Coarse aggregate shall consist of crushed stone, crushed gravel, or crushed slag conforming to the requirements of §703-02, Coarse Aggregate, except for gradation. When aggregates from approved natural fine sand sources are combined with coarse aggregates in 35 the mixture, aggregate particles shall meet additional requirements as follows: 1.

Learn More39-2.02A Job Mix Formula. -A job mix formula shall be established by the Engineer for each designation of asphalt concrete, based on samples of conforming aggregate materials supplied for each source or supplier proposed by the Contractor. Where more …

Learn Morecrushed aggregate jobmix formula Aggregate Impact Test Ten Percent Fines Test 8Aggregate Crushing Value SS 1974 1 10 Fines Crushing Tests 6 Two tests are required and the ten percent fines values TFV are averaged to obtain the final result36 mm sieve36 mm is weighed mass B and expressed as a percentage of the original mass mass A to give the ...

Learn MoreThe job-mix formula report from the accredited laboratory shall state the Marshall or Super-pave properties, optimum asphalt content, combined and individual aggregate grading, mixing and placing temperatures, aggregate characteristics, and mineral admixture or liquid anti-strip type

Learn MoreCrushed Particles (SD 211) Used for determining % of pieces having one or more crushed faces. One crushed face: has a projected area of at least 25% of the max. cross-sectional area of the particle and the face has sharp and well-defined edges. Two crushed faces: the largest crushed face has a projected area of at least 50% of the max. cross-sectional area of the particle and the

Learn Moreformula for the proposed aggregate. The job-mix formula shall be in accordance with 441.02 of the 2002 Ohio Department of Transportation Construction and Material Specifications for Type 2 Asphalt Concrete. As an alternative, the Contractor may submit a job-mix formula which has been approved within 15 months of the date of submission by the ...

Learn MoreThe design job mix formula (JMF) for eachmixture shall establish a single percentage of bituminous material to be added to the aggregate, and a single temperature for the mixture at the plant discharge point. The City may test the Contractor''s proposed JMF for each hot bituminous pavement grading utilizing materials actually produced and

Learn MoreJOB MIX FORMULA (JMF) CONCRETE FIELD COMMUNICATION ... COARSE AGGREGATE INTERMEDIATE AGGREGATE FINE AGGREGATE Source Name MDOT Source No. MDOT Series Class Specific Gravity (Bulk Dry)* ... Percent Crushed MDOT Freeze-Thaw (F-T) Dilation Specific Gravity (Bulk Dry) of F-T

Learn More3. Only applies to crushed gravel. 4. Aggregates, without mineral filler or additives, combined as used in the job-mix formula (JMF). Table 2 Gradation Requirements for Fine Aggregate Sieve Size % Passing by Weight or Volume 3/8″ 100 #8 70–100 #200 0–15 2.2. Mineral Filler. Mineral filler consists of finely divided mineral matter such as ...

Learn Moresieve as the corresponding job-mix formula, which in this case was also 55 per cent. Each of the two HL3 surface course and the HL6 base course studies have been conducted on paving mixtures made with three different types of aggregates: 1. all crushed aggregate with a particle index of 14.0 2.

Learn More(b) Type B aggregate for mineral aggregate base shall consist of crushed or uncrushed gravel, crushed or uncrushed chert, crushed stone or crushed slag, and other finely divided particles. Recycled concrete aggregate or reclaimed asphalt pavement, at a maximum rate of 30%, by weight, may be used for Type B aggregate,

Learn More2. Only applies to crushed gravel. 3. Aggregates, without mineral filler, RAP, RAS, or additives, combined as used in the job-mix formula (JMF). Table 2 Gradation Requirements for Fine Aggregate Sieve Size % Passing by Weight or Volume 3/8″ 100 #8 70–100 #200 0–30 2.2. Mineral Filler. Mineral filler consists of finely divided mineral ...

