gradation requirements of recylced concrete

Jan 01, 2017· MATERIALS SAMPLING GUIDE INDEX OF SECTIONS Page I-2 January 1, 2017 1 Crushed Rock for Base Course – Quality, Gradation & Compaction 8-1 2 Crushed Rock Screenings for Base Course – Quality, Gradation & Compaction 8-1 SECTION 9 – GRADING

1116-2, or other gradation approved by the Engineer. Optimization is not required for concrete for patching pavements more than 10 years old, or Commercial Grade Concrete. The Engineer may waive the optimization requirements if the concrete meets all the requirements of DIVISION 400 and/or DIVISION 500. Follow these guidelines: 1. Do not permit ...

Reclaimed hydraulic cement concrete may be used in non-watercourse applications. Gabion stone, rip-rap and rock protection shall meet the physical property requirements shown in Table 7 and the gradation requirements shown in Table 8. Page 4 Rev. Date: 11/2012 OPSS.PROV 1004

Nov 15, 2006· ITEM NO. - TITLE AND REQUIREMENTS. 334 - HOT-MIX COLD- LAID ASPHALT CONCRETE PAVEMENT. SPECIFICATION REQUIREMENTS 1) Specify the mixture Grade for each course. 2) Specify surface aggregate classification requirements. 3) Specify if surface aggregate classification requirements apply to other than surface courses. 4) Specify any additional aggregate requirements …

the recycled concrete. And shall identify location from where concrete will be removed; recycled concrete shall be placed in max 4-in lifts and each lift shall be compacted by a min of 3 passes w/ 10-ton roller (304.3.5) New Jersey Used as Dense-graded aggregate conforms with gradation and plasticity requirements (901.08)

Materials 1. Aggregates: The aggregate shall be limited to crushed, aggregates. a. The aggregate shall be combined into a total blend that will produce an acceptable job mix within the gradation limits shown below in the following table. The blend shall be made from at least two stockpiles of different gradations.

1) Regarding structural number on Crushed Concrete Base, Manatee County to approve SN 0.18 if following criteria is met and maintained: A) Limerock Bearing Ratio value of 150 or greater. B) Gradation conforms to FDOT Specifications 2015. C) Deleterious materials conform to FDOT Specifications 2015.

The optimized gradation concrete mix design and optimized gradation are the responsibility of the ... Pavement do not have to meet the gradation requirements of Subsection 701.05.C. All OGCMD ... on the Approved Materials List for use in hydraulic cement concrete or limited use. All crushed fine aggregate (manufactured sand) in the mix shall be ...

in concrete • Fines limit is 3% in ASTM C 33 for concrete subject to abrasion • Manufactured sands 5% and 7% • Coarse aggregate limit is 1% (1.5% for crushed stone) 32 Gradation & Fineness Modulus: Dry Sample Wt. g Sample: Retained Sieve Size, (mm)

B.9 Crushed Concrete and Salvaged Aggregate The Contractor may incorporate no greater than 50 percent of crushed concrete and salvaged aggregate in non-wear mixtures. Do not use crushed concrete in wearing courses. B.10 Ash Sewage sludge ash and waste incinerator ash are allowed as an aggregate source at a maximum of 5% of the total

Crushed stone Reclaimed asphalt Crushed gravel Reprocessed material Crushed concrete Blended material 305.2 Materials 305.2.1 General (1) Provide aggregate conforming to 301.2 for crushed stone, crushed gravel, crushed concrete, reclaimed asphalt, reprocessed material, or blended material. Provide QMP for dense-graded base as specified in 730.

crushed faces as determined by Tex-460-A, Part I. Blending of 2 or more sources is allowed. 2.1.2.4. Type D. Type A material or crushed concrete. Crushed concrete containing gravel will be considered Type D material. Crushed concrete must meet the requirements in Section 247.2.1.3.2., "Recycled …

(b) Asphaltic Concrete: Equipment for asphaltic concrete shall conform to Section 503. (c) Stone, Crushed Slag, and Recycled Portland Cement Concrete: Equipment used to mix stone, crushed slag, and recycled portland cement concrete shall produce a uniform blend conforming to the requirements elsewhere herein.

material such as sand, gravel, crushed stone, blast-furnace slag, and lightweight aggregates that usually occupies approxi-mately 60 to 75% of the volume of concrete. Aggregate properties significantly affect the workability of plastic concrete and also the durability, strength, thermal properties, and density of hardened concrete.

