Some further evidence on a specific effect of silica fume on the pore structure of portland cement mortars

1987 ◽  
Vol 17 (1) ◽  
pp. 65-69 ◽  
Author(s):  
M. Buil ◽  
P. Delage
Keyword(s):  
Portland Cement ◽  
Pore Structure ◽  
Silica Fume ◽  
Specific Effect ◽  
Cement Mortars

Durability of the hydrated limestone-silica fume Portland cement mortars under sulphate attack

1999 ◽  
Vol 29 (6) ◽  
pp. 819-826 ◽  
Author(s):  
J Zelić ◽  
R Krstulović ◽  
E Tkalčec ◽  
P Krolo
Keyword(s):  
Portland Cement ◽  
Silica Fume ◽  
Sulphate Attack ◽  
Cement Mortars

A Method for Estimating the Dynamic Moduli of Cement Paste-Aggregate Interfacial Zones in Mortar

1994 ◽  
Vol 370 ◽  
Author(s):  
Menashi D. Cohen ◽  
Turng-Fang F. Lee ◽  
Ariel Goldman
Keyword(s):  
Portland Cement ◽  
Silica Fume ◽  
Cement Paste ◽  
Modulus Of Elasticity ◽  
Dynamic Modulus ◽  
Dynamic Shear Modulus ◽  
Interfacial Zone ◽  
Dynamic Moduli ◽  
Dynamic Modulus Of Elasticity ◽  
Cement Mortars

AbstractThe objective of this paper is to propose a method to estimate the average values of the dynamic modulus of elasticity and the dynamic shear modulus of cement paste-aggregate interfacial zones in mortar by applying the Logarithmic Mixture Rule (LMR). Both portland cement mortars (PC mortars) and portland cement mortars with silica fume (SF mortars) are investigated and compared, The influence of silica fume on the dynamic moduli of interfacial zone is also examined. Results indicate that for the specific ingredients and mix design used, the dynamic modulus of elasticity of interfacial zone falls between 0.4 and 2.0 (×10 6 psi) for PC mortar and 1.2 to 2.2 (× 106 psi) for SF mortar. These values are lower than the values obtained for PC mortar (4.2 ×106 psi), PC paste (2.7 ×106 psi), SF mortar (4.4 ×106 psi), and SF paste (2.5 × 106 psi).

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