527 SECTION 705 SCOPE
705.01.01 Materials Covered. This specification covers the quality and size of local mineral materials and
commercial mineral fillers used in bituminous courses. REQUIREMENTS
705.02.01 General. Provide mineral aggregate from approved deposits. The use of aggregates from any
source may be prohibited when:
a.The character of the material is such, in the opinion of the Engineer, as to make improbable the furnishing of aggregates conforming to the requirements of these specifications.
b.The character of the material is such, in the opinion of the Engineer, that undue additional costs may be accrued by the State. The mineral aggregate shall be clean, hard, durable, free from frozen lumps, deleterious matter, and harmful adherent coatings. Crush and incorporate material between the sizes of the 250 mm (10 in.) in largest dimension and larger than the maximum size specified for a given product, into that specified finished product. Do not produce other products simultaneously by “bleeding off” aggregates. When Type 2C plantmix aggregate is specified for dense-graded plantmix, produce Type 2C and Open-Graded plantmix aggregates by screening all natural fines passing the 9.5 mm (3/8 in .) sieve from the coarse aggregate. Such fines may be reintroduced into the mix at a rate not to exceed 10% by dry mass of the combined aggregates. Stockpile such fines separately from other sizes of aggregate. Use natural fines only when all applicable mix design criteria have been met.
705.02.02 Deficiencies. If the product of any deposit is deficient in the fraction passing the 4.75 mm (No. 4)
sieve, additional filler from other approved deposits meeting the physical requirements may be added. Add the additional material to the drier in a uniform manner from a separate stockpile. If the added material is a commercial mineral filler, uniformly feed it directly to the plant. Do not construe this as a waiver of any of the requirements contained herein. PHYSICAL PROPERTIES AND TESTS
705.03.01 Plantmix Bituminous Surface Aggregates. The aggregate shall conform to the following
requirements: Percent Passing by Mass Sieve Size Type 2 Type 2C Type 3 25 mm (1 in.) ............................................... 100 ..................... 100 ....................... — 19 mm (3/4 in.) .......................................... 90-100 .................. 88-95 ..................... — 12.5 mm (1/2 in.) ............................................. — ..................... 70-85 .................... 100 9.5 mm (3/8 in.) ........................................... 63-85 ................... 60-78 ................. 85-100 4.75 mm (No. 4) .......................................... 45-63 ................... 43-60 .................. 50-75 2 mm (No. 10) ............................................ 30-44 ................... 30-44 .................. 32-52 1.18 mm (No. 16) ............................................ — ........................ — ........................ — 425 µm (No. 40) .......................................... 12-22 ................... 12-22 .................. 12-26 75 µm (No. 200) ............................................ 3-8 ....................... 3-8 ...................... 3-8 PROJECT CONTROL TESTS TEST METHOD REQUIREMENTS Sieve Analysis Nev. T206 Above Sampling Aggregate Nev. T200 — Fractured Faces (Type 3 Plantmix Aggregate) Nev. T230 35% Min. , 1 Fracture Min. (a) Fractured Faces (Type 2 or 2C Plantmix Aggregate) Nev. T230 80% Min. , 2 Fractures Min. (a) Plasticity Index (Blending with sand to eliminate plasticity will not be permitted) Nev. T212 10 Max. (a) Liquid Limit Nev. T210 35 Max. (a) Absorption of Coarse Aggregate Nev. T111 4% Max. (a)
a.Individual stockpiles before marination. 705 AGGREGATES FOR BITUMINOUS COURSES MIX DESIGN TESTS TEST METHOD REQUIREMENTS Sieve Analysis Nev. T206 Above Sampling Aggregate Nev. T200 — Fractured Faces (Type 3 Plantmix Aggregate) Nev. T230 35% Min. , 1 Fracture Min. (b) Fractured Faces (Type 2 or 2C Plantmix Aggregate) Nev. T230 80% Min., 2 Fractures Min. (b) Plasticity Index (Blending with sand to eliminate plasticity will not be permitted) Nev. T212 10 Max. (a) Liquid Limit Nev. T210 35 Max. (a) Absorption of Coarse Aggregate Nev. T111 4% Max. (b)
a.Individual stockpiles before marination.
b.Individual stockpiles. SOURCE REQUIREMENT TESTS TEST METHOD REQUIREMENTS Percentage of Wear (500 Rev.) AASHTO T96 37% Max. Soundness (Coarse Aggregate) (5 Cycles, Sodium Sulfate) AASHTO T104 12% Max. Loss Soundness (Fine Aggregate) (5 Cycles, Sodium Sulfate) AASHTO T104 15% Max. Loss Absorption of Coarse Aggregate Nev. T111 4% Max. Specific Gravity (Fine Aggregate) Nev. T493 2.95 Max. Specific Gravity (Coarse Aggregate) Nev. T111 2.95 Max.
