Assessment of pozzolanic reactivity is commonly based on a direct and indirect method which mostl... more Assessment of pozzolanic reactivity is commonly based on a direct and indirect method which mostly used the electrical conductivity method. However,these methodsare limited by long-duration requirements or need to be done in the laboratory. By modifying the sandbox test to measure the electrical resistivity of Rice Husk Ash (RHA) as pozzolan, this investigation tries to offer a simpler method that can be done in situ. The RHA was heated in the oven with several temperatures varying from 100C to 600C and tested for its electrical resistivity by mixing it with laboratory-gradelime. The value of electrical resistivity is then compared with the value of the Luxan method by using the same materials. The results showed a similar trend with the electrical conductivity method. Hence new pozzolanic classification was proposed in linewith this new pozzolanic assessment.
Building with earth is one of those ancient technologies which still remain alive in the place un... more Building with earth is one of those ancient technologies which still remain alive in the place untouched by industrialization. Innovation, however, has evolved low strength sun dried adobe into burnt clay brick with more strength gained. Mounted interest in searching sustainable green building material has created compressed earth stabilized brick which attract people for its low carbon emission especially in the production stage. This paper demonstrates the properties and benefit of CSEB compared to conventional brick especially in strength and durability. Past researchers has shown that with proper used of stabilizer and with right compressibility will improve the performance of CSEB. The result showed that compressed stabilized earth bricks are comparable with every respect of burnt clay brick.
Increasing the utilization of village resource potential is a part that cannot be separated from ... more Increasing the utilization of village resource potential is a part that cannot be separated from sustainable agriculture and rural development (Sustainable Agriculture and Rural Development). The various resources found in the village are production factors to produce a number of agricultural products or commodities. How much the value of the resources used will determine the yield of agricultural commodities both quantitatively and qualitatively. The ability of the village to provide various infrastructure and facilities and utilize the village's potential optimally is largely determined by the village's ability to fulfill funding for village development. The research method is a participatory approach, namely the Participatory Rural Appraisal (PRA) technique. Data analysis was statistically descriptive and qualitative. The potential of Lubuk Kertang village, among others; Resources and agricultural potential of rainfed lowland rice, ponds. potential natural resources of ma...
Black uncontrolled burnt Rice Husk Ash (RHA) obtained from the boiler of rice mill is a waste pro... more Black uncontrolled burnt Rice Husk Ash (RHA) obtained from the boiler of rice mill is a waste product which usually causing air and water pollution. As a waste, RHA has very little value and commercial use. Hence this study examined the pozzolanic potential of RHA as a cement replacement in the Compressed Stabilized Earth Brick (CSEB) production. This is an experiment-based study that characterized the raw materials used to produce CSEB samples. In the characterization of raw materials, the XRD analysis found that the burning temperature of the RHA in the rice mill boiler was around 700-800°C. Pozzolanic assessments on the RHA found that it possesses pozzolanic characteristic within, and conformed to ASTM C 618 – 03. Besides that, this study has also managed to develop a new method of determining the pozzolanicity of RHA using electrical resistivity approach which is more practical than Luxan conductivity method. In term of pozzolanic conductivity, it was found that the RHA has a va...
Derajat kesehatan pada masyarakat merupakan hal yang paling penting agar menciptakan generasi ban... more Derajat kesehatan pada masyarakat merupakan hal yang paling penting agar menciptakan generasi bangsa yang sukses dan dapat memajukan Indonesia di masa yang akan datang. Penigkatan pengetahuan pola hidup bersih dan sehat sejak dini dengan edukasi cara menggosok gigi, melakukan cuci tangan, menggunakan air bersih, pengelolaan sampah organik, serta perilaku gotong royong menjadi metode dalam pengabdian masyarakat ini. Pengabdian ini dilakukan di Desa Galang Suka, dengan hasil yang didapatkan yaitu masyarakat paham dan mengaplikasikan perilaku pola hidup bersih dan sehat di kehidupan sehari-hari sehingga tercapa peningkatan derajat kesehatan. Perilaku hidup bersih dan sehat telah dipahami dan sudah mulai dilakukan dan diaplikasikan pada kehidupan sehari-hari oleh masyarakat Desa Galang Suka.
