1033AGGREGATES

- 858 - SECTION 1033 -- AGGREGATES

1033.01Description

sand-gravel, coarse sand, fine sand, or a mixture of these materials composed of clean, hard, durable, and uncoated particles. Crushed rock shall be crushed limestone, dolomite, granite, quartzit e, or other ledge rock approved for the intended purpose by the Department’s Materials and Research Engineer.

optimize aggregate blends utilizing mo re locally available materials.

of two or more different aggregates. It is the responsibility of the contractor to meet additional material characteristics requirements; such as, but not limited to particle shape, cubicity, angularity, etc., when designing a mix.

1033.02Material Characteristics

Table 1033.01. All material source locations and quarries must be approved by the Department prior to use. Table 1033.01 Sampling and Testing Procedures Procedure Method Sampling NDOT T 2 Sieve Analysis NDOT T 27 Clay Lumps, Shale, and Soft Particles NDOT T 504 Abrasion AASHTO T 96 Freeze and Thaw Soundness NDOT T 103 Specific Gravity and Absorption (course aggregate) AASHTO T 85 Specific Gravity and Absorption (fine aggregate) AASHTO T 84 Total Evaporable Moisture Content of Aggregates by Drying AASHTO T 255 Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test AASHTO T 176 Sodium Sulfate Soundness AASHTO T 104 Calcium Carbonate NDOT C 25 Organic Impurities AASHTO T 21 Mortar-Making Properties= AASHTO T 71 Reducing Field Samples of Aggregate to Testing Size Lightweight Pieces in Aggregates AASHTO T 248 NDOT T 113

or flaky particles, loams, alkali, organic matter, paper, wood, or other deleterious matter as determined by the Engineer. .02

- 859 - b. Dolomite as herein defined is a magnesium limestone containing calcium carbonate and magn esium carbonate in approximately a 4 to 3 ratio.

80% (computed as CaCO 3 from the value determined for CaO).

No. 10 (2.0 mm) sieve and no more than 25% pass the No. 200 (75 μm) sieve. This definition applies to the sodium sulfate soundness test.

determined, additional quality testing for soundness and abrasion loss will be at the Engineer's discretion.

washed or coming from a wet pit shall be stockpiled for a minimum of 48 hours before being introduced into concrete.

durable and uncoated particles.

adequately washed by means approved by the Department.

means approved by the Department a nd have a Sand Equivalent value not less than 90 in accordance with AASHTO T 176.

may elect to stop aggregate production until such a time ASTM C 109 has been completed. The aggregate, when subjected to the test for mortar- making properties, shall produce a mortar having a compressive strength at the age of 7 days equal to or greater than that developed by mortar of the same proportions and consistency made of the same cement and aggregate after the aggregate has been washed to a sand equivalent greater than 90. Materials failing to produce equal or greater strength shall be unacceptable.

more than 10% by weight at the end of 5 cycles using Sodium Sulfate Soundness test AASHTO T 104.

0.5% clay lumps.

impurities which produces a color darker than the standard shall be further tested for its mortar-making properties in accordance with AASHTO T 71. The Engineer may elect to stop aggregate production until such a time AASHTO T 71 testing has been completed.

making properties, shall produce a mortar having a compressive strength at the age of 7 days equal to or greater than that developed by mortar of the same proportions and consistency made of the same cement and aggregate after the aggregate has been treated in a 3% solution of sodium hydroxide. Materials failing to produce equal or greater strength shal l be unacceptable,

Aggregates

- 860 - except when determined to be acc eptable under the provisions of Subsection 105.03.

B and 1033.03C

values) shall not exceed 3.5%. For Class R aggregate, fine aggregate is defined as any material passing a No. 4 sieve. Table 1033.02A AGGREGATE SPECIFICATION RANGE Percent Passing Percentage 1½” 1” ¾” ½” 3/8 No.4 No.10 No.20 No.30 No. 200 Class A Max Min -- -- -- -- 100 100 92 90 64 -- 40 10 3 Class B Max Min -- 100 -- -- -- 97 77 70 50 -- 40 16 3 Class C Max Min -- 100 -- -- -- 88 44 50 24 -- 20 4 3 Table 1033.02B Aggregate Classes and Uses Aggregate Class Concrete Description A Overlay Concrete SF B 47BD, 47B-HE, 47B-OL, PR 1 and PR 3 C BX

Gravel and Granite composed of cl ean, hard, durable, and uncoated particles.

exceed the following amounts: Clay Lumps ..................................... 0.5% Shale ............................................... 1.0% Soft Particles ................................... 3.5% Lightweight Pieces .......................... 3.5%

percent by weight values), plus the light weight pieces (a % by volume value) shall not exceed 3.5%. For Class R ag gregate, coarse aggregate is defined as any materials retained on a No. 4 sieve.

inhibit bond and free of injurious quantities of loam, alkali, organic matter, thin or laminated pieces, chert, or other deleterious substances as determined by the Engineer. .02

- 861 - (5) Aggregate for concrete shall not have a soundness loss greater than 8.0% by weight at the completion of 16 cycles of alternate freezing and thawing.

