elastic modulus of crushed stone

Resilient Modulus of Compacted Crushed Stone ROSA P

Nov 7, 2007 base materials included Dense Graded Aggregate (DGA), and Crushed Stone Base (CSB). Number 57s, crushed river gravel, recycled concrete, and asphalt drainage blanket samples were submitted for testing by engineers of the Kentucky Transportation Cabinet. A new mathematical resilient modulus 

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Relationship between compressive strength and modulus of

In the conventional equation for modulus of elastic ity, Eq. 1, the only difference in the type of coarse aggregate taken into account is the difference in the specific gravity, the effect of which is represented by the unit weight of concrete, γ. However, use of a wide variety of crushed stone has revealed that the difference in unit 

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PDF Version University of Vermont

Jun 30, 2001 The resilient modulus of subbase materials (EsB) had been selected as the primary parameter for structural analysis of New England subbase materials, and the AASHTO T2929 1 procedure had initially been used. However, the AASHTO TP4694 procedure was finally selected to determine moduli of 

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CONTROLLED LOW STRENGTH MATERIAL (CLSM) MOspace

Compressive Strength . 44. 3.3.4.3.3. Elastic Modulus and Poisson's Ratio . .. xi. LIST OF ILLUSTRATIONS. Figure. Page. 21: Crushed stone products and production of fines .. 9. 22: Fly ash production and 

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Elastic Modulus Pavement Interactive

Material, Elastic Modulus. MPa, psi. Diamond, 1,200,000, 170,000,000. Steel, 200,000, 30,000,000. Aluminum, 70,000, 10,000,000. Wood, 7,00014,000, 1,000,0002,000,000. Crushed Stone, 150300, 20,00040,000. Silty Soils, 35150, 5,00020,000. Clay Soils, 35100, 5,00015,000. Rubber, 7, 1,000 

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Resilient Modulus of Compacted Crushed Stone ROSA P

Nov 7, 2007 base materials included Dense Graded Aggregate (DGA), and Crushed Stone Base (CSB). Number 57s, crushed river gravel, recycled concrete, and asphalt drainage blanket samples were submitted for testing by engineers of the Kentucky Transportation Cabinet. A new mathematical resilient modulus 

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Evaluation of Resilient Modulus of Subgrade and Base Materials in

Nov 17, 2013 MEPDG levels 1 and 2 design/analysis require the input of for a given state of stress, which can be determined by performing a layered elastic analysis. AASHTO published AASHTO .. When confining pressure increases, it yields both gravel and crushed stone modulus increase. In this study triaxial tests 

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EllECTIVE ELASTIC MODULI DETERMINED FROM ROAD

DUAL WHEEL LOAD= 40 kN. DUAL WHEEL LOAD = 70 kN. DEFLECTION. (mm). DEFLECTION. ( mm ). 0. 0.1 0.2 0,3 0,4 0,5 0,6 0,7 0.8 0,9 IjO. 0. 0.1 0.2 0.3 0.4 0,5 0.6 0,7 0.8 0.9 1.0. SURFACING. I. 100. CRUSHED. STONE. 100. CRUSHED STONE. 200. BASE. 200. BASE. CEMENTED SU8BASE. CEMENTED. 300.

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CHAPTER 4 MECHANICAL BEHAVIOR of ROAD ResearchGate

construction such as: ▫ clay. ▫ sand. ▫ crushed unbound (granular) stone for road base and railway ballastbed . elastic modulus E has to be determined through rules of the thumb. For example, for sands is valid: .. in fact is a mixture of mineral aggregates (filler, sand, gravel or crushed stone) that are glued together by a 

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1 RESILIENT MODULUS: WHAT, WHY, AND HOW? Shane

Aug 31, 2007 knowledge of the resilient modulus of pavement layer materials allows determination of how the pavement system will .. of a given thickness (t) are characterized by an elastic modulus (E), Poisson's ratio (μ), and unit weight (γ). 40° assumed for crushed stone (typical range is 30 to 50°+). In this example 

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Elastic Modulus Pavement Interactive

Material, Elastic Modulus. MPa, psi. Diamond, 1,200,000, 170,000,000. Steel, 200,000, 30,000,000. Aluminum, 70,000, 10,000,000. Wood, 7,00014,000, 1,000,0002,000,000. Crushed Stone, 150300, 20,00040,000. Silty Soils, 35150, 5,00020,000. Clay Soils, 35100, 5,00015,000. Rubber, 7, 1,000 

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Seasonal Variations in The Moduli of Unbound Pavement Layers

The notation E (for Elastic modulus) is commonly used to refer to backcalculated moduli, and that convention will be used here, whereas the notation Mr will be At a bulk stress of 138 kPa (20 psi), their resilient modulus results ranged from a high value of 244 MPa (35.4 ksi) for the crushed stone having the higher fines 

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Gravel Roads EPA

under loads, elastic modulus is a fundamental property that must be considered. Resilient modulus defines the material's. Appendix A: G rave l Ro a d T h i c k n e s s D e s i g n M e t h o d s. Appendix A: Gravel Road Thickness Design Methods. A1. Although this manual was developed with emphasis on the maintenance 

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Seasonal Variations in The Moduli of Unbound Pavement Layers

The notation E (for Elastic modulus) is commonly used to refer to backcalculated moduli, and that convention will be used here, whereas the notation Mr will be At a bulk stress of 138 kPa (20 psi), their resilient modulus results ranged from a high value of 244 MPa (35.4 ksi) for the crushed stone having the higher fines 

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ACI STRUCTURAL JOURNAL TECHNICAL PAPER A Practical

Mar 1, 2010 Eq. (4), coarse aggregates affect the values of elastic modulus through the value of its unit weight γ. Specimens made of different crushed stone, however, have revealed that unit weight is not the only factor that produces different elastic. Fig. 2—Relationship between range of compressive strength.

