modulus of elasticity of crushed limestone

Top informations

Elastic Modulus – Pavement Interactive

The modulus of elasticity for a material is basically the slope of its stress-strain plot within the elastic range (as shown in Figure 1) Figure 2 shows a stress versus strain curve for steel The initial straight-line portion of the curve is the elastic range for the steel...

VIOLETA BOKAN BOSILJKOV | University of Ljubljana ,

The paper deals with time-dependent increase of compressive strength, splitting tensile strength and modulus of elasticity as well as with compressive stress-strain curves of self-compacting concrete (SCC) made with crushed limestone aggregate and high content of limestone filler...

I 'I

The concrete mixes contain either basalt or crushed limestone aggregate with a maximum size of 19 mm (3/4 in) and an aggregate volume factor (ACI 2111-91) of 067 Mixes are tested at ages of 7, 28, 56, 90, and 180 days , 36 Modulus of Elasticity versus Compressive Strength 40...

(PDF) ESTIMATION OF THE COMPRESSIVE STRENGTH AND MODULUS ,

Same as the results of strength measurements, the elastic modulus of recycled concrete mixtures are 20 to 30 percent lower than that of crushed limestone mixtur The effects of mixing variables on the development of the modulus of elasticity were also found not much different from the result of ,...

"Resilient Modulus of Compacted Crushed Stone Aggregate ,

Nov 07, 2007· The compacted specimens were 6 inches in diameter and 12 inches in height Crushed limestone 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...

Laboratory and field investigations of recycled portland ,

Graduate Theses and Dissertations Iowa State University Capstones, Theses and Dissertations 2010 Laboratory and field investigations of recycled portland cement concrete subbase aggregates...

Insitu Measurement of Florida Limestone Modulus and ,

421 Elastic Modulus Testing A compressometer was used to measure deflection and calculate the modulus of elasticity for the FDOT limestone core samples tested in compression The SR20 field cores were tested with the LVDT's attached to the upper platen with measurements taken on the lower platen Both testing...

(PDF) ESTIMATION OF THE COMPRESSIVE STRENGTH AND MODULUS ,

Same as the results of strength measurements, the elastic modulus of recycled concrete mixtures are 20 to 30 percent lower than that of crushed limestone mixtur The effects of mixing variables on the development of the modulus of elasticity were also found not much different from the result of ,...

elastic modulus limits for crushed limestone

Modulus of elasticity of concrete is frequently expressed in terms of compressive strength While many a tendency to decrease from around 05 to around 03, as the maximum compressive strengths increase and the crushed limestone and calcined bauxite; and ,...

BACK CALCULATION DETERMINATION OF THE MODULUS ,

Keywords: Back calculation, pressuremeter, modulus elasticity, limestone INTRODUCTION Pressuremeter Test (PMT) is one of the geotechnical testing equipment in the field to obtain the modulus of elasticity parameters According to Gambin (1990), PMT was first put forward by Kogler in ,...

THE ~YSICAL PROPERTIES OF CONCRETE

WHAT ARE THE VALUES OF MODULUS OF ELASTICITY & POISSON’S RA,...

THE DEFORMATION MODULUS OF ROCK MASSES - ,

Modulus of elasticity of a rock mass ( Eem ): The ratio of stress (p) to corresponding strain during loading of a rock mass, including only the elastic behaviour (we), see Figure 1 4 3 2 1 0 5 05 1 1 52 2 MEASURED DEFORMATION (cm) A PP L I E D S T R E S S (M P a) w w e d p...

Elastic Modulus Limits For Crushed Limestone

A Contribution From Aci Committee 236 Material Crushed quartzite crushed granite limestone and marble while the high modulus of the crushed quartzite 110 gpa 16000000 psi did allow the production of concrete with an moe approaching 50 gpa 7250000 psi this also required the use of a very low wcm of 026 again such a mixture can be expected to exhibit brittle behavior...

Time Evolution of Properties of SCC Mixtures Produced ,

Jul 29, 2010· Abstract The paper deals with time-dependent increase of compressive strength, splitting tensile strength and modulus of elasticity as well as with compressive stress-strain curves of self-compacting concrete (SCC) made with crushed limestone aggregate and high content of limestone ,...

MODULUS OF ELASTICITY OF SELF COMPACTING ,

limestone powder content on the compressive strength and modulus of elasticity Keywords: self compacting concrete; limestone powder; compressive strength; modulus of elasticity 1 Introduction Self-compacting concrete (SCC) represents one of the most significant innovations in the concrete technology of the last years...

Some factors affecting the dynamic modulus of elasticity ,

Aug 01, 1995· 2 With standard 28-day cube strengths of about 75 to 115 MPa, E values of concrete ranged from about 47 to 55 kN/mm2 at the same age Increase in E from 28 days to about 6 months depended on mix composition but varied from about 05 to 35 percent, the largest increase being with limestone aggregate concret 3...