Abrasion loss percentage of not more than 40.

requirement of soundness loss of not mo re than 10% by weight at the end of 5 cycles using sodium sulfate solution.

exceed 0.10% expansion at 28 days.

expansion at 28 days, the aggregate proportions used on the project shall be tested in accordance to ASTM C 1567.

composed of Interground/blended cement being used on the project. ii. If the expansi on is greater than 0.10%, the coarse aggregate shall not be used.

1033.03A, B, and C

Table 1033.03A Aggregate Specification Range Percent Passing Percentage 1½” 1” ¾” ½” 3/8 No.4 No. 10 No. 20 No. 30 No. 200 Class E Max Min 100 100 92 90 66 -- 45 15 12 0 -- *4 0 -- 3 Class F Max Min -- -- 100 100 96 90 40 30 4 8 0 -- -- 3 *If the No. 200 sieve is less than 1.5% passing, the No.20 sieve could be increased to maximum of 6% passing. Table 1033.03B Aggregate Classes and Uses Aggregate Class Concrete Description E 47BD, 47B-HE, PR 1 and PR 3 F 47B-OL, Overlay Concrete SF

requirements. It is the Contractor’s re sponsibility to provide desirable mix properties; such as, but not limited to, workability, resistance to segregation, stable air void system, good finishing properties and good consolidation properties.

requirement in Table 1033.03C and 1033.03D.

Aggregates

- 862 - Table 1033.03C * Refer to Subsection 1002.04, Paragraph 1.b.(8) for the traditional 47B Mix Design Table 1033.03D Aggregate Classes and Uses Aggregate Class Concrete Description R 47B

constituent percentage of the combined aggregates gradation will be considered non-compliant. Any change of the combined gradation targets must remain within the Combined Aggregate Gradation Limits in Table 1033.03C. The Contractor sha ll resubmit a new mix design if the material is deemed non-compliant in accordance with Subsection 1002.04, Paragraph 1.

approved mix design are estab lished in Table 1033.03E.

cease operations when the specificati ons are not met. Production shall not be started again without the approval of the Engineer. Table 1033.03E Blended Aggregate Production Tolerances Sieve Size Tolerances No. 4 or greater + 5% No. 10 to No. 30 + 4% No. 50 + 3% Minus No. 200 + 1%

saturated with water before it is used. The wetting shall begin 24 hours before concrete mixing to allow complete saturation. *Class R - Combined Aggregate Gr adation Limits (Percent Passing) Sieve Size 1 ½ inch 1 inch 3/4 inch No.4 No.10 No.30 No. 50 No. 200 Max 100 100 98.0 70.0 50.0 30.0 12.0 3.0 Min - 92.0 85.0 45.0 31.0 8.0 2.0 0 .02

- 863 - 4. Bituminous Aggregate: Table 1033.04A Asphalt Combined Aggregate Grading Band Tolerance Band “A” Mix [1/2 inch (12.5 mm)] [To Be Used When Total Thickness Is 4 Inches (100 mm) Or Less] % Passing Sieve Size Min. Max. 1 inch (25.0 mm) 100% 3/4 inch (19.0 mm) 98% 100% 1/2 inch (12.5 mm) 94% 100% 3/8 inch (9.50 mm) 80% 98% No. 4 (4.75 mm) 52% 88% No. 10 (2.00 mm) 32% 70% No. 30 (600 μm) 17% 38% No. 50 (300 μm) 10% 24% No. 200 (75 μm) 3% 7% Table 1033.04B Asphalt Combined Aggregate Grading Band Tolerance Band “B” Mix [3/4 inch (19 mm)] [To Be Used When Total Thickness Is Greater than 4 Inches (100 mm)] % Passing Sieve Size Min. Max. 1 inch (25.0 mm) 100% 3/4 inch (19.0 mm) 98% 100% 1/2 inch (12.5 mm) 76% 93% 3/8 inch (9.5 mm) 60% 88% No. 4 (4.75 mm) 42% 78% No. 10 (2.00 mm) 27% 60% No. 30 (600 μm) 14% 38% No. 50 (300 μm) 8% 21% No. 200 (75 μm) 3% 7%

Tables 1033.04A and B.

an individual aggregate basis.

requirements for gravel shall be perfo rmed on the "Pre-Crushed" gradation.

deleterious substances in a quantity to exceed the following percentage by weight: Clay Lumps and Shale ..................................... 1.5 Soft Particles .................................................... 3.5

exceed 3.5% by weight.

