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Thermodynamic Study of Cement Paste under Sulfate Attack: A Review [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2021
Sulfate attack reduces the service life of concrete structures, which isn't possible to repair simply. Implementation of many factors influencing the sulfate resistance, sample scaling, and results in the least possible time is some problems of ...
Sama Karkhaneh   +2 more
doaj   +1 more source

Study on mechanical properties and air-void structure characteristics of hybrid fiber fly ash concrete under sulfate attack

open access: yesMaterials Research Express, 2021
Sulfate attack is one of the common durability problems of concrete. The concrete structure in saline soil is particularly susceptible to sulfate attack. The aim of this paper was to investigate the effect of fly ash on the mechanical properties and pore
Jingshuang Zhang   +2 more
doaj   +1 more source

Thermodynamic modeling of sulfate attack on carbonated Portland cement blended with blast furnace slag

open access: yesDevelopments in the Built Environment, 2023
Sulfate attack on concrete induces volumetric changes resulting in a severe damage to the structure. The structural deterioration can be coupled with carbonation in practice, while such coupled effect is relatively unknown.
Melaku N. Seifu   +4 more
doaj   +1 more source

Experimental Study on the Strength and Deformation Characteristics of Concrete under True Triaxial Compression after Sulfate Attack

open access: yesAdvances in Civil Engineering, 2021
To explore the mechanical properties of concrete under true triaxial static compressive load after sulfate attack, uniaxial static compression test and true triaxial static compression test at four stress ratios were carried out on concrete specimens ...
Wei Xia, Erlei Bai, Jinyu Xu, Gaojie Liu
doaj   +1 more source

Effect of Dry–Wet Cycle Periods on Properties of Concrete under Sulfate Attack

open access: yesApplied Sciences, 2021
Dry–wet cycle conditions have significant effects on the corrosion of concrete under sulfate attack. However, previous studies have only applied them as a method for accelerating sulfate attack and not systematically studied them as an object.
Jin-Jun Guo   +3 more
doaj   +1 more source

Effects of Sodium Sulfate Attack on Concrete Incorporated with Drying-Wetting Cycles

open access: yesAdvances in Civil Engineering, 2021
It has been widely observed that sulfate attack can damage the durability of concrete. This research investigated the mass loss and damage degree of concrete under sodium sulfate attack incorporated with drying-wetting cycles.
Fang Liu   +3 more
doaj   +1 more source

Research on Sulfate Attack Mechanism of Cement Concrete Based on Chemical Thermodynamics

open access: yesAdvances in Materials Science and Engineering, 2020
Based on principles of chemical thermodynamics, the relationship between temperature and the Gibbs free energy of erosion products generated during the sulfate attack on cement concrete was deduced. The orientation of chemical reactions of sulfate attack
Peng Liu   +4 more
doaj   +1 more source

Microstructure Change of Nanosilica–Cement Composites Partially Exposed to Sulfate Attack

open access: yesInternational Journal of Concrete Structures and Materials, 2020
The deterioration of cement composites containing nanosilica partially exposed to sulfate attack was studied, and the microstructure change of the composites was analysed by a scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and X-
Qian Huang   +4 more
doaj   +1 more source

Reliability assessment of concrete under external sulfate attack

open access: yesCase Studies in Construction Materials, 2021
The variability in characteristics of concrete material, such as pore size and chemical composition, has significant impact on the long-term performance of concrete structures under sulfate attack.
Dandan Sun   +4 more
doaj   +1 more source

Time-dependent mechanical behavior of tunnel linings under sulfate attack

open access: yesYantu gongcheng xuebao, 2021
The chemical-mechanical coupling effect of tunnel lining concrete under sulfate attack will lead to the degradation of its mechanical properties, and the degradation law is affected by many factors.
HE Wen-zheng 1, 2, XU Lin-sheng 1
doaj   +1 more source

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