Дисертації з теми "Lime Stabilized Soil"
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Gebretsadik, Alex Gezahegn. "Shear Resistance Degradation of Lime –Cement Stabilized Soil During Cyclic Loading." Thesis, KTH, Jord- och bergmekanik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-141196.
Повний текст джерелаSZELIGA, LUCIANNA. "EXPERIMENTAL STUDY OF SANDY SOIL STABILIZED WITH MUNICIPAL SOLID WASTE ASHES AND LIME." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2014. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=24405@1.
Повний текст джерелаCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
Este estudo apresenta o comportamento de um solo arenoso estabilizado com cinzas obtidas através da incineração de Resíduo Sólido Urbano (RSU) e cal. Através de um estudo experimental, objetiva-se avaliar a aplicabilidade de misturas solo-cinza e solo-cinza volante-cal em obras geotécnicas como, por exemplo, camadas de aterros sanitários, aterros sobre solos moles e estabilização de taludes. Para isso, foram realizados ensaios de caracterização física, química e mecânica (ensaios triaxiais CID) para os materiais envolvidos. Para as misturas solo-cinza volante-cal, adicionou-se 3 porcento de cal em substituição ao peso seco das cinzas. Foram avaliadas as influências do teor de cinza (30 e 40 porcento) e tipo de cinza (volante - CV e fundo - CF), bem como o tempo de cura (0, 60 e 90 dias) para misturas com cinza volante e cal. Os resultados mostram que tanto as misturas com CV, como CF, apresentam resultados satisfatórios. Para ambas as cinzas, as porcentagens de 30 e 40 porcento apresentaram resultados similares, podendo-se adotar o valor de 40 porcento como teor ótimo, uma vez que proporciona a utilização de uma maior quantidade de resíduo. Comparando-se as cinzas, a CF apresentou resultados mais satisfatórios que a CV. Para as misturas com cura, observou-se que no tempo de 60 dias o material sofreu um maior ganho de resistência. Foram utilizados dois métodos de moldagem de corpo de prova para o ensaio com cura, obtendo-se melhor resultado para o método onde a cura era realizada em um corpo de prova pré-moldado. Portanto o uso das cinzas de RSU em mistura com este tipo de solo se mostra satisfatório, uma vez que apresentou um bom comportamento, contribui com o menor consumo de material natural e proporciona uma destinação ambientalmente correta deste resíduo.
This study presents the behavior of a sandy soil stabilized with municipal solid waste ash, and lime. In order to evaluate the applicability of mixtures soil-ash and soil-fly ash-lime for using in geotechnical projects as layers of landfills, embankment on soft soils and slope stability, an experimental campaign is presented. Thus, physical, chemical and mechanical (isotropically consolidated-drained triaxial test) characterization tests were performed for each material and mixtures. It was used 3 percent of lime in the mixtures soil- fly ash-lime, being added in replacement to the dry weight of fly ash. Were evaluated the influence of ash content (30 and 40 percent), type of ash (fly ash and bottom ash) and curing time (0, 60 and 90 days) for mixtures containing fly ash and lime. The results have shown that mixtures with both kinds of ashes present a satisfactory behavior, increasing or maintaining the shear strength parameters similar to the pure material. For both kinds of ashes the variation of the content has not provided significant changes in the strength parameters, therefore, 40 percent can be considered as best content, once it provides a bigger destination of the residue. Comparing fly and bottom ash, the last has presented better results than fly ash. For mixtures with lime and cure, it has been observed better results for 60 days of cure, with greater gain of strength. Two molding methods have been used for preparing the mixture specimen, being obtained a better result with pre modeled specimen. Therefore, the use of municipal solid waste ash for stabilizing this kind of soil for using in the cited works, could minimize the current problems of waste disposal, contribute with the reduction of consumption of natural resources and give a noble use for this material.
Garibay, Jose Luis. "Guideline for pulverization of stabilized bases." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Повний текст джерелаMohn, Douglas M. "Impact of Gypsum Bearing Water On Soil Subgrades Stabilized With Lime or Portland Cement." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1430836216.
