FREEZE-THAW DURABILITY AND SCALING RESISTANCE OF CONCRETE PAVING

被引：5

作者：

BOISVERT, J ^{[1
]}

MARCHAND, J ^{[1
]}

PIGEON, M ^{[1
]}

ISABELLE, HL ^{[1
]}

机构：

[1] LAFARGE CANADA INC,CTR RECH,MONTREAL H4P 2R3,PQ,CANADA

来源：

CANADIAN JOURNAL OF CIVIL ENGINEERING | 1992年 / 19卷 / 06期

关键词：

CONCRETE PAVING BLOCKS; SCALING RESISTANCE; DEICING SALTS; FREEZING THAWING CYCLES; AIR-VOID SPACING FACTOR;

D O I：

10.1139/l92-121

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Tests results described in this paper show that it is quite easy to produce concrete paving blocks with excellent resistance to freezing-thawing cycles in water. Good resistance to frost-associated scaling in the presence of deicing salts is, however, much more difficult to obtain; and the problem is particularly difficult to analyse because two types of tests gave very different results. A freezing test in the presence of a saline solution (ASTM C672) showed positive influence of certain parameters (such as finer material), but freezing tests in a brine bath (ACNOR CAN3 A231.2 M85) did not show influence of any variable. In addition, the high number of compacting voids made it very difficult to interpret measurements of air-void characteristics made by examining ground sections under an optical microscope (ASTM C457).

引用

页码：1017 / 1024

页数：8