Sustainable Concrete: Design and Performance Analysis

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Materials, and Repair & Renovation".

Deadline for manuscript submissions: closed (10 February 2025) | Viewed by 1200

Special Issue Editor


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Guest Editor
School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
Interests: geopolymer; cement; concrete; ultra-high-performance concrete; fiber-reinforced concrete; alkali-activated materials

Special Issue Information

Dear Colleagues,

Concrete is the most widely used construction material globally, pivotal to infrastructure development. However, its production and use have significant environmental impacts, including high carbon dioxide emissions, extensive natural resource consumption, and waste generation. To address these challenges, the field of sustainable concrete is emerging, focusing on innovative materials, designs, and technologies to reduce the environmental footprint of concrete while maintaining or enhancing performance.

This Special Issue, "Sustainable Concrete: Design and Performance Analysis", aims to gather cutting-edge research and case studies that advance the understanding and implementation of sustainable concrete practices. We invite authors to submit original research articles, reviews, and case studies that explore various aspects of sustainable concrete, including but not limited to the following:

  • Development and characterization of eco-friendly concrete materials, such as those incorporating recycled aggregates, industrial by-products, or alternative binders.
  • Design methodologies that enhance the durability and lifecycle performance of sustainable concrete structures.
  • Advanced manufacturing techniques and technologies, such as 3D printing and modular construction, promote sustainability in concrete applications.
  • Evaluation of the environmental impact of concrete production and usage through lifecycle assessment (LCA) and other analytical tools.
  • Case studies demonstrating successful applications of sustainable concrete in real-world projects, highlighting both challenges and achievements.
  • Policies, regulations, and incentives that support the adoption of sustainable concrete practices.

This Special Issue seeks to provide a comprehensive platform for researchers, practitioners, and policymakers to share knowledge, foster innovation, and drive the transition toward more sustainable concrete solutions. By disseminating these findings, we aim to contribute to the global effort to mitigate the environmental impact of the construction industry and promote sustainable development.

Dr. Mo Zhang
Guest Editor

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Keywords

  • sustainable concrete
  • eco-friendly materials
  • lifecycle assessment (LCA)
  • recycled aggregates
  • durability analysis

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Published Papers (1 paper)

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Research

17 pages, 5607 KiB  
Article
Improving Recycled Concrete Aggregate Performance via Microbial-Induced Calcium Carbonate Precipitation: Effects of Bacterial Strains and Mineralization Conditions
by Jian Wang, Sen Pang, Xiaoqing Zhan, Wenzhu Wei, Xiaoxiao Li, Ling Wang, Xiaoli Huang and Lei Zhang
Buildings 2025, 15(5), 825; https://doi.org/10.3390/buildings15050825 - 5 Mar 2025
Cited by 1 | Viewed by 845
Abstract
The use of recycled coarse aggregates (RCA) in concrete production offers significant environmental and economic benefits. However, the high water absorption and low mechanical strength of RCA, caused by residual mortar and internal cracks, severely limit its application. This study employed microbial-induced calcium [...] Read more.
The use of recycled coarse aggregates (RCA) in concrete production offers significant environmental and economic benefits. However, the high water absorption and low mechanical strength of RCA, caused by residual mortar and internal cracks, severely limit its application. This study employed microbial-induced calcium carbonate precipitation (MICP) technology to improve RCA performance, systematically investigating the effects of key parameters such as bacterial strains, bacterial concentration, modification duration, and urea addition sequence. This study employed microbial-induced calcium carbonate precipitation (MICP) technology to enhance the performance of RCA. The investigation systematically examined the effects of key parameters, including bacterial strains (Bacillus subtilis, urease mixed bacteria, and Bacillus pasteurii), bacterial concentrations (0, 2.4 × 107 cells/mL, 9.3 × 107 cells/mL, 2.49 × 108 cells/mL, and 2.36 × 109 cells/mL), modification durations (0 d, 3 d, 7 d and 14 d), and urea addition sequences (urea added to the calcium source, urea added to the culture medium, and added to the bacterial solution followed by 2 h of incubation). The impact of MICP treatment on RCA’s water absorption, apparent density and resistance to ultrasonic impact was analyzed. Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) were used to characterize the microstructure and composition of calcium carbonate deposits, revealing the mechanisms by which MICP enhances RCA performance. The results showed that optimized MICP treatment reduced RCA water absorption by 32.5%, with the optimal conditions being a bacterial concentration of 2.4 × 107 cells/mL, a modification duration of 7 days, and a two-hour urea resting period. It is primarily due to calcium carbonate filling pores and sealing cracks, which significantly improves the structural integrity of RCA. This study demonstrates that MICP is an effective and sustainable method for RCA modification, providing theoretical support and practical insights for the recycling of construction waste and the promotion of green building materials. Full article
(This article belongs to the Special Issue Sustainable Concrete: Design and Performance Analysis)
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