✦ LIBER ✦

The effect of admixtures on the strength-porosity relationship of portland cement paste

✍ Scribed by James J. Beaudoin; Cameron MacInnis

Publisher: Elsevier Science
Year: 1971
Tongue: English
Weight: 360 KB
Volume: 1
Category: Article
ISSN: 0008-8846
DOI: 10.1016/0008-8846(71)90079-2

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✦ Synopsis

The effect of four types of admixtures (flyash, waterreducing agents, an air-entraining agent and limestone mineral powder) on the strength-porosity relationship Vol. l, No. l ADMIXTURE, STRENGTH, POROSITY, CEMENT PASTE Notation o = weight of cement in grams. vo = specific volume of cement. w n = weight of non-evaporable water per unit weight of cement. w~ = weight of non-evaporable water per unit weight of completely hydrated cement. a = the fraction of cement that has hydrated or the ratio of Wn/W ~.

w = weight of mixing water.

w o = initial water-cement ratio.

x = gel space ratio.

Aw = the weight of water per unit weight of cement which must be supplied from an external source in order to maintain the paste in saturated condition. k = proportionality constant relating w and w n. fo = compressive strength of 2 in. cubes in psi.

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