Predicting pore volume, compressive strength, pore connectivity, and formation factor in cementitious pastes containing fly ash

Name: Predicting pore volume, compressive strength, pore connectivity, and formation factor in cementitious pastes containing fly ash
Author: Bharadwaj, K., Ghantous, R. M., Şahan, Feyza Nur, Isgor, O. B., Weiss, W. J.

İsim	Predicting pore volume, compressive strength, pore connectivity, and formation factor in cementitious pastes containing fly ash
Yazar	Bharadwaj, K., Ghantous, R. M., Şahan, Feyza Nur, Isgor, O. B., Weiss, W. J.
Basım Tarihi:	2021-09
Basım Yeri	- Elsevier
Konu	Cement paste, Fly ash, Compressive strength, Porosity, Formation factor, Thermodynamic modeling
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0958-9465
Kayıt Numarası	638f82fe-049e-47f6-b7af-f497b52737f5
Tarih	2021-09
Notlar	ARPA-E, Energy Power Research Institute (EPRI) ; National Science Foundation (NSF) ; John and Jean Loosely Chair ; Edwards Distinguished Chair at Oregon State
Örnek Metin	This paper describes the use of thermodynamic modeling to predict the reaction products and properties of cementitious pastes containing fly ash. A pore partitioning model is used to estimate the gel and capillary pore volumes. The paste performance is predicted in terms of its porosity, compressive strength, formation factor, and deicing salt damage susceptibility. A model is proposed to quantify the pore refinement that occurs when fly ash is used. Comparisons are made between the predicted properties by the model and properties of experimentally measured cementitious pastes with two fly ashes at different water-to-binding ratios and varying replacement levels. The error in predicting porosity is 5%; compressive strength is 14% for OPC systems and 26% for OPC + FA systems; and formation factor is between 1 and 20% for OPC systems, 13–26% for the OPC+20%FA systems, and 18–46% for the OPC+40%FA systems.
DOI	10.1016/j.cemconcomp.2021.104113
Cilt	122

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Predicting pore volume, compressive strength, pore connectivity, and formation factor in cementitious pastes containing fly ash

Yazar Bharadwaj, K., Ghantous, R. M., Şahan, Feyza Nur, Isgor, O. B., Weiss, W. J.

Basım Tarihi 2021-09

Basım Yeri - Elsevier

Konu Cement paste, Fly ash, Compressive strength, Porosity, Formation factor, Thermodynamic modeling

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0958-9465

Kayıt Numarası 638f82fe-049e-47f6-b7af-f497b52737f5

Tarih 2021-09

Notlar ARPA-E, Energy Power Research Institute (EPRI) ; National Science Foundation (NSF) ; John and Jean Loosely Chair ; Edwards Distinguished Chair at Oregon State

Örnek Metin This paper describes the use of thermodynamic modeling to predict the reaction products and properties of cementitious pastes containing fly ash. A pore partitioning model is used to estimate the gel and capillary pore volumes. The paste performance is predicted in terms of its porosity, compressive strength, formation factor, and deicing salt damage susceptibility. A model is proposed to quantify the pore refinement that occurs when fly ash is used. Comparisons are made between the predicted properties by the model and properties of experimentally measured cementitious pastes with two fly ashes at different water-to-binding ratios and varying replacement levels. The error in predicting porosity is 5%; compressive strength is 14% for OPC systems and 26% for OPC + FA systems; and formation factor is between 1 and 20% for OPC systems, 13–26% for the OPC+20%FA systems, and 18–46% for the OPC+40%FA systems.

DOI 10.1016/j.cemconcomp.2021.104113

Cilt 122