Salomon Levy - Academia.edu (original) (raw)
Uploads
Papers by Salomon Levy
the last decades, the concept of sustainable construction has been addressed in several engineeri... more the last decades, the concept of sustainable construction has been addressed in several engineering projects in the world. The search of materials that provide more durable projects and with long service life is a worldwide consensus. Many researchers do not consider the concrete an attractive material from the standpoint of sustainable construction. This article aims to demystify this scenario and apply high performance concrete in structural columns aiming to sustainability issues. It is a case study of a building located in the municipality of Sao Paulo. It was noted that the concept of sustainable construction is absolutely in line with the use of high performance concrete in structural columns.
Exacta, 2008
Este artigo apresenta uma síntese da evolução histórica da tecnologia de preparo e utilização do ... more Este artigo apresenta uma síntese da evolução histórica da tecnologia de preparo e utilização do concreto como material de construção. Relaciona datas e obras que empregaram esse material desde 5.600 anos a. C. e o consagraram como um dos melhores amigos do homem, uma vez que sempre foi utilizado na construção de residências, obras de arte, aquedutos e templos religiosos, fundamentalmente visando ao bem-estar da raça humana. Entre as inúmeras obras citadas, há uma relação de modernas construções de concreto de elevado desempenho, as quais comprovam sua versatilidade arquitetônica e estrutural, além de sua durabilidade.
Exacta, 2007
In this paper, an analysis was conducted on the influence of the use of 20%, 50% and 100% content... more In this paper, an analysis was conducted on the influence of the use of 20%, 50% and 100% contents of two types of fine recycled aggregates (from demolish concrete and from old masonry) on the following properties of concrete: water absorption by immersion, pore volume, carbonation and resistivity. This analysis was not restricted to compare mixtures from a table of results. All the analysis was based on concrete family behavior. The Mix Design Nomograms (MDN) was made for concrete families: one as reference and six others with different recycled contents to replace the natural fine aggregate. The MDN obtained for the properties studied permitted compare class 20MPa, 30MPa and 40MPa concretes. The results obtained indicate that the carbonation depth reached a minimum and the resistivity reached a maximum when 50% contents of fine recycled masonry aggregates were used. However, this tendency was not repeated for pore volume and water absorption. Thus, it should conclude that the dura...
Cement and Concrete Research, 2004
the last decades, the concept of sustainable construction has been addressed in several engineeri... more the last decades, the concept of sustainable construction has been addressed in several engineering projects in the world. The search of materials that provide more durable projects and with long service life is a worldwide consensus. Many researchers do not consider the concrete an attractive material from the standpoint of sustainable construction. This article aims to demystify this scenario and apply high performance concrete in structural columns aiming to sustainability issues. It is a case study of a building located in the municipality of Sao Paulo. It was noted that the concept of sustainable construction is absolutely in line with the use of high performance concrete in structural columns.
Exacta, 2008
Este artigo apresenta uma síntese da evolução histórica da tecnologia de preparo e utilização do ... more Este artigo apresenta uma síntese da evolução histórica da tecnologia de preparo e utilização do concreto como material de construção. Relaciona datas e obras que empregaram esse material desde 5.600 anos a. C. e o consagraram como um dos melhores amigos do homem, uma vez que sempre foi utilizado na construção de residências, obras de arte, aquedutos e templos religiosos, fundamentalmente visando ao bem-estar da raça humana. Entre as inúmeras obras citadas, há uma relação de modernas construções de concreto de elevado desempenho, as quais comprovam sua versatilidade arquitetônica e estrutural, além de sua durabilidade.
Exacta, 2007
In this paper, an analysis was conducted on the influence of the use of 20%, 50% and 100% content... more In this paper, an analysis was conducted on the influence of the use of 20%, 50% and 100% contents of two types of fine recycled aggregates (from demolish concrete and from old masonry) on the following properties of concrete: water absorption by immersion, pore volume, carbonation and resistivity. This analysis was not restricted to compare mixtures from a table of results. All the analysis was based on concrete family behavior. The Mix Design Nomograms (MDN) was made for concrete families: one as reference and six others with different recycled contents to replace the natural fine aggregate. The MDN obtained for the properties studied permitted compare class 20MPa, 30MPa and 40MPa concretes. The results obtained indicate that the carbonation depth reached a minimum and the resistivity reached a maximum when 50% contents of fine recycled masonry aggregates were used. However, this tendency was not repeated for pore volume and water absorption. Thus, it should conclude that the dura...
Cement and Concrete Research, 2004