The use of GPR （ground penetrating radar） as an auxiliary tool in geotechnical and environmental site investigations has increased in Brazil during the past few years. GPR has been used to delineate contamination pl...The use of GPR （ground penetrating radar） as an auxiliary tool in geotechnical and environmental site investigations has increased in Brazil during the past few years. GPR has been used to delineate contamination plumes, to aid in geological modelling, to detect buried structures and in archaeological surveys. This paper describes and discusses the results ofa GPR site investigation carried out at Gramacho Municipal Solid Waste Landfill in the State of Rio de Janeiro, Brazil. A field study was conducted to detect failure surfaces in its slopes and within the waste mass. The results have shown that： （l） Slip surfaces could be indicated by small continuous voids within the waste mass since there is a good contrast between the dielectric constant of air and municipal waste; （2） Greenhouse gases pools could also be indicated by large voids within the waste mass since there is a good contrast between the dielectric constant of carbon dioxide, methane and municipal waste; （3） Leachate pools present a high electric conductivity that could be easily detected by GPR.展开更多
Brazil is the 4th biggest dimension stone producer and the 7th greatest exporter. Due to its large stone production, Brazil faces a challenge, which is to find appropriate destination to the huge volume of generated w...Brazil is the 4th biggest dimension stone producer and the 7th greatest exporter. Due to its large stone production, Brazil faces a challenge, which is to find appropriate destination to the huge volume of generated waste throughout the process, mostly slurry from sawing process. Predominantly, Brazilian production comes from the state of Espirito Santo. In this region, frequently the slurry waste generated is stocked in industries own area or even dumped on unauthorized open sites. Researchers search for applications to the slurry stone waste as an industrial raw material. However, a gap persists between the results already achieved and a methodology to rational and economical affordable application. This paper aims to analyze physical, chemical and mineralogical the powder wastes produced by conventional metallic blades loom （DSPW-CL） and diamond wire loom （DSPW-DL） during stone processing to promote its valorization as a building construction material. This could mitigate dimension stone industry impact and improve life quality around the areas of production.展开更多
文摘The use of GPR （ground penetrating radar） as an auxiliary tool in geotechnical and environmental site investigations has increased in Brazil during the past few years. GPR has been used to delineate contamination plumes, to aid in geological modelling, to detect buried structures and in archaeological surveys. This paper describes and discusses the results ofa GPR site investigation carried out at Gramacho Municipal Solid Waste Landfill in the State of Rio de Janeiro, Brazil. A field study was conducted to detect failure surfaces in its slopes and within the waste mass. The results have shown that： （l） Slip surfaces could be indicated by small continuous voids within the waste mass since there is a good contrast between the dielectric constant of air and municipal waste; （2） Greenhouse gases pools could also be indicated by large voids within the waste mass since there is a good contrast between the dielectric constant of carbon dioxide, methane and municipal waste; （3） Leachate pools present a high electric conductivity that could be easily detected by GPR.
文摘Brazil is the 4th biggest dimension stone producer and the 7th greatest exporter. Due to its large stone production, Brazil faces a challenge, which is to find appropriate destination to the huge volume of generated waste throughout the process, mostly slurry from sawing process. Predominantly, Brazilian production comes from the state of Espirito Santo. In this region, frequently the slurry waste generated is stocked in industries own area or even dumped on unauthorized open sites. Researchers search for applications to the slurry stone waste as an industrial raw material. However, a gap persists between the results already achieved and a methodology to rational and economical affordable application. This paper aims to analyze physical, chemical and mineralogical the powder wastes produced by conventional metallic blades loom （DSPW-CL） and diamond wire loom （DSPW-DL） during stone processing to promote its valorization as a building construction material. This could mitigate dimension stone industry impact and improve life quality around the areas of production.
