average modulus of elesticity of concrete coarse aggregates

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Effect of Substitution of Normal Weight Coarse Aggregate

with OPBC on some engineering properties of concrete For this purpose normal coarse aggregate was substituted with OPBC in a high strength concrete Fresh and hardened properties of concrete such as workability density compressive strength splitting tensile strength and modulus of elasticity were studied EXPERIMENTAL DETAILS...

Compressive Strength and Modulus of Elasticity of Concrete

The concrete density with waste tire rubber aggregate was decreased and so was the compressive strength The decrease of compressive strength is up to 6434 If the content of waste tire rubber aggregate is more than 40 then the resulting concrete cannot be categorized as structural concrete The modulus of elasticity decreased to 5977...

Evaluating the variability of the modulus of elasticity of

variability of the elasticity module of the concrete For this concretes were made with coarse aggregates from three different sources three different water/cement ratios and five different batches from each source of aggregate The compressive strength and static elastic modulus of the concretes were determined at 28 days...

What is the Modulus of Elasticity of Concrete 9 Important

03-10-2021 0183 32 Porosity density constituent moduli of elasticity mix proportion and transition zone properties all influence the modulus The elasticity of concrete is resolute by these characteristics Effect of Aggregat Concrete with dense aggregate has a high E value A higher quantity of coarse aggregate also results in a high E value...

Improved method to measure the strength and elastic

06-07-2019 0183 32 Coarse aggregates represent about 45 of the volume of the concrete They influence the structural performance of concrete with an impact in the elastic modulus and the compressive strengths of concretes higher than 50 MPa 1 2 3 4 In spite of the significance of the contribution of aggregates in concrete there is not yet a widely accepted standard method available to measure the...

Coarse Aggregate Properties

One property is the modulus of elasticity of the coarse aggregate A higher aggregate modulus will result in a concrete having a higher modulus As expected a lightweight aggregate will have a lower modulus than the mortar paste Conversely a strong aggregate produces a concrete that is stronger than the mortar paste Zhou 180...

Modulus of elasticity of recycled aggregate concrete

01-09-2015 0183 32 Various empirical equations have previously been suggested for estimating the modulus of elasticity of concrete from its compressive strength In addition a considerable number of practical and universal equations have been proposed for predicting the modulus of elasticity when the product includes coarse aggregates and various types of mineral additions However such equations are not...

Effect of Recycled Coarse Aggregate on Concrete Properties

Xiao et al 2002 has noted that the elastic modulus of recycled aggregate concrete is lower than that of the normal concrete It decreases as the recycled aggregate content increas Flexural Strength Based on the result of research it can be seen that the result...

average modulus of elesticity of concrete coarse aggregates

30-08-2016 0183 32 Modulus of Elasticity of Lightweight Concrete Containing In this paper the modulus of elasticity of lightweight concrete contains polyethylene terephthalate PET as fine coarse aggregate was estimated by using and fiber experimental data from different literatures The ratios of PET fiber range from 05 15 The modulus of elasticity increased by 8 for 05 PET fiber and decreased by...

Modulus of elasticity of concrete 3 Different standards

04-03-2019 0183 32 Modulus of Elasticity of Concrete It is defined as the ratio between the normal stress to normal strain below the proportional limit of a material called modulus of elasticity Ec Modulus of elasticity = unit stress/unit strain With the compressive strength test on the concrete specimen cylinder of 15 cm diameter and 30 cm length having a...

Characteristics of Different Type of Coarse Aggregate on

Kalra 13 studied the effect of coarse aggregate size on strength of high performance concrete HPC Three sizes of coarse aggregates 10mm 125mm and 16mm with two types of fine aggregate with fineness modulus 265 and 288 were used in the study It was concluded that concrete made with 10mm size coarse aggregate showed...

A Practical Equation for Elastic Modulus of Concrete

modulus of elasticity is strongly dependent on the nature of coarse aggregate14-16 Sometimes even different values of elastic modulus can be found in concrete having the same compressive strength but made with different types of aggregat Therefore it is frequently suggested6 to directly measure the elastic modulus of HSC rather than adopt...

