performance of ultrahigh strength concrete containing

Performance of Ultra-High Strength Concrete Containing ...

Influence of fiber on workability and mechanical property of ultra-high strength concrete (UHSC) were studied. Results show that, when amount of steel fiber (Equivalent diameter is 0.2mm; nominal length is 13mm; Tensile strength is 2850MPa )substituting fine aggregate is 120kg/m3, UHSC could have the best mechanical properties of 139.0MPa compressive strength, 18.0MPa flexural strength, and 10 ...

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Performance evaluation of Ultrahigh performance fibre ...

Jan 30, 2020  Ultrahigh performance fibre reinforced concrete (UHPFRC) is a newfangled cement-based material unveiling a compressive strength of more than 150 MPa, higher tensile and flexural strengths, ductility as well as admirable durability.

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(PDF) Ultrahigh performance concrete-properties ...

Over the last twenty years, remarkable advances have taken place in the research and application of ultra-high performance concrete (UHPC), which exhibits outstanding mechanical properties and...

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Bond Performance between Ultrahigh-Performance Concrete ...

Bond Performance between Ultrahigh-Performance Concrete and Normal-Strength Concrete. Ultrahigh-performance concrete (UHPC) exhibits several properties that make it appropriate for the rehabilitation of concrete structures. In this investigation, the application is focused on bridge deck overlays, but the study is equally applicable to other ...

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(PDF) Ultra-high strength and performance concrete properties

The present study relates to an ultra-high strength concrete composition with and without steel fibres, having a 150 MPa and respectively, over 170 MPa strength. The ultra-high strength concrete...

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Comparative Investigations on Ultra-High Performance ...

Ultra-high performance concrete (UHPC) is one of the latest developing in con-crete technology. Depending on its composition and the treating temperature its compressive strength ranges between 150 N/mm² and up to 800 N/mm² 1. Some basic principles improving the properties of concrete were suggested in 1, e. g. the

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Experimental Investigation and Prediction of Compressive ...

on the prediction of the properties of UHPCs containing supplementarymaterials.Someresearchershaveconducted studies on modelling the properties of self-compacting concrete, normal concrete, and high-performance con-crete (HPC). Mousavi et al. predicted the compressive strength for HPC by using gene expression programming

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Performance evaluation of ultra-high performance concrete ...

Oct 05, 2020  Ultra-high performance concrete is a blended composite material mainly based on cement. Since a standard definition to describe the material is not available so far it is often defined with its distinctive properties being compressive, flexure and split-tensile strengths in the excess of 120 MPa, 15 MPa and 8Mpa along with enhanced durability, very low permeability, very high energy absorption ...

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Bond Performance between Ultrahigh-Performance Concrete ...

Aug 08, 2014  Ultrahigh-performance concrete (UHPC) exhibits several properties that make it appropriate for the rehabilitation of concrete structures. In this investigation, the application is focused on bridge deck overlays, but the study is equally applicable to other rehabilitation applications.

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Towards Ultrahigh Performance Concrete Produced with ...

The cement-based materials containing nano-Al 2 O 3 fibers, HDPE fibers, and only 1% of silica fume at 28-day age, provided properties approaching the benchmarks set for ultrahigh performance concrete. The compressive strength results of the developed composites provided the required strength benchmarks to be considered as ultrahigh performance ...

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Comparative Investigations on Ultra-High Performance ...

Ultra-high performance concrete (UHPC) is one of the latest developing in con-crete technology. Depending on its composition and the treating temperature its compressive strength ranges between 150 N/mm² and up to 800 N/mm² 1. Some basic principles improving the properties of concrete were suggested in 1, e. g. the

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Mechanical and fracture properties of ultra-high ...

Dec 20, 2020  The typical Ultra-high performance concrete (UHPC) is an innovative composite material composed of cement, silica fume (SF), quartz powder (QP), quartz sand (QS) and steel fiber, which has super high mechanical, ductility and durability properties (Arora et al., 2019a, Arora et al., 2019b; Chan and Chu, 2004; Yang et al., 2019).

