Effect of fly ashes with high total alkali content on the alkalinity of the pore solution of hydrated portland cement paste

被引：17

作者：

Lorenzo, P ^{[1
]}

Goni, S ^{[1
]}

Hernandez, S ^{[1
]}

Guerrero, A ^{[1
]}

机构：

[1] CSIC, INST CONSTRUCT SCI EDUARDO TORROJA, E-28033 MADRID, SPAIN

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1996年 / 79卷 / 02期

关键词：

D O I：

10.1111/j.1151-2916.1996.tb08146.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The influence of two Spanish fly ashes (ASTM class F) with high total alkali content (equivalent to 2.0% and 2.6% Na2O) on the alkalinity levels of the pore solutions expressed from hydrated portland cement pastes was studied during a period of 90 days from mixing. Mixtures with 0%, 15%, and 35% replacement of cement by fly ash were prepared with a water/mixture ratio of 0.4. The effect of the fly ash on the pore solution depended mainly on the age and fineness of the fly ash.

引用

页码：470 / 474

页数：5

共 23 条

[1]

BARLOW FD, 1988, CEMENT CONCRETE RES, V18, P235

[2] EXPRESSION AND ANALYSIS OF PORE FLUIDS FROM HARDENED CEMENT PASTES AND MORTARS [J].

BARNEYBACK, RS ;

DIAMOND, S .

CEMENT AND CONCRETE RESEARCH, 1981, 11 (02) :279-285

[3]

Berry E.E., 1990, CEMENT CONCRETE COMP, V12, P253, DOI DOI 10.1016/0958-9465(90)90004-H

[4] ASPECTS OF THE PORE SOLUTION CHEMISTRY OF BLENDED CEMENTS RELATED TO THE CONTROL OF ALKALI SILICA REACTION [J].

CANHAM, I ;

PAGE, CL ;

NIXON, PJ .

CEMENT AND CONCRETE RESEARCH, 1987, 17 (05) :839-844

[5] EFFECTS OF 2 DANISH FLYASHES ON ALKALI CONTENTS OF PORE SOLUTIONS OF CEMENT-FLYASH PASTES [J].

DIAMOND, S .

CEMENT AND CONCRETE RESEARCH, 1981, 11 (03) :383-394

[6]

DIAMOND S, 1981, MATER RES SOC S P, P112

[7]

Fraay A., 1990, CEMENT CONCRETE COMP, V12, P279, DOI DOI 10.1016/0958-9465(90)90007-K

[8] THE REACTION OF FLY-ASH IN CONCRETE - A CRITICAL-EXAMINATION [J].

FRAAY, ALA ;

BIJEN, JM ;

DEHAAN, YM .

CEMENT AND CONCRETE RESEARCH, 1989, 19 (02) :235-246

[9]

Glasser F.P., 1985, Cemento, V82, P85

[10]

GLASSER FP, 1984, BR CERAM SOC P, V35, P419

← 1 2 3 →