Aggregates

- 864 - (6) All fractions of a crushed rock gradation shall be produced from the same type of material. The chemical and physical characteristics of the fraction passing the No. 4 (4.75 mm) sieve shall be substantially the same as those of the material which may be produced in the laboratory from the fraction which is retained on the No. 4 (4.75 mm) sieve. Crushed rock for asphaltic concrete shall have a percentage loss of not more than 8.0% by mass at the end of 16 cycles of the freezing and thawing test.

crushed rock for use in asphaltic conc rete, is of a nature adapted for the Los Angeles Abrasion Test, it shall have a loss percentage of not more than 40.

asphaltic concrete, shall have a soundness loss of not more than 12% by weight at the end of 5 cycles using sodium sulfate solution.

have a soundness loss of not more than 12 % by weight at the end of 5 cycles using sodium sulfate solution. The Los Angeles Abrasion Test shall have a loss percentage of not more than 40, and the "D" Grading is void.

recycled materials.

which is produced as a by-product of sugar beet refining will not be allowed.

stone, gravel, sand-gravel, sand, or a mixture of these materials that conforms to the following requirements: Min. Max. Total Percent Passing the No. 50 (300 m) Sieve 95 100 Total Percent Passing the No. 200 (75 m) Sieve 80 100 Plasticity Index [material passing the No. 200 (75 m) Sieve] 0 3

analyzed for its properties by the Department’s Materials and Research Laboratory. If the sample is approved, no further tests will be required for the project. If the sample fails to meet the requirements, then further tests will be required.

the mix, the recycled materials will not be considered. .02

- 865 - 5. Bituminous Sand Aggregate: Table 1033.05 Bituminous Sand Aggregate Gradation Limits Percent Passing Sieve Size Min. Max. 3/8 inch (9.50 mm) --- --- No. 4 (4.75 mm) --- --- No. 10 (2.00 mm) --- --- No. 50 (300 m) 100 60 No. 200 (75 m) 33 12

mineral matter.

extent that 100% will pass the 1/2 inch (12.5 mm) sieve and at least 90% will pass the No. 10 (2.00 mm) sieve before combining with ot her aggregates.

Abrasion loss percentage of not more than 40.

not more than 12% by weight at the en d of 5 cycles using sodium sulfate solution.

1033.07, as applicable

Table 1033.06 Gravel Surfacing Gradation Limits Percent Passing Sieve Size Target Value Tolerance 1 inch (25.0 mm) 100 0 No. 4 (4.75 mm) 78 17 No. 10 (2.00 mm) 16 * No. 50 (300 m) --- --- No. 200 (75 m) 3 3 * A deduction from contract bid pr ice will be made as specified in

Abrasion loss percentage of not more than 40.

not more than 12% by weight at the en d of 5 cycles using sodium sulfate solution.

Aggregates

- 866 - Table 1033.07 Crushed Rock for Surfacing Gradation Limits Percent Passing Sieve Size Target Value Tolerance 1 inch (25.00 mm) 100 0 No. 4 (4.75 mm) 40 +20 No. 10 (2.00 mm) 15 +15 No. 50 (300 m) --- --- No. 200 (75 m) 5 +5

of crushed limestone, quar tzite, or dolomite.

loss percentage of not more than 45.

more than 30 at the end of 16 cycles of the freezing and thawing test.

Table 1033.08 Crushed Rock Crushed Rock for Base Course Crushed Rock Screenings for Base Course Percent Passing Sieve Size Target Value Tolerance Target Value Tolerance 1 1/2 inch (37.5 mm) 100 0 3/4 inch (19.0 mm) 80 +15 100 0 3/8 inch (9.50 mm) 53 +17 73 +17 No. 4 (4.75 mm) --- --- 55 +15 No. 10 (2.00 mm) 20 +10 --- --- No. 20 (850 m) --- --- 28 +12 No. 200 (75 m) 5 +5 13 +7

or a mixture of these materials comp osed of clean, hard, durable, and uncoated particles.

