Self-sealing, autogenous healing and continued hydration: What is the difference?

被引：244

作者：

Hearn, N ^{[1
]}

机构：

[1] Univ Toronto, Dept Civil Engn, Toronto, ON M5S 1A4, Canada

来源：

MATERIALS AND STRUCTURES | 1998年 / 31卷 / 212期

关键词：

D O I：

10.1007/BF02481539

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

It is well known that as concrete hydrates its permeability decreases. Continued hydration, however, is not the only mechanism which causes such reduction. Self-sealing, which is largely attributed to the dissolution and redeposition of hydrates, and autogenous healing of cracks, can also significantly reduce the flow. This paper reviews the relative effects of self-sealing, autogenous healing and hydration.

引用

页码：563 / 567

页数：5

共 19 条

[1] WATER PERMEABILITY OF CEMENT PASTE [J].

BANTHIA, N ;

MINDESS, S .

CEMENT AND CONCRETE RESEARCH, 1989, 19 (05) :727-736

[2] THE INFLUENCE OF PORE PRESSURE UPON CONCRETE [J].

BUTLER, JE .

MAGAZINE OF CONCRETE RESEARCH, 1981, 33 (114) :3-17

[3] NEAR-SURFACE CHARACTERISTICS OF CONCRETE - INTRINSIC PERMEABILITY [J].

DHIR, RK ;

HEWLETT, PC ;

CHAN, YN .

MAGAZINE OF CONCRETE RESEARCH, 1989, 41 (147) :87-97

[4] Self-sealing property of concrete - Experimental evidence [J].

Hearn, N ;

Morley, CT .

MATERIALS AND STRUCTURES, 1997, 30 (201) :404-411

[5]

Kermani A., 1991, Batim. Int., Build. Res. Pract., V19, P360

[6]

Lauer K.R., 1956, American Concrete Institute Journal, P1083

[7] ION DIFFUSION IN MICROCRACKED CONCRETE [J].

LOCOGE, P ;

MASSAT, M ;

OLLIVIER, JP ;

RICHET, C .

CEMENT AND CONCRETE RESEARCH, 1992, 22 (2-3) :431-438

[8]

MINDESS S, 1984, ACI RILEM SEM TECHN, P00121

[9]

Powers T.C., 1954, J AM CONCR I, V26, P285

[10]

SAMAHA HR, 1992, ACI MATER J, V89, P416

← 1 2 →