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عنوان فارسی مقاله:
نظارت و مدل سازی سال های اولیه و رفتار سخت شدن بتن سازگار با محیط زیست از طریق اندازه گیری غیر مخرب مداوم: قسمت دوم. رفتار مکانیکی
عنوان انگلیسی مقاله:
Monitoring and modelling the early age and hardening behaviour of eco-concrete through continuous non-destructive measurements: Part II. Mechanical behaviour
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
In the first part of this study [1], continuous non-destructive testing (CNDT) such as isothermal calorimetry (IC) and ultrasonic pulse velocity (UPV) were used to monitor the heat flow, degree of hydration and apparent activation energies of various concrete compositions containing various amounts of limestone filler (LMF) and blast furnace slag (BFS). Indeed, LMF and BFS present interesting complementary effects and positive synergies in terms of fresh properties, mechanical behaviour and durability potential [2e10]. As regards the mechanical properties of these materials, the degree of hydration can be correlated to the setting time [11e13], strength evolution [14,15], or elastic properties [14e16]. Complementarily, UPV measurements can be correlated to the mechanical properties of concrete such as setting time [17e20], strength [21e24] and elastic properties [16,25,26]. These correlations are generally obtained through the measurement of compression waves (P-waves), and are mostly dependent on the water/cement ratio, nature and amount of the binder. In addition, these correlations are not satisfactory to represent the early age behaviour of concrete, as it will be discussed in this paper. In this second part, the compressive strength, tensile splitting strength, and elastic modulus of five concrete compositions are investigated through classical measurements and correlated with various CNDT methods. This paper aims at: - improving continuous non-destructive alternatives to the measurement of some of the main concrete mechanical properties - assessing and improving the current time-based, degree of hydration-based and UPV-based models of these concrete properties, - adapting these models to the very early age, hardening and hardened behaviour of concrete, - ensuring an applicability of these models to all tested concretes compositions, containing high amounts of LMF and/or BFS and variable w/c ratio.
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کلمات کلیدی:
PDF]Monitoring and modelling the early age and hardening behaviour of ... iranarze.ir/wp-content/uploads/2016/11/E2895.pdf hydration-based and UPV-based models of these concrete properties,. - adapting these models to the very early age, hardening and hardened behaviour of ... PRO 23: International RILEM Conference on Early Age Cracking in ... https://books.google.com/books?isbn=2912143292 Arnon Bentur, K. Kovler - 2002 - Cement composites Massive concrete elements are prone to early age thermal cracking due to the heat of ... The time dependent material behaviour is implemented by means of a ... be early age 31 Modelling of early age thermal cracking in hardening concrete, ... Monitoring and modelling the early age and hardening behaviour of ... difusion.ulb.ac.be/vufind/Record/ULB-DIPOT:oai...ulb.../Details Translate this page Jul 4, 2016 - Monitoring and modelling the early age and hardening behaviour of eco-concrete through continuous non-destructive measurements: Part II. 13th International Conference on Aluminum Alloys (ICAA 13): ... https://books.google.com/books?isbn=3319487612 Hasso Weiland, Anthony Rollett, William Cassada - Technology & Engineering Modelling. the. Effect. of. Room. Temperature. Storage. and. Deformation. on ... The present investigation deals with modelling of the age-hardening behaviour of ... modify the precipitation sequence due to the formation of early phases and the ... Modeling of Hydration, Compressive Strength, and Carbonation of ... www.mdpi.com/1996-1944/10/2/115/pdf by XY Wang - 2017 - Cited by 1 Jan 26, 2017 - [5] found that the early-age strength of PLC concrete is higher than that ...... S. Monitoring and modelling the early age and hardening behaviour ... Finite element modelling of hardening concrete - Springer Link link.springer.com/content/pdf/10.1617/s11527-011-9740-y.pdf by L Buffo-Lacarrière - 2011 - Cited by 16 - Related articles May 10, 2011 - structure'' and of a real reinforced massive structure at early age. 3 Modelling the behaviour of hardening concrete. In order to take account of ... Modelling of early age thermal cracking in hardening ... - RILEM www.rilem.org/gene/main.php?base=500218&id_publication=28&id_papier... by G De Schutter - 2003 - Cited by 5 - Related articles Pro023. Modelling of early age thermal cracking in hardening concrete, including creep and softening behavior. Title: Modelling of early age thermal cracking in ...
