A Review on Bond and Anchorage of Confined High-strength Concrete

Sulaiman, Muhd Fauzy; Khun, Chau; Apandi, Nazirah Mohd; Chin, Sofrie Siew Yung; Awang, Abdullah Zawawi; Mansur, Shaiful Amri; Omar, Wahid

doi:10.1016/j.istruc.2017.04.004

Cited by 53 publications

(12 citation statements)

References 39 publications

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“…7a [101]. This mechanism is similar to that of steel bar reinforced concrete that the fabricated ribs on the surface of the bar distribute the applied stress and consequently increase the load capacity of the section [173,174]. All these mechanisms occur when there is a strong interfacial contact between fiber and matrix, e.g.…”

Section: Fiber-matrix Interactionmentioning

confidence: 76%

Fiber-reinforced geopolymer composites: A review

Ranjbar¹,

Zhang

2020

Cement and Concrete Composites

412

220

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There is a burgeoning interest in the development of geopolymers as sustainable construction materials and incombustible inorganic polymers. However, geopolymers show high quasi-brittle behavior. To overcome such weakness, hundreds of research have been focused on development, characterization, and implementation of fiber reinforced geopolymers for a wide range of applications. This paper discusses the rapidly developing state-of-the-art of fiber-reinforced geopolymer composites, focusing on material and geometrical properties of construction fibers, and underlying mechanisms on fiber-binder interaction at fresh and hardened states, mechanical properties, toughening mechanisms, thermal characteristics, and environmental durability. It is intended to build a strong conceptual and technical background for what is currently understood on fiber reinforced geopolymers by tying the subject together with knowns for other similar cementitious composites rather than a historical report of literature.

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Section: Fiber-matrix Interactionmentioning

confidence: 76%

Fiber-reinforced geopolymer composites: A review

Ranjbar¹,

Zhang

2020

Cement and Concrete Composites

412

220

View full text Add to dashboard Cite

show abstract

“…Also, as summarized in Table 1, most of the existing predicting equations for the maximum bond strength only considered concrete compressive strength. Previous review articles, in the field of the bond-slip phenomenon, also ignored the effect of concrete composition, and only concentrated on concrete compressive strength [32][33][34][35]. However, results reported by the literature show a different trend in which powder types and content, aggregate types and contents and also admixture can significantly change the bond properties [36].…”

Section: References Equationsmentioning

confidence: 99%

A critical review of the effect of concrete composition on rebar–concrete interface (RCI) bond strength: A case study of nanoparticles

2020

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Minimum concrete cover for rebar, rebar diameter, concrete compressive strength, embedded length of rebar, and lateral reinforcement by stirrups are the crucial factors considered in existing predicting equations and regulations for predicting rebar-concrete interface (RCI) bond strength. However, considerable effects of concrete composition on RCI are ignored in design codes and investigations. This paper intends to comprehensively highlight the critical aspects of this research gap. Additionally, a practical experimental approach is described in the present study to efficiently consider the effect of the new generations of concrete on RCI bond strength. Finally, nano-concrete is considered as a case study to show the importance of nanoparticle types on RCI bond strength. Overall results show that studying the microstructure of the transition zone at RCI is essential to accompany with the RCI bond strength for considering new generations of concrete in reinforced concrete structures. Additionally, the current study emphasizes that more investigations are necessary to be conducted by future works to fill the existing research gaps in RCI.

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“…Due to the development of construction technology, high-strength concrete (HSC) has become commercially available [29][30][31]. However, most studies on the material properties of CBA concrete have focused on the strength properties of conventional concrete with a compressive strength of less than 40 MPa.…”

Section: Introductionmentioning

confidence: 99%

Strength Properties of High‐Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates

Yang

Park

Lê

et al. 2020

Advances in Materials Science and Engineering

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Most previous studies on the strength properties of coal bottom ash (CBA) concrete have focused on concrete with a normal compressive strength, and thus, studies on the strength properties of high-strength concrete (HSC) containing CBA are limited. Therefore, the effects of replacing fine aggregates with CBA and variations in the curing age on the strength properties of HSC with a compressive strength of greater than 60 MPa were investigated in this study. The different CBA contents included 25, 50, 75, and 100%, and the different curing ages were 28 and 56 days. The mechanical properties of the HSC with CBA incorporated as fine aggregates were examined. The experimental results revealed that CBA could be partially or totally substituted for fine aggregates during HSC production. The test results also showed that the compressive, splitting tensile, and flexural strengths of the HSC containing CBA fine aggregates slightly decreased as the CBA content increased. Moreover, useful relationships between the compressive strength, splitting tensile strength, and flexural strength were suggested, and the predictions reasonably agreed with the measurements. Compared to those of the control specimen, the pulse velocities of the HSC specimens at various CBA contents decreased by less than 3%. In addition, equations for predicting the strength values of CBA concrete by using the ultrasonic pulse velocity were suggested.

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A Review on Bond and Anchorage of Confined High-strength Concrete

Cited by 53 publications

References 39 publications

Fiber-reinforced geopolymer composites: A review

Fiber-reinforced geopolymer composites: A review

A critical review of the effect of concrete composition on rebar–concrete interface (RCI) bond strength: A case study of nanoparticles

Strength Properties of High‐Strength Concrete Containing Coal Bottom Ash as a Replacement of Aggregates

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