2012
DOI: 10.1590/s0366-69132012000200018
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O efeito do tratamento térmico a 300 ºC na conectividade da estrutura de poros de argamassas de cimento Portland reforçadas por fibras de polipropileno

Abstract: A degradação térmica a 300 ºC de argamassas de cimento Portland reforçada por fibras de polipropileno foi investigada. Foi proposto um modelo computacional para a avaliação qualitativa da conectividade da estrutura de poros. Os resultados revelaram a degradação das argamassas com a temperatura dos tratamentos térmicos. A conectividade da estrutura de poros aumentou com a temperatura do tratamento térmico para as argamassas com fibra. Os resultados também mostraram um aumento da conectividade da estrutura de po… Show more

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“…Additional effects included rheological changes that affected adhesiveness of coatings (Monte;Figueiredo, 2012) and resistance to traction and compression (Bendjillali et al, 2011). Amaral et al (2012) noted that artificial polymer fibers added to concrete and cement mortars had advantageous effects at high temperatures. The fibers increased water retention and, by extension, porosity and thermal insulation (Monte;Figueiredo, 2012); Centofante & Dagostini, 2014).…”
Section: Introductionmentioning
confidence: 99%
“…Additional effects included rheological changes that affected adhesiveness of coatings (Monte;Figueiredo, 2012) and resistance to traction and compression (Bendjillali et al, 2011). Amaral et al (2012) noted that artificial polymer fibers added to concrete and cement mortars had advantageous effects at high temperatures. The fibers increased water retention and, by extension, porosity and thermal insulation (Monte;Figueiredo, 2012); Centofante & Dagostini, 2014).…”
Section: Introductionmentioning
confidence: 99%