Salah satu kegiatan KKN di desa Galang Suka, kecamatan Galang, kabupaten Deli Serdang oleh mahasi... more Salah satu kegiatan KKN di desa Galang Suka, kecamatan Galang, kabupaten Deli Serdang oleh mahasiswa UMSU pada tahun 2019 ini salah satunya adalah untuk memberikan pengetahuan tentang manajemen pembukuan akuntansi untuk UMKM (usaha mikro, kecil dan menengah) yang tergabung didalam unit UP2K (Usaha Peningkatan Pendapatan Keluarga). Pada umumnya pelaku usaha ini bergerak didalam bidang makanan ringan yang dihasilkan sendiri seperti keripik, kerupuk dan kacang2an. Bahkan ada juga keluarga yang memproduksi bahan dasar untuk usaha makanan ringan tersebut seperti tempe. Pada temuan awal didpati bahwa semua anggota UP2K yang ditemui belum mepunyai pembukuan keuangan usaha yang memadai. Pada kegiatan ini dibuatlah satu bentuk pembukuan keuangan akuntansi untuk usaha sederhana, yang diharapkan setelah kegiatan ini, sistem pembukuan tersebut dapat dipergunakan untuk meningkatkan kinerja manajemen usaha.
The production of Compressed Earth Brick (CEB) does not require burning as compared to normal cla... more The production of Compressed Earth Brick (CEB) does not require burning as compared to normal clay brick. However it requires cement to stabilize and bind the clay into brick. This study tried to replace cement with Rice Husk Ash (RHA) as a binding material in the making of CEB. Since RHA is commonly used as a pozzolanic material in strengthening concrete where it react with calcium hydroxide generated from the cement hydration, this study used hydrated lime to mix with RHA to produce the same pozzolanic reaction. The result shows that the mixture with combination 25% RHA and 75% hydrated lime give the best result. Even though the strength do not reach the standard set by MS76 for load bearing brick, however it could be used as non load bearing brick.
Rice Husk Ash (RHA) as sand replacement and filler of Foamed Concrete (FC) has contributed to inc... more Rice Husk Ash (RHA) as sand replacement and filler of Foamed Concrete (FC) has contributed to increase the strength. FC with RHA has increased the slab resistant of impact loading. When RHA granulate filled the FC porous, it would delay the collapsing of cell porous due to the increasing strain of porous walls. The RHA granulate increased the elasticity of the porous walls of FC. Other than that, the walls porous would be more plastic when it was subjected to compressive stress that generated by impact loading. The impact test conducted an instrument drop-weight impact tower to generate various impact velocities of non-deformable impactor on slab of FC and FC with RHA. Results show that FC with RHA created the crater without fragments. Means while, FC clearly create radial crack and fragments within the crater field. However, both slab materials did not generate spalling nor scabbing upon impact and the influence of porosity produces only local damage due to the mechanism of brittle...
One of the potentials owned by Desa Harang Julu, Padang Lawas Regency is livestock, especially go... more One of the potentials owned by Desa Harang Julu, Padang Lawas Regency is livestock, especially goats. However, the excesses caused by farm animals, especially dirt, have a huge impact on health and the environment. In addition, people's habit in processing the manure to be used as compost is less optimal so that agricultural products often do not have maximum impact. Currently, during the Covid 19 pandemic that occurred all over the world, caused an economic recession and decreased income of farming families. With the activities of the training program of making fertilizer from goat manure this gives a new passion impact to farmers. This simple, effective and efficient method of making compost is a new knowledge and experience for farmers in Desa Harang Julu. This fertilizer is made by adding some materials available in nature easily and cheaply, but provides effective results, both in terms of manufacture, process and use and relatively very short use. Thus, this training provi...