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Reviewing Some Properties of Ultra High Performance Concrete

Oct 06, 2020  The ultra high performance concrete (UHPC) with deformed fibre reinforcement provided an increment of 32%, 70%, and 205% in tensile strength, flexural strength and strain capacity respectively, but only insignificant improvements were observed in terms of compressive strength and elastic modulus as compared to SF reinforcement [90,91].

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Effect of the heat curing on strength development of ultra ...

Effect of the heat curing on strength development of ultra-high performance fiber reinforced concrete (UHPFRC) containing dune sand and ground brick waste Safi B *, Aboutair A, Saidi M, Ghernouti Y and Oubraham C Research Unit: Materials, Processes and Environment (UR/MPE), University of Boumerdes, Algeria. * Corresponding Author: [email protected]

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Study on Interfacial Properties of Ultra-High Performance ...

The interfacial properties of reactive powder concretes (RPCs), other known as ultra-high performance concrete (UHPC), containing steel slag powder and ultra fine fly ash are studied in this paper. The microstrctural characterization of interfacial transition zones (ITZs), including the aggregate-cement paste interfacial zone and the steel fiber-paste interfacial zone, is investigated by SEM.

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Ultra High Strength Concrete Using Economical Materials

reinforcement for this concrete. A compressive strength of about 154MPa, indirect tensile strength of 12MPa, modulus of elasticity of 45GPa and flexural strength of 30MPa have been achieved for reinforced RPC contains 800 kg/m3 cement content and silica fume content 30% of cement weight. The test results showed adiquate improvements by increasing

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Mechanical Properties of Ultra High Performance Concrete

mechanical properties of Ultra High Performance Concrete, target compressive strength at the age of 28 days being more than 150 MPa. The methodology to develop such mix has been explained.

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Cylinder or Cube: Strength Testing of 80 to 200 MPa (11.6 ...

An experimental program was conducted to determine whether alternate specimen types can be reliably used to determine the compressive strength of an ultra-high-performance fiber-reinforced concrete (UHPFRC) in the strength range from 80 to200 MPa (11.6 to 29 ksi).

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(PDF) Effect of the heat curing on strength development of ...

This work aims to investigate the strength development of ultra-high performance fiber reinforced concrete (UHPFRC) containing ground dune sand (GDS) and ground brick waste (GWB) as a substitutions of cement and dune sand (DS) as an aggregate. The

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Effects of Shrinkage Reducing Agent and Expanded Cement on ...

Jul 22, 2021  Ultrahigh-performance concrete (UHPC) has characteristic features that include ultrahigh mechanical strength, high toughness, and excellent durability, in addition to the ability to adapt to various harsh environments [1–3]. UHPC generally uses a low water-cement ratio and contains various cementitious materials (cement, silica fume, slag, etc.).

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QA: Ultra-High Performance Concrete FHWA

A: Ultra-high performance concrete (UHPC) is a class of concrete that combines together many of the recent advances in concrete science to create a material with far superior properties. In the fresh state it is more fluid than regular concrete thus making it easier to place into the formwork. In the hardened state it is much stronger than ...

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Punching Shear Strength of Ultra-High Performance

a mighty generation of concrete whose compressive strength more than 150MPa, tensile strength greater than 5MPa. The benefits of UHPC is perceived as a revolutionary material that has high compressive strength, self-compacting, and ductile behavior.

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Experimental investigation and prediction of compressive ...

Experimental investigation and prediction of compressive strength of ultra-high performance concrete containing supplementary cementitious materials. Advances in Materials Science and Engineering 2017 , 4563164. 10.1155/2017/4563164

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Laboratory Evaluation of Ultrahigh-Performance Concrete ...

