INCREASE IN CREEP OF HARDENED CEMENT PASTE DUE TO CARBONATION UNDER LOAD
Carbonation usually affects only a small portion, the surface layer, of structural concrete but in laboratory specimens a large portion of the total volume may become carbonated. It is shown experimentally that carbonation under load can increase the creep of small laboratory specimens by more than 50% and thus limit the practical application of laboratory creep results. The experimental work was performed on prisms of hardened cement paste with a water/cement ratio of 0.47. Various techniques were used to indicate the changes in hardened cement paste structure that resulted from carbonation; these led to a description of the paste that could account both for the experimental results and for other data indicating that carbonation prior to loading reduces creep. (A).
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00249831
-
Corporate Authors:
An Foras Forbartha
St Martin's House, Waterloo Road
Dublin 4, Ireland -
Authors:
- Parrott, L J
- Publication Date: 1975-9
Language
- English
Media Info
- Features: Figures; Photos; References;
- Pagination: p. 179-181
-
Serial:
- MAGAZINE OF CONCRETE RESEARCH
- Volume: 27 N
- Issue Number: 92
- Publisher: Thomas Telford Limited
- ISSN: 0024-9831
Subject/Index Terms
- TRT Terms: Carbonates; Carbonization; Cement paste; Concrete; Concrete hardening; Creep; Creep properties; Experiments; Hardness; Loads; Mix design; Physical properties; Prisms; Water cement ratio
- Uncontrolled Terms: Concrete properties
- ITRD Terms: 7312: Carbonate; 4767: Cement paste; 4755: Concrete; 4732: Creep (mater); 4722: Hardening; 5567: Load; 4714: Mix design; 6459: Prism
- Subject Areas: Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 00134400
- Record Type: Publication
- Source Agency: Transport and Road Research Laboratory (TRRL)
- Files: ITRD, TRIS
- Created Date: Sep 16 1976 12:00AM