IOP Conference Series: Earth and Environmental Science, 2021
The mechanical properties improvement of sands using industrial waste such as FA has been used ex... more The mechanical properties improvement of sands using industrial waste such as FA has been used extensively to mitigate shearing failure. The shear strength of FA-improved sand holds an essential role in this thing. This technique’s efficacy is determined not only from the shear strength at peak state but also at an ultimate circumstance. In that case, a series of direct shear strength tests were performed on both FA-improved sand and pure sand. The testing parameters were FA amount, sizes of the sand grain, and organic content. Ultimate shear strengths on those parameters are observed systematically and compared to each other. The test results show that the ultimate shear strength increases with FA amount in the specimen, grain sizes of the sand, and diminishing organic content. A bigger size of the grains, resulting from the FA bond, generates a higher internal friction angle directly associated with ultimate shear strength gain. On the other hand, the existence of organic content in the FA-improved sands impedes the refinement of the ultimate shear strength. At the ultimate state, FA-improved sands behave as ordinary sands purely frictional.
Every year the use of fossil fuels has increased, which requires finding alternative energy sourc... more Every year the use of fossil fuels has increased, which requires finding alternative energy sources to replace fossil fuels. The existence of plastic waste, especially HDPE plastic and rice husks, is a potential to be used as renewable energy in the form of briquettes. This research was conducted to determine the potential use of plastic powder and biomass as an alternative fuel. The biomass used in this research is rice husk and HDPE plastic. To determine the quality of briquettes, several variations of the mixture of rice husks were used, namely: sample 1 = 90% rice husk + 10% High Density Polyethylene (HDPE) plastic, sample 2 = 80% rice husk + 20% High Density Polyethylene (HDPE) plastic, sample 3 = 70% rice husk + High Density Polyethylene (HDPE) plastic 30%, sample 4 = 100% rice husk. The test parameters used are proximate test (calorific value), flame length test, briquette resistance test. The test results obtained briquettes in sample 3 have a calorific value of 7586,853 cal/g and have a combustion rate value of 0,83 grams/minute.Keywords: Briquettes, Rice Husk, High Density Polyethylene (HDPE) Plastic, Calorific Value
IOP Conference Series: Earth and Environmental Science, 2021
The mechanical properties improvement of sands using industrial waste such as FA has been used ex... more The mechanical properties improvement of sands using industrial waste such as FA has been used extensively to mitigate shearing failure. The shear strength of FA-improved sand holds an essential role in this thing. This technique’s efficacy is determined not only from the shear strength at peak state but also at an ultimate circumstance. In that case, a series of direct shear strength tests were performed on both FA-improved sand and pure sand. The testing parameters were FA amount, sizes of the sand grain, and organic content. Ultimate shear strengths on those parameters are observed systematically and compared to each other. The test results show that the ultimate shear strength increases with FA amount in the specimen, grain sizes of the sand, and diminishing organic content. A bigger size of the grains, resulting from the FA bond, generates a higher internal friction angle directly associated with ultimate shear strength gain. On the other hand, the existence of organic content in the FA-improved sands impedes the refinement of the ultimate shear strength. At the ultimate state, FA-improved sands behave as ordinary sands purely frictional.
Every year the use of fossil fuels has increased, which requires finding alternative energy sourc... more Every year the use of fossil fuels has increased, which requires finding alternative energy sources to replace fossil fuels. The existence of plastic waste, especially HDPE plastic and rice husks, is a potential to be used as renewable energy in the form of briquettes. This research was conducted to determine the potential use of plastic powder and biomass as an alternative fuel. The biomass used in this research is rice husk and HDPE plastic. To determine the quality of briquettes, several variations of the mixture of rice husks were used, namely: sample 1 = 90% rice husk + 10% High Density Polyethylene (HDPE) plastic, sample 2 = 80% rice husk + 20% High Density Polyethylene (HDPE) plastic, sample 3 = 70% rice husk + High Density Polyethylene (HDPE) plastic 30%, sample 4 = 100% rice husk. The test parameters used are proximate test (calorific value), flame length test, briquette resistance test. The test results obtained briquettes in sample 3 have a calorific value of 7586,853 cal/g and have a combustion rate value of 0,83 grams/minute.Keywords: Briquettes, Rice Husk, High Density Polyethylene (HDPE) Plastic, Calorific Value
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Papers by Lukas Kano Mangalla