Use of Sustainable Materials in Self-Healing Concrete

3D printing of a self-healing nanocomposite for stretchable sensors

Journal of Materials Chemistry C ◽

10.1039/c8tc02883d ◽

2018 ◽

Vol 6 (45) ◽

pp. 12180-12186 ◽

Cited By ~ 20

Author(s):

Qinghua Wu ◽

Shibo Zou ◽

Frédérick P. Gosselin ◽

Daniel Therriault ◽

Marie-Claude Heuzey

Keyword(s):

3D Printing ◽

Wearable Sensors ◽

Soft Robotics ◽

Self Healing ◽

Biomedical Devices ◽

Sustainable Materials ◽

Stretchable Sensors

The design of self-healable and stretchable devices from sustainable materials is increasingly attractive for various applications such as soft robotics, wearable sensors, and biomedical devices.

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Bacterial Concrete- A Sustainable Solution for Concrete Maintenance

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.k1046.09811s19 ◽

2019 ◽

Vol 8 (11S) ◽

pp. 227-232 ◽

Cited By ~ 1

Keyword(s):

Concrete Slab ◽

Research Work ◽

Construction Materials ◽

Self Healing ◽

Conventional Concrete ◽

Sealing Capacity ◽

Sustainable Materials ◽

Positive Results ◽

Bacterial Concrete

Cracks formed in concrete are inescapable and are one of the major reasons for the weaknesses of concrete. Majorly water along with other components penetrate through these cracks resulting in corrosion thereby reducing the strength of concrete directly hampering its life. The objective of present research work is to promote sustainable development and to identify sustainable materials for treating cracks formed in concrete. Various researches have shown positive results by adding calcite precipitating bacteria in concrete, also known as bacterial concrete or self-healing concrete. This research is dedicated to check the suitability of mixing these self-healing calcite depositing bacteria with concrete in order to increase the compressive strength of concrete, reduce its permeability and seepage of water by bio-mineralization process. Substantial increase in strength is observed in concrete specimens when casted with bacterial solution. The study has devised methods or ways to test the effect of use of bacteria in concrete. Tests on concrete slab with various combinations of bacterial solution as well as varied percentage of bacterial solution have been conducted. Use of bacterial solution for surface application on slab to test the sealing capacity is done. Results have been compared with conventional concrete. Biological modifications of construction materials are the need of the hour for strength improvement and long term sustainability. The present study proposes a promising sustainable repair method for concrete.

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Sugarcane Bagasse-Derived Activated Carbon- (AC-) Epoxy Vitrimer Biocomposite: Thermomechanical and Self-Healing Performance

International Journal of Polymer Science ◽

10.1155/2021/5561755 ◽

2021 ◽

Vol 2021 ◽

pp. 1-7

Author(s):

Balaji Krishnakumar ◽

Debajyoti Bose ◽

Manjeet Singh ◽

R. V. Siva Prasanna Sanka ◽

Velidi V. S. S. Gurunadh ◽

...

Keyword(s):

Mechanical Properties ◽

Activated Carbon ◽

Sugarcane Bagasse ◽

Epoxy Matrix ◽

The Self ◽

Self Healing ◽

Thermal And Mechanical Properties ◽

Healing Efficiency ◽

Sustainable Materials ◽

Lower Temperature

Vitrimeric materials have emerged as fascinating and sustainable materials owing to their malleability, reprocessability, and recyclability. Sustainable vitrimeric materials can be prepared by reinforcing polymeric matrix with bioderived fillers. In the current work, a sustainable vitrimer is prepared by incorporating biomass-derived activated carbon (AC) filler into the epoxy matrix to achieve enhanced thermal and mechanical properties. Thus, prepared biocomposite vitrimers demonstrate a lower-temperature self-healing (70°C for 5 min) via disulfide exchanges, compared to the pristine epoxy vitrimers (80°C for 5 min). Significantly, the self-healing performances have been studied extensively with the flexural studies; and changes in material healing efficiency have been demonstrated based on the observed changes in modulus.

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Autonomous self-healing polyisoprene elastomers with high modulus and good toughness based on the synergy of dynamic ionic crosslinks and highly disordered crystals

Polymer Chemistry ◽

10.1039/d0py01034k ◽

2020 ◽

Vol 11 (41) ◽

pp. 6549-6558

Author(s):

Yohei Miwa ◽

Mayu Yamada ◽

Yu Shinke ◽

Shoichi Kutsumizu

Keyword(s):

Mechanical Properties ◽

Room Temperature ◽

Self Healing ◽

High Modulus ◽

Disordered Crystals ◽

Ionic Crosslinks

We designed a novel polyisoprene elastomer with high mechanical properties and autonomous self-healing capability at room temperature facilitated by the coexistence of dynamic ionic crosslinks and crystalline components that slowly reassembled.

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