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Journal : Jurnal Teknologi dan Vokasi

ANALISIS MUTU PAVING BLOCK DENGAN VARIASI AGREGAT HALUS Nofrianto, Hendri; Hutrio, Hutrio
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.54-62

Abstract

Paving block is a building material made from a mixture of cement, sand and water. Paving blocks are widely used in construction, such as sidewalks, highways, parking lots, parks and so on. Ease of installation, cheap maintenance and fulfilling the aesthetic aspects make paving blocks more popular. Along with the many uses of paving blocks in the community, the quality of paving blocks must be improved. Paving block printing uses a multi block machine. The multi block machine is a mass paving block printing machine with hydraulic power. The mold used in this study was rectangular with a size of 21 cm x 10.5 cm x 8 cm. The variation of the mixture used in this study is 1 cement: 1 filler: 3 mediums, 1 cement: 3 fillers: 1 medium, and 1 cement: 3 fillers. With each mixture having 4 samples and the age of the compressive strength test is 28 days. The average compressive strength of paving blocks at the age of 28 days with a mixture composition of 1:1:3 (1 cement: 1 filler: 3 medium) was 194.73 Kg/cm2. For paving blocks with a mixture composition of 1:3:1 (1 cement: 3 fillers: 1 medium) obtained 190.37 Kg/cm2. Meanwhile, paving blocks with a mixture composition of 1:3 (1 cement: 3 filler) were obtained at 217.76 Kg/cm2. Of the 3 variations of the mixture composition tested, the 1:3 mixture composition had the highest compressive strength with a value of 217.76 Kg/cm2. The results of the examination of porosity or water absorption on average obtained the following results. For the 1:1:3 mixture composition, the average water absorption value is 1.30%. For a 1:3:1 mixture composition, the average water absorption value is 1.21%. As for the composition of the 1:3 mixture, the average water absorption value is 1.27%. Thus, all variations of the paving block mixture have met the water absorption limit for paving blocks with quality B in SNI-03-0691-1996, which is a maximum of 6%.
KAJIAN PASIR SILIKA SEBAGAI AGREGAT HALUS PADA CAMPURAN ASPHALT CONCRETE WEARING COURSE (AC – WC) BERDASARKAN UJI MARSHALL Nofrianto, Hendri; Dwi Astika, Septiana
Jurnal Teknologi dan Vokasi Vol 1 No 2 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.2.53-66

Abstract

Aggregate is the main component in the formation of asphalt mixtures, in which the weight of aggregate ranges from 90%-95% of the total weight of the asphalt mixture. Usually, the aggregate used is obtained directly from nature and is a non-renewable material so that its availability continues to decrease. One of the alternative aggregates utilized is silica sand which is a waste originating from Karang Putih Hill, Padang City, West Sumatra, it is hoped that this silica sand waste can be used as an alternative aggregate in asphalt mixtures on flexible pavements. This research aims to analyze the characteristics of asphalt mixtures using silica sand as fine aggregate and further review the effect of water on the durability of the mixture through immersion tests with variations of immersion of 0 hours, 24 hours, 48 hours, 72 hours and 96 hours based on marshall testing. The results of this study indicate that silica sand can be used as an alternative aggregate in road pavements, this can be concluded based on the values of the marshall parameters of silica sand within the specifications used, the use of silica sand in the Asphalt Concrete - Wearing Course (AC-WC) mixture has an optimum asphalt content value of 5.7%. Durability of asphalt mixtures with silica sand seen from the results of the immersion test decreases as the immersion duration increases, the Residual Strength Index (IKS) value meets the requirements of Bina Marga 2018 Revision 2 specifications up to a 24-hour immersion duration with a value of 93.94%.
ANALISIS MUTU PAVING BLOCK DENGAN VARIASI AGREGAT HALUS Nofrianto, Hendri; Hutrio, Hutrio
Jurnal Teknologi dan Vokasi Vol 1 No 1 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.1.54-62