705.03.02 Plantmix Bituminous Open -Graded Surface Aggregate. The aggregate shall conform to the
following requirements: Percent Passing by Mass Sieve Size 12.5 mm (1/2 in.) Size 9.5 mm (3/8 in.) Size 12.5 mm (1/2 in.) .................................................... 100 ................................ ..... 100 9.5 mm (3/8 in.) ................................ .................. 90-100 ................................. 95-100 4.75 mm (No. 4) .................................................. 35-55 ................................... 40-65 1.18 mm (No. 16) .................................................. 5-18 ................................ .... 12-22 75 μm (No. 200) .................................................... 0-4 ................................ ...... 0-5 PROJECT CONTROL TESTS TEST METHOD REQUIREMENTS Sieve Analysis Nev. T206 Above Sampling Aggregate Nev. T200 — Fractured Faces Nev. T230 90% Min. , 2 Fractures Min. (a) Plasticity Index (Blending with sand to eliminate plasticity will not be permitted) Nev. T212 10 Max. (a) Liquid Limit Nev. T210 35 Max. (a) Absorption of Coarse Aggregate Nev. T111 4% Max. (a)
a.Individual stockpiles before marination. MIX DESIGN TESTS TEST METHOD REQUIREMENTS Sieve Analysis Nev. T206 Above Sampling Aggregate Nev. T200 — Fractured Faces Nev. T230 90% Min. , 2 Fractures Min. (b) Plasticity Index (Blending with sand to eliminate plasticity will not be permitted) Nev. T212 10 Max. (a) Liquid Limit Nev. T210 35 Max. (a) Absorption of Coarse Aggregate Nev. T111 4% Max. (b)
a.Individual stockpiles before marination.
b.Individual stockpiles. SOURCE REQUIREMENT TESTS TEST METHOD REQUIREMENTS Percentage of Wear (500 Rev.) AASHTO T96 37% Max. Soundness (Coarse Aggregate) (5 Cycles, Sodium Sulfate) AASHTO T104 12% Max. Loss Soundness (Fine Aggregate) (5 Cycles, Sodium Sulfate) AASHTO T104 15% Max. Loss Absorption of Coarse Aggregate Nev. T111 4% Max. Specific Gravity (Fine Aggregate) Nev. T493 2.95 Max. Specific Gravity (Coarse Aggregate) Nev. T111 2.95 Max. AGGREGATES FOR BITUMINOUS COURSES 705
705.03.03 Commercial Mineral Filler. Commercial mineral filler shall be hydrated lime conforming
to ASTM C1097.
705.03.04 Screenings. The screenings shall conform to the following requirements:
Percent Passing by Mass 12.5 mm (1/2 in.) Size 9.5 mm (3/8 in.) Size Sieve Size Grade 1 Grade 2 12.5 mm (1/2 in.) ........................................ 100 .............. 100 ........................... — 9.5 mm (3/8 in.) ................................ ...... 90-100 .......... 50-80 ........................ 100 4.75 mm (No. 4) ...................................... 15-35 ............ 0-15 ........................ 20-45 2.36 mm (No. 8) ......................................... — ............... 0-5 ........................... — 1.18 mm (No. 16) ....................................... 0-4 ................ — ........................... 0-6 75 μm (No. 200) ........................................ 0-2 ............... 0-2 .......................... 0-2 Project Control Tests Test Method Requirements Sieve Analysi s ............................................................................ Nev. T206 ............................................... Above Sampling Aggregate ................................................................... Nev. T200 .................................................. — Fractured Faces ................................ ......................................... Nev. T230 .............................. 90% Min. (2 Fractures Min.) Cleanness Value ................................ ................................ ........ Nev. T228 ............................................. 81% Min. Stripping Test ................................ ................................ ............. Nev. T209 ........................................... Satisfactory Source Requirement Test s Test Method Requirements Percentage of Wear (500 Rev.) ................................ ............ AASHTO T96 ............................................ 37% Max.
705.03.05 Sand Blotter. The sand shall conform to the following requirements:
Sieve Size Percent Passing by Mass 12.5 mm (1/2 in.) ........................................................................... 100 4.75 mm (No. 4) ......................................................................... 90-100 1.18 mm (No. 16) ................................ ......................................... 30-75 75 μm (No. 200) ........................................................................... 0-12 Project Control Test s Test Method Requirements Sieve Analysis ............................................................................ Nev. T206 ............................................... Above Sampling Aggregate ................................................................... Nev. T200 .................................................. —
705.03.06 Micro -Surfacing Aggregate. The aggregate shall conform to the following requirements:
Percent Passing by Mass Sieve Size Type II Type III 9.5 mm (3/8 in.) ................................ ..................... 100 ................................ ..... 100 4.75 mm (No. 4) ................................................. 90-100 .................................. 70-90 2.36 mm (No. 8) .................................................. 65-90 ................................... 45-70 1.18 mm (No. 16) ................................................. 45-70 ................................... 28-50 600 µm (No. 30) .................................................. 30-50 ................................... 19-34 300 µm (No. 50) .................................................. 18-30 ................................... 12-25 150 µm (No. 100) ................................................. 10-21 .................................... 7-18 75 µm (No. 200) ................................................... 5-15 ................................ ..... 5-15 PROJECT CONTROL TESTS TEST MET HOD REQUIREMENTS Sieve Analysis Nev. T206 Above Sampling Aggregate Nev. T200 — Fractured Faces Nev. T230 90% Min., 2 Fracture Min. (a) Plasticity Index (Blending with sand to eliminate plasticity will not be permitted) Nev. T212 3 Max. Liquid Limit Nev. T210 35 Max. Sand Equivalent Nev. T 227 65 Min.
