<xs:complexType name="IfcMechanicalConcreteMaterialProperties">
<xs:complexContent>
<xs:extension base="ifc:IfcMechanicalMaterialProperties">
<xs:sequence>
<xs:element name="CompressiveStrength" type="ifc:IfcPressureMeasure" nillable="true" minOccurs="0" />
<xs:element name="MaxAggregateSize" type="ifc:IfcPositiveLengthMeasure" nillable="true" minOccurs="0" />
<xs:element name="AdmixturesDescription" type="ifc:IfcText" nillable="true" minOccurs="0" />
<xs:element name="Workability" type="ifc:IfcText" nillable="true" minOccurs="0" />
<xs:element name="ProtectivePoreRatio" type="ifc:IfcNormalisedRatioMeasure" nillable="true" minOccurs="0" />
<xs:element name="WaterImpermeability" type="ifc:IfcText" nillable="true" minOccurs="0" />
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
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