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Chemically Modified Water‐Glass Binders for Acid‐Resistant Mortars
Author(s) -
Zellmann H.D.,
Kaps Ch.
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00887.x
Subject(s) - mortar , durability , compressive strength , sodium silicate , flexural strength , curing (chemistry) , materials science , composite material , silicate , chemistry , organic chemistry
Water‐glass as a binder is used in acid and fire‐proof applications. A chemical modification influences the curing rate or characteristics like the flexural and compressive strength. The aim of this work is to investigate the influence of the addition of C 3 S, C 3 A, and Na 3 (PO 3 ) 3 on the chemical durability of cured sodium silicate mortars. The results show that the addition of clinker minerals as accelerator reduces chemical durability and makes these binders unusable for acid‐proof applications. The addition of Na 3 (PO 3 ) 3 makes the sodium silicate binder durable against water and acid attacks and triples the compressive strength.