[Request] paper from ACI journal

[REQUEST] paper from ACI journal - Printable Version

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paper from ACI journal - eyad - 03-06-2017

Dear All,

Can i get this paper from ACI journal

Title: Tensile Strength of Low, Medium, and High-Strength Concretes at Early Ages

Author(s): Arshad A. Khan, William D. Cook, and Denis Mitchell

Publication: Materials Journal

Volume: 93

Issue: 5

Appears on pages(s): 487-493

Keywords: air-dried curing; compressive strength; early age; high-strength concrete; sealed curing; temperature-matched curing; tensile strength.

Date: 9/1/1996

Abstract:
This paper presents an experimental study of early-age tensile strength (i.e., modulus of rupture) of low, medium, and high-strength concretes. In this study, low strength indicates a 28-day concrete compressive strength of 30 MPa (4300 psi), medium strength indicates a 28-day concrete compres-sive strength of 70 MPa (10,150 psi), and high strength indicates a 28-day concrete compressive strength of 100 MPa (14,500 psi). Tests on modulus of rupture specimens were carried out at frequent intervals during the first 3 days after casting to observe the influence of concrete strength. The influ ence of three different curing conditions-temperature-matched curing, sealed curing, and air-dried curing-were investigated. It was found that the gain in modulus of rupture of temperature-matched cured concrete beams is higher than that of sealed and air-dried beams. After an initial retardation period, the 70 and 100 MPa (10,150 and 14,500 psi) concretes showed a higher rate of flexural strength gain than the 30 MPa (4300 psi) concrete. It was observed that the current ACI Code expression for modu-lus of rupture overestimates the modulus of rupture for very early-age con-crete and underestimates the modulus of rupture for concrete strengths above 1.5 MPa (2175 psi). It was also found that the equation proposed by the ACI 363 Committee overestimates the modulus of rupture for all con-crete strengths and curing conditions investigated. Relationships are pro-posed to predict the modulus of rupture as a function of the concrete compressive strength. These relationships are applicable at very early ages up to an age of 91 days and account for a wide range of concrete compres-sive strengths and curing conditions.

Thanks

Ppaer : Splitting Tensile Strength and Compressive Strength Relationships at Early Ag - eyad - 03-06-2017

Dear All,

Can i get this paper from ACI journal

Title: Splitting Tensile Strength and Compressive Strength Relationships at Early Ages

Author(s): Francis A. Oluokun, Edwin G. Burdette, and J. Harold Deatherage

Publication: Materials Journal

Volume: 88

Issue: 2

Appears on pages(s): 115-121

Keywords: age-strength relation; compressive strength; concretes; splitting tensile strength; tests; Materials Research

Date: 3/1/1991

Abstract:
Reports on an investigation of the relationship between concrete compressive strength and its splitting tensile strength, especially at early ages, as well as on an examination of the applicability of some of the existing relation between these properties to concrete at early ages. Analyses of test results show that the compressive strength and splitting tensile strength are related, and an increase in one generally is similarly reflected in an increase in the other. The commonly accepted 0.5-power relationship between the compressive strength and the splitting tensile strength was found to be inaccurate at all ages. In fact, the tensile strength was found to be proportional to the 0.79 power of the cylinder compressive strength. An alternate relationship between the tensile stress and compressive strength is proposed.

Thanks

Paper : Prediction of Concrete Tensile Strength from its Compressive Strength - eyad - 03-06-2017

Dear ALL,

Can i get this paper from ACI journal please

Title: Prediction of Concrete Tensile Strength from its Compressive Strength: an Evaluation of Existing Relations for Normal Weight Concrete

Author(s): Francis Oluokun

Publication: Materials Journal

Volume: 88

Issue: 3

Appears on pages(s): 302-309

Keywords: compressive strength; concretes; evaluation; prediction; splitting tensile strength; Materials Research