Повний текст джерелаKennedy, Kalub S. "Evaluation of Chemically Stabilized Subgrades with High Sulfate Concentrations." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1554807825765069.
Повний текст джерелаMalanconi, Maurício. "Considerações sobre misturas de solos tropicais estabilizados quimicamente para uso como camada de pavimento urbano." Universidade Federal de São Carlos, 2012. https://repositorio.ufscar.br/handle/ufscar/4341.
Повний текст джерелаIn view of the lack of basic infrastructure in Brazilian cities, especially in regard to paving networks, it is of fundamental importance a study to ascertain the geological characteristics of the materials available and their potential use as pavement layer after incorporation of additives. This thesis aims at determining, in the laboratory, the mechanical results of soiladditive mixture, in order to evaluate the structural performance of chemically stabilized tropical soils. It also brings, specific objectives, comparing traditional additives - cement and lime - with another additive available in the brazilian market; analyzing the possibility of using these stabilized soils in urban pavement layers and obtaining reference results that may provide subsidies for pavement designers. This research develops from the collection of four (4) soil samples at different points in São Carlos/SP, with whom has been conducted a series of tests: California Bearing Ratio, Expansion and Compression Test. There was an evaluation of soils by determining the mechanical properties of the mixed soil and additive, in terms of carrying capacity, simple compression and expansion. The results were obtained after compression of the mixture in the test specimens and the use of standardized testing methodologies. After a long series of laboratory tests developed for each sample, a critical analysis of structural performance, primarily in its natural condition, then with the structural behavior of each of them, after the incorporation of additives. Research has shown that the best structural behavior of all samples collected in the different conditions of stabilization occurred with the sample ST-03 which, stabilized with 6% cement, obtained in laboratory satisfactory performance for use as the base layer of pavement.
Em vista da carência de infra-estrutura básica nas cidades brasileiras, principalmente no que se refere às redes de pavimentação, faz-se de fundamental importância um estudo que permita conhecer as características geológicas dos materiais disponíveis e as suas possibilidades de utilização como camada de pavimento após a incorporação de aditivos. Esta dissertação tem como objetivo principal determinar, em laboratório, os resultados mecânicos da mistura soloaditivo, a fim de se avaliar o desempenho estrutural de solos tropicais estabilizados quimicamente. Traz ainda, como objetivos específicos, comparar os aditivos tradicionais - cimento e cal - com uma opção de aditivo disponível no mercado brasileiro; analisar a possibilidade de utilização desses solos estabilizados em camadas de pavimentos urbanos e obter resultados de referência que venham a fornecer subsídios aos projetistas de pavimento. Esta pesquisa desenvolve-se a partir da coleta de 4 (quatro) amostras de solo em diferentes pontos do município de São Carlos/S.P., com as quais se realizou uma série de ensaios de Capacidade de Suporte (CBR), Expansão (EXP.) e de Resistência a Compressão Simples (RC). Fez-se a avaliação dos solos tropicais através da determinação das propriedades mecânicas das misturas de solo e aditivo, em termos de capacidade de suporte, expansão e compressão simples. Os resultados foram obtidos após a compactação da mistura, em corpos de prova e com o emprego das metodologias de ensaio normalizadas. Após uma larga série de ensaios de laboratório, desenvolveu-se, para cada amostra, uma análise crítica do desempenho estrutural, primeiramente, em sua condição natural e, depois, no comportamento estrutural de cada uma delas, após a incorporação dos aditivos supracitados. A pesquisa demostrou que o melhor comportamento estrutural de todas as amostras coletadas, nas diversas condições de estabilização, ocorreu com a amostra ST-03 que, estabilizada com 6% de cimento, obteve em laboratório desempenho satisfatório para emprego como camada de base de pavimento.
Abdi, Mahmoud Reza. "Effect of calcium sulphate on lime-stabilised kaolinite." Thesis, University of South Wales, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304789.