granite, quartzite, or other ledge rock approved for the intended purpose by the Department’s Materials and Research Engineer.

containing calcium carbonate and magn esium carbonate in approximately a 4 to 3 ratio.

produced from the same type of material. The chemical and physical characteristics of the fraction passi ng the No. 4 (4.75 mm) sieve shall be substantially the same as those of the material which may be produced in the laboratory from the fr action which is retained on the No. 4 (4.75 mm) sieve. .02

- 867 - (4) Crushed rock for base course shall not contain shale, clay lumps, or other deleterious substances in a quantity to exceed a total of 2.5% based on the dry mass of the fraction retained on the No. 4 (4.75 mm) sieve.

quantities of dust, soft or flaky particles, loams, alkali, organic matter, paper, wood, or other deleterious material.

exceed 45.

loss of not more than 14 at the end of 16 cycles of the freezing and thawing test.

exceed 5.0% by weight.

AASHTO T 146) of the fraction of the cr ushed rock for base course passing the No. 40 (425 m) sieve and the percent of the crushed rock passing the No. 200 (75 m) sieve shall not exceed 48. W hen the fraction of the crushed rock for a base course passing the No. 200 (75 m) sieve does not exceed 4%, the plasticity index will not be determined and the product of the plasticity index and the percent passing the No. 200 (75 m) sieve will not be a requirement for such material.

87) of the crushed rock screenings passing the No. 40 (425 m) sieve shall not exceed 4.

Table 1033.08.

Table 1033.09 Foundation Course Mixture Percent Passing Sieve Size Target Value Tolerance 1 inch (25.0 mm) 100 0 No. 10 (2.00 mm) 62 +12 No. 40 (425 m) 34 +8 No. 200 (75 m) 9 +3

Aggregates

- 868 - Table 1033.10 Crushed Concrete Foundation Course Gradation Requirements Sieve Size Target Value (Percent Passing) Tolerance 1 1/4 inch (31.5 mm) 100 0 1 inch (25.0 mm) 95  5 3/4 inch (19.0 mm) 81 12 No. 4 (4.75 mm) 38 12 No. 10 (2.00 mm) 24 11 No. 40 (425 m) 9  5 No. 200 (75 m) 3  3

at least 90% will pass a 1/ 2 inch (12.5 mm) sieve and at least 60% will pass a No. 10 (2.00 mm) sieve. The binder sh all be pulverized before it is mixed with the other aggregates.

the Los Angeles Abrasion Test, the loss percentage shall not be more than 40.

than 12% by weight at the end of 5 cy cles using sodium sulfate solution.

Table 1033.09 or 1033.10, as applicable.

Procedures

12 hours before use.

harmful contamination, segregation, excessive degradation, or other changes in the physical or chemical state or degree of uniformity.

the acceptance samples have been taken and tested, the right is reserved to retest and reject that part of the previously accepted material which is found unsatisfactory or require the Contractor to correct the deficiencies by reprocessing or providing other material meeting specification requirements.

stockpiling of fine aggregate and sand gravel aggregates.

loaders, conveyors, or other approved equipment.

allowed in the stockpiling or the remo val of crushed rock aggregates if the aggregate is damaged by the equipment.

aggregates or the inclusion of foreign ma terial in the aggregates while they are being removed from the stockpiles. .04

- 869 - 5. Storage of Material:

plant or at the site of the work, shall be stockpiled separately.

mixed or stored in the same pile or used alternately in the same class of construction or mix without permission from the Engineer.

different gradations) or which become contaminated by foreign materials shall not be used.

proportioning devices or scales.

systems may be deposited directly into the batch hoppers provided the equipment and procedures used will furnish aggregate of uniform gradation and moisture content.

maintain a uniform gradation and moistu re content in each aggregate used during the handling and batching operations.

Platte River Valley shall be considered to be from the same source.

1033.04Acceptance Requirements

Section and sampling and testing requirements as described in the Department’s Materials Sampling Guide .

- 870 - SECTION 1034 -- SOIL BINDER

1034.01Description

approved by the Engineer.

1034.02Material Characteristics

sieve, and shall have a plasticity in dex not less than 8 nor greater than 25.

1034.03Sampling and Testing Procedures

methods listed below: Sampling ........................... AASHTO T 2, AASHTO T 248 Preparatio n ........................ AASHTO T 87 Sieve Analysis ................... AASHTO T 27 Plasticity I ndex .................. AASHTO T 89, AASHTO T 90

1034.04Acceptance Requirements

Section and sampling and testing requirements in accordance with the Department’s Materials Sampling Guide .