4.7 Article

An alkali-responsive mineral self-healing agent with mechanical property enhancement for cementitious composites

Related references

Note: Only part of the references are listed.
Article Chemistry, Applied

Preparation of intelligent corrosion resistant coatings based on pH-responsive silica nanocontainers

Yulu Li et al.

Summary: This study introduces a method for synthesizing smart silica nanoparticles loaded with 2-mercapto-benzothiazole and embedded in composite organosilane coatings to prevent carbon steel corrosion. The mechanically stabilized silica nanoparticles show characteristics of large specific surface area, narrow pore size distribution, and large pore volume, allowing for sufficient loading of the corrosion inhibitor. Furthermore, smart nano-containers are prepared using a layer-by-layer self-assembly technique to encapsulate the corrosion inhibitor. The addition of smart silica nanoparticles improves the corrosion resistance of the coating, simplifying the synthesis process of nanocontainers and opening up new prospects for active anticorrosion.

MICROPOROUS AND MESOPOROUS MATERIALS (2023)

Article Construction & Building Technology

Relationship between fractal feature and compressive strength of fly ash-cement composite cementitious materials

Xiao Han et al.

Summary: The microscopic pore structure and compressive strength of fly ash-cement composite cementitious materials were measured at 20 degrees C and 60 degrees C using mercury intrusion porosimetry and compressive strength test. The fractal dimensions of each specimen were calculated and the relationship between fractal dimension and pore structure parameters were analyzed. A mathematical model was established to characterize the relationship between pore structure and compressive strength. The research results showed that the fractal dimension can directly reflect the relationship between compressive strength and pore structure.

CEMENT & CONCRETE COMPOSITES (2023)

Article Engineering, Multidisciplinary

Promoting osseointegration of titanium by pH-responsive releasing of H2S and optimizing polarization time for macrophages

Jinxiu Yu et al.

Summary: In this study, a functionalized titanium implant was developed by incorporating H2S donors into Ti nanotubes and coating with chitosan/gelatin multilayers to enhance osteointegration. By optimizing the polarization regulation of M1 to M2 macrophages, the phagocytosis and neovascularization functions of M1 macrophages can be maintained, while the anti-inflammatory response can be improved by M2 macrophages polarization. The immunomodulation of macrophages leads to efficient osteogenic differentiation of MSCs, promoting neovascularization and osteogenesis around the implants.

COMPOSITES PART B-ENGINEERING (2023)

Article Engineering, Multidisciplinary

Autogenously self-healable cementitious composite incorporating autolytic mineral microspheres: Hydration regulation and structural alteration

Qiaomu Zheng et al.

Summary: This study proposes a new insight into autolytic mineral self-healing strategies for cementitious materials. The self-healing performance of cementitious composite was enhanced by the autolytic mineral microsphere (AMM) that regulated the hydration evolution. The AMM could steadily heal cracks and restore the flexural property of the fractured structure, but the substitution of cement clinker by calcium oxide in AMM led to volume instability and strength decrease over a long-term secondary hydration.

COMPOSITES PART B-ENGINEERING (2023)

Article Chemistry, Physical

Natrium Diacid Phosphate-Manganese-Lead Vitroceramics Obtained from Spent Electrodes

Denisa Cuibus et al.

Summary: Infrared (IR), ultraviolet-visible (UV-Vis) and electron paramagnetic resonance (EPR) spectroscopies were used to study the structural modifications of NaH2PO4-MnO2-PbO2-Pb vitroceramics as potential electrode materials. The electrochemical performances of NaH2PO4-MnO2-PbO2-Pb materials were investigated through cyclic voltammetry measurements. The results indicate that doping with a suitable content of MnO2 and NaH2PO4 can eliminate hydrogen evolution reactions and partially desulfurize the anodic and cathodic plates of spent lead acid batteries.

MATERIALS (2023)

Article Engineering, Multidisciplinary

Copper-catalyzed pyrolysis of halloysites@polyphosphazene for efficient carbonization and smoke suppression

Jing Hong et al.

Summary: The study showed that coating polyphosphazenes on halloysite nanotubes and adding copper nanoparticles can effectively enhance flame retardancy and smoke suppression for epoxy resin.

