The effects of fly ash composition on the chemistry of pore solution in hydrated cement pastes

Cement and Concrete Research

Volumn 29, Issue 12, 1999, Pages 1915-1920

  Shehata, Medhat H ^a   Thomas, Michael D A ^a   Bleszynski, Roland F ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

Alkali aggregate reaction; Calcium silicate hydrate (C S H); EDS; Fly ash; Pore solution

Indexed keywords

ADHESIVE PASTES; COMPOSITION EFFECTS; ENERGY DISPERSIVE SPECTROSCOPY; FLY ASH; HYDRATION;

ALKALI-AGGREGATE REACTION; CALCIUM SILICATE HYDRATE; HYDRATED CEMENT PASTES;

CEMENTS;

EID: 0033332437     PISSN: 00088846     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0008-8846(99)00190-8     Document Type: Article

References (15)

1. S. Diamond, Effects of two Danish fly ashes on alkali contents of pore solutions of cement-fly ash pastes, Cem Concr Res 11 (3) (1981) 383-394.
2. F.P. Glasser, J. Marr, The alkali binding potential of OPC and blended cements, II Cemento 82 (1985) 85-94.
3. P.J. Nixon, C.L. Page, R. Bollinghaus, I. Canham, The effect of a PFA with a high total alkali content on pore solution composition and alkali silica reaction, Magazine of Concr Res 38 (134) (1986) 30-35
4. (also discussion in 39 (138) (1987) 51-54).
5. - concentrations of pore fluids and expansion due to alkali-silica reaction in composite cement mortars, in: Proc 8th Inter Cong on the Chem of Cem, Vol. 3, Rio de Janeiro, 1986, pp. 183-189.
6. I. Canham, C.L. Page, P.J. Nixon, Aspects of the pore solution chemistry of blended cements related to the control of alkali silica reaction, Cem Concr Res 17 (5) (1987) 839-844.
7. J. Duchesne, M.-A. Berube, Relationships between portlandite depletion, available alkalis and expansion of concrete made with mineral admixtures, in: Proc 9th Inter Conf on Alk-Agg React in Concr, Vol. 1, The Concrete Society, Slough, England, 1992, pp. 287-297.
8. J. Duchesne, M.-A. Berube, The effectiveness of supplementary cementing materials in suppressing expansion due to ASR: Another look at reaction mechanisms. Part 2: Pore solution chemistry, Cem Concr Res 24 (2) (1994) 221-230.
9. M. Kawamura, K. Takemoto, Correlation between pore solution composition and alkali silica expansion in mortars containing various fly ashes and blastfurnace slags, Int J Cem Comp and Lightweight Concr 10 (4) (1988) 215-223.
10. S. Diamond, F. Lopez-Flores, Comparative studies of the effects of lignitic and bituminous fly ashes in hydrated cement systems, in: S. Diamond (Ed.), Effects of Fly Ash Incorporation in Cement and Concrete, Proc MRS Symp, Mat Res Society, Pittsburgh, PA, 1981, pp. 112-123.
11. C. Lee, S. Schlorholtz, T. Demirel, Available alkalis in fly ash, in: Fly Ash and Coal Conversion By-Products: Characterization, Utilization and Disposal II, MRS Symp Proc 65 Mat Res Society, Pittsburgh, PA, 1986, pp. 125-130.
12. R.S. Barneyback Jr., S. Diamond, Expression and analysis of pore fluids from hardened cement paste and mortars, Cem Concr Res 11 (1981) 279-285.
13. M.D.A. Thomas, Review of the effect of fly ash and slag on the alkali-aggregate reaction in concrete, Building Research Establishment Report 314, Construction Research Communications Ltd., Watford, UK, 1996.
14. P.L. Rayment, The effect of pulverized-fuel ash on the C/S molar ratio and alkali content of calcium silicate hydrates in cement, Cem Concr Res 12 (2) (1982) 133-140.
15. M.D.A. Thomas, P.J. Nixon, K. Pettifer, The effect of pulverized fuel ash with a high total alkali content on the alkali silica reaction in concrete containing natural U. K. Aggregate, in: V.M. Malhotra (Ed.), Proc 2d CANMET/ACI Inter Conf on Durability of Concr, 2 ACI, Detroit, 1991, pp. 919-940.