<diggs:aggregateGradationCurveCoarseLimit xmlns:diggs="http://diggsml.org/schemas/3">
  <diggs:GroutGradingSpecification gml:id="">{1,1}</diggs:GroutGradingSpecification>
</diggs:aggregateGradationCurveCoarseLimit>

<element minOccurs="0" name="aggregateGradationCurveCoarseLimit" type="diggs:GroutGradingSpecificationPropertyType">
  <annotation>
    <documentation>A property containing gradation data that describes a grain size curve that defines the coarse grain size limit for grout aggregate.</documentation>
  </annotation>
</element>

<diggs:aggregateGradationCurveFineLimit xmlns:diggs="http://diggsml.org/schemas/3">
  <diggs:GroutGradingSpecification gml:id="">{1,1}</diggs:GroutGradingSpecification>
</diggs:aggregateGradationCurveFineLimit>

<element minOccurs="0" name="aggregateGradationCurveFineLimit" type="diggs:GroutGradingSpecificationPropertyType">
  <annotation>
    <documentation>A property containing gradation data that describes a grain size curve that defines the fine grain size limit for grout aggregate.</documentation>
  </annotation>
</element>

<element minOccurs="0" name="maxDeviationFlowConeTime" type="diggs:DimensionlessMeasureType">
  <annotation>
    <documentation>Maximum allowable percent deviation of flow cone time from design mix value.</documentation>
  </annotation>
</element>

<element minOccurs="0" name="maxDeviationGelTime" type="diggs:DimensionlessMeasureType">
  <annotation>
    <documentation>Maximum allowable percent deviation of gel time from design mix value.</documentation>
  </annotation>
</element>

<element minOccurs="0" name="maxDeviationMarshFunnelTime" type="diggs:DimensionlessMeasureType">
  <annotation>
    <documentation>Maximum allowable percent deviation of marsh funnel time from design mix value.</documentation>
  </annotation>
</element>

<element minOccurs="0" name="maxDeviationUnitWeight" type="diggs:DimensionlessMeasureType">
  <annotation>
    <documentation>Maximum allowable percent deviation of mud balance density from design mix value.</documentation>
  </annotation>
</element>

<complexType name="GroutSpecificationType">
  <annotation>
    <documentation>Extended type based on AbstractProgramSpecificationType. A THIN TYPE, DELIBERATELY SO (GB4, 2026-09-28) - the same shape diggs:RIColumnSpecificationType already established: what remains here is content no diggs:AbstractAcceptanceCriterion can express, not a restatement of what one already can. REMOVED, GB2 (2026-09-28): the local designGroutMixRef [0..1] to diggs:DesignGroutMix - a reverse pointer back at the design, unique to this type. No other diggs:AbstractProgramSpecification member (diggs:RIColumnSpecification, diggs:RILTPSpecification) points back at its design; the edge is asserted once, from the design side, through diggs:DesignGroutMix's own inherited programSpecificationRef. Matches the "member cites the group, never the reverse" principle diggs:samplingFeatureGroupRef's own documentation already states for a different relationship of the same shape. REMOVED, GB4 (2026-09-28): strengthAverage, strength90Percent, strengthMinimum, maxBleedAllowed, maxShrinkageAllowed, maxSlumpAllowed, maxSyneresisAllowed - seven separately named elements each encoding one property x one implicit statistic x one implicit bound, textbook instances of exactly the pattern diggs:AbstractAcceptanceCriterionType's own documentation names as the reason it exists: "one criterion states ONE requirement... several requirements on the same property... is several criteria sharing a scope, not one criterion with several limits" - strengthAverage/strength90Percent/strengthMinimum being three separate elements for the SAME property (compressive strength) at three different statistics is precisely that anti-pattern. Each now expresses as a sibling diggs:PerformanceCriterion (propertyClass from properties.xml - bleed, shrinkage, syneresis, slump and compressive_strength_unconfined all already have entries), attached through diggs:partOfSpecificationRef (GB3) rather than restated as a typed element here. KEPT, AND WHY - two different reasons, not one: - aggregateGradationCurveCoarseLimit/FineLimit carry a full grain-size curve (diggs:GroutGradingSpecificationType extends diggs:SieveAnalysisType), not a scalar. diggs:AbstractAcceptanceCriterionType/limit is a value or band (diggs:ParameterPropertyType) - it expresses a scalar tolerance exactly and a percent-passing curve across several sieve sizes not at all. Not a judgement call: this exact shape was already decided once, for the identical case, in diggs:RILTPSpecificationType's own aggregateGradationCurveCoarseLimit/FineLimit pair (built reusing this type's shape, C2, 2026-08-16) - "the requirement that could NOT be an acceptance criterion," per that build's own test case comment. - maxDeviationFlowConeTime/GelTime/MarshFunnelTime/UnitWeight state a tolerance RELATIVE TO diggs:DesignGroutMix's own design value ("percent deviation... from design mix value"), not an absolute limit. diggs:AbstractAcceptanceCriterionType's limit compares an evaluated value against a fixed value or band; it has no element for "the limit is itself another cited object's field, plus or minus X%." Forcing these into diggs:PerformanceCriterion today would either lose the relative meaning or misstate it as absolute. Left as typed elements rather than invent a reference-value mechanism speculatively; worth reconsidering if the criterion family ever grows one for an unrelated reason.</documentation>
  </annotation>
  <complexContent>
    <extension base="diggs:AbstractProgramSpecificationType">
      <sequence>
        <element minOccurs="0" name="aggregateGradationCurveCoarseLimit" type="diggs:GroutGradingSpecificationPropertyType">
          <annotation>
            <documentation>A property containing gradation data that describes a grain size curve that defines the coarse grain size limit for grout aggregate.</documentation>
          </annotation>
        </element>
        <element minOccurs="0" name="aggregateGradationCurveFineLimit" type="diggs:GroutGradingSpecificationPropertyType">
          <annotation>
            <documentation>A property containing gradation data that describes a grain size curve that defines the fine grain size limit for grout aggregate.</documentation>
          </annotation>
        </element>
        <element minOccurs="0" name="maxDeviationFlowConeTime" type="diggs:DimensionlessMeasureType">
          <annotation>
            <documentation>Maximum allowable percent deviation of flow cone time from design mix value.</documentation>
          </annotation>
        </element>
        <element minOccurs="0" name="maxDeviationGelTime" type="diggs:DimensionlessMeasureType">
          <annotation>
            <documentation>Maximum allowable percent deviation of gel time from design mix value.</documentation>
          </annotation>
        </element>
        <element minOccurs="0" name="maxDeviationMarshFunnelTime" type="diggs:DimensionlessMeasureType">
          <annotation>
            <documentation>Maximum allowable percent deviation of marsh funnel time from design mix value.</documentation>
          </annotation>
        </element>
        <element minOccurs="0" name="maxDeviationUnitWeight" type="diggs:DimensionlessMeasureType">
          <annotation>
            <documentation>Maximum allowable percent deviation of mud balance density from design mix value.</documentation>
          </annotation>
        </element>
      </sequence>
    </extension>
  </complexContent>
</complexType>