21 cm x 10 cm x 5 cm. By going through the drying process for approximately 14 days and burning for approximately 3 days. The resulting increase in compressive strength even though some of the variants experienced a decrease. The addition of the red brick variant with a composition of 0% produces an average compressive strength of 30.95 kg / cm2 . The 14% variant produces an average compressive strength of 35.71 kg / cm2, the 16% variant produces an average compressive strength of 40.48 kg / cm2, 18% and 20% variants produces an average compressive strength of 33.33 kg / cm2. The highest increase in compressive strength is the 16% variant, with an average compressive strength value of 40.48 kg / cm2
ALTERNATIF PENGGUNAAN SERAT ECENG GONDOK UNTUK MENINGKATKAN INDEX PROPERTIES OF MARSHALL PADA CAMPURAN LASTON TIPE I SNI 03-1737-1989 Dwi Kartikasari; Samsul Arif
U Karst Vol 2, No 1 (2018): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.014 KB) | DOI: 10.30737/ukarst.v2i1.260

Abstract

However, flexible pavement has many disadvantages, such as early damage to the road surface after some time has passed by traffic so the road cannot reach the planned age. For this reason, a research was carried out to add hot asphalt mixture which aims to improve the quality of the mixture, the selected material is natural water hyacinth. The method used is trial and error with reference SNI 03-1737-1989. Variations used were 3%, 5%, and 7% of asphalt weight, the level of asphalt used was 4.48%. Of the 3 variations of the mixture used in Type I Asphalt Concrete Layer, the results obtained that the water hyacinth fiber content that has the best score and meet the specifications of SNI 03-1737- 1989 is the percentage of 7% obtained. from the calculation data using graphs and regression models where Marshall Stability is 889.73 Kg, VFWA (voids filled with asphalt) are equal to 65.97%, VIM (voids in mixtures) are equal to 1.757%, VMA (voids in mineral aggregates ) is equal to 20.30%, density 2.420 gr / cc, Flow 3.37 mm, and Marshall Quotient of 265.80 Kg / mm. Keywords : Flexible Pavement, Water Hyacinth Fiber, Marshall Test. Namun, perkerasan lentur memiliki banyak kelemahan, seperti kerusakan awal pada permukaan jalan setelah beberapa waktu berlalu lalang sehingga jalan tidak dapat mencapai usia yang direncanakan. Untuk alasan ini, penelitian dilakukan untuk menambahkan campuran aspal panas yang bertujuan untuk meningkatkan kualitas campuran, bahan yang dipilih adalah eceng gondok air alami. Metode yang digunakan adalah coba-coba dengan referensi SNI 03-1737-1989. Variasi yang digunakan adalah 3%, 5%, dan 7% dari berat aspal, tingkat aspal yang digunakan adalah 4,48%. Dari 3 variasi campuran yang digunakan pada Tipe I Asphalt Concrete Layer, diperoleh hasil bahwa kandungan serat eceng gondok yang memiliki skor terbaik dan memenuhi spesifikasi SNI 03-1737-1989 adalah persentase 7% yang diperoleh. dari data perhitungan menggunakan grafik dan model regresi di mana Marshall Stability adalah 889,73 Kg, VFWA (rongga diisi dengan aspal) sama dengan 65,97%, VIM (rongga dalam campuran) sama dengan 1,757%, VMA (rongga dalam agregat mineral) sama dengan hingga 20,30%, kepadatan 2,420 gr / cc, Aliran 3,37 mm, dan Marshall Quotient dari 265,80 Kg / mm. Kata Kunci: Perkerasan Lentur, Serat Eceng Gondok, Uji Marshall.
THE EFFECT OF USING CERAMIC WASTE POWDER AS A SUBTITUTE FOR CEMENT ON THE COMPRESSIVE STRENGTH OF K250 CONCRETE Samsul Arif; Dwi Kartikasari
U Karst Vol 4, No 2 (2020): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3039.414 KB) | DOI: 10.30737/ukarst.v4i2.1191

Abstract

In every construction work, you will find the remains of building materials no longer used and disposed of as waste, one of which is a ceramic waste. Ceramic waste is waste that has no selling value. Therefore the authors in this study will utilize ceramic waste as a substitute for cement with concrete quality K250. Several studies have also explained that ceramic waste contains silica, which has high adhesion, making it suitable as a substitute for cement. The process of mixing ceramic waste as a K250 quality concrete mixture is carried out according to the Indonesian SNI Standard and ASTM standards by laboratory testing using a variation of 3%, 4%, and 5% as a substitute cement. From these results, the composition of the addition of 3% ceramic waste has an average compressive strength of 330.99 kg/cm2, a composition of 4% has an average compressive strength value of 243.88 kg/cm2, and a percentage of 5% has an average compressive strength value 258.41 kg/cm2. The more the ceramic waste mixture as a substitute for cement, the lower the compressive strength of the concrete
ALTERNATIF PENGGUNAAN SERAT ECENG GONDOK UNTUK MENINGKATKAN INDEX PROPERTIES OF MARSHALL PADA CAMPURAN LASTON TIPE I SNI 03-1737-1989 Dwi Kartikasari; Samsul Arif
U Karst Vol. 2 No. 1 (2018): APRIL
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v2i1.260

