{"title":"RESEARCH ON THE APPLICATION OF GEOPOLYMER CONCRETE FOR PRESTRESSED GIRDER STRUCTURES OF BRIDGES TOWARDS SUSTAINABLE DEVELOPMENT","authors":"Nguyen Binh Ha","doi":"10.21660/2023.110.3859","DOIUrl":"https://doi.org/10.21660/2023.110.3859","url":null,"abstract":"","PeriodicalId":47135,"journal":{"name":"International Journal of GEOMATE","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134912236","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}
{"title":"A STUDY OF THE PHYSICAL PROPERTIES AND STRUCTURAL DEVELOPMENT OF CLAYS IN THE SHALLOW METHANE HYDRATE FIELDS","authors":"Koichi Nakamura","doi":"10.21660/2023.110.3950","DOIUrl":"https://doi.org/10.21660/2023.110.3950","url":null,"abstract":"","PeriodicalId":47135,"journal":{"name":"International Journal of GEOMATE","volume":"1484 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134912244","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}
{"title":"USE OF GIS TECHNOLOGIES FOR ZONING URBAN AREAS TAKING INTO ACCOUNT ENGINEERING-GEOLOGICAL CONDITIONS","authors":"Nurgul Alibekova","doi":"10.21660/2023.110.3970","DOIUrl":"https://doi.org/10.21660/2023.110.3970","url":null,"abstract":"","PeriodicalId":47135,"journal":{"name":"International Journal of GEOMATE","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134912246","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}
{"title":"MICROZONATION OF SEISMIC PARAMETERS IN GEOLOGICAL FORMATION UNITS ALONG THE OPAK RIVER USING MICROTREMOR MEASUREMENTS","authors":"Nugroho Budi Wibowo","doi":"10.21660/2023.110.4017","DOIUrl":"https://doi.org/10.21660/2023.110.4017","url":null,"abstract":"","PeriodicalId":47135,"journal":{"name":"International Journal of GEOMATE","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134912451","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}
{"title":"NUMERICAL ASSESSMENT OF SUBSEA PIPELINE PRESSURE CAPACITY DUE TO EXTERNAL CIRCUMFERENTIALSEMI-ELLIPTICALCRACK","authors":"J. Santoso","doi":"10.21660/2023.108.3734","DOIUrl":"https://doi.org/10.21660/2023.108.3734","url":null,"abstract":"","PeriodicalId":47135,"journal":{"name":"International Journal of GEOMATE","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48452560","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}
: In recent years, due to the effects of climate change, slope disasters have frequently been occurring and causing severe damage in many places across the globe. To reduce the damage from slope disasters, residents need to correctly understand the hazards and protect themselves. In this study, we attempted to evaluate the risks of slope disasters in local residential areas and to analyze the residents' opinions gathered through a workshop on their participation in the monitoring of slope disasters using tilt sensors for prevention. As a result, the overview of the evaluation items for high-risk slopes and their contents was clarified, which had been tacit knowledge, as well as the structure of the local residents' concerns about the slopes and their expectations for monitoring utilizing tilt sensors to take evacuation action. To help solve the problems, we installed tilt sensors in areas with high risks of collapse, and we built a mechanism that allows the local residents to monitor the slopes and take evacuation actions. An alert is issued before a slope failure occurs, and it functions as an "evacuation switch", which leads to residents taking evacuation actions to protect themselves. It is expected that tilt sensor monitoring will be widely used in voluntary disaster prevention activities in the region.
