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Water movement in porous building materials—VII. The sorptivity of mortars

Hall, Christopher / Tse, Thomas Kam-Ming

Abstract The application of the sorptivity test to determine the capillary water absorption properties of cement mortars is described. Curvature is found in some standard $i (t$ ^1
2) plots. This is found to be consistent with the unsaturated flow theory of capillary rise, and can be allowed for by the addition of a term in t to the water absorption law. The measured sorptivity of mortars varies markedly with water/cement ratio, cement/sand ration and plasticizer content, and ranges in the materials studied from 0.15 to $2 mm min$ ^−

1
2 approximately. The sorptivity is unaffected by repeated wetting and drying cycles of short duration.

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Water movement in porous building materials—VII. The sorptivity of mortars

Hall, Christopher / Tse, Thomas Kam-Ming

Abstract The application of the sorptivity test to determine the capillary water absorption properties of cement mortars is described. Curvature is found in some standard $i (t$ ^1
2) plots. This is found to be consistent with the unsaturated flow theory of capillary rise, and can be allowed for by the addition of a term in t to the water absorption law. The measured sorptivity of mortars varies markedly with water/cement ratio, cement/sand ration and plasticizer content, and ranges in the materials studied from 0.15 to $2 mm min$ ^−

1
2 approximately. The sorptivity is unaffected by repeated wetting and drying cycles of short duration.

Water movement in porous building materials—VII. The sorptivity of mortars

Hall, Christopher / Tse, Thomas Kam-Ming

Abstract The application of the sorptivity test to determine the capillary water absorption properties of cement mortars is described. Curvature is found in some standard $i (t$ ^1
2) plots. This is found to be consistent with the unsaturated flow theory of capillary rise, and can be allowed for by the addition of a term in t to the water absorption law. The measured sorptivity of mortars varies markedly with water/cement ratio, cement/sand ration and plasticizer content, and ranges in the materials studied from 0.15 to $2 mm min$ ^−

1
2 approximately. The sorptivity is unaffected by repeated wetting and drying cycles of short duration.

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Title:

Water movement in porous building materials—VII. The sorptivity of mortars

Contributors:

Hall, Christopher (author) / Tse, Thomas Kam-Ming (author)

Published in:

Building and Environment ; 21 ; 113-118

Publication date:

1986-01-01

Size:

6 pages

ISSN:

DOI:

https://doi.org/10.1016/0360-1323(86)90017-X

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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