Impact Resistance and Strength Reliability of Novel Two-Stage Fibre-Reinforced Concrete

Murali, G.; Asrani, Neha P.; Vanaraj, Ramkumar; Avudaiappan, Siva; Haridharan, M. K.

doi:10.1007/s13369-018-3466-x

Cited by 57 publications

(47 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result was noticed in this research and several previous researches [14,32,34,62]. It is worth to mention that much higher ductility ratios reaching 5.0 were recorded for special types of concrete like engineered cementitious composites (ECC) [63] and layered fibrous concrete with very high fiber contents [2,6,21,22,23].…”

Section: Failure Patters and Impact Ductilitysupporting

confidence: 84%

“…However, this definition can be generalized to the repeated impact test as the ratio of number of impact blows at failure to that at cracking stage (ductility ratio). Several previous researches [2,6,21,22,23] used this definition to observe the ability of fibers to alter the behavior of concrete from brittle to more ductile under impact loading. In this study, it was found that the ductility ratio of the plain specimens was approximately 1, where all plain specimens failed at only 1 to 3 blows after cracking.…”

Section: Failure Patters and Impact Ductilitymentioning

confidence: 99%

“…Khalil et al [19] and Mastali and Davland [20] used the RBDWI test method to evaluate the impact resistance of Self-Compacting Concrete (SCC) containing crumb rubber. Most recently, several researches [2,6,21,22,23] were conducted to evaluate the impact resistance of layered fibrous concrete. In these researches, the course aggregate along with large amount of fibers were firstly mixed and placed in the molds, then after followed by the adding of a flowable cementitious grout that ingress inside the molds by means of gravity and fill voids between the aggregate and fibers.…”

Section: Introductionmentioning

confidence: 99%

“…Concrete samples were prepared in single or multi layers, with different fiber configurations and contents. Crimped and hooked-end steel fibers with different lengths were used in these mixtures with fiber volumetric contents up to 4, 5 or 6% [2,6,23] or even up to 10% in others [21]. The authors concluded that the proposed layered fibrous sections were of much superior impact resistance compared to normal concrete [2,6,23].…”

Section: Introductionmentioning

confidence: 99%

“…Crimped and hooked-end steel fibers with different lengths were used in these mixtures with fiber volumetric contents up to 4, 5 or 6% [2,6,23] or even up to 10% in others [21]. The authors concluded that the proposed layered fibrous sections were of much superior impact resistance compared to normal concrete [2,6,23]. They revealed that the impact resistance, in terms of number of blows, of some of these mixtures exceeded 30 times that of normal concrete and was also much superior to that of normal fibrous concrete [21].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Repeated drop-weight impact tests on self-compacting concrete reinforced with micro-steel fiber

Abid

Abdul-Hussein

Ayoob

et al. 2020

Heliyon

102

View full text Add to dashboard Cite

A B S T R A C TSteel fiber has become a proven material that can significantly alter the behavior of different types of concrete mixtures from brittle to more ductile ones. Rich literature is currently available on the mechanical properties of steel fiber-reinforced self-compacting concrete. However, the investigation of the impact resistance of this material to drop weight is still required to enrich the knowledge about its behavior under different loading conditions. An experimental work was conducted in this research to evaluate the performance of steel fiber-reinforced self-compacting concrete under repeated impact loading using the repeated blows test recommended by ACI 544-2R. The tests investigated the effect of drop weight and drop height in addition to fiber content. Straight microsteel fibers were incorporated in three volumetric contents of 0.5, 0.75 and 1.0% and were compared with a similar plain mixture. The test equipment was adjusted to conduct repeated impact loading from different dropheights and using different drop-weights. The adopted drop-heights were 450, 575 and 700 mm, while the adopted drop-weights were 4.5, 6.0 and 7.5 kg. The combination of the adopted drop-heights and weights composes four loading cases in addition to the standard loading case with a drop-weight and drop-height of 4.5 kg and 450 mm. The inclusion of micro steel fiber was found to significantly increase the impact resistance of selfcompacting concrete with percentage developments ranging from 150 to 860% compared to plain samples. The specimens tested under 4.5 kg and 450 mm drop weight and height exhibited the highest percentage improvement in impact resistance among the five loading cases. The results also showed that the impact ductility of fibrous specimens was up to 24% higher than that of plain specimens.

show abstract

Section: Failure Patters and Impact Ductilitysupporting

confidence: 84%

Section: Failure Patters and Impact Ductilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Repeated drop-weight impact tests on self-compacting concrete reinforced with micro-steel fiber

Abid

Abdul-Hussein

Ayoob

et al. 2020

Heliyon

102

View full text Add to dashboard Cite

show abstract

Experimental study, modeling, and reliability analysis of impact resistance of micro steel fiber‐reinforced concrete modified with nano silica

Haruna

Zhu

Shao

2022

Structural Concrete

View full text Add to dashboard Cite

This paper presents the experimental, statistical modeling, and reliability analysis of impact resistance of micro steel fiber reinforced concrete (FRC) incorporated with nano silica (NS) using a drop-weight impact test. U-shaped concrete specimens were developed for the experimental work. The result showed that the combined effect of micro steel fiber (SF) and NS led to significant improvement of impact resistance of concrete mixtures, and lower ductility ratios were obtained for specimens with high SF and NS content. A common failure pattern was observed for all the concrete specimens. The response surface methodology models developed to predict the impact resistance of FRC-NS mixtures showed a high degree of correlation. Due to the variation in the dropweight impact test' result, the Weibull distribution (WD) function was employed for advance analysis, and the result revealed that the probabilistic distribution of first crack strength (N 1 ) and failure strength (N 2 ) follows the two-parameter WD.

show abstract

3D-FE Analysis of RC Tunnel with GFRP Shielding Under Internal Blast Loading

Kaushik

Patnaik

Rajput

et al. 2021

Lecture Notes in Civil Engineering

View full text Add to dashboard Cite

Impact Resistance and Strength Reliability of Novel Two-Stage Fibre-Reinforced Concrete

Cited by 57 publications

References 47 publications

Repeated drop-weight impact tests on self-compacting concrete reinforced with micro-steel fiber

Repeated drop-weight impact tests on self-compacting concrete reinforced with micro-steel fiber

Experimental study, modeling, and reliability analysis of impact resistance of micro steel fiber‐reinforced concrete modified with nano silica

3D-FE Analysis of RC Tunnel with GFRP Shielding Under Internal Blast Loading

Contact Info

Product

Resources

About