EFFECT OF SEDIMENTARY AND METAMORPHIC AGGREGATE ON

of research carried out to investigate the effect of different types of coarse aggregate on the static elastic modulus the compressive strength the concrete density and the pulse velocity To do this concrete mixes were cast using three different water binder ratios w/c 036 032 and 028...

Effect of Coarse Aggregate Type on the Modulus of

02-04-2019 0183 32 In this study effect of coarse aggregate type on the modulus of elasticity of concrete was investigated Three different coarse aggregate samples were used namely granite sandstone and unwashed gravel Amongst other tests carried out the two principal tests performed include compressive strength test and modulus of elasticity testThe different coarse aggregates were used to make 18...

average modulus of elesticity of concrete coarse aggregates

25-07-2020 0183 32 modulus of elasticity of concrete was found to decrease at a decreasing rate with increasing coarse RCA content giving an average 16 reduction at full natural aggregate replacement Fote Focus on rotary-kiln machines for 40 years...

Aggregate Bond and Modulus of Elasticity of Concrete

01-01-1997 0183 32 Title Aggregate Bond and Modulus of Elasticity of Concrete Author s Adam Neville Publication Materials Journal Volume 94 Issue 1 Appears on pages s 71-74 Keywords modulus of elasticity concretes bonding Date 1/1/1997 Abstract The difference between the modulus of elasticity of aggregate and of hardened cement paste is shown to influence the bond stress between...

Aggregate Bond and Modulus of Elasticity of Concrete

The difference between the modulus of elasticity of aggregate and of hardened cement paste is shown to influence the bond stress between the two materials and therefore the shape of the stress-strain relation Better monolithic behavior of concrete which is beneficial for example when temperature cycling is expected is achieved when the difference between the moduli is reduced...

AN OVERVIEW OF THE ELASTIC MODULI OF NORMAL AND

aggregate co-efficient defined as the average value of the ratio of measured-to predicted static modulus of elasticity for different kind of coarse aggregate coefficients This particular formula will be compared with the results presented in this paper...

What Is Coarse Aggregate Properties Of Coarse Aggregate

22-06-2021 0183 32 The coarse aggregate has a major effect on concrete properties such as abrasion resistance hardness elastic modulus and another characteristic like durability strong and cheaper Other applications of coarse aggregate are to backfills fills drainage and filtration work...

Flexural strength and elastic modulus of ambient

1 1 Flexural strength and elastic modulus of ambient-cured blended low- 2 calcium fly ash geopolymer concrete 3 4 Pradip Natha Prabir Kumar Sarkerb 5 a Department of Civil Engineering Curtin University GPO Box U1987 Perth WA 6845 Australia 6 email pradipnath curtineduau 7 b Department of Civil Engineering Curtin University GPO Box U1987 Perth WA 6845 Australia...

Effect of coarse aggregate on elastic modulus and

A set of high performance concrete mixes of low water cement ratio and fixed mortar composition containing six different types of aggregates of constant volume fraction has been used to check moduli of elasticity at 7 28 and 91 days The results have shown that apart from the aggregates of very low and very high modulus concrete modulus at 28 days can be predicted quite well by well...

Influence of Aggregate Characteristics on Concrete Performance

aggregates with the range/average ratio for 28-d compressive strength being 032 for the OPC concretes and 037 for those based on the ternary blend binder With the exceptions of relating concrete modulus to aggregate modulus and concrete coefficient of thermal expansion CTE to...

Effect of Coarse Aggregate Type on the Modulus of

Concrete Elastic Modulus For Various Aggregate Types Construction Ess...

STUDY OF STATIC AND DYNAMIC MODULUS OF ELASTICITY OF

Static Modulus of Elasticity was determined by compressing concrete cylinders of diameter 150mm and length 300mm Stress strain curves were plotted for these mixes and slope of the line of best fit gives the static modulus of elasticity Dynamic Modulus of Elasticity was determined from the results of the Ultrasonic Pulse Velocity test The average...

What is Fineness Modulus of Coarse Aggregates and Its

Coarse aggregate means the aggregate which is retained on 475mm sieve when it is sieved through 475mm To find fineness modulus of coarse aggregate we need sieve sizes of 80mm 40mm 20mm 10mm 475mm 236mm 118mm 06mm 03mm and 015mm Fineness modulus is the number at which the average size of particle is known when we counted from...