Improvement of the performance of alkali activated blast furnace slag mortars with very finely ground pumice

被引：15

作者：

Ozodabas, Aylin ^{[1
,2
]}

Yilmaz, Kemalettin ^{[2
]}

机构：

[1] Bartin Univ, Dept Civil Engn, TR-74100 Bartin, Turkey

[2] Sakarya Univ, Dept Civil Engn, TR-54187 Serdivan, Sakarya, Turkey

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 48卷

关键词：

Blast furnace slag; Alkali; Activator; Sodium hydroxide; Sodium silicate; Pumice; DRYING SHRINKAGE; CONCRETE; STRENGTH; DURABILITY; ATTACK; ACID;

D O I：

10.1016/j.conbuildmat.2013.06.047

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This work investigates the strength and durability of alkali activated blast furnace slag mortars (AAS) with very finely ground pumice (P) at certain rates. BFS was used instead of cement at the rate of 60% and 80%. Sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) alkalis were added as solution into the mixture. First stage Na2O 6, 7 and 8 wt% of the BFS was added. Better results were obtained from the strength values of the sample containing 8% Na2O. Because of this result, in the second stage, pumice was used instead of 5% and 10% of the BFS. However, silicate modules (M-S = SiO2/Na2O) in both experimental studies were calculated as 0.5, 0.75 and 1.00. The durability values of the AAS + P samples were better than those of the reference samples. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：26 / 34

页数：9

共 28 条

[11] Investigation of durability properties of concrete pipes incorporating blast furnace slag and ground basaltic pumice as fine aggregates [J].

Binici, H. ;

Durgun, M. Y. ;

Rizaoglu, T. ;

Kolucolak, M. .

SCIENTIA IRANICA, 2012, 19 (03) :366-372

[12] Sodium silicate-based alkali-activated slag mortars Part II. The retarding effect of additions of sodium chloride or malic acid [J].

Brough, AR ;

Holloway, M ;

Sykes, J ;

Atkinson, A .

CEMENT AND CONCRETE RESEARCH, 2000, 30 (09) :1375-1379

[13]

Caijun S., 1999, CEMENT CONCRETE RES, V26, P1789, DOI [10.1016/S0008-8846(96)00174-3, DOI 10.1016/S0008-8846(96)00174-3]

[14] A study on the setting characteristics of sodium silicate-activated slag pastes [J].

Chang, JJ .

CEMENT AND CONCRETE RESEARCH, 2003, 33 (07) :1005-1011

[15] Effects of dosage of alkali-activated solution and curing conditions on the properties and durability of alkali-activated slag concrete [J].

Chi, Maochieh .

CONSTRUCTION AND BUILDING MATERIALS, 2012, 35 :240-245

[16] Strength and shrinkage properties of alkali-activated slag concrete containing porous coarse aggregate [J].

Collins, F ;

Sanjayan, JG .

CEMENT AND CONCRETE RESEARCH, 1999, 29 (04) :607-610

[17] Cracking tendency of alkali-activated slag concrete subjected to restrained shrinkage [J].

Collins, F ;

Sanjayan, JG .

CEMENT AND CONCRETE RESEARCH, 2000, 30 (05) :791-798

[18] Effect of pore size distribution on drying shrinkage of alkali-activated slag concrete [J].

Collins, F ;

Sanjayan, JG .

CEMENT AND CONCRETE RESEARCH, 2000, 30 (09) :1401-1406

[19] Alkali-activated slag mortars -: Mechanical strength behaviour [J].

Fernández-Jiménez, A ;

Palomo, JG ;

Puertas, F .

CEMENT AND CONCRETE RESEARCH, 1999, 29 (08) :1313-1321

[20]

Glukhovsky V D, 1980, P 7 INT C CHEM CEM, P164

← 1 2 3 →