COMPOSITES PART B-ENGINEERING (2022)

Article Construction & Building Technology

Performance and mechanisms of stimulated self-healing in cement-based composites exposed to saline environments

Caihong Xue

Summary: This study investigates the performance and mechanisms of stimulated autogenous self-healing in cement-based composites with the addition of crystalline admixtures (CAs) exposed to different saline solutions. The results show that the stimulated self-healing capacity strongly depends on the exposure environment, and the correlation between crack closure and durability recovery suggests the need for a performance-recovery-based assessment method. Furthermore, the type of CAs significantly affects the mechanisms of stimulated self-healing.

CEMENT & CONCRETE COMPOSITES (2022)

Article Construction & Building Technology

A new application of fluid loss agent in enhancing autogenous healing ability and improving mechanical properties of oil well cement

Ming Liu et al.

Summary: Enhanced autogenous healing using a cement-polymer composite additive (CPCA) was found to improve the durability and sustainability of cementitious materials. The addition of CPCA-4 improved the compressive strength of hardened cement and enhanced the autogenous healing effectiveness of the matrix.

CEMENT & CONCRETE COMPOSITES (2022)

Article Construction & Building Technology

Pathways towards sustainable concrete

D. Coffetti et al.

Summary: This paper discusses various alternative strategies to improve the sustainability of concrete, including applying the latest technologies to manufacture traditional Portland cement, substituting traditional constituents with alternative binders, using recycled aggregates and non-drinking water, and developing high-durability/high-performance mixtures. The paper also highlights the importance of upgrading existing standards and educating designers, researchers, and contractors to promote the development and diffusion of new concrete technologies. It proposes a new sustainability index for mortars and concretes manufactured with negative carbon footprint materials.

CEMENT AND CONCRETE RESEARCH (2022)

Article Materials Science, Ceramics

Multifunctional cementitious composites with integrated self-sensing and self-healing capacities using carbon black and slaked lime

Wenkui Dong et al.

Summary: This study develops multifunctional cementitious composites with integrated self-sensing and self-healing capacities by incorporating conductive carbon black and CB-encapsulated slaked lime. The stress sensing capacity performs well with compressive stress, and autogenous healing performances significantly improve with increased SL content. Healing efficiency is affected by crack width and SL dispersion, with smaller cracks with SL being more easily healed.

CERAMICS INTERNATIONAL (2022)

Article Construction & Building Technology

Employing ultrasonic wave as a novel trigger of microcapsule self-healing cementitious materials

Na Xu et al.

Summary: The study successfully utilized ultrasonic waves as a trigger to coordinate microcapsule-induced self-healing activities in concrete, resulting in a 2-4 times higher strength repair rate compared to mechanical triggering. Additionally, the ultrasonic wave demonstrated a better triggering effect on the microcapsules, showing great potential for promoting the application of microcapsule technologies in cementitious materials.

CEMENT & CONCRETE COMPOSITES (2021)

Article Construction & Building Technology

Effect of chloride ingress on self-healing recovery of smart cementitious composite incorporating crystalline admixture and MgO expansive agent

Caihong Xue et al.

Summary: This study investigated the impact of chloride environment on the self-healing performance of pre-cracked cementitious composite. It was found that chloride ions changed the mineralogy of self-healing products, affecting crack closure ratio and mechanical strength recovery. Carbonation of crystals formed in cracks was accelerated with volume expansion, achieving rapid crack sealing but contributing little to mechanical performance recovery.

CEMENT AND CONCRETE RESEARCH (2021)

Article Construction & Building Technology

Microencapsulation and evaluation of styrene maleic anhydride/epoxy for mechanical triggering self-healing of cementitious materials

Wenting Li et al.

Summary: Capsule-based self-healing of cementitious materials using mechanical triggering microcapsules has shown promising results in achieving cracks healing, with the encapsulation ability of SMA/gelatin demonstrated. Various preparation parameters were investigated to optimize the microcapsules morphology and trigger sensitivity under crack formation. The self-healing functionality of the developed microcapsules was validated in paste according to in situ Acoustic Emission measurement.

CEMENT & CONCRETE COMPOSITES (2021)

Article Engineering, Multidisciplinary

Temperature adaptive microcapsules for self-healing cementitious materials

Jun Ren et al.

