Pull-out bond strength of titanium post cemented with novel fast-setting calcium silicate cement

Abstract Background To evaluate the effect of surface treatments on the push-out bond strength of Biodentine (BD) and white mineral trioxide aggregate (WMTA) to fiber posts. Methods Two brands of fiber posts were used: Reblida post; RP and RelyX post; RX. Each type of post (n = 80/group) was divided into four groups (n = 20/group) and exposed to surface treatment as follows: Control (no treatment), sandblasting (SB), hydrofluoric acid (HF), and TiF4 4 wt/v%. Each group was further subdivided into two subgroups (n = 10/subgroup) based on the type of CSCs used as follows: Subgroup A: BD and Subgroup B: WMTA. Push-out bond strength of BD and WMTA to glass fiber posts was assessed. Data were statistically analyzed using three-way ANOVA and Tukey’s test. A Weibull analysis was performed on the push-out bond strength data. Results BD showed higher bond strength than WMTA (P < 0.001). The push-out bond strength for posts treated with TiF4 4 wt/v% showed greater bond strength than the other surface treatments (P < 0.05). The BD/RP-TiF4 4 wt/v% showed the greater characteristic bond strength (σ0) (15.93) compared with the other groups. Surface treatments modified the surface topography of glass fiber posts. Conclusions The BD/RP-TiF4 4 wt/v% showed greater bond strength compared with the other groups. The TiF4 4 wt/v% surface treatment enhanced the bond strength of BD and WMTA to glass fiber posts than the other treatments. Surface treatment of fiber post with TiF4 4 wt/v% could be used to improve the bond strength with calcium silicate-based cements.

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Experimental resin-modified calcium-silicate cement containing N-(2-hydroxyethyl) acrylamide monomer for pulp tissue engineering

Materials Science and Engineering C ◽

10.1016/j.msec.2021.112105 ◽

2021 ◽

pp. 112105

Author(s):

Mariano S. Pedano ◽

Kumiko Yoshihara ◽

Xin Li ◽

Bernardo Camargo ◽

Kirsten Van Landuyt ◽

...

Keyword(s):

Tissue Engineering ◽

Calcium Silicate ◽

Pulp Tissue ◽

Calcium Silicate Cement ◽

Acrylamide Monomer

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Anti-inflammation performance of curcumin-loaded mesoporous calcium silicate cement

Journal of the Formosan Medical Association ◽

10.1016/j.jfma.2017.06.005 ◽

2017 ◽

Vol 116 (9) ◽

pp. 679-688 ◽

Cited By ~ 15

Author(s):

Yuan-Chien Chen ◽

Ming-You Shie ◽

Yuan-Haw Andrew Wu ◽

Kai-Xing Alvin Lee ◽

Li-Ju Wei ◽

...

Keyword(s):

Calcium Silicate ◽

Calcium Silicate Cement ◽

Anti Inflammation

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Experimental Research on Interfacial Bond Performance in Rock Anchor with High-Performance Grouting Medium

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.517.932 ◽

2012 ◽

Vol 517 ◽

pp. 932-938 ◽

Cited By ~ 2

Author(s):

Zhi Fang ◽

Hong Qiao Zhang

Keyword(s):

Rock Mass ◽

Bond Strength ◽

High Performance ◽

Interfacial Bond ◽

Interfacial Bond Strength ◽

Bond Performance ◽

Pull Out ◽

Steel Bar ◽

Reactive Powder ◽

Ground Anchor

There exist the problems such as low bond strength and bad durability in the ordinary grouting slurry of the ground anchor system at present. The high-performance grouting mediums RPC (Reactive Powder Concrete) and DSP (Densified Systems containing homogeneously arranged ultrafine Particles) would become the potential replacement of grouting medium in ground anchor resulting from their high compressive strength, durability and toughness. Based on a series of pull-out tests on ground anchors with different high-performance grouting medium of RPC and DSP , different bond length in the construction field, the bond performance on the interfaces between anchor bolt (deformed steel bar) and grouted medium as well as between grouted medium and rock mass was studied. The results indicate that the interfacial bond strength between RPC or DSP and deformed steel bolt ranges within 23-31Mpa, far greater than that (about 2-3MPa) between the ordinary cementitious grout and deformed steel bar. Even though the interfacial bond strength between the grouted medium and rock mass of limestone was not obtained in the test since the failure mode was pull-out of those steel bar rather than the interface shear failure between grouted medium and rock mass, the bond stress on the interface reached 6.2-8.38 MPa, also far greater than the bond strength (about 0.1-3MPa) between the ordinary cementitious slurry and rocks.

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Inflatable rock bolt bond strength versus rock mass rating (RMR): A comparative analysis of pull-out testing data from underground mines in Nevada

International Journal of Mining Science and Technology ◽

10.1016/j.ijmst.2015.11.004 ◽

2016 ◽

Vol 26 (1) ◽

pp. 19-22 ◽

Cited By ~ 1

Author(s):

Chase Barnard ◽

Raj R. Kallu ◽

Sean Warren ◽

Rahul Thareja

Keyword(s):

Rock Mass ◽

Comparative Analysis ◽

Bond Strength ◽

Rock Bolt ◽

Underground Mines ◽

Rock Mass Rating ◽

Pull Out ◽

Testing Data

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Size Effect on the Bond Behavior of Grouted Reinforcing Bars Embedded in Light-weight Concrete

10.24086/aces2020/paper.220 ◽

2021 ◽

Author(s):

Aamer Abbas ◽

◽

Yaqoob Yaqoob ◽

Ola Hussein ◽

Ibrahim Al-Ani ◽

...

Keyword(s):

Bond Strength ◽

Concrete Specimen ◽

Light Weight ◽

Reinforcing Bars ◽

Conventional Concrete ◽

Bond Behavior ◽

Pull Out ◽

Specimen Width ◽

Light Weight Concrete ◽

The Relationship

This study presents experimentally the bond behavior of light-weight concrete specimens with grouted reinforcing bars in comparison with conventional concrete specimens. A total of (9) pull-out specimens were studied; (3) specimens of conventional concrete, (3) specimens of light-weight concrete, and other (3) specimens of grouted light-weight concrete. Two variables are adopted in this investigation: specimen width and type of concrete (conventional concrete, light-weight concrete and grouted light-weight concrete). The study contains a discussion of the general behavior of the specimens in addition to the study of the ultimate bond capacity, maximum bond stresses and the relationship between the stress and the slip for different pull-out specimens. Results show that bond strength is highest for the largest specimen size (bond strength of grouted light-weight concrete specimen with specimen width 400 mm is higher than that of the specimen with (200 mm) width by about (13.13%)). Also, bond strength is highest for the grouted light-weight concrete specimen (bond strength of grouted light-weight concrete specimen is higher than conventional concrete specimen by (11.11%)).

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