scholarly journals QUANTITATIVE DESIGN METHODS OF CORROSION PROTECTION THE REINFORCED CONCRETE STRUCTURES AT THE STAGES OF THE LIFE CYCLE

2020 ◽  
pp. 153-158
Keyword(s):  
Life Cycle ◽  
Reinforced Concrete ◽  
Corrosion Protection ◽  
Concrete Structures ◽  
Design Methods ◽  
Reinforced Concrete Structures ◽  
Quantitative Design

scholarly journals Quantitative Design Methods for Protection Against Corrosion of Reinforced Concrete Structures During Various Stages of their Life Cycle

2020 ◽  
Vol 28 (3) ◽  
pp. 8-12
Author(s):  
Mykola Savytskyi ◽  
Stanislav Uncik ◽  
Olexandr Bardakh ◽  
Andriy Savytskyi ◽  
Tetiana Shevchenko ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structures ◽  
Design Methods ◽  
Economic Feasibility ◽  
National Standards ◽  
Reinforced Concrete Structures ◽  
Quantitative Methodology ◽  
Aggressive Environment ◽  
Quantitative Design ◽  
Kinetics Of

AbstractThere are large amounts of reinforced concrete structures that have undergone damage from corrosion at their operational stage. The Eurocodes and national standards do not contain any guidelines for designing primary protection and repair systems for reinforced concrete structures. Our research shows the economic feasibility of designing reinforced concrete structures that can interact with an aggressive environment, taking into account the kinetics of concrete corrosion. Optimal design methods can be used to obtain the most economical solutions. We have developed a quantitative methodology for the design of the primary protection of reinforced concrete structures.

Reducing The Life Cycle Cost of Reinforced Concrete Structures by using Fiber in Concrete

2014 ◽  
Vol 4 (3) ◽  
pp. 1-9
Author(s):  
Badrinarayan Rath ◽  
◽  
Shirish Deo ◽  
Gangadhar Ramtekkar ◽  
◽  
...  
Keyword(s):  
Life Cycle ◽  
Reinforced Concrete ◽  
Life Cycle Cost ◽  
Concrete Structures ◽  
Reinforced Concrete Structures

scholarly journals Corrosion protection of reinforcing steel reinforced concrete structures of transport structures

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Alexander Bulkov ◽  
Michail Baev ◽  
Igor Ovchinnikov
Keyword(s):  
Reinforced Concrete ◽  
Corrosion Protection ◽  
Concrete Structures ◽  
Steel Corrosion ◽  
High Strength ◽  
Curing Temperature ◽  
Reinforced Concrete Structures ◽  
Reinforcing Steel ◽  
Steel Reinforced Concrete ◽  
Advantages And Disadvantages

The influence of reinforcing steel corrosion on the durability of reinforced concrete structures of transport structures and the degree of knowledge of this problem is considered. It is specified that the protection of reinforcing steel from corrosion is not able to completely replace the correct design and use of high-strength concrete. But it is able to extend the life of reinforced concrete structures. It is noted that corrosion of the reinforcement leads to a decrease in the structural strength due to wear and tear and by a third of the period of operation of reinforced concrete structures, as a result of which transport structures collapse. As an example of the detrimental effect of corrosion of reinforcing steel on the durability of transport structures, examples of accidents of bridges and overpasses caused by this type of corrosion are given. As a result, a conclusion is drawn on the advisability of ensuring a sufficient level of corrosion protection of reinforcing steel to achieve the required durability of reinforced concrete structures of transport structures. The types and causes of corrosion processes in reinforcing steel reinforced concrete structures are described. The compositions and technologies of anticorrosive protection are examined and analyzed. Comparison of the compositions of anticorrosive protection of reinforced concrete structures is carried out according to the following criteria: consumption, density, viability, curing temperature and the number of components of the composition. A comparison of anti-corrosion protection technologies is carried out on the basis of the following indicators: line dimensions, productivity and consumption of energy resources. A comparison is also made of the cost of using various anti-corrosion protection technologies. Based on the data obtained, the advantages and disadvantages of the considered compositions and technologies of corrosion protection are determined. As a result, the most effective and technologically advanced method of corrosion protection of steel reinforcement of reinforced concrete structures of transport structures is selected.

Normative Service Life Of Concrete And Reinforced Concrete Structures And Principles Of Their Design Based On Durability Parameters

2019 ◽  
pp. 13-22
Keyword(s):  
Life Cycle ◽  
Reinforced Concrete ◽  
Service Life ◽  
Bearing Capacity ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Life Cycle Design ◽  
Determining Factors ◽  
Corrosion State ◽  
Standard Service

The paper systematizes the main criteria necessary to determine the standard service life of concrete and reinforced concrete structures; the state of domestic and foreign regulatory framework is analyzed in terms of requirements for the service life of reinforced concrete structures; the main normative and technical documents are considered in the field of life cycle design of reinforced concrete structures of buildings and constructions. The types of corrosion damages of reinforced concrete structures and their determining factors are described; the internationally agreed models of durability for some degradation processes are given. On the basis of the work carried out, proposals were prepared to assess the corrosion state of the exploited reinforced concrete structures, their residual bearing capacity, operational serviceability, expected service life under specified aggressive actions, and methods for determining the standard service life of reinforced concrete structures. Proposals for the development and updating of a number of relevant regulatory, technical, organizational and methodological documents are given.

Sign in / Sign up

Export Citation Format

Share Document