Correlation Analysis between Different Types of Corrosion of Concrete Containing Sulfate Resisting Cement

Harbulakova, Vlasta Ondrejka; Estokova, Adriana; Kovalcikova, Martina

doi:10.3390/environments4030044

Cited by 21 publications

(9 citation statements)

References 24 publications

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“…Modern SIS implement blocking and automatic security smart algorithms. Their task is to bring the process (i.e., water supply to the consumer in our case) back to a safe functioning [22][23][24].…”

Section: The Multi-barrier Systemmentioning

confidence: 99%

Functional Safety Concept to Support Hazard Assessment and Risk Management in Water-Supply Systems

2021

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Within the frame of upgrading and modernisation of the Water Supply System (WSS), our work is focussing on the safety systems/devices implemented or that should be implemented in the WSS. The implementation of safety systems is supposed to reduce hazard occurrence and hazardous consequences in case of a WSS unsafe disruption. To assess this reduction, we preconise the use of the safety integrity levels standards. The implementation of the safety systems/devices is undertaken on the ground of the multi-barriers safeguard approach. The “Water Contamination Hazard” is considered in the paper. A case study is presented, assessed and conclusions are drawn. The methodology presented in the paper and the results of the case study assessment will contribute to the decision-making regarding the upgrading of the safety and the performance of the WSS.

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Section: The Multi-barrier Systemmentioning

confidence: 99%

Functional Safety Concept to Support Hazard Assessment and Risk Management in Water-Supply Systems

2021

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“…In addition to the two typical alkali-activated cementitious material systems mentioned above, the third system is the hybrid cementitious material system, which is also a hot research topic at present. Generally, there are two combinations of hybrid cementitious materials: The first combination contains a small amount of cement, which is the most common composite method (Acevedo-Martinez et al, 2012;Escalante-Garcia et al, 2014;Li and Li, 2014); the second type does not contain cement and is made of industrial wastes, and the most common example is the GBFS-fly ash composite material system (Lee et al, 2014;Harbulakova et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Effects of the Silicate Modulus of Water Glass on the Hydration and Mechanical Properties of Alkali-Activated Blast Furnace Ferronickel Slag

Liu

Sun

2021

Front. Mater.

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Blast furnace ferronickel slag (BFNS), currently an underutilized metallurgical residue, was investigated for use as a precursor for alkaline activation. Water glass solutions with various moduli (0.5, 1.0, 1.5 and 2.0) were used at the same water glass concentration of 10% to investigate the influence of the modulus on hydration and mechanical properties. The results show that the modulus has a certain impact on the hydration and mechanical strength development of alkali-activated BFNS. Increasing the modulus of water glass does not change the type of hydration product and the activity of the Mg-containing phases, but it decreases the amount of C2AS, the Ca/Si and Al/Si ratios of the (N,C)-A(M)-S-H gel. In addition, a high silicate modulus deteriorates the pore structure, which has an adverse effect on the development of compressive strength and splitting tensile strength.

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“…However, the water supply intended for customers must be of an adequate quality not only at the place and time of entry into the network but also at the point of reception [1,2]. This is important as the transfer of water to recipients may often entail a deterioration in quality, e.g., as harmful substances are released by the material from which the network is made [3], as biofilms or other deposits first form and then become detached, and as the release of other compounds take place [4,5]. According to Van der Kooij, to maintain water stability, pressure of a minimum of 2 bar should be provided [6].…”

Section: Introductionmentioning

confidence: 99%

An Approach to Estimating Water Quality Changes in Water Distribution Systems Using Fault Tree Analysis

2019

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Given that a consequence of a lack of stability of the water in a distribution system is increased susceptibility to secondary contamination and, hence, a threat to consumer health, in the work detailed here we assessed the risk of such a system experiencing quality changes relating to the biological and chemical stability of water intended for drinking. Utilizing real operational data from a water treatment station, the presented analysis of the stability was performed based on the fault tree method. If they are to protect their critical-status water supply infrastructure, water supply companies should redouble their efforts to distribute stable water free of potentially corrosive properties. To that end, suggestions are made on the safeguarding of water distribution systems, with a view to ensuring the safety of operation and the long-term durability of pipes.

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Correlation Analysis between Different Types of Corrosion of Concrete Containing Sulfate Resisting Cement

Cited by 21 publications

References 24 publications

Functional Safety Concept to Support Hazard Assessment and Risk Management in Water-Supply Systems

Functional Safety Concept to Support Hazard Assessment and Risk Management in Water-Supply Systems

Effects of the Silicate Modulus of Water Glass on the Hydration and Mechanical Properties of Alkali-Activated Blast Furnace Ferronickel Slag

An Approach to Estimating Water Quality Changes in Water Distribution Systems Using Fault Tree Analysis

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