a.Individual stockpiles. 705 AGGREGATES FOR BITUMINOUS COURSES MIX DESIGN TESTS TEST METHOD REQUIREMENTS Sieve Analysis Nev. T206 Above Sampling Aggregate Nev. T200 — Fractured Faces Nev. T230 90% Min., 2 Fracture Min. (a) Plasticity Index (Blending with sand to eliminate plasticity will not be permitted) Nev. T212 3 Max. Liquid Limit Nev. T210 35 Max. Sand Equivalent Nev. T227 65 Min. Percentage of Wear (500 Rev.) AASHTO T96 30% Max. (b) Soundness (Coarse Aggregate) (5 Cycles, Sodium Sulfate) AASHTO T104 12% Max. Loss Soundness (Fine Aggregate) (5 Cycles, Sodium Sulfate) AASHTO T104 15% Max. Loss
a.Individual stockpiles.
b.The test is to be run on the aggregate before it is crushed. SOURCE REQUIREMENT TESTS TEST METHOD REQUIREMENTS Percentage of Wear (500 Rev.) AASHTO T96 30% Max. ( a) Soundness (Coarse Aggregate) (5 Cycles, Sodium Sulfate) AASHTO T104 12% Max. Loss Soundness (Fine Aggregate) (5 Cycles, Sodium Sulfate) AASHTO T104 15% Max. Loss
a.The test is to be run on the aggregate before it is crushed. SECTION 706 AGGREGATES FOR PORTLAND CEMENT PRODUCTS SCOPE
706.01.01 Materials Covered. This specification covers the quality and size of aggregates used in Portland
cement products. REQUIREMENTS
706.02.01 General. The mineral aggregate shall be the product of approved deposits. Aggregates from any
source having a history of alkali -silica reactivity in concrete will not be approved for use. The use of aggregates from any source may be prohibited when:
a.The character of the material is such, in the opinion of the Engineer, as to make improbable the furnishing of aggregates conforming to the requirements of these specifications.
b.The character of the material is such, in the opinion of the Engineer, that undue additional costs may be accrued by the State. For mix design approval, the proposed proportions of individual aggregates, combined mathematically, by volume or mass, shall produce a mixture within the grading limits for com bined aggregates as shown in the following table (not applicable to lightweight concrete): GRADING LIMITS OF COMBINED AGGREGATES SIEVE SIZE PERCENT PASSING BY MASS 37.5 mm (1 1/2 in.) 25 mm (1 in.) 19 mm (3/4 in.) 12.5 mm (1/2 in.) 9.5 mm (3/8 in.) 50 mm (2 in.) 100 — — — — 37.5 mm (1 1/2 in.) 87-100 100 — — — 25 mm (1 in.) 65-90 97-100 100 — — 19 mm (3/4 in.) 48-82 70-100 80-100 100 — 12.5 mm ( 1/2 in.) — — — 90-100 100 9.5 mm (3/8 in.) 39-57 43-70 46-70 70-90 70-100 4.75 mm (No. 4) 30-45 32-48 34-50 45-60 47-70 2.36 mm (No. 8) 23-38 23-42 24-42 38-56 34-55 1.18 mm (No. 16) 15-33 15-34 17-34 24-38 23-43 600 μm (No. 30) 8-24 8-25 10-25 13-27 15-33 300 μm (No. 50) 4-13 4-15 5-15 7-17 7-20 150 μm (No. 100) 1-5 2-7 2-7 0-6 2-8 75 μm (No. 200) 0-3 0-3 0-3 0-3 0-3 If changing the source of supply of aggregates, submit in writing the new gradations before their intended use. In addition to the aggregates meeting the individual source requirements, the combined gradation shall meet the following source requirement: TEST TEST METHOD REQUIREMENT Accelerated Detection of Potentially Deleterious Expansion of Mortar Bars Due to Alkali -Silica Reaction AASHTO T303 0.10% Max. Expansion Previous AASHTO T303 qualified aggregates for concrete mix designs will not automatically qualify for approval. Submit new AASHTO T303 test results with concrete mix design. Perform AASHTO T303 testing on the combined aggregates in the same proportions as the proposed mix design. The test may be performed on each size separately and the results combined mathematically. Perform the test using the proposed sources together with cement and mineral admixtures from the proposed mix design. The mineral admixture quantities will be considered as cement in meeting the req uirements of cement in Table I of Subsection 501.02 .05.
Source: Nevada Standard Specifications for Road and Bridge Construction, 2014 Edition. Pages 533–536 of 610.