Effect of different calcium aluminate hydrates on ettringite formation and expansion of high alumina cement-based expansive cement pastes

被引：15

作者：

Fu, Y ^{[1
]}

Ding, J ^{[1
]}

Beaudoin, JJ ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,INST RES CONSTRUCT,MAT LAB,OTTAWA,ON K1A 0R6,CANADA

来源：

CEMENT AND CONCRETE RESEARCH | 1996年 / 26卷 / 03期

关键词：

D O I：

10.1016/S0008-8846(96)85029-0

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Different hydrated high alumina cement (H-HAC) mixtures containing mainly CAH(10), C(2)AH(8) or C(3)AH(6) obtained at different temperatures were studied with respect to their performance as the Al-bearing component in HAC-based expansive additives. Free expansion and ettringite formation potentials of expansive cement using the different H-HAC preparations were reported. It was shown that H-HAC containing predominantly CAH(10) and C(2)AH(8) reacted more rapidly to form ettringite in HAC-based expansive cement systems than anhydrous HAC or H-HAC containing C(3)AH(6). The expansion of the expansive cement containing CAH(10) and C(2)AH(8) developed mostly during the first day hydration. The presence of C(3)AH(6) in the expansive cement appeared to delay the expansion and decrease the ultimate expansion value significantly.

引用

页码：417 / 426

页数：10

共 9 条

[1]

ARONI S, 1966, 66 U CAL DEP CIV ENG

[2]

BUDNIKOV, 1968, P 5 INT S CEM CHEM, V4, P319

[3]

FU Y, 1994, ACI MATER J, V91, P46

[4] EXPANSION CHARACTERISTICS OF A COMPOUNDED-EXPANSIVE ADDITIVE AND PRE-HYDRATED HIGH-ALUMINA CEMENT-BASED EXPANSIVE ADDITIVE [J].

FU, Y ;

DING, J ;

BEAUDOIN, JJ .

CEMENT AND CONCRETE RESEARCH, 1995, 25 (06) :1295-1304

[5] CHARACTERISTICS OF SHRINKAGE COMPENSATING EXPANSIVE CEMENT CONTAINING A PRE-HYDRATED HIGH-ALUMINA CEMENT-BASED EXPANSIVE ADDITIVE [J].

FU, Y ;

XIE, P ;

GU, P ;

BEAUDOIN, JJ .

CEMENT AND CONCRETE RESEARCH, 1994, 24 (02) :267-276

[6]

FU Y, 1992, THESIS U TORONTO, P125

[7]

MIKHAILOV VV, 1960, P 4 INT S CEM CHEM, V2, P927

[8]

MONFORE GE, 1964, J PCA RES DEV LAB, V2, P2

[9]

SHEIKH SA, 1994, ACI MAT J, V92, P237

← 1 →