Hence, the properties of recycled aggregate concrete 66 cubes, 66 performance of the recycled aggregate concrete needs to be cylinders and 66 beams were casted for compressive improved to satisfy the requirements of the national strength, splitting tensile strength and flexural strength, standards respectively. 1.2 Recycled Coarse Aggregates ...

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, provided the combined aggregate blend meets all the requirements specified below.

3. Gradation Ensure that the finished product meets the quality and gradation requirements of Subsection 815.2.01 for Group II aggregates, except that the aggregate will be recycled concrete. Ensure that the finished product is free of foreign materials such as asphaltic concrete, steel reinforcement, clay

MATERIAL. ACCEPTANCE PROCEDURE 1,2,3. ACCEPTABLE USES: Recycled Portland Cement Concrete Aggregate(RCA) §733-07 §733-04 Subbase Course – May be used as a substitution of Type 1, 3 or 4 provided it meets the gradation requirements for the subbase Type outlined in TABLE 733-04A Subbase Gradation. §733-08 Embankment In Place – May be used as embankment in place.

Recycled Concrete Aggregate Applications. Hardened concrete has characteristics similar to that of natural stone, which makes it suitable for most construction projects aggregates are used for. Often, concrete can be taken from a project, and then recycled and re-used in the same project.

crushing the recycled concrete aggregate. If necessary, fine aggregate may be added to produce the correct gradation. The fine aggregate shall be produced by crushing stone, gravel, slag, or recycled concrete that meet the requirements for wear and soundness specified for coarse aggregate.

includes "crushed concrete" as an acceptable source of aggregate material. Care must be taken, however, to assure that quality and gradation requirements are not compromised when recycled concrete is used in lieu of other aggregate materials. Concrete removal and crushed concrete stockpiling and handling must be performed in

May 14, 2015· This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and texture are some of the physical and mechanical characteristics that contribute to the strength and durability of concrete.

3. Gradation Ensure that the finished product meets the quality and gradation requirements of Subsection 815.2.01 for Group II aggregates, except that the aggregate will be recycled concrete. Ensure that the finished product is free of foreign materials such as asphaltic concrete, steel reinforcement, clay

the requirements of 304 in lieu of crushed gravel or crushed stone base course (fine gradation) providing that the following requirements are met: (a) The material shall meet the gradation requirements of the material being replaced. (b) The approved material shall be applied across the entire cross-section at a constant depth.

1. Recycled crushed hydraulic cement concrete is not subject to 5-cycle magnesium sulfate soundness requirements. 2. Allowed when air-entrained concrete is used at the Contractor's option. 3. Only when air-entrained concrete is required by the plans.

Testing Requirements Material Method Concrete Sand or Mortar Sand TR 112 & TR 113 Method B ... Testing Requirements continued Crushed Slag – Base Course Aggregate TR 112 & TR 113 Method B ... sample size in order to determine the gradation of fine aggregate. DOTD TR 113-11 Rev. 12/11 Page 5 of 19 Method A

concrete and the irregular shape of recycled aggregate. Thus, a few researchers [9, 10] have interests about creep and shrinkage behavior of recycled concrete. A. Domingo-Cabo et al. [9] observed was that shrinkage of recycled concrete had 70 percent higher shrinkage rate than

Recycled Portland Cement Concrete. 3400. 2020. Recycled Asphalt Concrete Pavement. 4000. 2400 [1] Based on average dry rodded weight on record at the Laboratory. The conversion factors listed are the long gradation weights. These numbers are based on the dry rodded weights of Nos. 67, 57, or 8 gradation.

Effective with the November 2020 Letting 2021 Standard Specifications 301.2.4 Aggregate Requirements 301.2.4.1 General (1) Obtain material from department-approved sources as specified under 106.3.4.2 and furnish material substantially free of deleterious materials that include: shale, chert, phyllite or other altered rock

1. Recycled crushed hydraulic cement concrete is not subject to 5-cycle magnesium sulfate soundness requirements. 2. Allowed when air-entrained concrete is used at the Contractor's option. 3. Only when air-entrained concrete is required by the plans.