International Scholarly Research Notices

Research Article

Analysis of the Behavior of Carbon Nanotubes on Cementitious Composites

Table 5

Dynamic modulus of elasticity.
AgeParametersCN0CN2CN4CN6Average
3 daysAverage (GPa)21,63521,90527,04222,27523,214
Standard deviation0,257580,394160,219021,23863
Variance0,066350,155360,047971,53421
% gain/(reduction)—1,2424,992,96
7 daysAverage   (GPa)21,80622,23127,37424,53323,986
Standard deviation0,220730,436400,621600,52287
Variance0,048720,190450,386390,27339
% gain/(reduction)—1,9525,5312,50
28 daysAverage   (GPa)23,06522,46628,71225,28324,882
Standard deviation0,414040,525720,160350,35549
Variance0,171430,276380,025710,12637
% gain/(reduction)—(2,59)24,489,62
Average 22,16822,20127,70924,030