Composite Properties and Micromechanical Analysis of Highly Ductile Cement Composite Incorporating Limestone Powder

Hyun, Jung Hwan; Lee, Bang Yeon; Kim, Seong Su

doi:10.3390/app8020151

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…An electric universal testing machine with a maximum capacity of 20 kN was used, and the test was carried out under displacement control at a loading rate of 0.1 mm/ min. Load was measured using a load cell attached to the machine; for displacement measurement, jigs were installed on the upper and bottom sides of the specimen, where its cross section (30 mm × 13 mm) remained constant, and two linear variable differential transducers (LVDTs) were also attached there [24,25]. e deformation of specimens occurring within the gauge length of 80 mm was measured by LVDTs, and the resulting two displacement measurements were averaged to calculate the average strain of each specimen.…”

Section: Test Methodsmentioning

confidence: 99%

Effects of Aging on the Tensile Properties of Polyethylene Fiber-Reinforced Alkali-Activated Slag-Based Composite

Choi

Park

Kang

et al. 2019

Advances in Materials Science and Engineering

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Information on the effect of age on the tensile behavior of fiber-reinforced alkali-activated slag-based composite is fairly limited. Therefore, the purpose of this study is to experimentally investigate the effect of age on the compressive strength and tensile properties of the fiber-reinforced alkali-activated slag-based composite. A binder including slag and alkali activators, chemical admixtures, and a reinforcing fiber were selected, and the mixture proportion was determined to make a fiber-reinforced alkali-activated slag-based composite with high ductility. Compressive strength and tensile strength tests were performed, and values were measured at 3, 5, 7, 14, 28, and 90 days. Test results showed that the compressive strength increased as the age increased. Although the first-cracking strength increased like the compressive strength, the increases of tensile strength and tensile strain capacity were not significant compared with those of compressive strength and first-cracking strength.

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Section: Test Methodsmentioning

confidence: 99%

Effects of Aging on the Tensile Properties of Polyethylene Fiber-Reinforced Alkali-Activated Slag-Based Composite

Choi

Park

Kang

et al. 2019

Advances in Materials Science and Engineering

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“…The stress performance index first involves cracking strength and is defined as the ratio of the tensile strength of the composite to the initial cracking strength. Both the energy and stress performance indices must be larger than the unity to ensure multiple cracking behavior [23]. Fibers have a very important role in the crack bridging action of ECC composites, and fiber rupture depends on fiber strength and their chemical bonding within the concrete matrix [24].…”

Section: Introductionmentioning

confidence: 99%

Temperature Impact on Engineered Cementitious Composite Containing Basalt Fibers

et al. 2021

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Engineered cementitious composite (ECC) is a new generation of fiber-reinforced concrete with high ductility and exceptional crack control capabilities. However, ECC can suffer a substantial reduction in ductility when exposed to elevated temperatures resulting in a loss of crack-bridging ability. In this study, the effect of adding basalt fiber (BF), which is an inorganic fiber with high-temperature resistance for the production of ECC, was studied. Moreover, the change in the mechanical properties of ECC, including compressive, tensile, and flexural strength, was experimentally investigated under elevated temperatures up to 400 °C. The results showed that the addition of BF to reinforced ECC improved the tensile and flexural strength of concrete effectively, but compressive strength marginally decreased. A significant decrease was observed in the range from 300 to 400 °C, while it increased smoothly when heated up to 300 °C. The compressive and flexural strength diminished after a slight strain gained when heated up to 100 °C. This work paves the way for future investigations focusing on the development of high-temperature resistance ECC.

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“…For analysis of fiber reinforced concrete stiffness modeling through numerical homogenization was used [7]. During the cracking phase of specimen approximately half of the internal energy dissipated in cracking the matrix and remaining energy dissipated in fiber pull out [8][9][10]. The stresses at interfacial zone of fiber matrix interface were calculated for various volume fractions for longitudinal loading [11,12].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Fiber Reinforced Concrete Strength Properties by Micromechanics Method

Kadam

Karjinni²,

Jarali

2019

Civ Eng J

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High strength steel fiber reinforced concrete (HSSFRC) was prepared with the help of steel fiber. 0.5%, 1.0%, and 1.5% steel fiber by volume of concrete specimen was used in concrete for present investigation. Compressive strength test and flexural strength test were conducted on cubical and prismatic specimens respectively.The main objective of the research work is to validate the experimental out comes by a numerical technique such as micromechanics approach. A high strength steel fiber reinforced concrete whose compressive strength is greater than 60 N/mm2 was prepared and tested on concrete testing machine. Flexural strength test was conducted on universal testing machine to evaluate the bending properties of concrete. It was observed that with increase in the percentage of steel fiber volume the compressive strength and flexural strength also increases. However the workability of concrete declines and concrete is no longer in working condition. Micromechanics technique helps to predict the strength properties which save time required for casting and such technique was found to be beneficial.

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Composite Properties and Micromechanical Analysis of Highly Ductile Cement Composite Incorporating Limestone Powder

Cited by 7 publications

References 24 publications

Effects of Aging on the Tensile Properties of Polyethylene Fiber-Reinforced Alkali-Activated Slag-Based Composite

Effects of Aging on the Tensile Properties of Polyethylene Fiber-Reinforced Alkali-Activated Slag-Based Composite

Temperature Impact on Engineered Cementitious Composite Containing Basalt Fibers

Prediction of Fiber Reinforced Concrete Strength Properties by Micromechanics Method

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