{"title":"RESIDENT PARTICIPATORY MONITORING OF SLOPE DISASTERS USING TILT SENSORS","authors":"Zhijun Tang","doi":"10.21660/2023.108.s8643","DOIUrl":"https://doi.org/10.21660/2023.108.s8643","url":null,"abstract":": In recent years, due to the effects of climate change, slope disasters have frequently been occurring and causing severe damage in many places across the globe. To reduce the damage from slope disasters, residents need to correctly understand the hazards and protect themselves. In this study, we attempted to evaluate the risks of slope disasters in local residential areas and to analyze the residents' opinions gathered through a workshop on their participation in the monitoring of slope disasters using tilt sensors for prevention. As a result, the overview of the evaluation items for high-risk slopes and their contents was clarified, which had been tacit knowledge, as well as the structure of the local residents' concerns about the slopes and their expectations for monitoring utilizing tilt sensors to take evacuation action. To help solve the problems, we installed tilt sensors in areas with high risks of collapse, and we built a mechanism that allows the local residents to monitor the slopes and take evacuation actions. An alert is issued before a slope failure occurs, and it functions as an \"evacuation switch\", which leads to residents taking evacuation actions to protect themselves. It is expected that tilt sensor monitoring will be widely used in voluntary disaster prevention activities in the region.","PeriodicalId":47135,"journal":{"name":"International Journal of GEOMATE","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43473734","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}
{"title":"UNDERSTANDING DOWNSTREAM SLOPE FAILURE IN EARTH DAMS: CAUSES AND REMEDIES -A CASE STUDY OF TRIEU THUONG NO.2 DAM, QUANG TRI, VIETNAM","authors":"The Viet Tran","doi":"10.21660/2023.108.3798","DOIUrl":"https://doi.org/10.21660/2023.108.3798","url":null,"abstract":"","PeriodicalId":47135,"journal":{"name":"International Journal of GEOMATE","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43965396","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}
: Recently, spent bleaching earth ash (SBEA) which is extracted and calcined from spent bleaching earth waste from a palm oil refinery plant, has been used as partial cement replacement. In this study, the SBEA was ground into smaller particle sizes through a grinding process. The effect of unground spent bleaching earth ash (USBEA) and ground-spent bleaching earth ash (GSBEA) on the sulfate attack resistance of mortar was investigated in this study. The characterization of USBEA and GSBEA was determined in terms of particle size, specific surface area, chemical compositions, and microstructural properties. Their effects on pozzolanic activity were determined in terms of the strength activity index. Then, the expansion of the mortar bar containing 40% of USBEA and GSBEA due to sulfate attack was determined to investigate the sulfate attack resistance of mortar containing USBEA and GSBEA. The microstructural changes of mortar against sulfate attack were determined by using x-ray diffraction, scanning electron microscopy and thermogravimetric analysis. Results indicated that the strength activity index (SAI) value of mortar containing 40% of GSBEA was the highest among the specimens. Furthermore, the expansion of mortar bars containing 40% of GSBEA was the lowest, with 0.01% at 6 months. The microstructural results of mortar also confirmed that the incorporation of 40% of GSBEA with the compact microstructure with calcium silicate hydrate (CSH) and less ettringite was found compared to other specimens. This shows that the inclusion of GSBEA enhances the sulfate attack resistance of mortar.
{"title":"PERFORMANCE OF MORTAR CONTAINING GROUND SPENT BLEACHING EARTH ASH AGAINST SULFATE ATTACK","authors":"R. A. Abd Rahman","doi":"10.21660/2023.108.3622","DOIUrl":"https://doi.org/10.21660/2023.108.3622","url":null,"abstract":": Recently, spent bleaching earth ash (SBEA) which is extracted and calcined from spent bleaching earth waste from a palm oil refinery plant, has been used as partial cement replacement. In this study, the SBEA was ground into smaller particle sizes through a grinding process. The effect of unground spent bleaching earth ash (USBEA) and ground-spent bleaching earth ash (GSBEA) on the sulfate attack resistance of mortar was investigated in this study. The characterization of USBEA and GSBEA was determined in terms of particle size, specific surface area, chemical compositions, and microstructural properties. Their effects on pozzolanic activity were determined in terms of the strength activity index. Then, the expansion of the mortar bar containing 40% of USBEA and GSBEA due to sulfate attack was determined to investigate the sulfate attack resistance of mortar containing USBEA and GSBEA. The microstructural changes of mortar against sulfate attack were determined by using x-ray diffraction, scanning electron microscopy and thermogravimetric analysis. Results indicated that the strength activity index (SAI) value of mortar containing 40% of GSBEA was the highest among the specimens. Furthermore, the expansion of mortar bars containing 40% of GSBEA was the lowest, with 0.01% at 6 months. The microstructural results of mortar also confirmed that the incorporation of 40% of GSBEA with the compact microstructure with calcium silicate hydrate (CSH) and less ettringite was found compared to other specimens. This shows that the inclusion of GSBEA enhances the sulfate attack resistance of mortar.","PeriodicalId":47135,"journal":{"name":"International Journal of GEOMATE","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42246271","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：