Results 21 to 30 of about 43,072 (255)

Experimental study on sulfate resistance of shotcrete with different liquid accelerators

open access: yesCase Studies in Construction Materials, 2022
The shotcrete used as the initial lining of tunnel was easily damaged by sulfate attack in groundwater environment. The purpose of this study was mainly to explore the deterioration and mechanism of shotcrete mixed with different liquid accelerators ...
Renhe Yang   +7 more
doaj   +1 more source

Experimental study on dynamic mechanical properties of concrete under sulfate attack

open access: yesFrontiers in Materials
Research on the dynamic mechanical properties of concrete under sulfate attack is the basis for the reasonable design and performance evaluation of anti-explosion and impact resistance in concrete structures under the erosion environment.
Ruixue Liu   +4 more
doaj   +1 more source

Prediction of concrete compressive strength due to long term sulfate attack using neural network

open access: yesAlexandria Engineering Journal, 2014
This work was divided into two phases. Phase one included the validation of neural network to predict mortar and concrete properties due to sulfate attack. These properties were expansion, weight loss, and compressive strength loss.
Ahmed M. Diab   +3 more
doaj   +1 more source

Current knowledge of external sulfate attack [PDF]

open access: yesAdvances in Cement Research, 2015
This paper offers an update of the current understanding of sulfate attack, with emphasis on the sulfates present in an external water source percolating through, and potentially reacting with, the cement matrix. The paper considers the explanations put forward to explain sulfate attack, both from a chemical and microstructural perspective. Similarly,
Whittaker, M, Black, L
openaire   +2 more sources

Evaluation of external sulfate attack (Na2SO4 and MgSO4): Portland cement mortars containing fillers

open access: yesRevista IBRACON de Estruturas e Materiais, 2020
Sulfate attack is a term used to describe a series of chemical reactions between sulfate ions and hydrated compounds of the hardened cement paste. The present study aims to evaluate the physical (linear expansion, flexural and compressive strength) and ...
D. J. DE SOUZA   +2 more
doaj   +1 more source

Assessment of Mechanical Properties and Damage of High Performance Concrete Subjected to Magnesium Sulfate Environment

open access: yesAdvances in Materials Science and Engineering, 2017
Sulfate attack is one of the most important problems affecting concrete structures, especially magnesium sulfate attack. This paper presents an investigation on the mechanical properties and damage evolution of high performance concrete (HPC) with ...
Sheng Cang, Xiaoli Ge, Yanlin Bao
doaj   +1 more source

Self-Curing Concrete under Sulfate Attack

open access: yesArchives of Civil Engineering, 2016
Self-curing concrete SC is a concrete type that can be cured without using any external curing regimes. It can perform by several methods such as using lightweight aggregate or chemical agents. In this research chemical curing agent is used to produce SC.
Bashandy A. A.
doaj   +1 more source

Evaluation of external sulfate attack (Na2SO4 and MgSO4): Portland cement mortars containing siliceous supplementary cementitious materials

open access: yesRevista IBRACON de Estruturas e Materiais, 2020
: Sulfate attack is a term used to describe a series of chemical reactions between sulfate ions and hydrated compounds of the hardened cement paste. The present study aims to evaluate the physical (linear expansion, flexural and compressive strength) and
Diego Jesus de Souza   +2 more
doaj   +1 more source

Effect of hoop restraint on the degradation behavior of cement paste exposed to sodium sulfate solution

open access: yesJournal of Materials Research and Technology, 2023
Concrete filled steel tube (CFST) is an effective method to alleviate sulfate attack in saline soil environments. In this study, the effect of hoop restraint on the degradation behavior due to sulfate attack in ordinary Portland cement (OPC) paste and ...
Jierong Cao   +5 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

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