IOP Conference Series: Materials Science and Engineering, 2016
Investigation of Rice Husk Ash (RHA) thoroughly under controlled burning is regular issue to obta... more Investigation of Rice Husk Ash (RHA) thoroughly under controlled burning is regular issue to obtain result to produce the amorphous silica that has high pozzolanic reactivity characteristic. This paper offered an observation about characteristic of ground and un-ground of un-controlled burning temperature RHA that were taken from rice millings in Muar, Johor Malaysia. Such tests as X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD), Particle Size Analysis and Specific Area Surface, Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Electron microscope (SEM) were conducted in this investigation to carry out the characteristic of RHA samples. The results show that the RHA was consist approximately 89.90% of silica and the RHA possessed the amorphous particle were dominant than its crystalline part. This proves that the RHA has a big potential as a pozzolanic material considering the silica content and porous structure. In addition, particle size analysis decides whether the pozzolanic reactivity can be increased by grinding process.
... guidance. I extend my gratitude to my second supervisor En. Mustafa Abdullah Al Bakri for his... more ... guidance. I extend my gratitude to my second supervisor En. Mustafa Abdullah Al Bakri for his support and encouragement. ... I am grateful to my husband Josef Hadipramana and my childrenFadhilah Athhar Fauzi Avicenna and Fatharani Mazaya Azka for their ...
ABSTRACT Foamed concrete as aerated concrete widely used in range of constructions application, n... more ABSTRACT Foamed concrete as aerated concrete widely used in range of constructions application, no exception to structure shield. As structure shield is important to resist on impact loading. Whilst, Rice Husk Ash (RHA) as agro-waste potentials as filler for foamed concrete. RHA that is produced by uncontrolled burning under 700oC during ± 6 hours obtain the granules contain the carbon and porous. The granules of RHA may fill the porous in matrix foamed concrete without remove the characteristic the foamed concrete its self-as aerated concrete. This investigation RHA has been used as a replacement for fine aggregate. Target density 1800 kg/m3 of foamed concrete both of with and without RHA have been produced to compare their strength and characteristic of impact resistance. SEM and EDS test has been conducted to determine microstructure and chemical composition of foamed concrete with RHA. The results showed that granules of RHA filled the porous and bonded with the denser part into matrix. The presence of granules of RHA has been changing the role of the air cell of porous in foamed concrete when it was subjected to impact loading. Also the granules of RHA give the foamed concrete denser without losing its characteristic of porous entirely.
ABSTRACT Recently, foamed concrete has become a popular construction material that can be used in... more ABSTRACT Recently, foamed concrete has become a popular construction material that can be used in wide range of constructions application. Whilst the Rice Husk Ash (RHA) as agro-waste is contain high amount of silicon dioxide. RHA is produced in significant amount every year from agriculture countries. RHA has potential as a material to produce foamed concrete. In this research RHA has been used as a replacement for fine aggregate which used in construction as ordinary concrete material. In this study, foamed concrete with target density 1400, 1600 and 1800 kg/m(3) has been produced. The compressive strength of foamed concrete with RHA has been tested. Concrete with Ratio 1:3 of RHA/Sand has higher compressive strength than ratios 3:1 and 2:2 of RHA/sand for every density. XRD and XRF test has been used to determinate chemical composition and crystalline structure of RHA. The result showed that RHA is an amorphous material-, which amorphous is important thing to pozzolanic process when hydration of cement paste. SEM and EDS test has been conducted to determine microstructure and chemical composition on microstructure of RHA foamed concrete. Amorphous RHA incorporating cement paste produces pozzolanic reaction. It is reduces the porosity and width of interfacial zone in such a way the density is increase.
ABSTRACT Compressed Earth Brick (CEB) as building material has many advantages compared to conven... more ABSTRACT Compressed Earth Brick (CEB) as building material has many advantages compared to conventional fired clay brick in the view of sustainability, moreover if incorporated uncontrolled burnt RHA waste that usually dumped off since it has no commercial value. This paper tried to assess the effect of soil types of clay and laterite in CEB properties which abundantly available in Malaysia. The result showed that the compressive strength of CEB with 20% RHA using clay at 5.5 MPa is better than that of laterite 4.9 MPa, and both exceed that of commercial unfired clay brick from UK.
