Carbonation and porosity of mortar specimens with pozzolanic and hydraulic cement admixtures

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Cement and Concrete Research; (United States)

DOI:https://doi.org/10.1016/0008-8846(94)90158-9· OSTI ID:6631595

Malami, C; Kaloidas, V ^[1]; Batis, G; Kouloumbi, N ^[2]

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1. Heracles General Cement Co., Athens (Greece)
2. National Technical Univ. of Athens (Greece). Section of Materials Science and Engineering

The effect of the addition of lignite fly ash, natural Greek pozzolan and blast furnace slag to ordinary portland cement don the carbonation of mortar specimens was studied in a program of long-term exposure to the atmosphere in relation to the evolution of their porous structure. Additions of 4%, 15% and 30% or 50% of the admixtures to the cement were tested. The carbonation depth and the specific pore volume of the cover were measured. The additions of 4% pozzolan, and 4% and 15% fly ash, and 4% and 15% slag did not influence the porosity and the carbonation of the specimens compared to reference specimens without admixtures. Higher additions resulted in an increase of the above parameters.

• OSTI ID: 6631595
• Journal Information: Cement and Concrete Research; (United States), Journal Name: Cement and Concrete Research; (United States) Vol. 24:8; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
AEROSOL WASTES
ASHES
BLAST FURNACES
CARBON COMPOUNDS
CARBONATES
COMBUSTION PRODUCTS
CURING
FLY ASH
FURNACES
MORTARS
OXYGEN COMPOUNDS
POROSITY
RESIDUES
SLAGS
SYNTHESIS
WASTE PRODUCT UTILIZATION
WASTES