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Layer Coefficients for New and Reprocessed Asphaltic Mixes

give different ranking of the materials, compared to the ranking using the resilient modulus results. It is observed that asphalt mixtures vary significantly in their rutting behavior in the laboratory and thus can have different contribution to pavement performance. It is recommended that proposed layer coefficients be used with 

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Subgrade Washington Asphalt Pavement Association

Material (USC given where appropriate), CBR, Elastic Modulus (psi). Diamond, –, 170,000,000. Steel, –, 30,000,000. Aluminum, –, 10,000,000. Wood, –, 1 – 2,000,000. Crushed Stone (GW, GP, GM), 20 – 100, 20,000 – 40,000. Sandy Soils (SW, SP, SM, SC), 5 – 40, 7,000 – 30,000. Silty Soils (ML, MH), 3 – 15, 5,00020,000.

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1 RESILIENT MODULUS: WHAT, WHY, AND HOW? Shane

Aug 31, 2007 knowledge of the resilient modulus of pavement layer materials allows determination of how the pavement system will .. of a given thickness (t) are characterized by an elastic modulus (E), Poisson's ratio (μ), and unit weight (γ). 40° assumed for crushed stone (typical range is 30 to 50°+). In this example 

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CHAPTER 4 MECHANICAL BEHAVIOR of ROAD ResearchGate

construction such as: ▫ clay. ▫ sand. ▫ crushed unbound (granular) stone for road base and railway ballastbed . elastic modulus E has to be determined through rules of the thumb. For example, for sands is valid: .. in fact is a mixture of mineral aggregates (filler, sand, gravel or crushed stone) that are glued together by a 

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Determination of AASHTO Layer Coefficients for Scholars' Mine

Jan 1, 1994 D. N. Richardson, "Determination of AASHTO Layer Coefficients for Granular Materials by Use of Resilient Modulus," Proceedings of the 37th Annual . Crushed stone. 4800. 6100. NOTE: at ≤ 60% saturation minus #200 ≤ 10%. SCE = standard compactive effort. MCE = modified compactive effort.

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Aggregates for Concrete Civil Engineering

Crushed stone is produced by crushing quarry rock, boul ders, cobbles, or largesize gravel. Crushed aircooled blastfurnace slag is also used as fine or coarse aggregate .. Fineness Modulus. The fineness modulus (FM) of either fine or coarse aggregate according to ASTM C 125 is calcu lated by adding the cumulative 

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HIGH QUALITY CEMENT TREATED CRUSHED STONES FOR

when the discussed relation ranged from 0,943 to 1,053 for the case of a well graded crushed stone treated with 5% of Portland cement. It is interesting to point out that in many countries, as in Brazil, it is common to admit that the elasticity modulus of CTCS reaches up to 7,000 MPa if the material is well prepared, compacted 

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Chapter 660

Nov 20, 2017 gravel, crushed stone and recycled material. They are classified in crushed aggregate, which provides greater stability than Type B. When . 150 lb/ft3. Poisson's ratio. 0.20. Elastic modulus. 2.00 ×106 psi. Thermal conductivity. 15 Btuin/hft2°F. Heat capacity. 0.28 Btu/lbm°F. Base erodibility index (1). 1.

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ESTIMATION OF APPAREN'r ELASTIC MODULUS OF SEPT

This modulus is the imagina~' nodulus under the assumption that the layer, consisting of both the concrete block and the sand bec'. Ls made of oy one combined material. First, the elastic moduli of the crushed stone subbase an' lubgrade in the concrete block pavements were estimated from deflection data on the 

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Evaluation of the Effect of LimeStabilized Subgrade on the

that the bearing capacity modulus of the lime stabilization was around 500 MPa. 25–35 cm of lime stabilization under the thickness of crushed stone layer in a pavement, built onto a lime stabilised local soil is reducible. .. E elastic modulus of half space material, MPa c Boussinesq plate factor (c=p/2 stiff and c=2,0 elas.

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resilient modulus of malaysian base and subbase pavement materials

concrete wearing and binder course, crushed aggregate or wetmix base layer and are the elastic modulus and Poisson's ratio (usually assumed from . Gravel, crushed stone. Crushed stone. Wellgrade crushed limestone. Inservice base & subbase materials. 16005000. 21005400. 18008000. 40009000. 8000.

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Typical Values of Young's Elastic Modulus and Poisson's Ratio for

Typical Values of Young's Elastic Modulus and Poisson's Ratio for Pavement Materials Young's Elastic Modulus Poisson's Ratio Material (E or Mr), psi (μ or ν) to granular Extensively cracked surfaces base course materials base course materials Crushed stone base 20,000 – 80,000 0.35 (clean, welldrained) Crushed 

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Estimation of Key PCC, Base, Subbase, and Pavement

Sep 26, 2012 However, compressive strength testing is more common than resilient/elastic modulus testing and flexural strength testing. Industry groups and (96). Where: E = Modulus of elasticity, psi. .. Figure 83 through figure 85 show equations for crushed stone (LTPP material code 303) as follows: k subscript 1 

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