Design Manual Engineering Properties of Soil and Rock

(PMT), or Dilatometer (DMT) should be considered for evaluating the elastic modulus of the soil strata Typical elastic modulus values of predominately granular materials are shown in Table 3 Table 3: Typical elastic modulus values for granular s oil (modified after Sabatini, 2002) soil type range of equivalent elastic modulus ksf / (kPa)...

(PDF) A practical equation for elastic modulus of concrete

The use of dense aggregates such as basalt may result in a higher modulus of elasticity than limestone, which in turn results in a higher modulus than lightweight aggregat...

Coarse Aggregate Properties

The mineral makeup of the aggregate also influences the modulus of elasticity of concrete In a study by Aitcin and Mehta, they tested four different types of aggregates: diabase, limestone, gravel, and granite Their test results showed that the limestone and diabase aggregates gave the highest values for the elastic modulus...

Investigation of measured prestress losses compared with ,

develop recommended improvements for predicting modulus of elasticity Table 1 Properties of the three types of coarse aggregate Sieve analysis Sieve Passing, % Crushed limestone from Sulphur Springs, Ark River gravel from Greenwood, Miss Crushed limestone from Springdale, Ark 1 in 10000 10000 10000 ¾ in 9515 9393 9795 ½ in 5897 ....

Investigation of measured prestress losses compared with ,

develop recommended improvements for predicting modulus of elasticity Table 1 Properties of the three types of coarse aggregate Sieve analysis Sieve Passing, % Crushed limestone from Sulphur Springs, Ark River gravel from Greenwood, Miss Crushed limestone from Springdale, Ark 1 in 10000 10000 10000 ¾ in 9515 9393 9795 ½ in 5897 ....

WHAT ARE THE VALUES OF MODULUS OF ELASTICITY & ,

Feb 13, 2015· Poisson’s Ratio of Rock Poisson’s ratio measures the ratio of lateral strain to axial strain at linearly elastic region For most rocks, the value of Poisson’s ratio ranges in between 015 to 040 Typical values of modulus of elasticity of some common are given in the table below...

Alkali reactivity of crushed clay brick aggregate ,

Feb 15, 2014· Using crushed fired bricks Akhtaruzzaman and Hasnat prepared four different grades of concrete with strengths ranging from 138 to 345 MPa They reported favorable strengths as compared to normal weight concrete However, the modulus of elasticity ,...

Influence of limestone waste as partial replacement ,

The effects of limestone waste as fine aggregate on several fresh and hardened properties of the concretes were investigated The investigation included testing of compressive strength, indirect tensile strength, flexural strength, modulus of elasticity, and permeability It was found that limestone waste as fine aggregate enhanced the slump ....

PROCEDURE FOR MEASURING THE MODULUS OF FSEL ,

to record the linear-elastic response of each concre te sample With the observation cycle completed per Article 58, the two cycles required per this article are for data collection and calculation of modulus of elasticity However, these cycles should be performed in the same manner as the observation, or ,...

Correlation between Static and Dynamic Elastic Modulus of ,

1 INTRODUCTION The uniaxial compressive strength (UCS) and elastic properties of rocks such as Young’s modulus and Poisson’s ratio are widely used to estimate in situ stresses....

The effects of limestone aggregate on concrete properties

and porosity of ne limestone and sand were measured to nd a relation with the water entrapped in the pores of the surface of the rock and the drying shrinkage The results show the increases in the compressive and exural strengths and modulus of elasticity when the ne limestone proportion increases in the mixture...

USE OF RECYCLED CONCRETE POWDER IN SELF-COMPACTING ,

Jul 29, 2001· Concrete with recycled concrete powder showed lower elastic modulus and higher drying shrinkage than those with ground slag and ground limestone The recycled concrete powder is usable for self-compacting concrete without further processing, despite the possible increase in dosage of high-range water reducer for a given slump-flow and in drying ....

1116 – AGGREGATES FOR ON GRADE CONCRETE SECTION ,

Designate or determine the fineness modulus (grading factor) for each aggregate according to the procedure listed in Section 5105-Fineness Modulus of Aggregates (Gradation Factor) of Part V before delivery, or from the first 10 samples tested and accepted Provide aggregate that is within ±020 of the average fineness modulus...

Resilient Modulus and AASHTO Pavement Design

ltóTRANSPOR'TATION RESEARCI'I RT'CORD I 196 Resilient Modulus and AASHTO Pavement Design Ronrnr P Er,lrorr AND Sau I TsonuroN In the 1986 AA SHTO Guíde for the Design of Pavement Struc- /øres, subgrades and granular base layers are evaluated by the resilient modulus test Inclusion of the resilient modulus test rvas prompted by the need for a rational evaluation method...