Dynamic strength of polymer modified and fiber-reinforced concretes

Bhargava, Jitendra; Rehnström, Å.

doi:10.1016/0008-8846(77)90032-1

Cited by 22 publications

(5 citation statements)

References 4 publications

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“…Some experimental results on DIF of concrete reported in the literature (Bhargava and Rehnstrom, 1977;Huang et al, 2005;Jiao et al, 2006;Lai and Sun, 2008;Li and Xu, 2009;Lok and Zhao, 2004;Lok et al, 2003;Malvern et al, 1986;Ross et al, 1996;Ross et al, 1995;Tai, 2009;Wang et al, 2008;Wu et al, 2005;Yan et al, 2001Yan et al, , 2002Yan et al, , 2008Zhang et al, 2007b) are summarised in Figure 1. The data are grouped to show the effect of fibres on the DIF of concrete subjected to high-strain-rate loadings.…”

Section: Introductionmentioning

confidence: 92%

Effect of high strain rate loading on compressive behaviour of fibre-reinforced high-strength concrete

Wang

Zhang

Quek

2011

Magazine of Concrete Research

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This paper presents a laboratory experimental study on the effect of high strain rate loading on compressive behaviour of plain and fibre-reinforced high-strength concrete with similar strength of 80-90 MPa. Steel fibres, polyethylene fibres and a combination of these were used in the fibre-reinforced high-strength concrete. SplitHopkinson pressure bar equipment and a hydraulic test machine were used to determine the concrete behaviour at strain rates from about 10 to 300/s and from about 10 24 to 10 21 /s, respectively. Dynamic increase factor and fracture patterns of the specimens, concrete matrix and fibres are discussed. The CEB-FIP equation is found to be applicable to the high-strength concrete, but overestimated the dynamic increase factor of fibre-reinforced high-strength concrete at strain rates beyond a transition strain rate of 30/s. A modified dynamic increase factor equation is proposed for plain high-strength concrete and fibre-reinforced high-strength concrete.

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Section: Introductionmentioning

confidence: 92%

Effect of high strain rate loading on compressive behaviour of fibre-reinforced high-strength concrete

Wang

Zhang

Quek

2011

Magazine of Concrete Research

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“…Since 1980s, overseas started to adopt the large-size SHPB device to conducted the impact compression and tensile test to the concrete. For example, Pullen and Perters from British, Ross and Tesdesco from American and Malvern et al once to adopted 51mm, 76.2mm and 100mm diameter SHPB device to test concrete and mortar [1][2]. In domestic Hu Shisheng et al adopted the improved straight taper variable cross-section type 74mm diameter Hopkinson pressure bar and carried out the concrete impact compression experiment [3]; Yan ShaoHua and others adopted variable cross-section SHPB device to conduct the concrete impact compression experiment for 72mm and 62 mm diameter of the two high strength concrete specimen and so on [4][5].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Dynamic Mechanical Properties of HPP Hybrid Fibers Reinforced Lightweight Aggregate Concrete

Wang

Guo

Shao

et al. 2014

AMR

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The impact compression tests on HPP hybrid fibers reinforced lightweight aggregate concrete were performed with 100mm SHPB equipment. The dynamic mechanical properties and variation of HPP hybrid fibers reinforced lightweight aggregate concrete under different strain rates and loading methods were systematically studied. HPP hybrid fibers reinforced lightweight aggregate concrete is of the property of strain rate effects under impact loads as ordinary concrete. The dynamic strength and peak strain of it increased with the increase of strain rate. During multiple-impact compression tests, the specimens were able to bear multiple impacts before damage after cracks were produced. It is clear that HPP hybrid fibers reinforced lightweight aggregate concrete is an outstanding material for protective engineering to resist repetitive impacts.

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“…Polypropylene fibers are low-density synthetic fibers with a thin diameter and low module of elasticity and have specific characteristics such as high strength, flexibility and durability, abundant resources and low cost, so they can be widely used in concrete products [7]. In the studies conducted in this regard, an increase of over 15% in the strength of uniaxial tensile impact loads [8] and over 50% in flexural impact loads [9] has been reported for polypropylene fibers-containing concretes. Polypropylene fibers are also highly effective in improving impact loads after the first crack until complete rupture [10].…”

Section: Introductionmentioning

confidence: 99%

In Situ Evaluation of the Mechanical Properties of Pozzolanic Concrete Containing Fibers

2020

jcr

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Several non-destructive and semi-destructive tests have been developed so far to evaluate the strength of concrete in the structure. Different parameters can be involved in selecting the appropriate method for estimating in situ concrete strength, such as cost, accuracy, time of testing. In this paper, in situ friction-transfer test was used to evaluate the rupture module and compressive strength of fiber-containing Pozzolanic concretes. For this purpose, 8 different mix designs with cubic compressive strength in the range of 15 to 50 MPa were used. Then, 0.3% glass fiber and polypropylene were added to each mix design separately. The relationship between the results of the friction-transfer test readings and standard laboratory tests was presented as calibration curves. The results showed a high correlation between the experimental results and the "friction-transfer" test, which allows this test to be used as an in situ method with high confidence to determine the mechanical properties of the concrete in the structure. The effect of fiber type and cement type on "friction-transfer" test results and standard laboratory tests were also discussed.

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Dynamic strength of polymer modified and fiber-reinforced concretes

Cited by 22 publications

References 4 publications

Effect of high strain rate loading on compressive behaviour of fibre-reinforced high-strength concrete

Effect of high strain rate loading on compressive behaviour of fibre-reinforced high-strength concrete

Experimental Study on Dynamic Mechanical Properties of HPP Hybrid Fibers Reinforced Lightweight Aggregate Concrete

In Situ Evaluation of the Mechanical Properties of Pozzolanic Concrete Containing Fibers

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