Code Manual for CONTAIN 2.0 - Federation of American Scientists

e assumed to be present in the concrete layer with a mass “cmass” for the
purpose ofdoing heatconduction calculations. Theconcrete type specified
here through “otW” has no effect on the properties of the CONC material.
CONCRETE the required keyword to initiate the concrete type specification when the
CORCON model is used.
BASALT or allowable values for the concrete type. The type LIME refers to limestone/
LIME or common sand concrete while GENERIC refers to limestone concrete. The
GENERIC or keyword OTHER allows the user to specify the mass fractions present in
OTHER melted concrete. Note that the OTHER keyword refers to the composition of
melted concrete and is distinct from the mass fractions for solid concrete.
The composition and properties of BASALT, LIME or GENERIC are given
in Table 5-1.
fmatl
tabl
efusn
the array of mass fractions in solid concrete. Exactly 13 mass fractions
corresponding to the following species must be given in the following order:
SiOz, Ti02 MnO, MgO, CaO, N~O, KZO, Fe20~, A120~, COZ, H20
(evaporable), and HZO(bound). The default values of these mass fractions
for the three predefine concrete types are given in Table 5-1.
the ablation temperature of concrete. Default values are given in Table 5-1.
(K)
the heat of fusion associated with concrete decomposition. For upward
compatibility reasons, this value must be specified, but it is not used.
TSOLID the concrete solidus temperature. Defaults are given in Table 5-1 for “otyp”
= tsolct = BASALT, LIME, and GENERIC. (K)
TLIQID the concrete liquidus temperature. Defaults are given in Table 5-1 for “otyp”
= tliqct = BASALT, LIME, and GENERIC. (K)
TABLAT the ablation temperature of the concrete surface. Defaults are given in Table
= tabl 5-1 for “otyp” = BASALT, LIME, and GENERIC. (K)
RHOCON the concrete density. Defaults are given in Table 5-1 for “otyp” = BASALT,
= rhoc LIME, and GENERIC. (kg/m3)
REBAR the mass ratio of reinforcing steel to concrete in the layer. Default= O.
= rbr
EMCONC the emissivity of the concrete surface. Used in radiation modeling between
— = ew the concrete surface and the ablating material. Default = 0.8.
Rev O 14-125 6/30/97