相关参考文献
注意：仅列出部分参考文献，下载原文获取全部文献信息。
Article
Construction & Building Technology
Huixia Wu et al.
Summary: This study compares the micro-macro characteristics of sustainable mortar using construction waste fines as cement and sand replacement. The results show that waste concrete fines (WCF) and waste brick fines (WBF) exhibit pozzolanic activity, nucleation, and micro-aggregate filling effects. Replacing cement with WCF increases the porous structure while replacing with moderate WBF refines the pore structure; moreover, substituting WCF/WBF for sand refines the pore structure. Using appropriate WCF/WBF as cement replacement reduces drying shrinkage, but using them as sand replacement increases it. Incorporating WCF reduces the strength and permeability resistance, while the addition of WBF first improves and then declines these properties. Mixing WCF and WBF as sand replacement enhances the strength and permeability resistance. WBF blended mortar exhibits superior properties, and substituting WCF/WBF for both cement and sand can prepare sustainable mortar with similar or superior properties to plain mortar.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Petr Lehner et al.
Summary: The need to reduce greenhouse gas emissions is the main driving force behind research on the design of new cement-based composite materials. A sustainability indicator was used to compare different concrete mixes based on their mechanical and degradation properties, as well as the production and environmental value of each raw material. By analyzing two groups of concretes with zeolite as a replacement for aggregate, the study found that the water-cement ratio and the combination with other supplementary cementitious materials (SCMs) significantly affect the sustainability of the concrete. The results highlighted the potential of using 15% zeolite and 35% ground granulated blast furnace slag grade 120 as a more sustainable alternative to conventional concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Environmental Sciences
Jeonghyun Kim et al.
Summary: Recent studies have focused on the multiple recycling of concrete. It was found that multiple recycling increases the adhered mortar content of the aggregate, leading to increased water absorption and reduced slump of the recycled aggregate concrete. However, by adjusting the plasticizer dosage, the slump loss can be offset and the density, sorptivity, and mechanical strength improved within a certain range. This study revealed that the multiple recycled aggregate concrete can meet the requirements for structural concrete.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2023)
Article
Chemistry, Physical
Jeonghyun Kim et al.
Summary: The decrease in recycled aggregate quality limits the multi-recycling of concrete, affecting concrete performance. This study investigates the effect of equivalent mortar volume mix design on concrete made of multiple recycled aggregates. The results showed that concrete performance decreased with an increasing number of recycling cycles. However, an appropriate mix design and optimal aggregate replacement ratio can offset the property loss of multiple recycled aggregate concrete.
Article
Materials Science, Multidisciplinary
Jeonghyun Kim et al.
Summary: In order to reduce the environmental impact of carbon dioxide generated by the cement industry, attempts have been made to use waste cementitious powder as a supplementary cementitious material. This study investigated the effect of using abandoned cement as a partial replacement for cement in concrete, and attempted to enhance the performance of concrete through thermal activation of the cement. The results showed that thermally-activated concrete using waste cement exhibited better performance than conventional concrete.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Construction & Building Technology
Jeonghyun Kim et al.
Summary: Clay brick and granite waste can be used as recycled materials for cement mortar, and different forms of these materials have different effects on the properties of the mortar. Using recycled brick and granite as aggregate improves the strength development, while using them as powder helps mitigate drying shrinkage of the mortar.
Review
Engineering, Environmental
Yury A. Villagran-Zaccardi et al.
Summary: Global demand for buildings and infrastructure is rising, with concrete being the preferred construction material. However, overexploitation of natural resources and environmental crises are linked to concrete production. While waste concrete is abundant, challenges remain in its full recycling, especially concerning fine fractions.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Construction & Building Technology
Huixia Wu et al.