Summary: The concept of temperature-adaptive microcapsule (TAM) was proposed to address the brittleness issue of microcapsule shell, and a series of TAM with different transition temperatures were successfully prepared. The performance of TAM embedded in cementitious paste showed a significant reduction in breakage rate and an increment in recovery rate at an elevated mixing temperature compared to lower mixing temperature. This work demonstrates a promising approach to enhance the performance of microcapsules in self-healing cementitious materials.

COMPOSITES PART B-ENGINEERING (2021)

Article Engineering, Multidisciplinary

Crack self-healing in bio-green concrete

Lei V. Zhang et al.

Summary: The study investigates the potential of using S. pasteurii bacteria for crack self-healing in eco-efficient concrete. Results show that concrete incorporating bacteria can completely heal cracks within 90 days, while control specimens did not show any self-healing. SEM-EDS combined with Raman spectroscopy suggested that calcite was the dominant self-healing product in the concrete.

COMPOSITES PART B-ENGINEERING (2021)

Article Construction & Building Technology

Preparation and application of novel microcapsules ruptured by microwave for self-healing concrete

Ying Li et al.

Summary: Novel Microcapsules Raptured by Microwave (NMRM) with unique core-shell structure for self-healing concrete were successfully produced in this research. The microcapsules with 5% graphite can be quickly triggered to rupture under microwave irradiation, and possess high self-healing efficiency for pre-damaged concrete. The purpose of this investigation is to provide a new trigger for microcapsule rupture on the specific location with cracks at the right time for self-healing concrete.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Green & Sustainable Science & Technology

Co-disposal of magnesium slag and high-calcium fly ash as cementitious materials in backfill

Lang Liu et al.

Summary: This study proposed a novel idea to recycle magnesium slag and high-calcium fly ash into cementitious materials for producing paste backfill materials used in the mining industry. The addition of fly ash improved the rheological and mechanical properties of the backfill materials. The study demonstrated the feasibility of co-disposal of magnesium slag and fly ash for promoting cleaner mineral production in the mining industry.

JOURNAL OF CLEANER PRODUCTION (2021)

Article Materials Science, Multidisciplinary

Integrated self-sensing and self-healing cementitious composite with microencapsulation of nano-carbon black and slaked lime

Wenkui Dong et al.

Summary: This study successfully developed multifunctional cementitious composites with self-sensing and self-healing properties by encapsulating nano-carbon black and slaked lime. The results show that the composite has high crack healing efficiency and stable self-sensing capacity.

MATERIALS LETTERS (2021)

Review Construction & Building Technology

Critical Aspects in the Development and Integration of Encapsulated Healing Agents in Cement and Concrete

Stamatoula Papaioannou et al.

Summary: This study provides a critical overview of the development of encapsulated healing agents in self-healing cement composites, emphasizing the key factors that impact their performance and functionality. By categorizing and comparing the characteristics of different encapsulated healing agents, it offers important insights to facilitate the practical application of encapsulated healing agents.

JOURNAL OF ADVANCED CONCRETE TECHNOLOGY (2021)

Article Construction & Building Technology

Self-healing concrete incorporating mineral additives and encapsulated lightweight aggregates: Preparation and application

Xianfeng Wang et al.

Summary: Incorporating minerals and encapsulated lightweight aggregates can enhance the self-healing efficiency of concrete by improving mechanical properties and retention ability of carbonate. The study demonstrated increased strength and chloride migration resistance in concrete with mineral additive and encapsulated lightweight aggregates. Additionally, the incorporation of these materials significantly improved healing efficiency and resistance against external factors.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Construction & Building Technology

Fractal characteristics of pore structure of hybrid Basalt-Polypropylene fibre-reinforced concrete

Dan Li et al.

CEMENT & CONCRETE COMPOSITES (2020)

Article Biochemistry & Molecular Biology

Three-ply biocompatible pH-responsive nanocarriers based on HNT sandwiched by chitosan/pectin layers for controlled release of phenytoin sodium

Fatemeh Jamshidzadeh et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

Article Construction & Building Technology

Influence of halloysite nanotube on hydration products and mechanical properties of oil well cement slurries with nano-silica

Huiting Liu et al.

