4. Justification for the choice of general sustainability indicators
4.1 Importance of water-accessible porosity
Water-accessible porosity is a key parameter for assessing and predicting durability. It is an indicator of material quality. This parameter correlates fairly well with average compressive strength: when porosity decreases [due to a lower water-to-cement ratio (W/C), the addition of ultrafine particles, etc.], strength increases (cf. § 1.1.1). It is also easy to determine 6.2
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Justification for the choice of general sustainability indicators
Justification for the choice of substitute indicators
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