MODULUS OF ELASTICITY OF TWO-STAGE CONCRETE

Stress-Strain Relations and Modulus of Elasticity of Two-Stage Concrete

Journal of Materials in Civil Engineering ◽

10.1061/(asce)0899-1561(2003)15:4(329) ◽

2003 ◽

Vol 15 (4) ◽

pp. 329-334 ◽

Cited By ~ 26

Author(s):

Hakim S. Abdelgader ◽

Jarosław Górski

Keyword(s):

Modulus Of Elasticity ◽

Stress Strain ◽

Two Stage

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Compressive and Tensile Strength of Two-Stage Concrete

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.893.585 ◽

2014 ◽

Vol 893 ◽

pp. 585-592

Author(s):

Abdullah F. Saud ◽

Hakim S. Abdelgader ◽

Ali S. El-Baden

Keyword(s):

Tensile Strength ◽

Compressive Strength ◽

Modulus Of Elasticity ◽

Compression Modulus ◽

Splitting Tensile Strength ◽

Published Data ◽

Two Stage ◽

Conventional Concrete ◽

Crushed Granite ◽

Strength Behavior

An experimental investigation was conducted to evaluate the compressive, tensile strength and modulus of elasticity of two-stage concrete (TSC) at different water-to-cement ratios. The primary objectives were to measure the elastic modulus, compressive strength and splitting tensile strength of TSC and to determine if there is a quantifiable relationship between compressive and tensile strength. Behavior of TSC in compression has been well documented, but there are little published data on its behavior in tension and modulus of elasticity. This paper presents the experimental results of preplaced, crushed granite aggregate concreted with five different mortar mixture proportions. A total of 48 concrete cylinders were tested in unconfined compression modulus of elasticity and splitting tension at 28 and 90 days. It was found that the modulus of elasticity and splitting tensile strength of two-stage concrete is equivalent or higher than that of conventional concrete at the same compressive strength. Splitting tensile strength can be conservatively estimated using the ACI equation for conventional concrete.

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Influence of grout proportions on modulus of elasticity of two-stage concrete

Magazine of Concrete Research ◽

10.1680/macr.2002.54.4.251 ◽

2002 ◽

Vol 54 (4) ◽

pp. 251-255 ◽

Cited By ~ 8

Author(s):

H. S. Abdelgader ◽

J. Górski

Keyword(s):

Modulus Of Elasticity ◽

Two Stage

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Two-Stage Concrete as a Sustainable Production

MATEC Web of Conferences ◽

10.1051/matecconf/201814902009 ◽

2018 ◽

Vol 149 ◽

pp. 02009 ◽

Cited By ~ 3

Author(s):

H. S. Abdelgader ◽

A S. El-Baden ◽

H.A. Abdurrahman ◽

A.S.M. Abdul Awal

Keyword(s):

Tensile Strength ◽

Modulus Of Elasticity ◽

Point Contact ◽

American Concrete Institute ◽

Splitting Tensile Strength ◽

Experimental Investigations ◽

Two Stage ◽

Conventional Concrete ◽

Ordinary Concrete ◽

Skeletal Mass

Two-stage concrete (TSC) is a sustainable concrete which is produced by forcing a flowable cement grout mixture through the voids of a skeletal mass made of compacted preplaced aggregates. From the technical and economic aspects, TSC is particularly useful for construction and repair of concrete structures especially foundations, underwater construction, nuclear reactors, concrete dams, heritage structures and in constructions with closely spaced reinforcement. TSC differs from ordinary concrete in that it contains a higher proportion of stone aggregate and the aggregate stays in point-to-point contact as placed. Thus, the mechanical characteristics of the TSC in failure conditions are distinctly different from ordinary concrete. This paper presents the results of experimental investigations conducted to evaluate the compressive, tensile strength and modulus of elasticity of TSC using grouts with different water-to-cement ratios and admixture contents. It was found that the modulus of elasticity and splitting tensile strength of TSC are equivalent or higher than that of conventional concrete at the same compressive strength. In this method of construction, the splitting tensile strength can be conservatively estimated using the American concrete institute (ACI) equation for conventional concrete.

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Two-stage self-seeding method for preparation of single crystals of poly(phenylene sulfide)

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100153816 ◽

1989 ◽

Vol 47 ◽

pp. 368-369

Author(s):

Sengshiu Chung ◽

Peggy Cebe

Keyword(s):

Single Crystals ◽

High Performance ◽

Dilute Solution ◽

Two Stage ◽

Annealing Behavior ◽

High Performance Polymers ◽

Seeding Method ◽

Phenylene Sulfide

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.

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