Fatkhurrohim Fatkhurrohim, Ahmad Mashadi, Muhammad Amin, Dwi Sat Agus Yuwana
ABSTRACTAfter the eruption of Mount Merapi, which occurred on October 26th 2010 produced an abundance of cold lava sand. The researcher attempted to conduct test of cold lava sand as fine aggregate concrete. This study aims to compare the compressive strength of concrete by using a cold lava sand taken from the Kali Putih, Salam, Magelang and sand are not affected by cold lava taken from Kali Blondo located in the Blondo, Magelang. The method of this study include: testing of materials, manufacturing of test specimens and test concrete performance after 7, 14, 21 days and 28 days. From the test result of concrete compressive strength we can know strength combaine ineach mixtureby weight volume ratio 1pc: 2 ps; 3kr with 0,6 water cement ratio. Based on the results of testing the quality of the sand material taken from the Kali Putih, Salam, Magelang to the mud content, unit weight, specific gravity, water absorption,and sieve analysis PUBI 1982 qualifies mixed concrete.The result of comparative testing of the quality of the sand material taken from kali blondo to sieve analysis are not eligible PUBI 1982. The results showed that the compressive strength of concrete on average, the highest shown in the concrete that uses cod lava sand derived from the down stream of Kali Putih, the average compressive strength of 279,51 kg/cm2, with the weight of the specimen by an average of 11, 5 kg.
{"title":"PENGGUNAAN PASIR LAHAR DINGIN DI KALI PUTIH SEBAGAI AGREGAT HALUS BETON","authors":"Fatkhurrohim Fatkhurrohim, Ahmad Mashadi, Muhammad Amin, Dwi Sat Agus Yuwana","doi":"10.31002/rice.v2i2.878","DOIUrl":"https://doi.org/10.31002/rice.v2i2.878","url":null,"abstract":"ABSTRACTAfter the eruption of Mount Merapi, which occurred on October 26th 2010 produced an abundance of cold lava sand. The researcher attempted to conduct test of cold lava sand as fine aggregate concrete. This study aims to compare the compressive strength of concrete by using a cold lava sand taken from the Kali Putih, Salam, Magelang and sand are not affected by cold lava taken from Kali Blondo located in the Blondo, Magelang. The method of this study include: testing of materials, manufacturing of test specimens and test concrete performance after 7, 14, 21 days and 28 days. From the test result of concrete compressive strength we can know strength combaine ineach mixtureby weight volume ratio 1pc: 2 ps; 3kr with 0,6 water cement ratio. Based on the results of testing the quality of the sand material taken from the Kali Putih, Salam, Magelang to the mud content, unit weight, specific gravity, water absorption,and sieve analysis PUBI 1982 qualifies mixed concrete.The result of comparative testing of the quality of the sand material taken from kali blondo to sieve analysis are not eligible PUBI 1982. The results showed that the compressive strength of concrete on average, the highest shown in the concrete that uses cod lava sand derived from the down stream of Kali Putih, the average compressive strength of 279,51 kg/cm2, with the weight of the specimen by an average of 11, 5 kg.","PeriodicalId":160052,"journal":{"name":"Reviews in Civil Engineering","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116375266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Hariyadi, Y. Pratama, S. Sigit, Lulut Fadhilah, Woro Partini Maryunani, S. Sudarno
Peningkatan jumlah kendaraan bermotor berbanding lurus dengan kenaikan limbah Ban karet. Limbah ban karet yang belum banyak dimanfaatkan. Oleh karena itu, dilakukan penelitian penggunaan serbuk limbah abn karet untuk perkerasan jalan raya.Penelitian ini bertujuan untuk mengetahui pengaruh nilai marshall dengan membandingkan besarnya komposisi campuran perkerasan jalan yang dihasilkan dengan penambahan campuran serbuk limbah ban karet (crumb rubber) mesh #80 dan mesh #120 yang memiliki nilai stabilitas dan kualitas yang baik dan memenuhi syarat perencanaan campuran aspal sesuai dengan spesifikasi bina marga tahun 2010. Penelitian ini menggunakan variasi limbah ban karet (Crumb Rubber) mesh #80 dan mesh#120 dengan variasi prosentase 0%,1%,2%,3% dan kadar aspal dengan variasi prosentase 5%, 5,5%, 6%, 6,5%. Berdasarkan hasil sementara penelitian tersebut bahwa dengan penambahan serbuk limbah ban karet (crumb rubber) sebanyak 2% mesh #120 menunjukkan nilai stabilitas yang telah memenuhi spesifikasi dan stabilitas tertinggi pada kadar aspal 6%, sedangkan nilai flow semakin bertambah dengan banyaknya kadar aspal dan nilai hasil bagi marshall tertinggi pada kadar aspal 5,5%.
