presentation experience with rcm-tem method
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7/21/2019 Presentation Experience With RCM-TEM Method
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Benelux
Results RCM - TEM testmethods
Reason for research by ENCI
• Durabililty design service lifetime concrete structures
u! tot "## years$
• RCM testmethod in Duracrete model
• Dutch standardcommittee %C&'$
develo!ment of !r(tandard on durability design
M e a n s e r v ic e l i f e
S e v i c e l i fe d i s t r ib u t io n
T im e
F a i lu r e p r o b a b i li ty
T a rg e t s e r v ic e li f e
D i s t ri b u t i o n o f S ( t)
S ( t )
R ( t )
R , SP f
P
f
D is t r ib u t io n o f R ( t )
7/21/2019 Presentation Experience With RCM-TEM Method
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−−=
cl
cl
R
n
cl cl ecl c
d d
cl s
d
cr
t t t Dk k
xerf cc g
γ 00,,,
,
2
1
Probabilityof initiationof corrosionof < !"
#####
C ( x ,t ) = C s – ( C s - C i ) e r f
( x / 2 { K t o t D 0
t ( t 0 / t ) n C l } )
7/21/2019 Presentation Experience With RCM-TEM Method
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Results RCM - TEM testmethods
Testing !rogram by ENCI
)ur!ose*• To gain ex!erience +ith RCM-method,
• )erformance of ENCI-cements,
• udge the figures in the conce!t of %C &'• Correlation RCM . TEM
• Influence of several concrete technological$ !arameters
min/ '# mmmin/ '# mmmin/ '# mmmin/ '# mmmin/ '# mmmin/ '# mmmin/ '# mm
Opp.
h o o g t e
A
V
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Opp.Opp.
h o o g t e
A
V
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7/21/2019 Presentation Experience With RCM-TEM Method
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Results RCM - TEM testmethods
D00R122M3EID %2N C4N(TR0CTIE5 BET4N METBETRE66IN7 T4T C384RIDE-7E9NITIEERDE:2)ENIN7(C4RR4(IE8eidraad voor het formuleren van !restatie-eisen
Technical Report (VC81):
Results of calculations based on Duracrete-odel :
! includin" en#ironental, aterial and curin" paraeters$
! initial chloride-content % 0,1 & ' - and critical chloride-content % 0,& ' to ceent$
! urface chloride-content 1, & for atosferic conditions and *,0 & for +2 and +*$
! ncludin" safet ar"e on concrete co#er of 1., (re/nforceent) and 2., (pre-stressed)
7/21/2019 Presentation Experience With RCM-TEM Method
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Results RCM - TEM testmethods
)rogram•
Re!eatability of the RCM-test and TEM• Influence of several concrete technological !arameters*
• )re!aration sam!le cast cilinder vs/ drilled$
• Maximum aggregate si;e '< mm versus "= mm$
• )erformance of ENCI-cements
• Ratio of blastfurnace slag• Curing time
• 3ardening tem!erature
• (am!le age hydration$
• :atercement-ratio• Relation RCM - TEM
7/21/2019 Presentation Experience With RCM-TEM Method
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Results RCM - TEM testmethods
Concrete/• Cast cilinders
• 2ggregate grading 2B'< Dmax > '<mm$
• Consistancy Class (?
• Environmental class @(?
• :cf #A=, cement ?"# gm?
Testmethod.
• RCM* NT Build " results are average out of <$
• TEM* results are average out of ?$older, R , 2000, Draft R345 Technical Recoendation Test ethods for on site
easureent of resisti#it of concrete, 5aterials and tructures, Vol **, 60*-611
7/21/2019 Presentation Experience With RCM-TEM Method
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RCM - testmethod
7/21/2019 Presentation Experience With RCM-TEM Method
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RCM - testmethod
7/21/2019 Presentation Experience With RCM-TEM Method
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Re!eatability
six results, CEM I ="A=N$
Results RCM - TEM testmethods
Reference-cement CEM I 52,5N:
6 (x6 re!"#t! $"r%ng comp#ete te!t%ng per%o$
Average: 10,9 * 10-12 m2/s
Standard deviation: 1,75 * 10-12 m2/s
LL = ,! * 10-12 m2/s
"L = 15,2 * 10-12 m2/s
#$% = 1& '
Average: 91, ohm.m
Standard deviation: ohm.m
#$% = 9'
7/21/2019 Presentation Experience With RCM-TEM Method
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)re!aration sam!ledrilled vs/ castingA CEM I ="A=N$
Results RCM - TEM testmethods
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2ggregate si;e
'< vs/ "= mmA CEM I ="A=N$
Results RCM - TEM testmethods
7/21/2019 Presentation Experience With RCM-TEM Method
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)erformance ENCI-cement
Results RCM - TEM testmethods
7/21/2019 Presentation Experience With RCM-TEM Method
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Ratio of ground granulated blastfurnace slag
Results RCM - TEM testmethods
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Curing time
'A ?A F en "& days under +ater, and than "#GCA <#H R% till "& days$
Results RCM - TEM testmethods
7/21/2019 Presentation Experience With RCM-TEM Method
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3ardening tem!erature=CA "#C en ?=C testing by eJual maturity$
Results RCM - TEM testmethods
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(am!le age hydration$"&A =<A 'A '&" dg/ en ' Kr/$
Results RCM - TEM testmethods
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Results RCM - TEM testmethods
(am!le age hydration$
"&A =<A 'A '&" dg/ en ' Kr/$
7/21/2019 Presentation Experience With RCM-TEM Method
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:ater Cement ratio#/= versus #/== including variable ratio ofggbfs$
Results RCM - TEM testmethods
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Correlatie RCMTEM
Results RCM - TEM testmethods
7/21/2019 Presentation Experience With RCM-TEM Method
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Results RCM - TEM testmethods
Correlation RCMTEM
7/21/2019 Presentation Experience With RCM-TEM Method
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Results RCM - TEM testmethods
#on()sion:
! +# is not dis(riminating or (on(rete ith )ended
(ements ggs and a! +#-testing at 2-da3s is navora)e or )ended (ements
! T4 is not dis(riminating or (on(rete ith #4 .
R l R d R bi RCM
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4bKective*
Comp&re te!t re!"#t! of $%fferent #&'or&tor%e! ().
Concrete !&mp#e! m&$e '* one pro$"cer (prec&!t
Concrete '#oc+! ) x ) x 5 cm
Results Round Robin test on RCM
Concrete mix ' Concrete mix "
Cement CEM I ="A= R CEM III2 ="A= N
:CR #A=# #A=7rading # . ?" # . '<
(trength class C=== C==<F
R lt R d R bi t t RCM
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Results Round Robin test on RCM
Average: 7,09 * 10-12 m2/s
Standard deviation: 1,56 * 10-12 m2/s
#$% = 22 '
R lt R d R bi t t RCM
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Results Round Robin test on RCM
Average: 2,!& * 10-12 m2/s
Standard deviation: 0,&! * 10-12 m2/s
#$% = 2& '
R lt R d R bi t t RCM
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Results Round Robin test on RCM
R lt RCM t t th d
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4ther !arameters that may effect RCM - result
North-(ea 7ravel and sand L
Results RCM - testmethod
R lt RCM t t th d
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(teel-fibres
Results RCM - testmethod
4ther !arameters that may effect RCM - result
R lt RCM t t th d
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4ther !arameters that effects RCM - result
Results RCM - testmethod
(teel-fibres acts as a sacrifice anode,
No chloride-migration at all OO
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