Inicio > Tecnología, ingeniería, agricultura > Ciencia, ingeniería y tecnología medioambientales > Material de baixa resistência controlada com utilização de cinzas de centrais térmicas
Material de baixa resistência controlada com utilização de cinzas de centrais térmicas

Material de baixa resistência controlada com utilização de cinzas de centrais térmicas

Shojaeddin Jamali / Sivakumar Naganathan

98,84 €
IVA incluido
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Ciencia, ingeniería y tecnología medioambientales
ISBN:
9786630237061
98,84 €
IVA incluido
Disponible

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O material de baixa resistência controlada (CLSM) é um material de enchimento fluido e autocompactável, utilizado principalmente como aterro. Este livro apresenta a investigação realizada sobre misturas de CLSM preparadas com NaOH, cal, cinzas de fundo, cinzas volantes e água. Foi realizada uma série de ensaios no estado fresco, nomeadamente sobre fluidez, densidade no estado fresco, resistência à segregação e sangramento. As misturas de CLSM foram também submetidas a ensaios de absorção de água, densidade após endurecimento, velocidade de pulso ultrassónico e resistência à compressão no estado endurecido. A fluidez de todas as amostras é de 300 ± 20 mm, e o aumento da relação cinza de fundo/ligante reduz a fluidez da mistura. Todas as misturas de CLSM foram classificadas como de peso normal. Todas as amostras apresentaram boa resistência à segregação, com comportamento não corrosivo. As propriedades de durabilidade do CLSM foram satisfatórias. A resistência à compressão das misturas variou entre 1,1 MPa e 3,35 MPa. O aumento da cal e do NaOH conduz a um aumento da resistência apenas em determinadas proporções. Conclui-se que as misturas de CLSM produzidas na investigação são isentas de cimento, possuem boas propriedades mecânicas e de durabilidade e podem ser utilizadas em aplicações práticas.

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