Performance assessment and design of ultra-high performance concrete (UHPC) structures incorporating life-cycle cost and environmental impacts

2018 ◽  
Vol 167 ◽  
pp. 414-425 ◽  
Author(s):  
You Dong
Keyword(s):  
Life Cycle ◽  
Performance Assessment ◽  
Environmental Impacts ◽  
Life Cycle Cost ◽  
High Performance ◽  
High Performance Concrete ◽  
Ultra High Performance Concrete

scholarly journals Environmental Assessment of Ultra-High-Performance Concrete Using Carbon, Material, and Water Footprint

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 851 ◽  
Author(s):  
Husam Sameer ◽  
Viktoria Weber ◽  
Clemens Mostert ◽  
Stefan Bringezu ◽  
Ekkehard Fehling ◽  
...  
Keyword(s):  
Life Cycle ◽  
Environmental Impacts ◽  
Environmental Assessment ◽  
Carbon Material ◽  
High Performance ◽  
Water Footprint ◽  
High Performance Concrete ◽  
Construction Materials ◽  
Ultra High Performance Concrete ◽  
Conventional Concrete

There is a common understanding that the environmental impacts of construction materials should be significantly reduced. This article provides a comprehensive environmental assessment within Life Cycle Assessment (LCA) boundaries for Ultra-High-Performance Concrete (UHPC) in comparison with Conventional Concrete (CC), in terms of carbon, material, and water footprint. Environmental impacts are determined for the cradle-to-grave life cycle of the UHPC, considering precast and ready-mix concrete. The LCA shows that UHPC has higher environmental impacts per m3. When the functionality of UHPC is considered, at case study level, two design options of a bridge are tested, which use either totally CC (CC design) or CC enhanced with UHPC (UHPC design). The results show that the UHPC design could provide a reduction of 14%, 27%, and 43% of carbon, material, and water footprint, respectively.

Cost optimization of concrete bridge infrastructure

2003 ◽  
Vol 30 (5) ◽  
pp. 841-849 ◽  
Author(s):  
Mostafa A Hassanain ◽  
Robert E Loov
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
High Performance ◽  
High Performance Concrete ◽  
Cost Optimization ◽  
Concrete Bridges ◽  
Concrete Bridge ◽  
Analysis And Design ◽  
Prestressed Girders ◽  
Advanced Analysis

Recent surveys have indicated that between 30% and 40% of all bridges in North America are in various states of deterioration. Funding is limited owing to the existence of other deficient components of the transportation infrastructure. It is clear, therefore, that the return on the available funding needs to be maximized. This paper presents a review of publications on cost optimization of concrete bridge components and systems and then continues with a review of the state-of-the-art in life-cycle cost (LCC) analysis and design of concrete bridges. The main objective of the paper is to encourage bridge engineers to move towards the increased use of advanced analysis and design optimization methods.Key words: bridge, concrete, cost, high-performance concrete, infrastructure, life-cycle cost, optimization, prestressed girders, reliability.

Cable-Stayed Footbridge with UHPC Segmental Deck

2014 ◽  
Vol 629-630 ◽  
pp. 64-70 ◽  
Author(s):  
Milan Kalný ◽  
Vaclav Kvasnička ◽  
Jan Komanec ◽  
Jan L. Vítek ◽  
Robert Broz ◽  
...  
Keyword(s):  
Life Cycle Cost ◽  
High Performance ◽  
High Performance Concrete ◽  
High Strength ◽  
Light Weight ◽  
Ultra High Performance Concrete ◽  
Ongoing Research ◽  
The Czech Republic ◽  
The Public ◽  
Design And Implementation

Ongoing research and development of ultra-high performance concrete (UHPC) in the Czech Republic has been utilized in design and implementation of light-weight segmental deck of the cable-stayed footbridge over the Labe River in Celakovice with main span of 156 m. Detailing, design issues, construction method and efficiency of using UHPC on this large span lightweight bridge is described in the paper. The superstructure of the Celakovice footbridge was completed in the December 2013 and the bridge was opened for the public in April 2014. Main advantages of this project is not only low maintenance and reasonable life cycle cost but also favourable tender price which was achieved by the contractor Metrostav a.s. due to combination of high-strength modern materials steel and UHPC.

High Performance Concrete for Environmentally Efficient Building Structures

2016 ◽  
Vol 691 ◽  
pp. 272-284 ◽  
Author(s):  
Petr Hájek ◽  
Ctislav Fiala ◽  
Antonín Lupíšek
Keyword(s):  
Life Cycle ◽  
Environmental Impacts ◽  
High Performance ◽  
High Performance Concrete ◽  
Sustainable Construction ◽  
Mechanical Resistance ◽  
Concrete Technology ◽  
Conceptual Approach ◽  
Cement Production ◽  
Whole Life Cycle

Concrete is the most used man made material nowadays. The environmental impact associated with cement production is very significant due to the extent of concrete use. At the same moment cement production is associated with large energy consumption and high amount of greenhouse gas emissions. Development of concrete technology during last twenty years has lead to a significant quality shift of technical parameters and also of related environmental impacts. New types of optimized concrete mixes have significantly improved characteristics from the perspective of strength, mechanical resistance, durability and resistance to extreme loads. The use of alternative non-steel reinforcement from various types of fibres can increase reliability, durability and reduction of environmental impacts. Due to optimization of production technology, concrete is gradually becoming a building material appropriate and advantageous for sustainable construction of buildings. In this context increase of reliability and durability within whole life cycle is essential. New approaches in concrete technology like utilization of high performance and ultra high performance concretes, use of textile reinforcement, shape optimization and conceptual approach for integrated life-cycle assessment of concrete structures are presented in the paper. Some of principles are demonstrated on results of experimental research performed by author and his team at the Czech Technical University in Prague (CTU).

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