Sulfate resistance of plain and blended cements exposed to wetting-drying and heating-cooling environments

Date

2007-08-01

Author

Sahmaran, M.
Erdem, T. K.
Yaman, İsmail Özgür

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

77
views

0
downloads

Exposure conditions significantly affect the resistance of cements to sulfate attack. This article investigates the sulfate resistance of ordinary portland cement (OPC), sulfate resistant portland cement (SRPC), and blended cements with different proportions of natural pozzolan and Class F fly ash when subjected to different exposure regimes. Plain and blended cement mortar specimens were stored under three different conditions: (i) continuous curing in lime-saturated water, (ii) continuous exposure to 5% Na2SO4 solution at room temperature, and (iii) cyclic exposure to 5% Na2SO4 solution at room temperature in which the cycles consisted of wetting-drying and heating-cooling. The sulfate resistance of cements was evaluated by measuring the reduction in compressive strength and length change of mortar specimens up to one year of exposure. This study revealed that the performance of blended cements under sodium sulfate solution at room temperature was better than that of SRPC with a 3.6%) C(3)A content when the length change was considered. However, for the structures exposed to sulfate attack and cycles of wetting-drying and heating-cooling, SRPC was found to perform better than blended cements when the compressive strength losses were considered.

Subject Keywords

General Materials Science, Civil and Structural Engineering, Building and Construction

URI

https://hdl.handle.net/11511/48371

Journal

CONSTRUCTION AND BUILDING MATERIALS

DOI

https://doi.org/10.1016/j.conbuildmat.2006.05.012

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Isotropic-Kinematic Cyclic Hardening Characteristics of Plate Steels Shakeri, Ashkan (Springer Science and Business Media LLC, 2017-03-01) Cyclic hardening of metals is considered as one of the most important features that affects extremely the hysteresis behavior of steel structures. One approach to study this characteristic is dividing it into two components, including isotropic hardening and kinematic hardening, and defining any of these components for any type of metals by calibrated data obtained from experiments. However, the lack of these calibrated data on metals, restricts this approach. Therefore, in this paper the isotropic and kine...
Nanoceria-Supported Ruthenium(0) Nanoparticles: Highly Active and Stable Catalysts for Hydrogen Evolution from Water Demir Arabacı, Elif; Önal, Ahmet Muhtar (American Chemical Society (ACS), 2018-02-21) Ruthenium(0) nanoparticles supported on nanoceria (Ru-0/CeO2) were prepared by reduction of Ru3+ ions on the surface of ceria using aqueous solution of NaBH4. The Ru-0/CeO2 samples were characterized by advanced analytical tools and employed as electrocatalysts on the glassy carbon electrode (GCE) in hydrogen evolution from water. The GCE, modified by Ru-0/CeO2 (1.86 wt % Ru), provides an incredible electrocatalytic activity with a high exchange current density of 0.67 mA.cm(-2), low overpotential of 47 mV ...
Seismic performance of chevron braced steel frames with and without viscous fluid dampers as a function of ground motion and damper characteristics Dicleli, Murat (Elsevier BV, 2007-08-01) This study is aimed at comparing the seismic performance of steel chevron braced frames (CBFs) with and without viscous fluid dampers (VFDs) as a function of the intensity and frequency characteristics of the ground motion and VFD parameters. For this purpose, comparative nonlinear time history (NLTH) analyses of single and multiple story CBFs with and without VFDs are conducted using ground motions with various frequency characteristics scaled to represent small, moderate and large intensity earthquakes. A...
Frame Element for Metallic Shear-Yielding Members under Cyclic Loading Sarıtaş, Afşin (American Society of Civil Engineers (ASCE), 2009-09-01) Modeling the energy dissipation capacity of shear-yielding members is important in the evaluation of the seismic response of earthquake resistant structural systems. This paper presents the model of a frame element for the hysteretic behavior of these members. The model is based on a three-field variational formulation with independent displacement, stress, and strain fields. The displacement field is based on the Timoshenko beam theory. The nonlinear response of the element is derived from the section inte...
Electrostatic Stabilization of Alumina Nanopowder Suspensions Çınar, Simge (American Scientific Publishers, 2014-03-01) Electrostatic stabilization has an impact on a broad range of applications. Previous research has shown that concentrated alumina nanopowder suspensions can be stabilized at specific ranges of ionic strength and pH. This study investigated the stability of alumina nanopowder suspensions in terms of viscosity measurements as a function of different electrolyte concentration and suspension pH. Using alumina nanopowders with an average particle size of about 50 nm, stable suspensions were obtained with 0.020 ≤...

Citation Formats

M. Sahmaran, T. K. Erdem, and İ. Ö. Yaman, “Sulfate resistance of plain and blended cements exposed to wetting-drying and heating-cooling environments,” CONSTRUCTION AND BUILDING MATERIALS, pp. 1771–1778, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48371.