Hydrated cement is one of the complex composite systems due to the presence of multi-scale phases with varying morphologies.Calcium silicate hydrate,which is the principal binder phase in the hydrated cement,is respon...Hydrated cement is one of the complex composite systems due to the presence of multi-scale phases with varying morphologies.Calcium silicate hydrate,which is the principal binder phase in the hydrated cement,is responsible for the stiffness,strength,and durability of Portland cement concrete.To understand the mechanical and durability behavior of concrete,it is important to investigate the interactions of hydrated cement phases with other materials at the nanoscale.In this regard,the molecular simulation of cement-based materials is an effective approach to study the properties and interactions of the cement system at the fundamental scale.Recently,many studies have been published regarding atomistic simulations to investigate the cement phases to define/explain the microscopic physical and chemical properties,thereby improving the macroscopic performance of hardened binders.The research in molecular simulation of cementitious systems involves researchers with multidisciplinary backgrounds,mainly in two areas:(1)cement chemistry,where the hydration reactions govern most of the chemical and physical properties at the atomic scale;and(2)computational materials science and engineering,where the bottom-up approach is required.The latter approach is still in its infancy,and as such,a study of the prevailing knowledge is useful,namely through an exhaustive literature review.This state-of-theart report provides a comprehensive survey on studies that were conducted in this area and cites the important findings.展开更多
The lack of periodic safe disposal of silico-manganese wastes poses significant environmental and health risks.Producing each ton of silico-manganese alloy results in more than one ton of slag and 10%–15%fume,which c...The lack of periodic safe disposal of silico-manganese wastes poses significant environmental and health risks.Producing each ton of silico-manganese alloy results in more than one ton of slag and 10%–15%fume,which can supplement cement in concrete.This study presents the first critical review of silicomanganese fume(SiMnF)for the synthesis of cementitious composites and evaluation of engineering properties.The review covers the fresh,hardened,and durability characteristics,along with the microstructural development of SiMnF-based Portland cement and alkali-activated products.It also examines the synergistic effects of SiMnF with other supplementary cementitious materials,focusing on rheological and mechanical aspects.The findings indicate that pre-treatment of raw materials and post-treatment of composites are essential for achieving target properties.Optimized dosage of SiMnF,alkaline activator concentration,and curing conditions can provide workable mixes with compressive strengths of up to 50 MPa.A detailed life-cycle assessment was conducted to quantify the environmental impact of SiMnF-based mixtures.Based on identified knowledge gaps,the study proposes a roadmap for future research.This review highlights the strategies for SiMnF from ferroalloy plants to be used in the cement and concrete industries,promoting solid waste management,reducing carbon footprints,and supporting sustainable development towards net-zero emission targets.展开更多
Correction:Low-carbon Mater.Green Constr.3,24(2025)https://doi.org/10.1007/s44242-025-00084-8 Following publication of the original article[1],it is reported that one of the corresponding authors,Aziz Hasan Mahmood,wa...Correction:Low-carbon Mater.Green Constr.3,24(2025)https://doi.org/10.1007/s44242-025-00084-8 Following publication of the original article[1],it is reported that one of the corresponding authors,Aziz Hasan Mahmood,was not correctly identified as a corresponding author due to typesetting mistake.The authorship has now been corrected.The original article[1]has been updated.展开更多
基金the support provided by the Deanship of Research Oversight and Coordination(DROC)at King Fahd University of Petroleum and Minerals(KFUPM),Saudi Arabia,for funding this work through Project No.DF191009The support provided by the Department of Civil and Environmental Engineering and Interdisciplinary Research Center for Construction and Building Materials at the Research Institute,KFUPM。
文摘Hydrated cement is one of the complex composite systems due to the presence of multi-scale phases with varying morphologies.Calcium silicate hydrate,which is the principal binder phase in the hydrated cement,is responsible for the stiffness,strength,and durability of Portland cement concrete.To understand the mechanical and durability behavior of concrete,it is important to investigate the interactions of hydrated cement phases with other materials at the nanoscale.In this regard,the molecular simulation of cement-based materials is an effective approach to study the properties and interactions of the cement system at the fundamental scale.Recently,many studies have been published regarding atomistic simulations to investigate the cement phases to define/explain the microscopic physical and chemical properties,thereby improving the macroscopic performance of hardened binders.The research in molecular simulation of cementitious systems involves researchers with multidisciplinary backgrounds,mainly in two areas:(1)cement chemistry,where the hydration reactions govern most of the chemical and physical properties at the atomic scale;and(2)computational materials science and engineering,where the bottom-up approach is required.The latter approach is still in its infancy,and as such,a study of the prevailing knowledge is useful,namely through an exhaustive literature review.This state-of-theart report provides a comprehensive survey on studies that were conducted in this area and cites the important findings.
文摘The lack of periodic safe disposal of silico-manganese wastes poses significant environmental and health risks.Producing each ton of silico-manganese alloy results in more than one ton of slag and 10%–15%fume,which can supplement cement in concrete.This study presents the first critical review of silicomanganese fume(SiMnF)for the synthesis of cementitious composites and evaluation of engineering properties.The review covers the fresh,hardened,and durability characteristics,along with the microstructural development of SiMnF-based Portland cement and alkali-activated products.It also examines the synergistic effects of SiMnF with other supplementary cementitious materials,focusing on rheological and mechanical aspects.The findings indicate that pre-treatment of raw materials and post-treatment of composites are essential for achieving target properties.Optimized dosage of SiMnF,alkaline activator concentration,and curing conditions can provide workable mixes with compressive strengths of up to 50 MPa.A detailed life-cycle assessment was conducted to quantify the environmental impact of SiMnF-based mixtures.Based on identified knowledge gaps,the study proposes a roadmap for future research.This review highlights the strategies for SiMnF from ferroalloy plants to be used in the cement and concrete industries,promoting solid waste management,reducing carbon footprints,and supporting sustainable development towards net-zero emission targets.
文摘Correction:Low-carbon Mater.Green Constr.3,24(2025)https://doi.org/10.1007/s44242-025-00084-8 Following publication of the original article[1],it is reported that one of the corresponding authors,Aziz Hasan Mahmood,was not correctly identified as a corresponding author due to typesetting mistake.The authorship has now been corrected.The original article[1]has been updated.