Abstract

However, flexible pavement has many disadvantages, such as early damage to the road surface after some time has passed by traffic so the road cannot reach the planned age. For this reason, a research was carried out to add hot asphalt mixture which aims to improve the quality of the mixture, the selected material is natural water hyacinth. The method used is trial and error with reference SNI 03-1737-1989. Variations used were 3%, 5%, and 7% of asphalt weight, the level of asphalt used was 4.48%. Of the 3 variations of the mixture used in Type I Asphalt Concrete Layer, the results obtained that the water hyacinth fiber content that has the best score and meet the specifications of SNI 03-1737- 1989 is the percentage of 7% obtained. from the calculation data using graphs and regression models where Marshall Stability is 889.73 Kg, VFWA (voids filled with asphalt) are equal to 65.97%, VIM (voids in mixtures) are equal to 1.757%, VMA (voids in mineral aggregates ) is equal to 20.30%, density 2.420 gr / cc, Flow 3.37 mm, and Marshall Quotient of 265.80 Kg / mm. Keywords : Flexible Pavement, Water Hyacinth Fiber, Marshall Test. Namun, perkerasan lentur memiliki banyak kelemahan, seperti kerusakan awal pada permukaan jalan setelah beberapa waktu berlalu lalang sehingga jalan tidak dapat mencapai usia yang direncanakan. Untuk alasan ini, penelitian dilakukan untuk menambahkan campuran aspal panas yang bertujuan untuk meningkatkan kualitas campuran, bahan yang dipilih adalah eceng gondok air alami. Metode yang digunakan adalah coba-coba dengan referensi SNI 03-1737-1989. Variasi yang digunakan adalah 3%, 5%, dan 7% dari berat aspal, tingkat aspal yang digunakan adalah 4,48%. Dari 3 variasi campuran yang digunakan pada Tipe I Asphalt Concrete Layer, diperoleh hasil bahwa kandungan serat eceng gondok yang memiliki skor terbaik dan memenuhi spesifikasi SNI 03-1737-1989 adalah persentase 7% yang diperoleh. dari data perhitungan menggunakan grafik dan model regresi di mana Marshall Stability adalah 889,73 Kg, VFWA (rongga diisi dengan aspal) sama dengan 65,97%, VIM (rongga dalam campuran) sama dengan 1,757%, VMA (rongga dalam agregat mineral) sama dengan hingga 20,30%, kepadatan 2,420 gr / cc, Aliran 3,37 mm, dan Marshall Quotient dari 265,80 Kg / mm. Kata Kunci: Perkerasan Lentur, Serat Eceng Gondok, Uji Marshall.
EFFECT OF ADDITIVE ZEOLITE MATERIALS ON THE STRENGTH OF RED BRICK POST BURNING Prima Eko Agustyawan; Samsul Arif
U Karst Vol. 4 No. 2 (2020): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v4i2.1181

Abstract

This research aims to determine how to make bricks with additive Zeolite with a composition of 14%, 16%, 18%, and 20%. This research method using the experimental method, this research concludes that red bricks are added with additive Zeolite with variations in the addition of 14%, 16%, 18%, and 20%. 2 samples were made for each additional percentage of Zeolite Additive, with the mold size according to the fabrication length 21 cm x 10 cm x 5 cm. By going through the drying process for approximately 14 days and burning for approximately 3 days. The resulting increase in compressive strength even though some of the variants experienced a decrease. The addition of the red brick variant with a composition of 0% produces an average compressive strength of 30.95 kg / cm2 . The 14% variant produces an average compressive strength of 35.71 kg / cm2, the 16% variant produces an average compressive strength of 40.48 kg / cm2, 18% and 20% variants produces an average compressive strength of 33.33 kg / cm2. The highest increase in compressive strength is the 16% variant, with an average compressive strength value of 40.48 kg / cm2
THE EFFECT OF USING CERAMIC WASTE POWDER AS A SUBTITUTE FOR CEMENT ON THE COMPRESSIVE STRENGTH OF K250 CONCRETE Samsul Arif; Dwi Kartikasari
U Karst Vol. 4 No. 2 (2020): NOVEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/ukarst.v4i2.1191

Abstract

In every construction work, you will find the remains of building materials no longer used and disposed of as waste, one of which is a ceramic waste. Ceramic waste is waste that has no selling value. Therefore the authors in this study will utilize ceramic waste as a substitute for cement with concrete quality K250. Several studies have also explained that ceramic waste contains silica, which has high adhesion, making it suitable as a substitute for cement. The process of mixing ceramic waste as a K250 quality concrete mixture is carried out according to the Indonesian SNI Standard and ASTM standards by laboratory testing using a variation of 3%, 4%, and 5% as a substitute cement. From these results, the composition of the addition of 3% ceramic waste has an average compressive strength of 330.99 kg/cm2, a composition of 4% has an average compressive strength value of 243.88 kg/cm2, and a percentage of 5% has an average compressive strength value 258.41 kg/cm2. The more the ceramic waste mixture as a substitute for cement, the lower the compressive strength of the concrete