Influence of Crystalline Admixtures and Their Synergetic Combinations with Other Constituents on Autonomous Healing in Cracked Concrete—A Review

Yuanzhu, Zhang; Wang, Qianqian; Ding, Zhi

doi:10.3390/ma15020440

Cited by 9 publications

(9 citation statements)

References 99 publications

(262 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been proven that using LWAs as carriers for healing agents in self-healing concrete is valid; damaged concrete was repaired with LWAs [ 12 , 13 , 14 , 15 , 16 ]. Stuckrath et al [ 12 ] impregnated LWAs with chemical and biological solutions as healing agents in concrete mixtures.…”

Section: Components and Mechanisms Of Lightweight Aggregate Self-heal...mentioning

confidence: 99%

“…Stuckrath et al [ 12 ] impregnated LWAs with chemical and biological solutions as healing agents in concrete mixtures. Then, a sulfoaluminate-based expansion agent, crystalline admixtures, and calcium hydrogen phosphate as a part of the cementitious material were adopted as the healing components, and the porous ceramsite was applied as the carrier of the sodium carbonate solution to study the self-healing potential of LWSHC [ 13 , 14 ]. Huynh et al [ 15 ] adopted LWAs as protective carriers for bacillus subtilis natto to evaluate the self-healing ability of LWSHC by its biomineralization.…”

Section: Components and Mechanisms Of Lightweight Aggregate Self-heal...mentioning

confidence: 99%

See 1 more Smart Citation

A Review of Lightweight Self-Healing Concrete

Feng

Zhou

2022

Materials

View full text Add to dashboard Cite

Cementitious composites often crack because of their low tensile strength. The ability of self-healing cementitious composite to automatically repair cracks has attracted widespread attention. Lightweight aggregate (LWA) has a low density and a high porosity which can provide storage space for a healing agent. The healing mechanisms and healing compositions of lightweight self-healing concrete (LWSHC) have been summarized in this research. The workability, compressive strength, crack repairing, and durability of LWSHC performance is also illustrated. A LWA with interconnected pores and a high strength should be integrated into LWSHC to increase the crack closure rate and mechanical properties. Expanded perlite is the most suitable LWA carrier for bioremediation. The chemical healing agents are better than the biological healing agents at present since the biological healing agents have more negative effects. A sodium silicate solution is a good choice as a chemical healing agent. Vacuum conditions, high-temperature processing, and the use of coating technologies on LWAs can improve the healing effect of LWSHC. The addition of fibers also enhance the self-healing ability of LWSHC. Further, the use of numerical simulation supports the healing performance of LWSHC. The goal of this research is to investigate the most appropriate component of LWSHC to ensure a high crack closure rate, strength healing ratio, and great durability while being lightweight. It can then be adopted in high-rise and large-span concrete structures to extend the service life.

show abstract

Section: Components and Mechanisms Of Lightweight Aggregate Self-heal...mentioning

confidence: 99%

Section: Components and Mechanisms Of Lightweight Aggregate Self-heal...mentioning

confidence: 99%

A Review of Lightweight Self-Healing Concrete

Feng

Zhou

2022

Materials

View full text Add to dashboard Cite

show abstract

“…In the group of articles that present the results of the experimental research of new materials, one can distinguish the work by [ 1 ]. The authors present the results of the 3D printing material with SH properties [ 2 ]. Materials with these properties are also presented in [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the SH properties of building materials are especially important in terms of their durability [ 11 ]. In [ 12 , 13 ], a review of SH concretes (SHC) is presented, and in [ 2 ], a review of crystalline admixtures and their impact on the SH of concrete is presented. An improvement in SH abilities and a simultaneous reduction in shrinkage using microcapsules is presented in [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Self-Healing Mechanical Properties of Selected Roofing Felts

et al. 2023

View full text Add to dashboard Cite

In this work, roof felts are considered. Special attention is paid to the mechanical properties and self-healing (SH) phenomena under elevated temperatures. The results of the heating and strength tests for the entire range of material work, from the first load to sample breaking, are shown with respect to the angle of reinforcement relative to the longitudinal axis of the sample and different ways of breaking the continuity of the material. The influence that the material thickness and modifiers used for the production of the base material have on the obtained results was also pointed out. The meaningful SH strength is reported—from 5% up to 20% of the strength of the undamaged material—which, in perspective, can provide comprehensive knowledge of the optimal use of roofing felts and its proper mathematical modeling.

show abstract

“…The reaction between aggressive agents in the atmosphere (rain, snow, fog) and reinforcement, leads to the oxidation of the reinforcement, which can later lead to early loss (partial or total) of its load-bearing capacity. Intervention to deal with and close cracks and micro-cracks is necessary, otherwise failure of the structure can occur [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Research on the production of cement composites with autonomous self-healing performance

Panfil Toader,

Mircea,

Hegyi

et al. 2022

MATEC Web Conf.

View full text Add to dashboard Cite

In a time when the attention paid to identifying the possibilities of reducing problems due to urban pollution is increasing, the construction industry has a lot to gain if it aligns itself with the new trends of sustainable development in the field. In this context, the objective of obtaining a concrete with self-healing properties of cracks is more than appropriate, becoming a sustainable alternative for reducing the maintenance costs of transport infrastructure by increasing their operating time and by decreasing the need for the volume of repair and maintenance works, thus indirectly contributing to the reduction of environmental pollution. Preliminary results obtained using a cementitious composite with waterproofing admixture content by mass crystallization are encouraging by identifying the existence of an autonomous healing degree (closure of cracks with average opening 20-40 µm) in a proportion of at least 65% after only 96 hours of exposure in a wet-dry environment, respectively and of at least 96% after 480 hours of conditioning. The degree of novelty and value of this research is mainly due to the approach of this type of composite produced by adapting the general principles to local raw materials, including the use of specific industrial waste and by-products available in Romania (fly ash and limestone slurry).

show abstract

Influence of Crystalline Admixtures and Their Synergetic Combinations with Other Constituents on Autonomous Healing in Cracked Concrete—A Review

Cited by 9 publications

References 99 publications

A Review of Lightweight Self-Healing Concrete

A Review of Lightweight Self-Healing Concrete

Self-Healing Mechanical Properties of Selected Roofing Felts

Research on the production of cement composites with autonomous self-healing performance

Contact Info

Product

Resources

About