Effect Of Different Mineral Admixtures On Sulfate Attack to Mortars

被引：1

作者：

Niu, Quan-Lin ^{[1
]}

Feng, Nai-Qian ^{[2
]}

机构：

[1] Shandong Univ Technol, Coll Mat Sci & Engn, Zibo 255049, Shandong, Peoples R China

[2] Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China

来源：

ULTRA-HIGH-PUMPABILITY AND HIGH PERFORMANCE CONCRETE TECHNOLOGY | 2009年 / 405-406卷

关键词：

Mineral admixture; Sulfate Attack; expansion ratio; mass loss; Corrosion resistance coefficient; FLY-ASH; SILICA FUME; CONCRETE; RESISTANCE; CEMENT; METAKAOLIN; PASTES;

D O I：

10.4028/www.scientific.net/KEM.405-406.278

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion resistance coefficient of mortars incorporating different mineral admixtures were tested according to GB2420, and the expansion ratio of mortar bar immersed in 5% Na2SO4 solution was measured according to ASTM C1012. It is shown that all the mineral admixtures, including ground granulated blast furnace slag (SL) fly ash (FA), natural zeolite (NZ) and metakaolin (MK) were effective in decreasing the 15-week expansion and increasing the corrosion resistance coefficient of the specimens immersed in Na2SO4 solution as well.

引用

页码：278 / +

页数：3

共 10 条

[1] Thaumasite formation and other forms of sulfate attack
Brown, PW
[J]. CEMENT & CONCRETE COMPOSITES, 2002, 24 (3-4) : 301 - 303
[2] COHEN MD, 1988, ACI MATER J, V85, P148
[3] HOOTON RD, 1990, ACI MATER J, V87, P547
[4] Sulfate attack on concrete with mineral admixtures
Irassar, EF
DiMaio, A
Batic, OR
[J]. CEMENT AND CONCRETE RESEARCH, 1996, 26 (01) : 113 - 123
[5] Sulphate resistance of metakaolin mortar
Khatib, JM
Wild, S
[J]. CEMENT AND CONCRETE RESEARCH, 1998, 28 (01) : 83 - 92
[6] The confused world of sulfate attack on concrete
Neville, A
[J]. CEMENT AND CONCRETE RESEARCH, 2004, 34 (08) : 1275 - 1296
[7] Obla KH, 2003, ACI MATER J, V100, P426
[8] Effect of silica fume, metakaolin, and low-calcium fly ash on chemical resistance of concrete
Roy, DM
Arjunan, P
Silsbee, MR
[J]. CEMENT AND CONCRETE RESEARCH, 2001, 31 (12) : 1809 - 1813
[9] SULFATE RESISTANCE OF HIGH FLY-ASH CONTENT CONCRETE
TORII, K
TANIGUCHI, K
KAWAMURA, M
[J]. CEMENT AND CONCRETE RESEARCH, 1995, 25 (04) : 759 - 768
[10] Portlandite consumption in metakaolin cement pastes and mortars
Wild, S
Khatib, JM
[J]. CEMENT AND CONCRETE RESEARCH, 1997, 27 (01) : 137 - 146

← 1 →