Resilient modulus of unbound aggregate base courses from senegal west africa resilient modulus of compacted crushed stone aggregate bases research report ktc0527spr229011f kentucky transportation center college of engineering university of kentucky 2007 p 89
Jul 10 2013 this research was conducted to investigate the effect of matric suction on resilient modulus of unbound aggregate base courses the study characterized the water characteristic curves and resilient modulus versus matric suction relationships of aggregate base courses that were compacted at different water contents and between 98 and 103 of the modified proctor density
Nov 17 2011 kentucky transportation center resilient modulus of compacted crushed stone aggregate bases research report ktc0527spr 229011f stone crushed density in 209 measurement units stone crushed weighs 1 602 kilogram per cubic meter or 10001 pound per cubic foot
Soil resilient 3 is used to find the roadbed soil resilient modulus values for aggregate surfaced road 41 d elastic modulus of a g g r egate subbase layer e s b and a g g r egate base layer e b s in p s i for materials subjected to significant permanent deformation under loads elastic modulus is a fundamental property that
This research investigates the range of loadcarrying capability in terms of resilient modulus mr of crushed aggregate base course in wisconsin and how variables such as physical
Resilient modulus values of compacted granular lateritic soil sample have been compared with the resilient modulus values reported by samb et al 2013 who have worked with gravel lateritic soil
Resilient modulus of compacted crushed stone aggregate bases the objective of this study is to determine the resilient modulus of compacted crushed stone aggregate bases used in highway pavements in kentucky software and hardware for the resilient modulus
Resilient modulus tests 11 background in the area of pavement recycling fulldepth reclamation is a technique in which the existing pavement surface course along with a portion of the aggregate base are uniformly blended and compacted as a rehabilitated base course fulldepth reclamation
Resilient modulus estimation for granular materials c mellizo g dor jp bilodeau laval university qubec qubec canada abstract one of the important parameter in pavement design is the resilient modulus which describes the materials mechanical behaviour and
This paper presents the results of research conducted to investigate the effect of compaction moisture content on resil ient modulus mr of unbound aggregates three different aggregates grb basalt and bandia limestone was collect ed from different sites within senegal and then subjected to repeated load triaxial tests test results showed that the ef fect of compaction water content is
To predict the resilient modulus of the aggregates tested keywords resilient modulus summary resilient modulus quartzite basalt bandia limestone unbound aggregates 1 introduction achieving a proper modulus for an unbound base course is important for pavement performance 1 one com monly used parameter to define material stiffness is the
Elastic modulus is sometimes called youngs modulus after thomas young who published the concept back in 1807 an elastic modulus e can be determined for any solid material and represents a constant ratio of stress and strain a stiffness a material is elastic if it is able to return to its original shape or size immediately after being stretched or squeezed
Resilient modulus of aggregate bases is an important parameter in the mechanistic models the main goal of this study was to establish a simple and efficient means of predicting the resilient modulus of different types of kentucky crushed stone aggregate bases to accomplish this purpose resilient modulus tests were performed on several
The scientific world journal journal it yields both gravel and crushed stone modulus increase in this study triaxial tests were conducted extensively on unbound material mixtures such as gravel and number the in situ modulus from fwd testing is about 4 times higher than the laboratory resilient modulus of the soil compacted at omc
Dec 12 2014 resilient modulus of compacted crushed stone aggregate bases has recommended the use of resilient modulus for the compacted specimens were 6 in in diameter and 12 in in height crushed limestone base modulus of limestone gravel
Resilient modulus testing resilient modulus mr is a fundamental material property used to characterize unbound pavement materials it is a measure of material stiffness and provides a mean to analyze stiffness of materials under different conditions such as moisture density and stress level
Characterization of crushed bases in wyoming wydot sponsors also resilient modulus values of base aggregate depend on gradation rock type and moisture content the amount and nature of fines affect the moisture sensitivity of base materials will be prepared compacted and tested following the modified resilient
The main goal of this study was to establish a simple and efficient means of predicting the resilient modulus of different types of kentucky crushed stone aggregate bases to accomplish this purpose resilient modulus of different tests were performed on several different types of aggregate bases commonly used in kentucky
Evaluation of crushed concrete base strength luation of crushed concrete base strength mdot state study california bearing ratio and res
Commonly used procedure for laboratory testing of soil and aggregate materials is aashto t307 determining the resilient modulus of soil and aggregate materials 1 plot for a typical crushed granite base material is shown in figure 3 with the regression compaction resilient modulus specimens should be prepared at the target field
Hopkins et al conducted resilient modulus tests on multiple types of crushed stone aggregate bases used or of interest for future use in kentucky including dense graded aggregate dga crushed stone base cbs river gravel recycled concrete number 57 crushed stone and asphalt drainage blankets
Figure 513 schematic of stabilometer test setup for measuring rvalue yoder and witczak 1975 543 elastic resilient modulus pavement thickness design prior to the 1986 aashto design guide was based on experience soil classification and the plastic response of pavement materials to static load eg marshall stability for asphalt concrete and cbr for unbound materials
