AGGREGATE SPECIFICATION LIMITS & SAMPLING AND TESTING GUIDE
October 15, 2024				(See Specifications for Complete Details.)							Matls. IM 209
Supersedes October 18, 2022											Appendix C

TEST LIMITS	Spec #	F & T A	F & T C		LA Abrasion	Absorption	Chert	Shale	Clay Lumps	Plastic Index		Organic Material	Al₂O₃ Limit	Pore Index	Gradation Number
Fine Aggregate for PCC
PCC	4110							2.0							1
		Note: The fineness modulus must be no lower than 2.60. A target fineness modulus (or base-line) will be established for each source for continued approval.
		Note: Shale + Coal not to exceed 2% max.
PCC, Class L	4111							2.0							1
		Note: Only from approved PCC sources.
		Note: Maximum 45% between sieves and must have a fineness modulus no lower than 2.30.
		Note: Shale + Coal not to exceed 2%max.
Intermediate Aggregate for PCC
-Crushed Stone	4112	6							0.5				0.5		2
-Pea Gravel (Structural)							2	1				0.01
		Note: For Pea Gravel used in Nonstructural concrete, maximum 3% chert allowable
Coarse Aggregate for PCC
Crushed Stone	4115
-Structural		6			50		2	1	0.5			0.01	0.5		3-5
		Note: See 4115.02 for maximum allowable objectionable materials. Note: Must meet Aggregate Use Durability Requirements defined in 4115.04 Note: For Nonstructural use, maximum 3% chert allowable
Gravel	4115
-Structural		6			35		2	1	0.5			0.01			3-5
		Note: See 4115.02 for maximum allowable objectionable materials. Note: Must meet Aggregate Use Durability Requirements defined in 4115.04 Note: For Nonstructural use, Maximum 3% chert allowable
Bridge Deck	4115.05
-Surfacing, Repair & Overlay		6			40	2.5	0.5					0.01	0.5		6
		Note: Unsound Chert+Shale+Coal+Iron not to exceed 1%.
		Note: Unsound Chert particles are defined in 4115.02. Note: Must come from a Class 3 durability or better source

AGGREGATE SPECIFICATION LIMITS & SAMPLING AND TESTING GUIDE
October 15, 2024						(See Specifications for Complete Details.)										Matls. IM 209
Supersedes October 18, 2022																Appendix C

TEST LIMITS		Spec #		F & T A	F & T C			LA Abrasion	Absorption		Chert	Shale		Clay Lumps	Plastic Index		Organic Material			Al₂O₃ Limit	Pore Index	Gradation Number
Class V Aggregate
Coarse		4116.02		6				40						0.5								7
Fine												2
Combination of Materials With Class V
Coarse Limestone				Note: See 4116 for cement requirements.																		8
Limestone Screenings				Note: Acquire limestone from sources meeting the specified coarse aggregate durability class for PCC.
				Note: Must meet the requirements of 4115 and be only from sources acceptable as coarse aggregate.
Granular Leveling Material
Aggregate		4117.02		6	20			50												0.5		18,19,21
				Note: Meet at least one of the C-Freeze, A-Freeze, or Almina requirements. Note: Natural Sand must meet gradation 18 only
Pipe Bedding
Aggregate		4118.02			20			50														3
(Non-Primary Roads)
(				Note: >75% Crushed Gravel or Crushed Stone. Crushed PCC may be used if approved by the Engineer. Note: Crushed PCC must meet requirements of Materials IM210
Pipe Bedding and Backfill
Aggregate		4119.02			15			45						4								10,11
(Interstate and Primary)				Note: >75% Crushed Gravel or Crushed Stone. Crushed PCC may be used if approved by the Engineer.
				Note: If a Crushed Gravel is used meet the requirements of 4120.03. Note: Crushed PCC must meet requirements of Materials IM210.
Granular Surfacing
Aggregate for Granular Shoulders		4120.02		Note: Requirements are equivalent to 4120.04, 4120.05 or 4120.06																		Per 4120.02
				Note: See 4120.02 Note: If using requirements of 4120.04 Abrasion limit is 50
Class C Gravel		4120.03			15							10										10
				Note: Percent of Clay Lumps + percent passing #200 sieve not to exceed 15%.
				Note: Percent of Clay Lumps + percent of (+4) shale + percent passing #200 not to exceed 20%.
Class A Crushed Stone		4120.04			15			45						4.0								11
Class B Crushed Stone		4120.05			20			55						4								11
				Note: “C” Freeze + Abrasion not to exceed 65%
Class D Crushed Stone		4120.06		Note: “C” Freeze, Abrasion, and Gradation to be specified by Contract Documents.
Paved Shoulders Fillets		4120.07			15			45						4								11
				Note: Recycled material must meet requirements of 4120.02
AGGREGATE SPECIFICATION LIMITS & SAMPLING AND TESTING GUIDE
October 15, 2024						(See Specifications for Complete Details.)										Matls. IM 209
Supersedes October 18, 2022																Appendix C

TEST LIMITS	Spec #		F & T A		F & T C			LA Abrasion	Absorption		Chert	Shale		Clay Lumps	Plastic Index		Organic Material			Al₂O₃ Limit	Pore Index	Gradation Number
Granular Subbase
	4121		25					50												1.5		12a(Cr. St.) 12b(Grav.)
			Note: Combinations of crushed PCC, sand, crushed gravel, or crushed stone may be used.
			Note: Specification limits are for crushed stone or crushed gravel. Note: Alumina limit does not apply to gravel
Crushed Stone-Base
Macadam Stone	4122				15			50														13a (Visual)
Choke Stone					15			50														13b
Modified Subbase
	4123				15			50														14
			Note: If gravel only, 75% of +3/8” must be crushed with a minimum of one fractured face.
			Note: Reclaimed pavements meeting Materials IM 210 may be used with no more than 50% RAP.
Aggregate for Slurry Mixture
	4124.03		10					40									0.01			0.7		22 or 23
			Note: Friction Type 4 or better, sand equivalent of not less than 45
Aggregate for Bituminous Sealcoat
	4125.03				10			40				5										1, 19-21
			Note: Friction Type 4 or better Note: 5% maximum Shale for +No. 4 Sieve, 2% maximum for +No. 16 Sieve (Sand Cover Aggregate) Note: Must be free from objectionable clay coatings
Aggregate for Polymer-Modified Microsurfacing
	4126.03		10				40			0.5			0.5					0.01	0.7				37, 38
			Note: Sand Equivalence of 45 Minimum. Note: Total of all combined unsound chert+shale+coal+iron 1.0
			Note: For Friction Type 2 crushed stone requires Abrasion loss 30 max and Sand Equivalence of 60 Minimum.
Coarse Aggregate for HMA
Type A	4127.02		15					45	6.0					2.0			0.01			1.0		Per Form 955
Type B
Primary	4127.02		25		10			45	6.0					3			0.01			1.5		Per Form 955
Non-Primary	4127.02		45		10			45	6.0					3			0.01			1.8		Per Form 955
			Note: Organic materials maximum 0.01%.
Fine Aggregate for HMA
Type A	4127.03											2.0		1.5			0.01					Per Form 955
Type B												5.0		3			0.01
			Note: Crushed gravel or stone processed from coarse aggregate meeting requirements of 4127.02. Note: 100% Passing the 3/8-inch sieve.
	Note: Use Natural sand. For the wearing course, no more than 50% retained between two consecutive sieves below the #4 sieve.