Повний текст джерелаVenkata, Swamy B. "Stabilisation Of Black Cotton Soil By Lime Piles." Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/219.
Повний текст джерелаVenkata, Swamy B. "Stabilisation Of Black Cotton Soil By Lime Piles." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/219.
Повний текст джерелаButtress, Adam James. "Physicochemical behaviour of artificial lime stabilised sulfate bearing cohesive soils." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/14463/.
Повний текст джерелаParker, John Wesley. "Evaluation of Laboratory Durability Tests for Stabilized Subgrade Soils." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2393.pdf.
Повний текст джерелаVeith, Gabriele Helene. "Engineering properties of sulphate-bearing clay soils stabilised with lime-activated ground granulated blast furnace slag (GGBS)." Thesis, University of South Wales, 2000. https://pure.southwales.ac.uk/en/studentthesis/engineering-properties-of-sulphatebearing-clay-soils-stabilised-with-limeactivated-ground-granulated-blast-furnace-slag-gcbs(65f3da02-94cc-4db6-887c-8d94bead65b4).html.
Повний текст джерелаVizcarra, S., S. Vizcarra, I. Lujan, M. Soto, and G. Durán. "Experimental analysis of the addition of rice husk ash to the clayey subgrade of a road stabilized with lime." Institute of Physics Publishing, 2020. http://hdl.handle.net/10757/651791.
Повний текст джерелаKassim, Kharul Anuar. "The geotechnical properties of lime and ash stabilised cohesive soils and their use in design." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242369.
Повний текст джерелаGu, Huanda. "Environmental Geotechnical Approach on the Application of Ferrum-Series Lime Stabilized Soils to Road Base and Subgrade." Kyoto University, 1998. http://hdl.handle.net/2433/182351.
Повний текст джерелаJha, Arvind Kumar. "Role of Gypsum in Stabilisation of Expansive Soil with Lime/Fly Ash-A Micro-Mechanistic Study." Thesis, 2016. https://etd.iisc.ac.in/handle/2005/4355.
Повний текст джерелаRosenberk, Ranjith Samuel. "Life cycle assessment of bio-material stabilized expansive soils." 2008. http://hdl.handle.net/10106/1140.
Повний текст джерелаChasi, Brian Takaona. "Stockpile life of foam stabilised material and the implications for labour intensive construction." Thesis, 1998. http://hdl.handle.net/10539/22409.
Повний текст джерелаVarious studies have been done to show that labour-based construction can meet the high standards normally required in the construction of roads. The organisational requirements that were needed to ensure the efficient use of labour have also been dealt with in various studies. Tile need for alleviation of poverty, unemployment and the negative social impact thereof by increasing the labour input in construction is understood by all concerned. A further step is however necessary before the idea of increasing the . labour component in any kind of roadwork can be taken seriously. Engineers need to move forward from the policy and organisational issues associated with labour intensive construction and start to provide designers with sound and innovative engineering solutions to overcome the hurdles experienced on the ground. The study looks at the process of foam bitumen stabilisation of soils and gravels with a view of utilising this innovative method for labour intensive construction. The material after having been stabilised can be placed in a stockpile. Actual durations that the material can safely remain in stockpile have been determined in this study to be in excess of six months for recycled asphalt and in excess of four months for the foam stabilised sand. Foam stabilised gravel was also studied and showed that after a year in stockpile the material failed probably due to a weakening of the bitumen and aggregate bond. Covering the stockpiled material did not show any significant difference to that of a similar uncovered stockpile. The position within the stockpile also did not have much effect on the engineering properties of the stoc piled material. The fact that the foam stabilised material can be worked on when cold and that it can be stockpiled for several months implies that the material is labour friendly and can be used in labour intensive construction of road base course layers or wearing course layers.
AC2017
Esfeller, Michael Watts Jr. "Electrochemical assessment and service-life prediction of mechanically stabilized earth walls backfilled with crushed concrete and recycled asphalt pavement." 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1765.
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