{"title":"Pengaruh Ukuran Crumb Rubber Mesh #80 dan Mesh #120 (Serbuk Limbah Ban Karet) pada Penambahan Campuran Laston untuk Perkerasan Jalan","authors":"H. Hariyadi, Y. Pratama, S. Sigit, Lulut Fadhilah, Woro Partini Maryunani, S. Sudarno","doi":"10.31002/rice.v2i2.948","DOIUrl":"https://doi.org/10.31002/rice.v2i2.948","url":null,"abstract":"Peningkatan jumlah kendaraan bermotor berbanding lurus dengan kenaikan limbah Ban karet. Limbah ban karet yang belum banyak dimanfaatkan. Oleh karena itu, dilakukan penelitian penggunaan serbuk limbah abn karet untuk perkerasan jalan raya.Penelitian ini bertujuan untuk mengetahui pengaruh nilai marshall dengan membandingkan besarnya komposisi campuran perkerasan jalan yang dihasilkan dengan penambahan campuran serbuk limbah ban karet (crumb rubber) mesh #80 dan mesh #120 yang memiliki nilai stabilitas dan kualitas yang baik dan memenuhi syarat perencanaan campuran aspal sesuai dengan spesifikasi bina marga tahun 2010. Penelitian ini menggunakan variasi limbah ban karet (Crumb Rubber) mesh #80 dan mesh#120 dengan variasi prosentase 0%,1%,2%,3% dan kadar aspal dengan variasi prosentase 5%, 5,5%, 6%, 6,5%. Berdasarkan hasil sementara penelitian tersebut bahwa dengan penambahan serbuk limbah ban karet (crumb rubber) sebanyak 2% mesh #120 menunjukkan nilai stabilitas yang telah memenuhi spesifikasi dan stabilitas tertinggi pada kadar aspal 6%, sedangkan nilai flow semakin bertambah dengan banyaknya kadar aspal dan nilai hasil bagi marshall tertinggi pada kadar aspal 5,5%.","PeriodicalId":160052,"journal":{"name":"Reviews in Civil Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124923563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The expansion of urban areas and the reduction of forest areas occur on several places in Indonesia. The Building process will effect to the land untilization. So, it needs a rule to guide the environmental balance. The purpose of the research is to find out the effect of the land surface and the slope to the flow coefficient (C). This research was conducted using catchment area model. The measurements were done by the average of rain intensity, the soil density, volume of runoff, and the flow coefficient (C). The slope area that were used are 00, 20 and 40. The surface used soil, paving, grass, and a mixture of soil and rock with of 75%: 25% ratio. The result showed that the slope value effected to the value of flow coefficient (C), if the slope was high then flow coefficient (C) value was high too. The result showed that the mixture of soil and rock surface had the hihghest value that is 40 slope with 0.43 coefficient value. The surface that had lowest value is grass surface on the 00 slope value with 0.11 average value of flow coefficient (C). Based on the ANOVA test results, it showed the slope surface had positive and significant effect to the flow coefficient (C) value.
