Influence of Blast-Furnace Slag on the Durability of Cement Mortar by Carbonic Acid Attack—Problems Connected with Tests on Corroded Specimens

2009 ◽  
pp. 364-364-13
Author(s):  
Y Efes
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Carbonic Acid ◽  
Cement Mortar ◽  
Acid Attack ◽  
Furnace Slag

ON THE USE OF SLAG CEMENT COMPOSITIONS IN THE CONSTRUCTION OF WELLS

2017 ◽  
pp. 80-85
Author(s):  
V. P. Ovchinnikov ◽  
O. V. Rozhkova ◽  
N. A. Aksenova ◽  
P. V. Ovchinnikov
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Elevated Temperatures ◽  
Cement Mortar ◽  
Setting Time ◽  
Rheological Parameters ◽  
Slag Cement ◽  
Furnace Slag

In the article studies of oil-filled compositions with the addition of blast-furnace slag for strength at elevated temperatures are presented. The rheological parameters of the slag cement slag cement mortar, as well as the setting time, were studied. Conclusions are drawn about the prospects of further study of slag cementcontaining compositions.

scholarly journals Influence of alum sludge ash and ground granulated blast furnace slag on properties of cement mortar

2021 ◽  
pp. 100376
Author(s):  
Yee Leng Ng ◽  
M.A.A. Aldahdooh ◽  
Motasem Y.D. Alazaiza ◽  
Mohammed JK. Bashir ◽  
Chok Vui Soon ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Cement Mortar ◽  
Granulated Blast Furnace Slag ◽  
Alum Sludge ◽  
Sludge Ash ◽  
Furnace Slag

scholarly journals Optimizing the Acid Resistance of Concrete with Granulated Blast-Furnace Slag

2018 ◽  
Vol 199 ◽  
pp. 02001
Author(s):  
Rolf Breitenbücher ◽  
Jan Bäcker ◽  
Sebastian Kunz ◽  
Andreas Ehrenberg ◽  
Christian Gerten
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Acid Resistance ◽  
Industrial Applications ◽  
Acid Attack ◽  
Dense Microstructure ◽  
Granulated Blast Furnace Slag ◽  
Acid Type ◽  
The Matrix ◽  
Furnace Slag

Concrete for agricultural or industrial applications is often subject to intense acid attack. Most affected structures are sewage structures and biogas plants, natural draught cooling towers or silage silos. Widely independent from acid type, in most cases the acid attack on concrete runs the same way, starting with dissolution of easily soluble calcareous phases like calcium hydroxide. With ongoing attack, calcium-silicate-hydrate crystals (CSH) are also affected by acidic media. In contrast, siliceous phases like silicon-dioxide (SiO2) are widely unaffected by acid attack. While the dissolution of the matrix is increasing with ongoing attack, quarzitic aggregates remain unchanged. Beside the use of coarse SiO2-aggregates, the resistance against acid attack is mainly increased by a minimization of the porosity. For this purpose on one hand, a low water/cement-ratio has to be sought, on the other hand also the fines should be distributed with an optimized grading curve (e.g. Fuller-principle). In practice, this results in a combination of various fine and ultra-fine components, e.g. fly ash, GGBS, silica fume or metakaolin. Such binder compositions lead to a particularly dense microstructure, especially at pore sizes below 1 micron, and a higher chemical resistance due to a lower Ca(OH)2 content. This paper gives an overview on typical acid-resistant concretes, most common applications as well as the effects of the related acid attack and points out the potential of granulated blast furnace slag addition to such concretes.

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