Summary: This study investigates the properties of green mortar containing different waste concrete-brick powder (WCBP). The results show that WCBP has certain pozzolanic activity and good filler effect, with the waste brick powder having superior activity compared to the waste concrete powder. Mixing WCBP decreases the fluidity and prolongs the setting time of the mortar. Incorporating waste brick powder refines the pore size of the mortar, while mixing waste concrete powder enlarges the pore size. The mechanical strength and water absorption resistance of the mortar generally decrease with WCBP addition, with a linear relationship between the WCBP replacement level and strength of the mortar. Increasing the proportion of waste brick powder content improves the mechanical strength and water absorption resistance of the WCBP mortar. Optimizing the WCBP component, replacement ratio, and particle size can prepare WCBP mortar with satisfactory properties.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Yuan Jiang et al.
Summary: This study investigates the properties of cement mortar with recycled concrete powder (RCP) as sand replacement. The results show that incorporating a proper amount of RCP can enhance the sustainability of mortars without compromising their mechanical properties. When the replacement ratio reaches a certain range, there is almost no or a slightly positive impact on the mechanical properties of mortars.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Raquel Vigil de la Villa Mencia et al.
Summary: This study aimed to investigate the synergies in a mixed solidification material containing waste concrete and glass in cement paste. The results showed that the reaction kinetics in the cement paste were influenced by the type of recycled concrete and the glass content.
Article
Construction & Building Technology
Hui Liu et al.
Summary: This paper investigates the repair effect of accelerated carbonation treatment on repeatedly recycled coarse aggregate (RRCA) and evaluates the properties of carbonated repeatedly recycled aggregate concrete (C-RRAC). The results show that accelerated carbonation treatment can effectively repair the coupling damage of high stress and freeze-thaw in RRCA. The quality of C-RRCA is improved and can satisfy the 100-year design service life of concrete structures. The study demonstrates the feasibility of recycling waste or failed RC in high stress and freeze-thaw environment for reuse.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Review
Engineering, Chemical
Linkun Li et al.
Summary: This paper discusses the application of mineral carbonation in the recycling of construction and demolition wastes for building materials. It covers the improvement of concrete aggregate properties through mineral carbonation and the injection of CO2 into hardened cement powder. The reaction mechanism, influencing factors, product performance, and application of mineralization in decarbonation concrete production are also discussed. The paper concludes with future prospects for CO2 mineralization in the recycling of construction and demolition wastes for building materials.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Materials Science, Textiles
Rosalie C. Mendoza et al.
Summary: The study found that adding keratin fibers to cement significantly increased the setting time, possibly by blocking hydration sites or preventing cement crystallization. This suggests that keratin fibers may have a retarding effect on cement curing.
JOURNAL OF NATURAL FIBERS
(2021)
Article
Engineering, Civil
Hamideh Mehdizadeh et al.
Summary: This study investigated the effects of CO2 treatment, particle size, and cement replacement content on the physical properties and microstructure of blended cement paste. The results indicated that carbonation can improve flowability and reduce porosity, while decreasing particle size led to higher compressive strength of the cement paste.
CANADIAN JOURNAL OF CIVIL ENGINEERING
(2021)
Article
Construction & Building Technology
Huixia Wu et al.
Summary: The study reveals that thermally-modified waste concrete powder is superior in terms of recycling, improving the properties and shrinkage resistance of recycled mortar.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Review
Construction & Building Technology
Dehui Wang et al.
Summary: The degradation of FRP bars in SWSSC is primarily influenced by water molecules, hydroxide ions, and chloride ions, with high temperature and stress also accelerating the degradation process. The presence of chloride ions can accelerate the hydration of cement, improving the early-age properties of SWSSC.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2021)
Article
Construction & Building Technology
Stefano Silva et al.
Summary: An extensive experimental study was conducted to investigate the durability performance of concrete made with recycled coarse aggregates from multiple recycling cycles. The results show that as the number of recycling cycles increases, the properties of the recycled coarse aggregates decrease, leading to poorer durability and shrinkage performance of the resulting concrete. Moreover, the decrease in performance tends to slow down with the increase of recycling cycles, showing an asymptotic behavior.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Zhiming Ma et al.
Summary: This study found that the water absorption of RCA from fire-damaged concrete is higher and the properties of concrete decrease as RCA incorporates. Additionally, the activity indexes of RCP from fire-damaged concrete are higher than ordinary RCP, and the properties of concrete incorporating RCP from fire-damaged concrete are better than those of concrete incorporating ordinary RCP.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Multidisciplinary
Hui Liu et al.
