Publications by authors named "Hamed Niroumand"

Spraying Bentonite NanoClay as an innovative idea satisfied an urgent need for conservation of historical brick constructions. This research explores the application of Nanotechnology as a Nano-Geotechnics (NaG) and Nano Ground Improvement (NGI) techniques for fortifying the mortar between bricks in historical buildings against some environmental erosive factors. Bentonite Nanoparticles were selected because of their compatibility with mortar.

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Soil stabilization is a technique of improving the geotechnical properties of soils for various engineering applications. However, conventional stabilizers such as cement and lime have some limitations, such as high cost, environmental impact, and durability issues. Therefore, there is a need for alternative and innovative stabilizers that can overcome these challenges.

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Article Synopsis
  • Nano-additives, particularly nano-bentonite, enhance the durability and strength of building materials and untreated soil, referred to as nano soil-improvement (NSI).
  • Research evaluated the effectiveness of micro- and nano-sized bentonite as soil stabilizers by testing different concentrations on soil specimens.
  • Results indicated that 3% nano-bentonite significantly increased unconfined compressive strength (UCS) of soil, outperforming other formulations and untreated specimens, confirming the potential of nano-additives in geotechnical applications.
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Nano soil-improvement is an innovative idea in geotechnical engineering. Nanomaterials are among the newest additives that improve soil properties. Herein, laboratory tests, such as unconfined compressive strength, direct shear test, and initial tests, were conducted to investigate the geotechnical properties of Kelachay clay with micro- and nanosized cement to evaluate its particles in untreated soil and observe changes in the behavioral properties of treated soil compared to those of untreated soil.

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Restoring and protecting historic buildings worldwide are important because heritage buildings are records of the civilizations of various countries. Herein, nanotechnology was used to restore historic adobe walls. According to the Iran Patent and Trademark Office (IRPATENT) 102665, nanomontmorillonite clay has been selected as a natural and compatible material with adobe.

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