Date: 5/1/1991

Abstract:
The 0.5 power relation adopted by ACI 318 for predicting the splitting tensile strength of concrete from its compressive strength has been under scrutiny for a long time. Since its adoption, many researchers have investigated its prediction accuracy, i.e., how well it correlates with or predicts test data. Research findings have consistently indicated that the 0.5 power relation adopted in ACI 318 does not agree particularly well with test results. Consequently, researchers have proposed several alternative relations. The research for this paper investigated the validity and accuracy of these alternate relations. Tensile strength predictions from these relations were compared with test results assembled from various sources. The splitting tensile strength was not proportional the 0.5 power of compressive strength. Although most of the alternate relations appear to be good, the assembled test data revealed that 0.69 is the most accurate power relation. Thus, a 0.69 power relation is proposed as an alternative to the ACI 318 relation.

Thanks

Paper : Pull-out Tests on Steel Embedments in Concrete - eyad - 03-06-2017

Dear All,

Can i please get this paper frm ACI journal

Title: Pull-out Tests on Steel Embedments in Concrete

Author(s): T. Balough, G. Kovacshazy and A. Frigey

Publication: Special Publication

Volume: 130

Issue:

Appears on pages(s): 221-234

Keywords: anchors (fasteners); concretes; embedment; loads (forces); pullout tests; Structural Research

Date: 1/1/1992

Abstract:
Sixty-six pullout tests were conducted on cast-in-place concrete anchors consisting of a threaded rod with a washer and two nuts, nonsymmetrical deformed anchors, and formed anchor heads. The purpose of the test program was to compare the behavior of these three anchors and to check the reliability of the ACI 349-85 standard calculation method. All the anchors were cast in 300 x 300 x 150 mm unreinforced concrete blocks. The test variables were concrete strength, embedment depth and edge distance. The test results showed that if the failure mode is a concrete shear cone failure, the values calculated using the ACI 349-85 standard calculation method, without a strength reduction factor, will provide a good prediction. If splitting or pullout failure occurs, the pullout force will be 25 percent lower. The effect of anchorage depth is overestimated by the ACI 349-85 standard model. A strength reduction factor = 0.50 is proposed to achieve a 95 percent probability that failure loads for steel embedment will exceed the ACI 349-85 theoretical value. Formed anchor heads are recommended as a standard.

Thanks

RE: paper from ACI journal - usman - 03-06-2017

eyad

the forum request for "Request for Civil Engineering Documents" is for calculation documents and such and not for Journal paper request...
[Image: 20941365884549696602.jpg]

for this we have a separate forum "Theses, Journals and Papers Request"

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next time your such request may be deleted with or without warning points
and
try to group same journal requests in one thread, there is no need to have threads for same journal papers

RE: paper from ACI journal - elestructural - 03-06-2017

Post#1
Title: Tensile Strength of Low, Medium, and High-Strength Concretes at Early Ages

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Post #2
Title: Splitting Tensile Strength and Compressive Strength Relationships at Early Ages

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Post #3
Title: Prediction of Concrete Tensile Strength from its Compressive Strength: an Evaluation of Existing Relations for Normal Weight Concrete

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RE: paper from ACI journal - oanm2000 - 03-06-2017

Dear elestructural,
Please first create the Post in the corresponding subsection, and then enter the corresponding Link in the Request. On the one hand it is more appropriate, given that it is presented with the corresponding order, and in addition you upload two Post, which undoubtedly improves your profile in the Forum.
Regards

RE: paper from ACI journal - nandicivil - 11-13-2019

I would like to request following technical papers from ACI Journal

1) Title: Natural Rubber Structural Bearings

Author(s): Peter B. Lindley, ACI Special Publication,Vol-70, pp. 353-378

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2) Title: Horizontal Movements and Bearing Layout in Curved Bridge Structures

Author(s): G.H. Beguin, ACI Special Publication,Vol-70, pp. 887-916

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3) Title: From Past Achievements to New Challenges for Joints and Bearings

Author(s): Fritz Leonhardt, ACI Special Publication,Vol-70, pp. 735-760

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4) Title: Aseismic Base Isolation: Its History and Prospects

Author(s): James M. Kelly, ACI Special Publication,Vol-70, pp. 549-586

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