Learn MoreI. JOB MIX FORMULA 1. For each class designation specified in the bid schedule, provide combinations of granular or granular/soil mixtures as applicable. Perform all required source aggregate quality testing prior to submission of material for Job Mix Formula (JMF). 2. Submit a 150 lb. sample of the proposed aggregates or aggregate/soil mixtures at

Learn MoreAggregates shall consist of crushed stone, crushed gravel, or crushed slag with or without sand or other inert finely divided mineral aggregate. The portion of materials retained on the No. 4 (4.75 mm) sieve shall be known as coarse aggregate, the portion passing the No. 4 (4.75 mm) sieve and retained on the No. 200 (0.075 mm) sieve

Learn MoreSection 401-3.2 JOB MIX FORMULA – In this section, the Asphalt Institute reference was changed, the TSR requirement was increased, and the requirements for the Job Mix Formula submittal were changed. Criteria is also given for the mix design volumetrics and aggregate gradations. 401-3.2 JOB MIX FORMULA.

Learn More307.4.2 A bituminous treated base (BTB) job mix formula shall be a blend of asphalt binder, graded aggregate base and anti strip admixture proportioned in accordance with the requirements of this specification. The job mix formula shall be prepared in a laboratory under the direct supervision of a New Mexico Registered Professional ENGINEER.

Learn MoreThat portion of the aggregate retained on the No. 10 Sieve shall be composed of at least 95 percent by weight of crushed aggregate. The job- mix formula shall be within the limits specified above. The maximum permissible variation from the jobmix formula shall be as follows. However, in …

Learn MoreGENERAL LIMITS AND JOB MIX FORMULA TOLERANCES Sieve Size General Limits Job Mix Formula % Passing Tolerance (1) 1/2 inch 100 - 1/4 inch 90-100 - 1/8 inch 12-37 ±6 No. 80 2-10 ±3 No. 200 0-2 - Bituminous Material %(2) 5.0 – 7.0 ±0.4 (1) All aggregate percentages are based on the total weight of the aggregate.

Learn Moresieve as the corresponding job-mix formula, which in this case was also 55 per cent. Each of the two HL3 surface course and the HL6 base course studies have been conducted on paving mixtures made with three different types of aggregates: 1. all crushed aggregate with a particle index of 14.0 2.

Learn MoreAggregates shall consist of crushed stone or crushed gravel with or without sand or other inert finely divided mineral aggregate. The portion of materials retained on the No. 8 sieve is coarse aggregate. The portion passing the No. 8 (2.36 mm) sieve and retained on the ... mixture meets the grading requirements of the job mix formula (JMF).

Learn More2.1.2.1 Fine aggregate may be 100 percent manufactured aggregate. 2.1.3 Mineral filler shall conform to AASHTO M 17 except that 100 percent shall pass the No 16 sieve, waiving the requirement for the No. 30 sieve. 2.1.4 Coarse aggregate shall be crushed stone or crushed gravel and shall have a percentage of wear as determined

Learn More2. Only applies to crushed gravel. 3. Aggregates, without mineral filler, RAP, RAS, or additives, combined as used in the job-mix formula (JMF). • LA Abrasion requirement is 5% lower than 341… • Magnesium Sulfate Soundness is 5% lower than 341… WHAT MAKES SP AGGREGATE REQUIREMENTS DIFFERENT?

Learn More· Physical Requirements of aggregates Design Procedure Job Mix Formula Summary Methodology ... The material to be used for the work shall be crushed stone. The material shall be free from organic or other deleterious constituents and conform to the required specifications.

Learn MoreA. Job Mix Formula - Design. Develop and submit for approval, a proposed job mix target aggregate gradation for each grade of pavement mix to be produced. Establish a single target value for each specified aggregate size within the job mix target limits in Table 701-15 of Subsection 701.03. The job mix tolerances will be applied to the approved

Learn MoreSubmit for acceptance a job mix formula for the recycled mixture to be supplied. Confirm the job mix formula, the source of aggregate, grade of bituminous material and the proportion of crushed RAP to be used in the mixture. Furnish only one grade of bituminous material …

Learn MoreProvide aggregate for microsurfacing that is crushed gravel, crushed calcite cemented sandstone, or chat which is a material obtained from the mining of lead and zinc ores. Produce crushed gravel by mechanical crushing of siliceous gravel and not containing …

Learn More· A number of agencies (including roughly half of U.S. states) specify the use of crushed aggregate for unbound base layers. At the same time, crushing will increase the proportion of fine particles in the material, so it is important to determine and maintain the appropriate aggregate gradation.

