Preparation and Characterization of Eco-friendly and Sustainable Building Materials with Encouraging Healing Efficiency

Authors

H. M. Khater Institute of Raw Materials and Processing Technology, Housing And Building National Research Center, Giza, Egypt
A. M. El Nagar nstitute of Raw Materials and Processing Technology, Housing And Building National Research Center, Giza, Egypt
Amr S. Meawad Faculty of Science, Helwan University, Helwan, Egypt

Slag, Steel fiber, Basalt fiber, Damage.

The most widely used building materials worldwide are cement as well as concrete in construction

site, while these materials have well-known phenomenon which is cracking in concrete engineering. Concrete

repairs are foreseeable to enhance its service life and provide additional expenditure separate to the building

cost; so it necessary to seal cracks which occur due to drying shrinkage or exposed to external factors.

Recently, the most promising healing materials that can be applied for concrete repairs are alkali activated

materials which have high efficiency in dealing with crack propagation, while this efficiency can be increased

by immersion in saturated lime solution or using fibers to heal the produced cracks or even suppress the crack

formation. The current work focus on the formation alkali activated materials that exposed to artificial

cracking then immersed in water, saturated lime, and using steel fiber as well as basalt fiber to examine their

capability in healing the produced cracks. Results demonstrates the healing of the formed cracks with most of

the used techniques, while the most promising were those used steel fiber as well as basalt fiber where the

crack propagation were terminated and diminished.

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