Publication

Mechanical behaviour of Ultra High Performance Fibre Reinforced Concretes (UHPFRC) at early age, and under restraint

Eugen Brühwiler, Emmanuel Denarié, Aicha Kamen
2005
Conference Papers

Abstract

At early age, ultra high performance fibre reinforced concretes (UHPFRC)undergo significant volumes changes (thermal deformation and autogenous shrinkage)related to their composition. These deformations can be restrained by different elements respective to the material (rigid constituents) and the structure (formwork, underlying concrete and reinforcement) during construction. The consequences at material level are the development of tensile stresses that can initiate cracking and increase permeability. Therefore, their initial protective performance can be reduced. This paper presents the evolution of the temperature in various conditions, the degree of hydration, and the response at early age in free and restrained conditions determined by means of an original testing set-up developed at MCS-EPFL (autogenous shrinkage and stress generation) for a UHPFRC.

Official source

https://infoscience.epfl.ch/entities/publication/2582ebaa-b670-400b-b07e-a462f5c11f7e

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Eugen Brühwiler, Emmanuel Denarié, Aicha Kamen
2005
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/2582ebaa-b670-400b-b07e-a462f5c11f7e

About this result

Ontological neighbourhood

Chemical engineering

Materials science: Deformation of materials

Related concepts (32)

Ultimate tensile strength

Ultimate tensile strength (also called UTS, tensile strength, TS, ultimate strength or in notation) is the maximum stress that a material can withstand while being stretched or pulled before breaking. In brittle materials the ultimate tensile strength is close to the yield point, whereas in ductile materials the ultimate tensile strength can be higher. The ultimate tensile strength is usually found by performing a tensile test and recording the engineering stress versus strain.

Tensile testing

Tensile testing, also known as tension testing, is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength, breaking strength, maximum elongation and reduction in area. From these measurements the following properties can also be determined: Young's modulus, Poisson's ratio, yield strength, and strain-hardening characteristics.

Academic degree

An academic degree is a qualification awarded to a student upon successful completion of a course of study in higher education, usually at a college or university. These institutions often offer degrees at various levels, usually divided into undergraduate and postgraduate degrees. The most common undergraduate degree is the bachelor's degree, although some educational systems offer lower level undergraduate degrees such as associate and foundation degrees. Common postgraduate degrees include master's degrees and doctorates.

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