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2021
DOI: 10.6008/cbpc2179-6858.2021.005.0041
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Influência da porosidade na condutividade térmica, resistência mecânica e coeficiente de permeabilidade do concreto permeável

Abstract: Visando o desenvolvimento de tecnologias de adaptação e mitigação dos efeitos do aumento de temperatura no setor da construção civil, de modo a promover melhor desempenho térmico-mecânico, esse estudo teve por objetivo avaliar a influência da porosidade na condutividade térmica do concreto permeável, avaliando sua resistência mecânica e coeficiente de permeabilidade. O concreto permeável foi dosado pelo método de Nguyen et al. (2014) com índices de vazios de 15, 20, 25 e 30%. Determinou-se o coeficiente de per… Show more

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“…The thermal conductivity tends to be higher in mixes where the w/b ratio is closer to RC. This can be seen in the results shown in Figure 3, and was associated with the higher porosity of the samples with higher water content, leading to a lower thermal conductivity [31,[52][53][54]. This may also mean that the thermal effect of MgO is more effective in mixes with lower w/b ratios.…”
Section: Thermal Conductivitymentioning
confidence: 88%
“…The thermal conductivity tends to be higher in mixes where the w/b ratio is closer to RC. This can be seen in the results shown in Figure 3, and was associated with the higher porosity of the samples with higher water content, leading to a lower thermal conductivity [31,[52][53][54]. This may also mean that the thermal effect of MgO is more effective in mixes with lower w/b ratios.…”
Section: Thermal Conductivitymentioning
confidence: 88%