Assessment of pozzolanic reactivity is commonly based on a direct and indirect method which mostl... more Assessment of pozzolanic reactivity is commonly based on a direct and indirect method which mostly used the electrical conductivity method. However,these methodsare limited by long-duration requirements or need to be done in the laboratory. By modifying the sandbox test to measure the electrical resistivity of Rice Husk Ash (RHA) as pozzolan, this investigation tries to offer a simpler method that can be done in situ. The RHA was heated in the oven with several temperatures varying from 100C to 600C and tested for its electrical resistivity by mixing it with laboratory-gradelime. The value of electrical resistivity is then compared with the value of the Luxan method by using the same materials. The results showed a similar trend with the electrical conductivity method. Hence new pozzolanic classification was proposed in linewith this new pozzolanic assessment.
Building with earth is one of those ancient technologies which still remain alive in the place un... more Building with earth is one of those ancient technologies which still remain alive in the place untouched by industrialization. Innovation, however, has evolved low strength sun dried adobe into burnt clay brick with more strength gained. Mounted interest in searching sustainable green building material has created compressed earth stabilized brick which attract people for its low carbon emission especially in the production stage. This paper demonstrates the properties and benefit of CSEB compared to conventional brick especially in strength and durability. Past researchers has shown that with proper used of stabilizer and with right compressibility will improve the performance of CSEB. The result showed that compressed stabilized earth bricks are comparable with every respect of burnt clay brick.
Increasing the utilization of village resource potential is a part that cannot be separated from ... more Increasing the utilization of village resource potential is a part that cannot be separated from sustainable agriculture and rural development (Sustainable Agriculture and Rural Development). The various resources found in the village are production factors to produce a number of agricultural products or commodities. How much the value of the resources used will determine the yield of agricultural commodities both quantitatively and qualitatively. The ability of the village to provide various infrastructure and facilities and utilize the village's potential optimally is largely determined by the village's ability to fulfill funding for village development. The research method is a participatory approach, namely the Participatory Rural Appraisal (PRA) technique. Data analysis was statistically descriptive and qualitative. The potential of Lubuk Kertang village, among others; Resources and agricultural potential of rainfed lowland rice, ponds. potential natural resources of ma...
Black uncontrolled burnt Rice Husk Ash (RHA) obtained from the boiler of rice mill is a waste pro... more Black uncontrolled burnt Rice Husk Ash (RHA) obtained from the boiler of rice mill is a waste product which usually causing air and water pollution. As a waste, RHA has very little value and commercial use. Hence this study examined the pozzolanic potential of RHA as a cement replacement in the Compressed Stabilized Earth Brick (CSEB) production. This is an experiment-based study that characterized the raw materials used to produce CSEB samples. In the characterization of raw materials, the XRD analysis found that the burning temperature of the RHA in the rice mill boiler was around 700-800°C. Pozzolanic assessments on the RHA found that it possesses pozzolanic characteristic within, and conformed to ASTM C 618 – 03. Besides that, this study has also managed to develop a new method of determining the pozzolanicity of RHA using electrical resistivity approach which is more practical than Luxan conductivity method. In term of pozzolanic conductivity, it was found that the RHA has a va...
Derajat kesehatan pada masyarakat merupakan hal yang paling penting agar menciptakan generasi ban... more Derajat kesehatan pada masyarakat merupakan hal yang paling penting agar menciptakan generasi bangsa yang sukses dan dapat memajukan Indonesia di masa yang akan datang. Penigkatan pengetahuan pola hidup bersih dan sehat sejak dini dengan edukasi cara menggosok gigi, melakukan cuci tangan, menggunakan air bersih, pengelolaan sampah organik, serta perilaku gotong royong menjadi metode dalam pengabdian masyarakat ini. Pengabdian ini dilakukan di Desa Galang Suka, dengan hasil yang didapatkan yaitu masyarakat paham dan mengaplikasikan perilaku pola hidup bersih dan sehat di kehidupan sehari-hari sehingga tercapa peningkatan derajat kesehatan. Perilaku hidup bersih dan sehat telah dipahami dan sudah mulai dilakukan dan diaplikasikan pada kehidupan sehari-hari oleh masyarakat Desa Galang Suka.
