Effect of fiber types on creep behavior of concrete

for HYBRID FRP-CONCRETE COLUMN Contract No ... - FDOT

Investigating the behavior of CFFT beam-columns, with different levels of fiber Effect of confinement on creep of concrete core is not as significant as the effect of the under-reinforced specimens with thin FRP tubes and off-axis fibers.

Effect of fiber type and content on the flexural behavior of

Aug 01, 2019 · The effect of fiber types and fractions on the flexural behaviors of High Strength Concrete (HSC) beams with minimum reinforcement ratios were investigated experimentally. The main parameters in the conducted study were fiber type, the volume fraction of fiber and axial reinforcement ratio.

Effets of Steel Fiber Contents on Flexural Creep Behavior of

Test results showed that steel fiber content has a significant effect on the flexural creep behavior of high-strength concrete and long-term flexural load with 40% 

Experimental and Analytical Analysis of Creep of Steel Fibre

coefficient is 11.1% in the case of the SFRC type C30/37 FL. 1.5/1.5, while in the case of C30/37 effects on creep properties of concrete [8]. Mangat and Azari 

Creep Analysis of Axially Loaded Frp Concrete Columns

Creep Analysis of Axially Loaded Frp Concrete Columns Also, the effects of someimportant parameters including concrete compressive strength, tube wallthickness, number of fiber-wraps, column diameter, ultimate creepcoefficient, and type of FRP on the creep behavior of these columns havebeen investigated.

Creep Types - an overview | ScienceDirect Topics

4.12.5.1 Effects of Internal Creep Cavities on Fatigue Crack Growth. In the previous section, a creep Most models proposed for estimating the creep of concrete are of an empirical nature and are not necessarily based Two types of mechanisms are proposed to explain the creep behavior of

Fiber Reinforced Concrete - Types, Properties and Advantages

1. Steel Fiber Reinforced Concrete. A no of steel fiber types are available as reinforcement. Round steel fiber the commonly used type are produced by cutting round wire in to short length. The typical diameter lies in the range of 0.25 to 0.75mm. Steel fibers having a rectangular c/s are produced by silting the sheets about 0.25mm thick.

Behavior of fiber reinforced concrete members under

Relatively little experimental and analytical research has been undertaken on the effects of creep and shrinkage on the long‐term performance of FRC structural members after cracking. Failure to account for creep and shrinkage of the concrete and creep of the fibers can lead to a serious under‐estimation of the extent and severity of cracking, as well as long‐term curvatures and

Creep Effects in Plain and Fiber-Reinforced Polymer

This study considers the potential effects of creep on reinforced concrete (RC) beams strengthened with externally applied fiber reinforced polymer (FRP) strips. The significance of creep in the epoxy adhesive and whether such creep might allow the FRP strips to unload over time is assessed.

Creep Rupture Performance of Basalt Fiber-Reinforced

This did not have any effect on the test results The results of the creep rupture tests are creep rupture properties of BFRP bars. Different classes of structures have 

Effect of Confinement on Creep Behavior of EPS Geofoam

With different types of applications involving submergence and higher surcharge loads, creep deformations under confining pressures have been occurring. A series of creep tests were performed on different densities of EPS geofoam with and without confining pressures.

Creep behaviour of cracked steel and macro-synthetic fibre

Oct 12, 2015 · Abstract. The study of creep behaviour of fibre concrete in cracked conditions is nowadays one of the main subjects of interest; many research groups in the world are working on this matter and the development of test methods and the definition of parameters for its characterization becomes an urgent necessity.

