scholarly journals Determination of critical stress in high strength concrete

2017 ◽  
Vol 3 ◽  
pp. 432-440
Author(s):  
A. D'Aveni ◽  
G. Fargione ◽  
E. Gugliemino ◽  
G. Risitano ◽  
A. Risitano
Keyword(s):  
High Strength Concrete ◽  
Critical Stress ◽  
High Strength ◽  
Strength Concrete

Bestimmung der Dauerhaftigkeit von Hochleistungsbeton mit Hilfe des CDF-Tests / Determination of the durability of high performance concrete by means of CDF-test

1999 ◽  
Vol 5 (1) ◽  
pp. 29-40
Author(s):  
R. Krumbach ◽  
U. Schmelter ◽  
K. Seyfarth
Keyword(s):  
Frost Resistance ◽  
High Strength Concrete ◽  
High Performance ◽  
High Performance Concrete ◽  
High Strength ◽  
Strength Concrete ◽  
Factors Influencing

Abstract Variable obsen>ations concerning frost resistance of high performance concrete have been made. The question arises which are the decisive factors influencing durability under the action of frost and de-icing salt. The proposed experiments are to be carried out in cooperation with F.A.- Finger - Institute of Bauhaus University Weimar. The aim of this study is to determine possible change of durability of high strength concrete, and to investigate the origin thereof. Measures to reduce the risk of reduced durability have to be found.

scholarly journals Determination of time zero in high strength concrete containing superabsorbent polymer and nano-silica

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
T. A. Cunha ◽  
P. Francinete ◽  
M. A. Manzano ◽  
L. A. Aidar ◽  
J. G. Borges ◽  
...  
Keyword(s):  
High Strength Concrete ◽  
High Strength ◽  
Superabsorbent Polymer ◽  
Nano Silica ◽  
Strength Concrete ◽  
Time Zero

scholarly journals Thermal Emission analysis to predict damage in specimens of High Strength Concrete

2020 ◽  
Vol 15 (55) ◽  
pp. 258-270
Author(s):  
Filippo Cucinotta ◽  
Antonino D'Aveni ◽  
Eugenio Guglielmino ◽  
Antonino Risitano ◽  
Giacomo Risitano ◽  
...  
Keyword(s):  
High Strength Concrete ◽  
Critical Stress ◽  
Thermal Emission ◽  
Load Condition ◽  
High Strength ◽  
Maximum Load ◽  
Element Analysis ◽  
Emission Analysis ◽  
Strength Concrete ◽  
Fatigue Rupture

In this paper thermal analysis was applied to determine the “Critical Stress” of concrete, different from its ultimate strength, able to produce the first damage in the structures under compressive loads. The Critical Stress can be thought as the stress able to produce the beginning of fatigue rupture within the material. Several specimens of high strength concrete were tested in order to define the incipient crack phenomena, also in internal part of the specimen not accessible by direct inspections, with the aid of infrared thermography. A finite element analysis completes the study and compares, for the same static loading conditions, the stress state with the experimental thermographic images. The final results show as the coupling of normal compressive test and the acquisition of the thermal images can be a useful aid to estimate a security stress value, indeed the Critical Stress, before the Ultimate Serviceability Limit (SLU) of the structure, defined as the maximum load condition before its failure.

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