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Ultra-High Performance Concrete Connections for Bridges: Superior Strength and Durability Field-cast ultra-high performance concrete (UHPC) connections were used to construct the Route 31 Bridge in Lyons, NY. As transportation agencies look for innovative
Ultra-high-performance concrete (UHPC) has progressively gained interest because of its favorable strength and durability properties. Considering applications o Title: Isothermal Strength Development Models of Ultra-High- Performance Concrete Author(s): Thomas E. Allard, Matthew W. Priddy, Isaac L. Howard, and Jay Shannon ...
This paper aims to investigate the influence of carbonation curing on mechanical and durability performance of pervious concrete. Experimental results show that appropriate carbonation curing can effectively improve compressive strength, especially at early ages.
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Ultrahigh performance concretes (UHPC) are promising materials for the next generation infrastructures due to their superior mechanical properties and durability. In this paper, comparison studies were conducted to show the potential of UHPC for sustainable constructions in chloride environments in view of service life.
Ultra-High Performance Concrete Connections for Bridges: Superior Strength and Durability. Field-cast ultra-high performance concrete (UHPC) connections were used to construct the Route 31 Bridge in Lyons, NY. As transportation agencies look for innovative solutions to facilitate the rapid construction of highway bridges, they are turning to ...
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Ultra-High Performance Concrete Connections for Bridges: Superior Strength and Durability. Field-cast ultra-high performance concrete (UHPC) connections were used to construct the Route 31 Bridge in Lyons, NY. As transportation agencies look for innovative solutions to facilitate the rapid construction of highway bridges, they are turning to ...
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2016-05-27 · Ultrahigh performance concrete for repairs, strengthening and new structures. Institutionen för Samhällsbyggnad och Naturresurser – SBN | 2 ... From where comes the strength and durability? Increased water dilutes the effect of the cement paste, …
1. INTRODUCTION. In concrete technology, there is a highly remarkable type of concrete named Ultra-High-Performance Concrete (UHPC). Just like Normal Strength Concrete (NSC), UHPC is composed of the same standard materials like cement, aggregate, mineral admixture, chemical admixture, and water.
Hence, the sustainability and durability of concrete have gained strategic importance. Ultrahigh-performance concrete (UHPC) has recently emerged as a very promising solution for these challenges, considering its exceptional compressive strength, tensile
shrinkage. Durability tests included alkali-silica reactivity, absorption, abrasion, chloride permeability, freeze-thaw resistance, and scaling. 17. Key Words ultra-high performance concrete, UHPC, fiber-reinforced concrete, response surface methodology, tensile properties, compressive strength, durability tests, modulus of elasticity, freeze thaw
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Abstract. Ultra-High Strength Concrete or better Ultra-High Performance Concrete (UHPC) is finding increasingly more applications in real construction projects. However, mostly the focus is on the outstanding mechanical properties of this special concrete. But strength is just one side of this multifunctional material.
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High-Strength Concrete. High-performance concrete is a term used to describe concrete with special properties not attributed to normal concrete. High-performance means that the concrete has one or more of the following properties: low shrinkage, low permeability, a high modulus of elasticity, or high strength.
High Strength Concrete Containing Different Types of Fibers” carried out on Ultra-high performance concrete (UHPC) is a special type of concrete with extraordinary potentials in terms of strength and durability performance.
Concrete is the most widely used material in building construction. Within the last few decades, research has been conducted on what is known as Ultra High Performance Concrete (UHPC). The term includes a broad range of materials such as defect-free, dense particle, engineered composite, multi-scale particle, and fiber-reinforced cementitious
CIP 33 - High Strength Concrete WHAT is High Strength Concrete It is a type of high performance concrete generally with a specified compressive strength of 8,000 psi (55 MPa) or greater. Today compressive strengths exceeding 20,000 psi (140 MPa) have been used in cast-in-place buildings. While the unit cost of high
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Sep 24, 2018 · When ultra-high performance concrete (UHPC) is fabricated as precast members such as in a UHPC segmental bridge, the joint design between the precast members can significantly affect the overall integrity and safety of the structure. Therefore, the structural behavior of the UHPC joint was experimentally investigated in this study with test variables including joint type, number and height of ...
In addition, the durability behavior of high-strength concrete (HSC) as the repair material was compared to UHPC. The results suggest that accelerated electrochemical corrosion induced onto a push-out sample did not reduce the mechanical performance of the
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Ultra-high-performance concrete (UHPC) is known for exhibiting excellent strength and a more durable matrix compared to conventional concrete. Typically UHPC consists of carefully selected constituent materials of: ultrafine graded sand, silica fume (or other ...
The results presented here indicate that nanoengineering concrete through reinforcement with graphene leads to concrete composites with ultrahigh strength and at the same time it widens the range of functionalities. These materials will be of particular interest for the construction industry to develop new competitive structural applications.
Ultrahigh performance fiber reinforced concrete (UHPFRC), as a new class of concrete, has attracted a lot of attention in recent years. This type of concrete with a compressive strength of more than 150 MPa, has high packing density, very low permeability, superior durability and very high abrasion and corrosion resistance.