Concrete carbonation
Probabilistic Analysis of Reinforced Concrete Carbonation Depth
... of carbonation depth (Xc) from a probabilistic analysis, focusing specifically on the study of the randomness of the most influential parameters on the reinforced concrete ...
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Solving Moving Boundary Concrete Carbonation Models
... Abstract. In this work we present a finite difference method to solve a coupled mixed partial differential equation system arising in concrete carbonation problems. The free boundary problem under study is ...
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Carbonic Gas Randomness Effect on Reinforced Concrete Carbonation
... of concrete carbonation depends mainly on the dioxide carbon penetration inside the cement ...of concrete is determined by the water to cement ratio and ...of carbonation 1 is short ...
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Modeling of concrete carbonation in deep geological disposal of intermediate level waste
... atmospheric carbonation coupled with the drying process of ILLW concrete disposal packages in deep geological conditions during the operating period were ...low-performance concrete to 10 years for ...
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Water permeability and carbonation on foamed concrete
... Foamed concrete is a controlled density low strength material with density ranging from 300 kg/m 3 to 1800 kg/m 3 suitable for construction of ...foamed concrete blocks and panels by the Construction ...
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Durability Properties and Microstructure of Ground Granulated Blast Furnace Slag Cement Concrete
... the concrete resistance against ...of concrete carbonation, many researchers have used accelerated carbonation test to shorten the experimental ...accelerated carbonation test ...the ...
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Carbonation of concrete taking into account the cracks in the protective concrete layer
... reinforced concrete structures is an aggressive impact of the external environment, in particular, the carbon dioxide contained in the environment that facilitates the corrosion of the reinforcement due to the ...
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Corrosion Process of Reinforced Concrete by Carbonation in a Natural Environment and an Accelerated Test Chamber
... of concrete reinforcement reported here indicates that inherent concrete porosity is a critical factor in steel reinforcement corrosion, but that pore moisture content is the fundamental determining factor ...
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Optimal Mixture Design of Low-CO2 High-Volume Slag Concrete Considering Climate Change and CO2 Uptake
... In this section, we designed concretes of different strength without considering climate change. The con- crete mixtures were determined based on the genetic algorithm considering the objective function and vari- ous ...
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Performance Based Evaluation of Carbonation Resistance of Concrete According to Various Curing Conditions from Climate Change Effect
... increase concrete carbonation resistance (Khunthongkeaw et ...When concrete structures are subject to carbonation, their perfor- mance degrades due to the corrosion of reinforcement ...
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Estimation of the Passivation of Steel Embedded in Alternative Concrete using a Galvanostatic Pulse Technique
... reinforced concrete subjected to accelerated carbonation and a natural environment measured the open circuit potential and compared the values of the specific GBFS with those obtained in the FA ...
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Carbonation Rate and Reinforcing Steel Corrosion of Concretes with Recycled Concrete Aggregates and Supplementary Cementing Materials
... the concrete production causes, and as sustainability contribution for this industry; presently some improvements are being implemented in its durability and its components are been replaced for alternative ...
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Critical Carbonation Depth for Initiation of Steel corrosion in Fully Carbonated Concrete and Development of Electrochemical Carbonation Induced Corrosion Model
... of concrete, while changed to purple portion shows non-carbonated ...epoxy, carbonation depths were measured at four different points from both exposed ...of carbonation depth, half- cell potential ...
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Unwavering Quality Study of Reinforced Concrete Structures under Carbonation Attack
... for carbonation is fundamentally essential inside the toughness assessment and administration ways of life appraisal of solid structures. Consumption is the pulverization of metals and combinations through the ...
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Determination of the Efficiency of Cathodic Protection Applied to Alternative Concrete Subjected to Carbonation and Chloride Attack.
... accelerated carbonation and then immersed in NaCl solution to study the influence of carbonation on penetration of chloride ion, mixing these two corrosive phenomena of the same ...in concrete ...
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STUDIES OF DURABILITY ASPECTS OF FIBRE REINFORCED CONCRETE
... on concrete and prisms were used to measure the depth of carbonation on hardened ...Fresh concrete was poured into oiled steel moulds and kept for 24 ...hours. Concrete specimens were then ...
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Industrial Byproduct- Based Concrete Subjected to Carbonation. Electrochemical Behavior of Steel Reinforcement
... Table 2 details the results for oxide and hydroxide percentages present in each concrete type. It can be seen that there is a high percentage of iron in all cases. For the 90%GBFS+10%FA and 80%GBFS+20%FA concretes ...
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Performance of Carbon Steel and Galvanized Steel in Reinforced Concrete Structures after Accelerated Carbonation
... Figure 2 shows the average variation in electrical resistivity versus time, for samples with and without carbonation. A trend to decrease resistivity in the first days of exposure can be seen due to humectation of ...
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CAUSES OF CONCRETE FAILURE
... of concrete is affected by chemical reaction due to chemical interactions between aggressive agents present in the external environment and the constituents of the cement ...
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Carbonation Resistance and Anticorrosive Properties of Organic Coatings for Concrete Structures
... order to evaluate their protection level against induced chloride corrosion and carbonation. Six reinforced speci- mens from each coating were partially immersed in 3.5 wt% NaCl solution for 15 months and during ...
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