Summary: The study showed that the carbonation depth of repeatedly recycled aggregate concrete (RRAC) subjected to freeze-thaw cycles is higher than that in non-freeze-thaw conditions, due to freeze-thaw damages creating porous and cracked internal structures. As replacement rate or recycling number increased, RRAC exhibited more severe freeze-thaw damage and poorer carbonation resistance, attributed to the deteriorating quality of recycled concrete aggregate (RRCA). However, a low replacement rate of RRCA may improve carbonation resistance durability of multiple recycling RAC.
APPLIED SCIENCES-BASEL
(2021)
Article
Construction & Building Technology
Tao Meng et al.
Summary: This study analysed the effects of mechanical, chemical, or nano activation on the compressive strength and microstructure of cement pastes with Hybrid Recycled Powder (HRP). It was found that chemical activation had the greatest impact on the hydration degree of cements, leading to increased compressive strength of the cement pastes. These findings suggest a useful combined activation method for HRP, contributing to its potential application possibilities.
CEMENT & CONCRETE COMPOSITES
(2021)
Review
Green & Sustainable Science & Technology
Jeonghyun Kim
Summary: Construction and demolition waste in South Korea accounts for half of annual waste, and is expected to increase due to outdated structures and reconstructions. Limited land area and mountainous terrain restrict landfilling, making recycling of construction waste urgent. Stakeholders in South Korea are making efforts to practically use construction waste, which can serve as valuable examples for countries lacking waste management systems.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2021)
Article
Construction & Building Technology
Huixia Wu et al.
Summary: The study found that using recycled materials can decrease the compressive strength and increase water transport in cementitious composites, while mixing with mineral admixtures can reduce water transport and slightly increase compressive strength.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Thermodynamics
Aline de Souza Oliveira et al.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2020)
Article
Green & Sustainable Science & Technology
C. Thomas et al.
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Construction & Building Technology
Maciej Zajac et al.
CEMENT AND CONCRETE RESEARCH
(2020)
Article
Multidisciplinary Sciences
Jan Skocek et al.
SCIENTIFIC REPORTS
(2020)
Article
Construction & Building Technology
Guo Aofei et al.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2020)
Article
Construction & Building Technology
Pinghua Zhu et al.
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Chemistry, Physical
Natnael Shiferaw et al.
Article
Construction & Building Technology
C. Thomas et al.
CONSTRUCTION AND BUILDING MATERIALS
(2018)
Article
Green & Sustainable Science & Technology
Jianzhuang Xiao et al.
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Green & Sustainable Science & Technology
Elijah Adesanya et al.
JOURNAL OF CLEANER PRODUCTION
(2018)
Article
Construction & Building Technology
Vilson Abreu et al.
CONSTRUCTION AND BUILDING MATERIALS
(2018)
Article
Construction & Building Technology
Angel Salesa et al.
CONSTRUCTION AND BUILDING MATERIALS
(2017)
Article
Construction & Building Technology
Yong-Jic Kim
CONSTRUCTION AND BUILDING MATERIALS
(2017)
Article
Construction & Building Technology
G. V. P. Bhagath Singh et al.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2016)
Article
Construction & Building Technology
R. Snellings et al.
CEMENT AND CONCRETE RESEARCH
(2014)
Article
Construction & Building Technology
Sumaiya Binte Huda et al.
CONSTRUCTION AND BUILDING MATERIALS
(2014)
Article
Engineering, Multidisciplinary
Izabela Hager
Article
Materials Science, Multidisciplinary
Ana Paula Moreno Trigo et al.
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2014)
Article
Construction & Building Technology
Chee Ban Cheah et al.
CONSTRUCTION AND BUILDING MATERIALS
(2012)
Article
Construction & Building Technology
Yong Jic Kim et al.
CONSTRUCTION AND BUILDING MATERIALS
(2012)
Article
Construction & Building Technology
Rikard Ylmen et al.
CEMENT AND CONCRETE RESEARCH
(2009)