Fiber Reinforced Concrete Research Papers

Interestingly, steel fibres had a significant effect on tensile creep and shrinkage, but little effect on compressive creep. Adding different types of fiber is one of the most common ways to enhance high strength Concrete exhibits brittle nature it is not strong enough to resist tension. Fibers are used to

3 State of the Art in Ceramic Fiber Performance | Ceramic Fibers and

Creep Behavior of Non-Oxide Fibers and Effects of Heat Treatment, Oxidation, and Aging. The literature on creep rupture and stress rupture (time-to-failure at a given stress) is meager. Researchers at the NASA Lewis Laboratory have done comparative stress rupture studies of various SiC-based

creep in concrete Topic

A Predicting Method for Long-Term Behavior of Reinforced Concrete Moment Frames. Publication: Structural Journal Date: 11/1/2019 Effects of Temperature and Stress on Creep Behavior of PP and Hybrid Fiber Reinforced Reactive Powder Concrete. Publication: IJCSM

Effect of Fibers on High-Temperature Mechanical Behavior and

This study was aimed to investigate the effect of steel, polypropylene (PP), and hybrid (steel + PP) fibers on high-temperature mechanical properties of reactive powder concrete (RPC). The mechanical properties considered are cubic compressive strength, axial or prismatic compressive strength, split-tensile strength, flexural strength, elastic modulus, peak strain, and stress-strain behavior

Investigating the Effect of Loading Rate on the Behavior

In line with determining the correct behavior of plastic concrete, investigating the effect of loading rate on the behavior of this concrete is considered as one of the factors affecting the stress-strain curve. In this research, in addition to studying fiber effects on the plastic concrete behavior, concrete samples were made with no fibers

A review on effect of different fiber types on fiber reinforced

2018. 6. 8. — Keywords: Concrete, Fiber Reinforced, Concrete behavior, Flexural and properties of concrete after addition of fiber and the effect of type, shape and Creep, Shrinkage and Cracking of Restrained Concrete at Early Age 

261-CCF : Creep behavior in Cracked Sections of Fiber

261-CCF : Creep behavior in Cracked Sections of Fiber Reinforced Concrete of the type of fiber, of fiber-concrete bond and of environmental conditions such as of FRC and has important consequences on structural durability and safety.

MECHANICAL AND SHRINKAGE BEHAVIOR OF FIBER REINFORCED SELF

with increased. The effect of different admixtures on shrinkage properties of self-compacted concrete was studied by Kar S. and Sanjay S. S [12]. They observed a positive effect for admixtures on the shrinkage of SCC. Ghezal, A. and Assaf, G. [13] studied the flexural creep behavior of self-compacted concrete by

PDF Analysis of effect of reinforcement on concrete creep behavior

Creep is one kind of time-dependent behaviors and effect of creep on concrete is complicated. Herein, the age-adjusted effective modulus method is adopted to analyze effect of reinforcement on concrete creep. The total strain of concrete when applied an initial stress at takes the following

Effect of fiber types on creep behavior of concrete | Request PDF

Elastic modulus of fiber is a significant factor influencing concrete creep, and fibers with elastic modulus higher than plain concrete can restrict creep, while the plastic fibers promote creep

Creep of Cracked Fiber Reinforced Concrete | ASU Digital

However with the advent of using fiber reinforced concrete, more and more applications where concrete is expected to carry tensile loads due to incorporation of fibers is gaining popularity. While the creep behavior of concrete in tension is important, the main case of the study is what happened when the concrete that is cr acked in service is subjected to sustained loads causing creep.

Strength, Modulus of Elasticity, Creep and Shrinkage of

2.4.3.2 Effects of coarse aggregate type on concrete shrinkage. 36 7.2.2 Effect of Aggregate Types on Creep Behavior of Concrete .

Effect of fiber types on creep behavior of concrete

Fibers with elastic modulus much higher than plain concrete can clearly restrict creep, while fibers with lower elastic modulus have the opposite effect. For example, 2% volumetric blending of steel fiber reduces specific creep by 25.1%, compared with plain concrete, while 0.9 kg/m 3 mass blending of PVA fibers increases it by 19.9%. The internal defects introduced by fiber addition, i.e., the fiber-concrete interfacial zone and non-uniform fiber distribution, weakens its creep resistance.