Salah satu kegiatan KKN di desa Galang Suka, kecamatan Galang, kabupaten Deli Serdang oleh mahasi... more Salah satu kegiatan KKN di desa Galang Suka, kecamatan Galang, kabupaten Deli Serdang oleh mahasiswa UMSU pada tahun 2019 ini salah satunya adalah untuk memberikan pengetahuan tentang manajemen pembukuan akuntansi untuk UMKM (usaha mikro, kecil dan menengah) yang tergabung didalam unit UP2K (Usaha Peningkatan Pendapatan Keluarga). Pada umumnya pelaku usaha ini bergerak didalam bidang makanan ringan yang dihasilkan sendiri seperti keripik, kerupuk dan kacang2an. Bahkan ada juga keluarga yang memproduksi bahan dasar untuk usaha makanan ringan tersebut seperti tempe. Pada temuan awal didpati bahwa semua anggota UP2K yang ditemui belum mepunyai pembukuan keuangan usaha yang memadai. Pada kegiatan ini dibuatlah satu bentuk pembukuan keuangan akuntansi untuk usaha sederhana, yang diharapkan setelah kegiatan ini, sistem pembukuan tersebut dapat dipergunakan untuk meningkatkan kinerja manajemen usaha.
The production of Compressed Earth Brick (CEB) does not require burning as compared to normal cla... more The production of Compressed Earth Brick (CEB) does not require burning as compared to normal clay brick. However it requires cement to stabilize and bind the clay into brick. This study tried to replace cement with Rice Husk Ash (RHA) as a binding material in the making of CEB. Since RHA is commonly used as a pozzolanic material in strengthening concrete where it react with calcium hydroxide generated from the cement hydration, this study used hydrated lime to mix with RHA to produce the same pozzolanic reaction. The result shows that the mixture with combination 25% RHA and 75% hydrated lime give the best result. Even though the strength do not reach the standard set by MS76 for load bearing brick, however it could be used as non load bearing brick.
Rice Husk Ash (RHA) as sand replacement and filler of Foamed Concrete (FC) has contributed to inc... more Rice Husk Ash (RHA) as sand replacement and filler of Foamed Concrete (FC) has contributed to increase the strength. FC with RHA has increased the slab resistant of impact loading. When RHA granulate filled the FC porous, it would delay the collapsing of cell porous due to the increasing strain of porous walls. The RHA granulate increased the elasticity of the porous walls of FC. Other than that, the walls porous would be more plastic when it was subjected to compressive stress that generated by impact loading. The impact test conducted an instrument drop-weight impact tower to generate various impact velocities of non-deformable impactor on slab of FC and FC with RHA. Results show that FC with RHA created the crater without fragments. Means while, FC clearly create radial crack and fragments within the crater field. However, both slab materials did not generate spalling nor scabbing upon impact and the influence of porosity produces only local damage due to the mechanism of brittle...
One of the potentials owned by Desa Harang Julu, Padang Lawas Regency is livestock, especially go... more One of the potentials owned by Desa Harang Julu, Padang Lawas Regency is livestock, especially goats. However, the excesses caused by farm animals, especially dirt, have a huge impact on health and the environment. In addition, people's habit in processing the manure to be used as compost is less optimal so that agricultural products often do not have maximum impact. Currently, during the Covid 19 pandemic that occurred all over the world, caused an economic recession and decreased income of farming families. With the activities of the training program of making fertilizer from goat manure this gives a new passion impact to farmers. This simple, effective and efficient method of making compost is a new knowledge and experience for farmers in Desa Harang Julu. This fertilizer is made by adding some materials available in nature easily and cheaply, but provides effective results, both in terms of manufacture, process and use and relatively very short use. Thus, this training provi...