Learn MoreAggregates shall consist of crushed stone, crushed gravel, or crushed slag with or without sand or other inert finely divided mineral aggregate. The portion of materials retained on the No. 8 sieve ... the job mix formula. Job Mix Formula. No bituminous mixture for pavement shall be produced until a job mix formula has

Learn MoreMake mineral aggregate by crushing and screening hard, tough, durable stone of uniform quality. The crushed aggregate shall be free from soft or disintegrated pieces, clay, dirt, or other deleterious substances. Coarse aggregate shall be that portion of the mineral aggregate retained on a No. 4 sieve.

Learn MoreThe aggregate gradation and bituminous material quantities shall meet the requirements noted in Table I. The Job Mix formula shall be submitted on forms available at the Department''s Regional offices. The following information shall be provided with the Job Mix formula submission: 1. Aggregate gradation band and aggregate types. 2.

Learn More· Crushed aggregates and sharp sands produce higher stability of the mix when compared with gravel and rounded sands. ... The Percentage of Passing of Job Mix Formula obtained by using optimizing ...

Learn MoreAfter the jobmix--formula is established and approved by the Engineer, the aggregate gradation and the binder content of the HMA mixture furnished for the work shall be maintained within Range 1uniformity tolerance limits permitted for the job-mix-formula specified in Table 1. When mixtures are tested for Air Voids, Voids in Mineral Aggregate

Learn MoreAggregates shall consist of crushed stone, crushed gravel, or crushed slag with or without naturalsand or other inert finely divided mineral aggregate. The portion of combined materials retained on the No. 4 ... resulting mixture meets the grading requirements of the job mix formula (JMF). 401-3.2 JOB MIX FORMULA.

Learn MoreA job mix formula for aggregate base course, shall be certified in accordance with the of these specifications. Each job mix formula submitted and authorized for use under this specification shall be identified by a number, unique to that job mix formula and aggregate production plant/pit. If a change in material(s) from that specified in the job

Learn MoreA. Mechanical Stabilizing Agents: Use crushed aggregates, RAP, or crushed PCC in the gradation called for in the job mix formula. B. Bituminous Stabilizing Agent: Use asphalt emulsion (HFMS-2s) meeting the requirements of Iowa DOT Section 4140, or foamed asphalt using PG 52-34S asphalt binder meeting the requirements of Iowa DOT Section ...

Learn MoreThis paper presents a computerized method for asphalt concrete job-mix formula design; The Excel Solver using Linear Programming by Optimization method was adopted in this paper. The solver can handle problems that involve many variable cells and can

Learn MoreAnalytical Method for Asphalt Concrete Job Mix Formula Design Penki Ramu 1, P.Sarika 2, V.Premraj Kumar 3 and Dr.P.Sravana 4 1 Post Graduate Student, Dept. of Civil Engineer ing, JNTU Hyderabad ...

Learn MoreTo calculate how much gravel you need to cover a rectangular area you need to multiply the volume by the gravel density. The volume formula for a rectangular (or square) box in cubic feet is height (ft) x width (ft) x length (ft), as seen in the figure below: For example, to fill a box with a width of 3ft and a length of 6ft, to a depth of 1ft ...

Learn MoreConstruction Aggregate Calculator. Enter the width, length, thickness, and product density and hit the "Calculate" button to calculate your estimate. If you do not know the product density, use the optional density estimator* or contact a local sales representative.

Learn MoreAggregates shall consist of crushed stone, crushed gravel, or crushed slag with or without natural sand or other inert finely divided mineral aggregate. The portion of combined materials retained on the No. 4 ... resulting mixture meets the grading requirements of the job mix formula (JMF). 403-3.2 JOB MIX FORMULA.

Learn MoreThis requirement delineates the aggregate size variety and ranges in mechanical analyses for standard sizes of coarse aggregate and screenings for use in the construction and maintenance of various types of highways. The gradation of the final composite mixture shall conform to an approved job mix formula, within the design range

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