Results 21 to 30 of about 1,092 (185)

Experimental Methods to Evaluate the Carbonation Degree in Concrete—State of the Art Review

open access: yesApplied Sciences, 2023
The carbonation action in concrete, in which carbonation reactions transform calcium hydroxide into calcium carbonate, is considered as a multi-phase physico-chemical process.
Huyen Bui   +2 more
doaj   +1 more source

Carbonation of Water Repellent-Treated Concrete

open access: yesAdvances in Materials Science and Engineering, 2017
Water repellent treatment has been considered an effective preventive method against water and aggressive ions penetration into concrete and consequently can improve the durability of concrete structures.
Peng Zhang   +5 more
doaj   +1 more source

Study of Durability of Concrete with Fly Ash as Fine Aggregate under Alternative Interactions of Freeze-Thaw and Carbonation

open access: yesAdvances in Civil Engineering, 2019
To study the durability of concrete with fly ash as fine aggregate subjected to alternative attacks of freeze-thaw and carbonation, the appearance, mass loss, relative dynamic modulus of elasticity, relative compressive strength, and carbonation depth of
Mingjie Mao   +3 more
doaj   +1 more source

A Review of Concrete Carbonation and Approaches to Its Research under Irradiation

open access: yesBuildings, 2023
The current state of knowledge on concrete carbonation has proven that this phenomenon is one of the key factors influencing the reinforced concrete durability reduction during the operational period.
Vyacheslav Medvedev, Andrey Pustovgar
doaj   +1 more source

Preliminary Investigation of Carbonation Problem Progress in Concrete buildings of North Cyprus

open access: yesMATEC Web of Conferences, 2018
Carbonation process is regarded as one of the most critical durability problem in concrete. As a result of carbonation process, the pH level in concrete is reduced and corrosion of reinforcements initiates, yielding significant damage both in ...
Malami Salim Idris   +2 more
doaj   +1 more source

CO2 uptake potential due to concrete carbonation: A case study

open access: yesCase Studies in Construction Materials, 2017
The cement manufacturing process accounts for about 5% CO2 (carbon dioxide) released into the atmosphere. However, during its life cycle, concrete may capture CO2 through carbonation, in order to, partially, offset the impact of its production.
Edna Possan   +4 more
doaj   +1 more source

Effects of CaO-based expansive agent on carbonation resistance of marine concrete

open access: yesCase Studies in Construction Materials
Marine concrete contains a high volume of supplementary cementitious materials, which benefits low-carbon concrete production. However, they may also increase the risk of cracking and accelerate the carbonation due to the pozzolanic reaction ...
Jian Zhang   +6 more
doaj   +1 more source

Preliminary study of the effect of carbonation curing on geopolymers

open access: yesRevista IBRACON de Estruturas e Materiais, 2023
Carbonation curing differs from weathering carbonation since it is performed intentionally at the early ages of cement hydration. This cure involves applying different levels of CO2 (5% to 99%) to concrete for a short period of time, usually followed by ...
Neusa Aparecida Munhak Beltrame   +3 more
doaj   +1 more source

Improving carbonation resistance, strength, and microstructure of concrete through compression casting

open access: yesCase Studies in Construction Materials
This study addresses the significant issue of steel corrosion in reinforced concrete structures, which incurs billions of dollars in annual costs globally, with a substantial portion attributed to concrete carbonation.
Jun-Ru Li   +3 more
doaj   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

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