Flexural Strength and Deflection Evaluation for FRP Bar Reinforced HSC Beams with Different Types of Reinforcing Bar and Fiber

Objective: This study was designed to evaluate the biaxial flexural strength (BFS) of different types of unshaded and shaded monolithic zirconia. Material and Methods: 120 monolithic zirconia ceramic discs were fabricated. They were divided into twelve groups (n=10), Group 1; Bruxzir unshaded, Group 2; Bruxzir shaded A2, Group 3; Bruxzir anterior white, Group 4; Bruxzir anterior shade A2, Group 5; Prettau unshaded, Group 6; Prettau shaded with A2 coloring liquid, Group 7; Prettau anterior white, Group 8; Prettau anterior shaded with A2 coloring liquid, Group 9; Katana HT white, Group 10; Katana HT shade A2, Group 11; Katana ST white, Group 12; Katana ST shade A2. All discs were milled using a dental milling machine, and had final dimensions after sintering of 15 mm diameter and 1 mm thickness. BFS was tested using piston on three ball technique. Results: One-way ANOVA revealed significant differences among the 12 groups. Tukey post-hoc tests revealed no significant differences between the groups 3, 4, ,7 ,8 11, and 12. However, they all had BFS values that are significantly lower than all other groups. Group 2 showed statistically significant higher BFS values when compared to group 3,4, 7, 8, 11, and 12 while it showed statistically significant lower values when compared to groups 1, 5, 6, 9, and 10. Conclusion: Increase in the yttria content in zirconia led to a decrease in its BFS. Shading of zirconia did not have a significant effect on the final strength of zirconia. KeywordsDental ceramics; Dental esthetics; Flexural strength; Shaded zirconia.

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ANALYSIS OF PROPERTIES OF CONCRETE USING STEEL FIBERS AS FIBER REINFORCEMENT ADMIXTURE

International Journal of Research -GRANTHAALAYAH ◽

10.29121/granthaalayah.v5.i4rasm.2017.3370 ◽

2017 ◽

Vol 5 (4RASM) ◽

pp. 59-62

Author(s):

Vishal Gadgihalli ◽

Meena ◽

Sindu ◽

Raghavendra Prasad Dinakar

Keyword(s):

Reinforced Concrete ◽

Flexural Strength ◽

Steel Fibre ◽

Fiber Reinforcement ◽

Paper Analysis ◽

Fiber Reinforced Concrete ◽

Steel Fibers ◽

Fiber Reinforced ◽

Different Types ◽

Discrete Uniform

Fiber reinforced concrete is composite material consisting of mixtures of cement, mortar or concrete, discontinuous discrete uniform dispersed suitable fibers. Fiber reinforced concrete are of different types and properties. In this paper analysis of properties of concrete using steel fibre as fiber reinforcement admixture is studied and verified the strength of concrete to normal plane concrete with absence of admixtures. Using steel fibers as fiber reinforcement admixture increases bond strength by enhancing surface tension as steel is better in taking flexural strength this gives better results, hence we can use this steel fiber reinforcement to concrete where the compressive and flexural strength place a crucial role in construction and maintenance.

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Reinforcement of Aluminum Oxide Filler on the Flexural Strength of Different Types of Denture Base Resins: An In vitro Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2017/23893.9735 ◽

2017 ◽

Cited By ~ 1

Author(s):

Rohit I Dhole

Keyword(s):

Flexural Strength ◽

Aluminum Oxide ◽

In Vitro Study ◽

Vitro Study ◽

Denture Base ◽

Different Types

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Effect of Bleaching with 15% Carbamide Peroxide on Flexural Strength of Three Resin-Based Restorative Materials

Frontiers in Dentistry ◽

10.18502/fid.v17i27.4651 ◽

2020 ◽

Author(s):

Soodabeh Kimyai ◽

Yasaman Ghavami Lahij ◽

Mehdi Daneshpooy ◽

Elmira Jafari Navimipour ◽

Parnian Alizadeh Oskoee

Keyword(s):

Flexural Strength ◽

Hybrid Composite ◽

Composite Resin ◽

Restorative Material ◽

Carbamide Peroxide ◽

Bleaching Procedure ◽

Different Types ◽

Restorative Materials ◽

The Mean

Objectives: Considering the increasing use of vital bleaching procedures and the increased application of newly introduced resin-based materials for tooth restoration, this study was designed to evaluate the effect of 15% carbamide peroxide gel on the flexural strength of three resin-based restorative materials. Materials and Methods: Three different types of restorative materials namely Beautifil II giomer, Cention N, and Z250 micro-hybrid composite resin were evaluated in this in vitro, experimental study. Twenty-four bar-shaped specimens were prepared from each restorative material, totaling 72 specimens, and were randomly assigned to two subgroups with and without bleaching procedure (n=12). In the bleaching subgroups, 15% carbamide peroxide gel was applied on the specimen surface 8 h a day for 14 days. The flexural strength of the specimens was then measured. Two-way ANOVA was used to compare the flexural strength of the specimens. Results: There was a significant reduction in the flexural strength of materials following exposure to the bleaching agent (P<0.05). The flexural strength was significantly higher in the groups that did not undergo bleaching. However, the mean flexural strength of the restorative materials was not significantly different (P=0.12). Conclusion: The flexural strength of Beautifil II giomer, Cention N, and Z250 micro-hybrid composite resin could be compromised subsequent to bleaching with 15% carbamide peroxide gel. The three resin-based restorative materials exhibited similar flexural strength values irrespective of the use or no use of 15% carbamide peroxide gel.

