Mоlimо vаs kоristitе оvај idеntifikаtоr zа citirаnjе ili оvај link dо оvе stаvkе:
https://open.uns.ac.rs/handle/123456789/11505
Nаziv: | (NH4)2SO4 corrosion of cement in concrete analyzed by an improved mathematical model | Аutоri: | Miletić, Saša Đurić, Mirjana Mihajlov, Anđelka Bašić, Đorđe Janaćković, Đorđe |
Ključnе rеči: | sulfate;corrosion;Portland cement;coal fly ash;mathematical model | Dаtum izdаvаnjа: | 24-авг-2009 | Izdаvаč: | Serbian Chemical Society | Čаsоpis: | Journal of the Serbian Chemical Society | Sažetak: | This paper gives a critical analysis of the equation that predicts and estimates the progress of degradation for various building materials, recently proposed by Matsufuji et al.1 After the analysis, the paper suggests an improveed mathematical model, particularly for the modeling of sulfate corrosion. Experiments were performed with two samples of Portland cement and two samples of Portland cement with 30 % coal ash. The samples were immersed into a 10 % (NH4)2SO4 solution and the concentration of SO42- in the solution and the material was measured. As a parameter that quantifies cement degradation, the quantity of bonded SO42- was suggested. According to the obtained data, mathematical models for the description of sulfate corrosion were defined for all the examined samples. The models were applied for the analysis of the behavior of ash and non-ash containing samples. They allowed a better explanation of degradation which occurred during the investigated time period and even further they showed that ash systems were significantly more resistant to sulfate corrosion. 2009 Copyright (CC) SCS. | URI: | https://open.uns.ac.rs/handle/123456789/11505 | ISSN: | 03525139 | DOI: | 10.2298/JSC0903331M |
Nаlаzi sе u kоlеkciјаmа: | TF Publikacije/Publications |
Prikаzаti cеlоkupаn zаpis stаvki
SCOPUSTM
Nаvоđеnjа
2
prоvеrеnо 10.05.2024.
Prеglеd/i stаnicа
16
Prоtеklа nеdеljа
9
9
Prоtеkli mеsеc
0
0
prоvеrеnо 10.05.2024.
Google ScholarTM
Prоvеritе
Аlt mеtrikа
Stаvkе nа DSpace-u su zаštićеnе аutоrskim prаvimа, sа svim prаvimа zаdržаnim, оsim аkо nije drugačije naznačeno.