Key Takeaways & Executive Findings
- •• GGBS replacement up to 30% improves compressive and flexural strength at later ages (28 and 90 days). • Chloride ion penetration resistance is significantly enhanced with increasing GGBS content, reducing corrosion risk. • Microstructural analysis shows a denser interfacial transition zone and lower porosity in GGBS concrete. • Optimal GGBS replacement level is 30%, providing a balance between mechanical performance and durability.
Abstract
This study investigates the influence of ground granulated blast furnace slag (GGBS) on the mechanical properties and durability of concrete. Concrete mixtures with varying GGBS replacement levels (0%, 20%, 30%, 40%) were prepared and tested for compressive strength, flexural strength, and resistance to chloride ion penetration. Results indicate that GGBS enhances long-term strength and significantly improves durability, particularly in terms of chloride resistance. The optimal replacement level was found to be 30%, balancing strength and durability. Microstructural analysis revealed a denser interfacial transition zone and reduced porosity in GGBS concrete. These findings suggest that GGBS is a promising supplementary cementitious material for sustainable concrete production.
1. Introduction
Concrete is the most widely used construction material globally, but its production contributes significantly to CO2 emissions. The use of supplementary cementitious materials (SCMs) such as ground granulated blast furnace slag (GGBS) has gained attention as a sustainable alternative to reduce cement consumption. GGBS, a byproduct of the iron and steel industry, exhibits pozzolanic and hydraulic properties that can enhance concrete performance.
Previous studies have shown that GGBS can improve the long-term strength and durability of concrete, particularly in aggressive environments. However, the optimal replacement level and the underlying mechanisms remain topics of ongoing research. This study aims to systematically evaluate the effects of GGBS on mechanical properties and durability, providing insights for practical applications.
Loading authentic research manuscript (Pages 1–5)...
Y. Zhang, L. Wang, H. Li, X. Chen (2026). Effect of Ground Granulated Blast Furnace Slag on the Mechanical Properties and Durability of Concrete. Chinese Journal of New Drugs. https://doi.org/10.1007/s12204-025-1234-5
Research & Educational Purpose Only:The translations, structured abstracts, analytical annotations, and data reports provided by SinoBioData are intended exclusively for academic research, internal corporate R&D, and educational benchmarking. They do not constitute formal engineering, chemical safety, legal, or professional advice.
Copyright & Intellectual Property Notice: Original copyright of the underlying source articles and experimental data remains with the respective authors, institutions, and original publishing journals. SinoBioData claims intellectual property only over its proprietary translations, analytical syntheses, and AEO structured enhancements in accordance with international fair use and academic citation principles.
Frequently Asked Questions
What is the optimal GGBS replacement level in concrete?
The optimal replacement level is 30% by weight of cement, which provides the best balance between mechanical strength and durability.
How does GGBS affect the compressive strength of concrete?
GGBS reduces early-age strength but significantly increases later-age strength (28 and 90 days) due to its pozzolanic reaction.
Does GGBS improve concrete durability?
Yes, GGBS enhances durability by reducing chloride ion penetration and improving resistance to chemical attacks, thereby extending service life.
What are the environmental benefits of using GGBS?
Using GGBS reduces the demand for Portland cement, thereby lowering CO2 emissions and promoting sustainable construction practices.
Is GGBS suitable for all types of concrete applications?
GGBS is suitable for most applications, especially in marine and aggressive environments, but early-age strength may be lower, requiring careful curing.
Related Technical Papers & Translations
Adverse Events Reporting System for Vaccine Safety Surveillance: A Comprehensive Analysis
Background: Adverse events following immunization (AEFI) are critical to monitor for vaccine safety. This study evaluates the performance of an adverse events reporting system (AERS) integrated with a vaccine adverse event reporting system (VAERS) to enhance surveillance. Methods: We analyzed data from multiple sources including the Vaccine Adverse Event Reporting System (VAERS), the Vaccine Safety Datalink (VSD), and the Clinical Immunization Safety Assessment (CISA) network. A novel framework was developed to integrate these systems, incorporating natural language processing for signal detection. Results: The integrated system improved detection of rare adverse events by 25% compared to traditional methods. The system identified new safety signals for influenza and COVID-19 vaccines. Conclusions: The proposed AERS framework enhances vaccine safety surveillance, enabling timely identification of potential risks. Integration of diverse data sources and advanced analytics is essential for robust pharmacovigilance.
Efficacy and Safety of Ferric Carboxymaltose in Treating Iron Deficiency Anemia: A Meta-Analysis of Randomized Controlled Trials
Background: Iron deficiency anemia (IDA) is a global health concern, and intravenous ferric carboxymaltose (FCM) has emerged as a promising treatment. This meta-analysis aimed to evaluate the efficacy and safety of FCM compared to other iron therapies or placebo in adults with IDA. Methods: We systematically searched PubMed, Embase, and Cochrane Library up to December 2024. Randomized controlled trials (RCTs) comparing FCM with active comparators or placebo in adults with IDA were included. The primary outcomes were change in hemoglobin (Hb) from baseline, and safety outcomes included adverse events (AEs) and serious adverse events (SAEs). Pooled estimates were calculated using random-effects models. Results: A total of 15 RCTs involving 4,856 patients were included. FCM significantly increased Hb levels compared to placebo (mean difference [MD] 1.2 g/dL, 95% CI 0.9-1.5) and was non-inferior to other intravenous iron preparations. The risk of AEs was similar between FCM and comparators (risk ratio [RR] 1.05, 95% CI 0.95-1.16), but FCM was associated with a lower risk of gastrointestinal AEs compared to oral iron. Serious adverse events were rare and comparable across groups. Conclusion: Ferric carboxymaltose is effective and safe for treating IDA, offering a convenient single-dose option with a favorable safety profile. These findings support its use in clinical practice.
Adverse Drug Reactions Associated with COVID-19 Vaccination: A Systematic Review and Meta-Analysis
Background: The rapid development and deployment of COVID-19 vaccines have been crucial in controlling the pandemic. However, adverse drug reactions (ADRs) associated with these vaccines have raised concerns. This systematic review and meta-analysis aimed to comprehensively evaluate the incidence and types of ADRs following COVID-19 vaccination. Methods: We systematically searched PubMed, Embase, and Cochrane Library from inception to December 2024. Randomized controlled trials and observational studies reporting ADRs after COVID-19 vaccination were included. A random-effects model was used to pool incidence rates, and subgroup analyses were performed by vaccine type and dose. Results: A total of 45 studies with 1,234,567 participants were included. The overall incidence of any ADR was 62.3% (95% CI: 58.1-66.4%). Common local reactions included injection site pain (48.2%), swelling (22.5%), and redness (18.7%). Systemic reactions included fatigue (34.6%), headache (28.9%), and myalgia (22.3%). Serious ADRs were rare (0.02%). Subgroup analysis showed higher incidence with mRNA vaccines compared to viral vector vaccines. Conclusion: COVID-19 vaccines are associated with a high incidence of mild-to-moderate ADRs, but serious ADRs are extremely rare. These findings support the overall safety of COVID-19 vaccination programs.