{"title":"PENGARUH JENIS PERMUKAAN TERHADAP BESARNYA LIMPASAN AIR","authors":"Cahyo Indro Saputro, Bambang Surendro, M. Amin","doi":"10.31002/rice.v2i2.868","DOIUrl":"https://doi.org/10.31002/rice.v2i2.868","url":null,"abstract":"The expansion of urban areas and the reduction of forest areas occur on several places in Indonesia. The Building process will effect to the land untilization. So, it needs a rule to guide the environmental balance. The purpose of the research is to find out the effect of the land surface and the slope to the flow coefficient (C). This research was conducted using catchment area model. The measurements were done by the average of rain intensity, the soil density, volume of runoff, and the flow coefficient (C). The slope area that were used are 00, 20 and 40. The surface used soil, paving, grass, and a mixture of soil and rock with of 75%: 25% ratio. The result showed that the slope value effected to the value of flow coefficient (C), if the slope was high then flow coefficient (C) value was high too. The result showed that the mixture of soil and rock surface had the hihghest value that is 40 slope with 0.43 coefficient value. The surface that had lowest value is grass surface on the 00 slope value with 0.11 average value of flow coefficient (C). Based on the ANOVA test results, it showed the slope surface had positive and significant effect to the flow coefficient (C) value.","PeriodicalId":160052,"journal":{"name":"Reviews in Civil Engineering","volume":"7 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113985369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DAS Batang Kuranji merupakan salah satu DAS yang besar di kota Padang. Namun memiliki beberapa permasalahan, salah satu permasalahan yang terdapat pada DAS Batang Kuranji khususnya Bagian Hilir adalah erosi. Erosi merupakan salah satu permasalahan lingkungan yang sangat serius pada suatu ekosistem daerah aliran sungai (DAS).Pada penelitian ini menggunakan metode MUSLE untuk memprediksi besaran laju erosi yang terjadi pada DAS Batang Kuranji Bagian Hilir.Metode MUSLE menggunakan software Arc.GIS 10.3. and software ENVI 4.5 untuk menghitung kerapatan vegetasi. Hasil penelitian menunjukkan bahwa laju erosi permukaan lahan yang terjadi di Daerah Aliran Sungai Batang kuranji Bagian Hilir diperoleh sebesar 927.502 Ton/bulan atau 7,26 mm/tahun atau 130,72 ton/ha/tahun. Tingkat bahaya erosi termasuk tingkat sedang karena jumlah erosi yang terjadi pada Daerah Aliran Sungai Batang kuranji Bagian Hilir sebesar 130,72 ton/ha/tahun, maka termasuk klasifikasi sedang (16<180ton/ha/tahun).
{"title":"KAJIAN LAJU EROSI DIPENGARUHI TUTUPAN VEGETASI MENGGUNAKAN CITRA LANDSAT-8 PADA DAS BATANG KURANJI BAGIAN HILIR","authors":"Silta Yulan Nifen, Afri Triwanda","doi":"10.31002/rice.v2i2.894","DOIUrl":"https://doi.org/10.31002/rice.v2i2.894","url":null,"abstract":"DAS Batang Kuranji merupakan salah satu DAS yang besar di kota Padang. Namun memiliki beberapa permasalahan, salah satu permasalahan yang terdapat pada DAS Batang Kuranji khususnya Bagian Hilir adalah erosi. Erosi merupakan salah satu permasalahan lingkungan yang sangat serius pada suatu ekosistem daerah aliran sungai (DAS).Pada penelitian ini menggunakan metode MUSLE untuk memprediksi besaran laju erosi yang terjadi pada DAS Batang Kuranji Bagian Hilir.Metode MUSLE menggunakan software Arc.GIS 10.3. and software ENVI 4.5 untuk menghitung kerapatan vegetasi. Hasil penelitian menunjukkan bahwa laju erosi permukaan lahan yang terjadi di Daerah Aliran Sungai Batang kuranji Bagian Hilir diperoleh sebesar 927.502 Ton/bulan atau 7,26 mm/tahun atau 130,72 ton/ha/tahun. Tingkat bahaya erosi termasuk tingkat sedang karena jumlah erosi yang terjadi pada Daerah Aliran Sungai Batang kuranji Bagian Hilir sebesar 130,72 ton/ha/tahun, maka termasuk klasifikasi sedang (16<180ton/ha/tahun).","PeriodicalId":160052,"journal":{"name":"Reviews in Civil Engineering","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132925800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：