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Evaluation of the flexural strength and serviceability of concrete beams reinforced with different types of GFRP bars

Engineering Structures ◽

10.1016/j.engstruct.2018.06.089 ◽

2018 ◽

Vol 173 ◽

pp. 606-619 ◽

Cited By ~ 24

Author(s):

Amr El-Nemr ◽

Ehab A. Ahmed ◽

Adel El-Safty ◽

Brahim Benmokrane

Keyword(s):

Flexural Strength ◽

Concrete Beams ◽

Gfrp Bars ◽

Different Types

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Physical resistance of the flexural joint in mortar Joints and clay blocks prisms

Journal of Physics Conference Series ◽

10.1088/1742-6596/2163/1/012006 ◽

2022 ◽

Vol 2163 (1) ◽

pp. 012006

Author(s):

N A fanador García ◽

G Guerrero Gómez ◽

C Nolasco Serna

Keyword(s):

Compressive Strength ◽

Flexural Strength ◽

Direct Relationship ◽

Automatic Machine ◽

Masonry Walls ◽

Flexural Test ◽

Different Types ◽

Physical Resistance ◽

Seismic Forces ◽

Made In

Abstract In buildings, each component contributes to resisting seismic forces and an important part in this activity are the masonry walls composed of: fired clay solid brick of 120 mm width and horizontally perforated clay blocks of 100 mm and 150 mm width. The main focus of this research is to determine the flexural strength of the horizontally perforated clay block-mortar joint, using different types of mortar as established in the “Reglamento Colombiano de Construcion Sismo Resistente” for four suppliers used in the municipality of Ocaña, Colombia. A semi-automatic machine that takes into account the physics in the application of loads was designed to carry out the flexural test in mortar-block joints. The average flexural strength in mortar-block joints was determined for three types of mortar corresponding to 0.219 MPa, 0.232 MPa, and 0.291 MPa respectively, for the municipality of Ocaña, Colombia. This research established a direct relationship between the compressive strength of the mortar and the flexural strength of the 100 mm wide horizontally perforated clay mortar-block joint. A physical comparison was made in terms of the compressive strength of the prism and the flexural strength of the clay mortar-block joint with that obtained by other researchers in India and found quite similar results.

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Review on Different Types of Geopolymer Concrete Fibres

Materials Science Forum ◽

10.4028/www.scientific.net/msf.857.388 ◽

2016 ◽

Vol 857 ◽

pp. 388-394 ◽

Cited By ~ 1

Author(s):

Meor Ahmad Faris ◽

Mohd Mustafa Al Bakri Abdullah ◽

Khairul Nizar Ismail ◽

Ratnasamy Muniandy ◽

Aeslina Abdul Kadir ◽

...

Keyword(s):

Mechanical Properties ◽

Compressive Strength ◽

Flexural Strength ◽

Ordinary Portland Cement ◽

Geopolymer Concrete ◽

Base Materials ◽

Different Types ◽

History Of ◽

Binder Material ◽

Materials Used

Ordinary Portland Cement (OPC) has been used over the than hundred years for material construction especially as a binder in production of concrete. However, there are a few disadvantages with the using of OPC that have been found especially in terms of properties and green house effect. This paper reviews the potential of an alternative binder material with no cement usage (cementless) called as “geopolymer”. The history of the development geopolymer will be described. Different types of base materials used in the formation of geopolymer will be explained in details. The influence of different types of fibres to the mechanical properties especially compressive strength and flexural strength were explained well.

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Mechanical Properties Evaluation of Render Mortars with Different Waterproof Additive Compositions

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.880.161 ◽

2021 ◽

Vol 880 ◽

pp. 161-167

Author(s):

Joaquin Humberto Aquino Rocha ◽

Fernando Palacios Galarza

Keyword(s):

Mechanical Properties ◽

Chemical Composition ◽

Flexural Strength ◽

Direct Effect ◽

Compression Strength ◽

Negative Impact ◽

Experimental Tests ◽

Strength Tests ◽

Different Types ◽

The Common

Waterproof additives and bonding agent mixtures are commonly employed in the setting up of render mortars. This practice often shows beneficial results, enhancing the properties of the common mortars. Yet, the use of these additives does not seem to have a direct effect on the mechanical properties of the mortars. This study thus aims to evaluate the influence of the use of waterproof and adhesion additives on the mechanical properties of render mortars. Based on their chemical composition, three different types of mortar admixtures were evaluated, using fourfold additive-mortar weight ratios: 0%, 1.5%, 3%, and 5%. Compressive and flexural strength tests were conducted after 28 days. The results showed a negative impact on the mechanical properties of the mortars. The lowest flexural and compression strength values reported are 1.52 and 4.57 (MPa), respectively. However, all compressive and flexural strength values lied within the limit range recommended by the “Mortars applied on walls and ceilings” construction code (i.e., ABNT NBR 13281). It is compulsory to continue the experimental tests to determine render mortars mechanical properties with higher waterproof additive-mortar weight ratios since higher ratios might produce mortars with non-allowed mechanical properties.

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