An interesting trend is seen, where generally: (a) density increases in time, even when fresh and hardened state are compared [ 83 ], and (b) density increases in ssd as well as in oven-dried state.
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Concept of Evaluation of Mineral Additives' Effect on Cement Pastes' Durability and Environmental Suitability.
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The sentences
Considering relation f c -180-ssd:f c -28-ssd, there is an obvious trend, since compressive strength increases with time, complying with theory.