With its superior strength and durability, ultrahigh-performance concrete (UHPC) has been used as an alternative grout material to reduce shear key cracking and enhance load transfer. The objective of the present research was to evaluate the performance of UHPC in shear keys using direct shear, direct tension, and flexural tests.

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Reviewing Some Properties of Ultra High Performance Concrete

Oct 06, 2020  The ultra high performance concrete (UHPC) with deformed fibre reinforcement provided an increment of 32%, 70%, and 205% in tensile strength, flexural strength and strain capacity respectively, but only insignificant improvements were observed in terms of compressive strength and elastic modulus as compared to SF reinforcement [90,91].

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Rheological and Mechanical Properties of Ultra-High ...

Nov 11, 2019  materials Article Rheological and Mechanical Properties of Ultra-High-Performance Concrete Containing Fine Recycled Concrete Aggregates Lanzhen Yu 1,2,*, Lili Huang 1 and Hui Ding 2 1 Department of Architectural Engineering, Ningbo Polytechnic, Ningbo 315800, China; [email protected] 2 The Faculty of Mechanical Engineering and Mechanics, Ningbo University,

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EXPERIMENTAL STUDY ON SHEAR STRENGTH FOR ULTRA

estimation at High-strength concrete beams containing steel fiber. To know that concrete strength and steel fiber content how to effect on the beams. 2.1 Sharma (1986) V u =kf t (d/a) 0.25 (1) Shear span ratio and tensile strength effect on shear strength. It can use this proposal simply , when we only have concrete tensile strength data.

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Study on Interfacial Properties of Ultra-High Performance ...

The interfacial properties of reactive powder concretes (RPCs), other known as ultra-high performance concrete (UHPC), containing steel slag powder and ultra fine fly ash are studied in this paper. The microstrctural characterization of interfacial transition zones (ITZs), including the aggregate-cement paste interfacial zone and the steel fiber-paste interfacial zone, is investigated by SEM.

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Experimental Study on Basic Performances of Reinforced ...

Dec 12, 2019  In order to reduce the self-weight of conventional steel-concrete composite girders and to improve the crack-resisting behavior of normal strength concrete (NC) bridge decks for long-span cable-stayed bridges, an innovative steel–ultrahigh performance concrete (UHPC) composite girder

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Hydration, Shrinkages and Mechanical Properties of Ultra ...

The new requirements for strength and durability have led to the development of Ultra High Performance concrete (UHPC) with outstanding mechanical properties and durability. However, the application of this type of concrete is exceptional, because of the high dosage of cement and the incorporation of expensive materials, such as silica fume (SF) whose dosage can reach 30% by

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Effects of Shrinkage Reducing Agent and Expanded Cement on ...

Jul 22, 2021  Ultrahigh-performance concrete (UHPC) has characteristic features that include ultrahigh mechanical strength, high toughness, and excellent durability, in addition to the ability to adapt to various harsh environments [1–3]. UHPC generally uses a low water-cement ratio and contains various cementitious materials (cement, silica fume, slag, etc.).

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Compressive Behavior of Ultra-High-Performance Fiber ...

concrete is discussed and an equation for the ascending branch of the compressive stress-strain behavior is established. Keywords: compressive strength; fiber-reinforced concrete; modulus of elasticity. INTRODUCTION Ultra-high performance fiber-reinforced concrete (UHPFRC) is a new class of concrete that has been developed in recent years.

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(PDF) Effects of Steel Fiber Percentage and Aspect Ratios ...

Jul 21, 2021  Steel fibers and their aspect ratios are important parameters that have significant influence on the mechanical properties of ultrahigh-performance fiber-reinforced concrete (UHPFRC).

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PROPORTIONING AND PROPERTIES OF ULTRA-HIGH

performance between UHPC and precast concrete was investigated. The test results showed that third-point flexural bond test was an easy and reliable method of evaluating the bond performance between UHPC and precast concrete, compared to the slant shear and pull-off test methods.

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