Abstract

Paving block is a building material made from a mixture of cement, sand and water. Paving blocks are widely used in construction, such as sidewalks, highways, parking lots, parks and so on. Ease of installation, cheap maintenance and fulfilling the aesthetic aspects make paving blocks more popular. Along with the many uses of paving blocks in the community, the quality of paving blocks must be improved. Paving block printing uses a multi block machine. The multi block machine is a mass paving block printing machine with hydraulic power. The mold used in this study was rectangular with a size of 21 cm x 10.5 cm x 8 cm. The variation of the mixture used in this study is 1 cement: 1 filler: 3 mediums, 1 cement: 3 fillers: 1 medium, and 1 cement: 3 fillers. With each mixture having 4 samples and the age of the compressive strength test is 28 days. The average compressive strength of paving blocks at the age of 28 days with a mixture composition of 1:1:3 (1 cement: 1 filler: 3 medium) was 194.73 Kg/cm2. For paving blocks with a mixture composition of 1:3:1 (1 cement: 3 fillers: 1 medium) obtained 190.37 Kg/cm2. Meanwhile, paving blocks with a mixture composition of 1:3 (1 cement: 3 filler) were obtained at 217.76 Kg/cm2. Of the 3 variations of the mixture composition tested, the 1:3 mixture composition had the highest compressive strength with a value of 217.76 Kg/cm2. The results of the examination of porosity or water absorption on average obtained the following results. For the 1:1:3 mixture composition, the average water absorption value is 1.30%. For a 1:3:1 mixture composition, the average water absorption value is 1.21%. As for the composition of the 1:3 mixture, the average water absorption value is 1.27%. Thus, all variations of the paving block mixture have met the water absorption limit for paving blocks with quality B in SNI-03-0691-1996, which is a maximum of 6%.
PENGARUH GRADASI AGREGAT TERHADAP KARAKTERISTIK CAMPURAN ASPAL PANAS AC-WC BERDASARKAN PENGUJIAN MARSHALL Nofrianto, Hendri; Aprilio, Yogi; Mulyati, Mulyati
Jurnal Teknologi dan Vokasi Vol 3 No 2 (2025): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2025.3.2.141-153

Abstract

The development of quality road infrastructure is a key factor in supporting economic growth and inter-regional connectivity. This study aims to analyze the basic characteristics of aggregates and the effect of variations in size and distribution of aggregates on the performance of hot asphalt mixes. Fine and coarse aggregate samples were obtained from two quarry locations, namely Batang Atokan (Pasaman) and Gunung Nago (Padang), by testing using the Marshall method. The results showed that the aggregate from Sungai Atokan Quarry had the highest maximum stability of 1440.99 kg at 5% asphalt content, and showed the highest Marshall Quotient (MQ) value of 371.66 kg/mm. In contrast, Gunung Nago Quarry achieved the highest stability of 1211.93 kg at 7% asphalt content, but experienced a decrease in the VIM value below the specification limit at high asphalt content, indicating a risk of bleeding. The optimum asphalt content value for each quarry was 6.5% for Sungai Atokan and 6.0% for Gunung Nago. Comparative analysis shows that the mixture from the Atokan River Quarry is stiffer, more resistant to deformation, and suitable for heavy traffic, while the mixture from Mount Nago is more plastic and sensitive to excess asphalt content. The results of this study are expected to serve as a technical reference in aggregate selection and hot asphalt mix planning to improve road pavement quality in West Sumatra.
KAJIAN PASIR SILIKA SEBAGAI AGREGAT HALUS PADA CAMPURAN ASPHALT CONCRETE WEARING COURSE (AC – WC) BERDASARKAN UJI MARSHALL Nofrianto, Hendri; Dwi Astika, Septiana
Jurnal Teknologi dan Vokasi Vol 1 No 2 (2023): Jurnal Teknologi dan Vokasi
Publisher : ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtv.2023.1.2.53-66

Abstract

Aggregate is the main component in the formation of asphalt mixtures, in which the weight of aggregate ranges from 90%-95% of the total weight of the asphalt mixture. Usually, the aggregate used is obtained directly from nature and is a non-renewable material so that its availability continues to decrease. One of the alternative aggregates utilized is silica sand which is a waste originating from Karang Putih Hill, Padang City, West Sumatra, it is hoped that this silica sand waste can be used as an alternative aggregate in asphalt mixtures on flexible pavements. This research aims to analyze the characteristics of asphalt mixtures using silica sand as fine aggregate and further review the effect of water on the durability of the mixture through immersion tests with variations of immersion of 0 hours, 24 hours, 48 hours, 72 hours and 96 hours based on marshall testing. The results of this study indicate that silica sand can be used as an alternative aggregate in road pavements, this can be concluded based on the values of the marshall parameters of silica sand within the specifications used, the use of silica sand in the Asphalt Concrete - Wearing Course (AC-WC) mixture has an optimum asphalt content value of 5.7%. Durability of asphalt mixtures with silica sand seen from the results of the immersion test decreases as the immersion duration increases, the Residual Strength Index (IKS) value meets the requirements of Bina Marga 2018 Revision 2 specifications up to a 24-hour immersion duration with a value of 93.94%.