CONSTRUCTION AND BUILDING MATERIALS (2020)

Article Green & Sustainable Science & Technology

Carbon emissions reduction and financial effects of a cap and tax system on an operating supply chain in the cement sector

Nora Cadavid-Giraldo et al.

JOURNAL OF CLEANER PRODUCTION (2020)

Article Construction & Building Technology

Self-healing efficiency and crack closure of smart cementitious composite with crystalline admixture and structural polyurethane

Caihong Xue et al.

CONSTRUCTION AND BUILDING MATERIALS (2020)

Article Construction & Building Technology

Adsorption behavior and mechanism of a copolymer used as fluid loss additive in oil well cement

Di Chen et al.

CONSTRUCTION AND BUILDING MATERIALS (2019)

Article Materials Science, Ceramics

A novel synthetic approach to low-crystallinity calcium deficient hydroxyapatite

Inga Grigoraviciute-Puroniene et al.

CERAMICS INTERNATIONAL (2019)

Article Construction & Building Technology

Preparation and characterization of autolytic mineral microsphere for self-healing cementitious materials

Zhengwu Jiang et al.

CEMENT & CONCRETE COMPOSITES (2019)

Article Construction & Building Technology

A novel bio-inspired bone-mimic self-healing cement paste based on hydroxyapatite formation

Qiu Li et al.

CEMENT & CONCRETE COMPOSITES (2019)

Article Construction & Building Technology

Visualization and quantification of crack self-healing in cement-based materials incorporating different minerals

Ahmed R. Suleiman et al.

CEMENT & CONCRETE COMPOSITES (2019)

Article Nanoscience & Nanotechnology

An Environment-Friendly Fertilizer Prepared by Layer-by-Layer Self-Assembly for pH-Responsive Nutrient Release

Tao Li et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

Article Construction & Building Technology

A self-healing cementitious composite with mineral admixtures and built-in carbonate

Xianfeng Wang et al.

CEMENT & CONCRETE COMPOSITES (2018)

Review Biochemistry & Molecular Biology

Biomimetic Layer-by-Layer Self-Assembly of Nanofilms, Nanocoatings, and 3D Scaffolds for Tissue Engineering

Shichao Zhang et al.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2018)

Article Materials Science, Multidisciplinary

Raman, FT-IR and XRD study of bovine bone mineral and carbonated apatites with different carbonate levels

Mengmeng Wang et al.

MATERIALS LETTERS (2018)

Review Chemistry, Multidisciplinary

A Review of Self-Healing Concrete for Damage Management of Structures

Nele De Belie et al.

ADVANCED MATERIALS INTERFACES (2018)

Article Construction & Building Technology

Effect of ion chelating agent on self-healing performance of Cement-based materials

Yagang Zha et al.

CONSTRUCTION AND BUILDING MATERIALS (2018)

Review Geosciences, Multidisciplinary

Global CO2 emissions from cement production

Robbie M. Andrew

EARTH SYSTEM SCIENCE DATA (2018)

Review Materials Science, Ceramics

Substituted hydroxyapatites for biomedical applications: A review

Monika Supova

CERAMICS INTERNATIONAL (2015)

Article Construction & Building Technology

Characterization and quantification of self-healing behaviors of microcracks due to further hydration in cement paste

Haoliang Huang et al.

CEMENT AND CONCRETE RESEARCH (2013)

Article Construction & Building Technology

Effect of halloysite nanoclay on mechanical properties, thermal behavior and microstructure of cement mortars

Nima Farzadnia et al.

CEMENT AND CONCRETE RESEARCH (2013)

Article Chemistry, Multidisciplinary

Enlargement of Halloysite Clay Nanotube Lumen by Selective Etching of Aluminum Oxide

Elshad Abdullayev et al.

ACS NANO (2012)

Article Chemistry, Multidisciplinary

Counterions and water in polyelectrolyte multilayers: A tale of two polycations

Jad A. Jaber et al.

LANGMUIR (2007)

Article Engineering, Biomedical

Biomimetic synthesis of calcium-deficient hydroxyapatite in a natural hydrogel

Stacy A. Hutchens et al.

BIOMATERIALS (2006)

Article Engineering, Biomedical

Novel synthesis and characterization of an AB-type carbonate-substituted hydroxyapatite

IR Gibson et al.

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH (2002)