<b>Time-enhanced strength increase of an alluvial clay, typical of the northeastern region of Brazil, mixed with different cement doages</b> - doi: 10.4025/actascitechnol.v35i3.16042

Autores

  • Geraldo Vanzolini Moretti Moretti Engenharia Consultiva Ltda/SP
  • João Alexandre Paschoalin Filho Universidade Nove de Julho
  • David de Carvalho Universidade Estadual de Campinas
  • António Viana da Fonseca Universidade do Porto/Portugal

DOI:

https://doi.org/10.4025/actascitechnol.v35i3.16042

Palavras-chave:

alluvial soil, compressive strength, soil-cement

Resumo

Time-enhanced strength increase of alluvial clay mixed with different cement dosages is provided. After clay collection, water was added to the soft clay samples until the moisture rate reached its liquid limit. Doses 200, 400 and 600 kg m-³ were used for the soil/cement mixture. The cement consisted of the Portland type with blast furnace slag (compressive strength ≥ 32 MPa for 28 days) and water/cement ratio was 0.8. After molding, specimens were immersed in water, and subsequently taken to failure in laboratory tests of uniaxial compression, according to the recommendations of the Brazilian Association of Technical Standards (ABNT, 2003), after 7, 28, 56 and 120 days. Soil samples were collected on the coast of the state of Pernambuco, Brazil. The site is characterized by a surface homogeneous layer composed of soft organic clay-silt to very soft clay, with a gray color and a thickness ranging between 12 and 15m. The groundwater level is found at 1.60m depth. Parameters verified the compressive strength for each mixture under analysis and their time-enhanced resistance increase.

 

 

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Biografia do Autor

Geraldo Vanzolini Moretti, Moretti Engenharia Consultiva Ltda/SP

Mestre em Engenharia e diretor técnico da Moretti Engenharia Consultiva Ltda/São Paulo

João Alexandre Paschoalin Filho, Universidade Nove de Julho

Professor Doutor do programa de mestrado em gestão ambiental e sustentabilidade

David de Carvalho, Universidade Estadual de Campinas

Professor Doutor Associado da Faculdade de Engenharia Agrí­cola da Universidade Estadual de Campinas

António Viana da Fonseca, Universidade do Porto/Portugal

Professor da Faculdade de Engenharia da Universidade do Porto-Portugal

Publicado

2013-02-27

Como Citar

Moretti, G. V., Paschoalin Filho, J. A., Carvalho, D. de, & Fonseca, A. V. da. (2013). <b>Time-enhanced strength increase of an alluvial clay, typical of the northeastern region of Brazil, mixed with different cement doages</b> - doi: 10.4025/actascitechnol.v35i3.16042. Acta Scientiarum. Technology, 35(3), 457–462. https://doi.org/10.4025/actascitechnol.v35i3.16042

Edição

Seção

Engenharia Civil