...) and compared with commercial NP composites (CCs) at identical dosages. The workability, hydration kinetics, mechanical properties, drying shrinkage behaviour, carbonation resistance and microstructural characteristics were evaluated up to 90 days. The IC samples exhibited excellent dispersion...

...Wei-bin Yuan; Zi-Bo Song; Nan-ting Yu; Lei Jin; Tao Shi Recycled concrete aggregates (RCAs) have gained significant attention as a sustainable alternatives to natural aggregates in the construction industry. Carbonation treatment of RCAs is one of the methods currently used to enhance...

... to capture the distinct transport, reaction and degradation mechanisms of these new materials, potentially leading to inconsistent or misleading performance assessments. This review critically examines current test methodologies for key deterioration processes, including chloride ingress, carbonation...

...Xiaochun Lu; Haojie Cheng; Jingkang Zhang; Bin Tian Panel concrete structures of concrete-faced rockfill dams (CFRDs) in China’s Three-North regions are frequently exposed to freeze–thaw ( FT ) cycles and carbonation, which pose significant durability challenges. In this study, the durability...

...Yingyu Wang; Peiyuan Chen; Zijian Zong; Jin Li; Jingjing Fang; Aiguo Wang The viability of converting recycled concrete fines ( RCF ) into low-grade artificial limestone, through carbonation in aqueous systems, for use as a sustainable replacement for high-grade limestone in limestone–calcined clay...

...Rong Huang; Yuesheng Cai; Junjie Wang; Lei Xu; Bo Ran The hydration of synthesised C₃S samples (93.7% C₃S + 6.3% C₂S) with different water–solid ratios (WSRs) and the subsequent carbonation of the hydration products (mainly hydrated calcium silicate (C-S-H)) were...

.... It was ground (GCBA) for two hours prior to replacing 10–30% PC, while CBA was used in raw form to replace 25% and 50% NFA. The mechanical properties along with durability properties (accelerated carbonation and chloride penetration) were studied after 28 days and 90 days of curing. Non-destructive tests were...

...Clarissa Glawe; Michael Raupach Steel corrosion is one of the main factors limiting the durability of existing reinforced concrete components. Based on the corrosive circumstances, different prevention and repair methods can be applied. In the case of carbonation-initiated corrosion, chemical re...

...Long Chen; Tianli Huang; Hua-peng Chen Concrete carbonation is one of the major factors causing the deterioration of reinforced concrete structures. Therefore, accurately predicting the carbonation depth is of great significance in safety assessments of structures. The aim of this study...

...Saurav Kumar Saikia; Aditya Singh Rajput Carbon dioxide sequestration in cement-based materials has emerged as a promising avenue for utilising captured carbon dioxide (CO₂) and reducing the carbon dioxide footprint of the concrete industry. This article presents a comprehensive review...

...Amir Karimi; Mohammad Ghanooni-Bagha; Ehsan Ramezani; Ali Akbar Shirzadi Javid; Masoud Zabihi Samani After water, concrete is the most widely used substance on the planet. Carbonation of cementitious materials is an inevitable process through which concrete compositions react with carbon dioxide...

... properties, while increasing the amount of ICW considerably improved the durability properties. 29 10 2022 03 03 2023 Emerald Publishing Limited: All rights reserved 2023 carbonation curing durability-related properties permeability & pore-related properties porosimetry...

... is filled through crystal precipitation, which is realised mainly in two ways: carbonation (formation of calcium carbonate (CaCO_{3)) and hydration of unhydrated cementitious materials present on the crack surfaces (formation of calcium hydroxide (Ca(OH)2) and calcium silicate hydrate (C-S-H}...

... the initiation period, in which case the design service life is equal to the initiation period. If this is adopted as the criterion for the end of the service life, concrete inside buildings would be the worst case, as it may carbonate more rapidly than concrete either outside or outside and protected from...

... mixtures incorporating GCBA at 20 wt% replacement of binder and CBA at 0, 25, 50, 75 and 100 wt% replacement of FNA were produced and tested for strength, microstructural characteristics and carbonation resistance. A base concrete mixture made of conventional concrete was also produced as a reference...

...Yanfeng Fang; Yuzhuo Zhang; Miao Zhang; Mingyu Zhao; Qinghe Wang The potential of utilising alkaline industrial waste with weak or no cementitious properties for carbon dioxide (CO₂) capture and for new binders by accelerated carbonation was studied; steel slag (SS), calcium carbide...

... samples were cored from the deck and were evaluated for split strength, density and rubber content. Four cored samples were further scanned by computerised image software to reveal the distribution of rubber crumbs. In March 2019, water permeability and carbonation tests were carried out on the deck...

...Ji Zhang; Peng Zhu; Wenjun Qu The combination of realkalisation and migrating corrosion inhibitor (MCI) was proposed as a protective technique for structures subjected to carbonation-induced corrosion; the effects on passivated steel bars in partly carbonated concrete were investigated...

...Faris Matalkah; Yaser Jaradat; Parviz Soroushian; Rankothge Weerasiri The main thrust of the work reported herein is to study the effect of chemical additives to make beneficial use of carbon dioxide in enhancing the compressive strength of dry-cast concrete. The additives used...

...Peng Liu; Ying Chen; Zhiwu Yu The influences of temperature, relative humidity (RH) and carbon dioxide (CO₂) concentration on concrete carbonation in a simulated environment were investigated. The carbonation depth, compressive strength and surface strain of concrete under different...