IOP Conference Series: Materials Science and Engineering, 2016
Investigation of Rice Husk Ash (RHA) thoroughly under controlled burning is regular issue to obta... more Investigation of Rice Husk Ash (RHA) thoroughly under controlled burning is regular issue to obtain result to produce the amorphous silica that has high pozzolanic reactivity characteristic. This paper offered an observation about characteristic of ground and un-ground of un-controlled burning temperature RHA that were taken from rice millings in Muar, Johor Malaysia. Such tests as X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD), Particle Size Analysis and Specific Area Surface, Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Electron microscope (SEM) were conducted in this investigation to carry out the characteristic of RHA samples. The results show that the RHA was consist approximately 89.90% of silica and the RHA possessed the amorphous particle were dominant than its crystalline part. This proves that the RHA has a big potential as a pozzolanic material considering the silica content and porous structure. In addition, particle size analysis decides whether the pozzolanic reactivity can be increased by grinding process.
... guidance. I extend my gratitude to my second supervisor En. Mustafa Abdullah Al Bakri for his... more ... guidance. I extend my gratitude to my second supervisor En. Mustafa Abdullah Al Bakri for his support and encouragement. ... I am grateful to my husband Josef Hadipramana and my childrenFadhilah Athhar Fauzi Avicenna and Fatharani Mazaya Azka for their ...
ABSTRACT Foamed concrete as aerated concrete widely used in range of constructions application, n... more ABSTRACT Foamed concrete as aerated concrete widely used in range of constructions application, no exception to structure shield. As structure shield is important to resist on impact loading. Whilst, Rice Husk Ash (RHA) as agro-waste potentials as filler for foamed concrete. RHA that is produced by uncontrolled burning under 700oC during ± 6 hours obtain the granules contain the carbon and porous. The granules of RHA may fill the porous in matrix foamed concrete without remove the characteristic the foamed concrete its self-as aerated concrete. This investigation RHA has been used as a replacement for fine aggregate. Target density 1800 kg/m3 of foamed concrete both of with and without RHA have been produced to compare their strength and characteristic of impact resistance. SEM and EDS test has been conducted to determine microstructure and chemical composition of foamed concrete with RHA. The results showed that granules of RHA filled the porous and bonded with the denser part into matrix. The presence of granules of RHA has been changing the role of the air cell of porous in foamed concrete when it was subjected to impact loading. Also the granules of RHA give the foamed concrete denser without losing its characteristic of porous entirely.
ABSTRACT Recently, foamed concrete has become a popular construction material that can be used in... more ABSTRACT Recently, foamed concrete has become a popular construction material that can be used in wide range of constructions application. Whilst the Rice Husk Ash (RHA) as agro-waste is contain high amount of silicon dioxide. RHA is produced in significant amount every year from agriculture countries. RHA has potential as a material to produce foamed concrete. In this research RHA has been used as a replacement for fine aggregate which used in construction as ordinary concrete material. In this study, foamed concrete with target density 1400, 1600 and 1800 kg/m(3) has been produced. The compressive strength of foamed concrete with RHA has been tested. Concrete with Ratio 1:3 of RHA/Sand has higher compressive strength than ratios 3:1 and 2:2 of RHA/sand for every density. XRD and XRF test has been used to determinate chemical composition and crystalline structure of RHA. The result showed that RHA is an amorphous material-, which amorphous is important thing to pozzolanic process when hydration of cement paste. SEM and EDS test has been conducted to determine microstructure and chemical composition on microstructure of RHA foamed concrete. Amorphous RHA incorporating cement paste produces pozzolanic reaction. It is reduces the porosity and width of interfacial zone in such a way the density is increase.
ABSTRACT Compressed Earth Brick (CEB) as building material has many advantages compared to conven... more ABSTRACT Compressed Earth Brick (CEB) as building material has many advantages compared to conventional fired clay brick in the view of sustainability, moreover if incorporated uncontrolled burnt RHA waste that usually dumped off since it has no commercial value. This paper tried to assess the effect of soil types of clay and laterite in CEB properties which abundantly available in Malaysia. The result showed that the compressive strength of CEB with 20% RHA using clay at 5.5 MPa is better than that of laterite 4.9 MPa, and both exceed that of commercial unfired clay brick from UK.
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