Skip to main content

View full-text article in PMC

. 2019 Oct 22;12(20):3456. doi: 10.3390/ma12203456

Table 3.

Composition limits prescribed by various normative documents for a service life of 50 years.

Normative Document	Parameter	Exposure Conditions
		Carbonation				Chlorides from Sea Water
		XC1	XC2	XC3	XC4	XS1	XS2	XS3
EN 206 [22]	Maximum w/c	0.65	0.6	0.55	0.5	0.5	0.45	0.45
	Min. strength class	C20/25	C25/30	C30/37	C30/37	C30/37	C35/45	C35/45
	Minimum cement content (kg/m³)	260	280	280	300	300	320	340
EN 1992-1-1 [18]	Minimum cover (mm)	15 ^b	25 ^b	25 ^b	30 ^b	35 ^b	40 ^b	45 ^b
E 464 [136]	Maximum w/c	0.65	0.65	0.55–0.60 ^a	0.55–0.60 ^a	0.45–0.55 ^a	0.45–0.55 ^a	0.40–0.45 ^a
	Minimum strength class	C25/30 LC25/28	C25/30 LC25/28	C30/37 LC30/33	C30/37 LC30/33	C30/37-C40/50 ^a LC30/33-LC40/44 ^a	C30/37-C40/50 ^a LC30/33-LC40/44 ^a	C35/45-C50/60 ^a LC35/38-LC50/55 ^a
	Minimum cement content (kg/m³)	240–260 ^a	240–260 ^a	280–300 ^a	280–300 ^a	320–360 ^a	320–360 ^a	340–380 ^a

^a Depending on the type of binder; ^b Values defined for NWC, for the S4 structural class (5 mm should be added in SLWAC).