Evaluation of self-compacting concrete containing pozzolan (zeolite, metakaolin &amp; silica fume) and polypropylene fiber against sulfate attacks with different PH: an experimental study

Nabighods, Kamyar; Saradar, Ashkan; Mohtasham Moein, Mohammad; Mirgozar Langaroudi, Mir Alimohammad; Byzyka, Juliana; Karakouzian, Moses

doi:10.1007/s41062-023-01309-0

Cited by 9 publications

(1 citation statement)

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“…If the tensile stress exceeds the tensile strength, cracks will appear. These domino-like effects can challenge the durability and more importantly the safety of the structure [176][177][178][179]. The exposure of concrete structures and elements to a temperature higher than 323 Kelvin causes the occurrence of large and disturbing pores in the mortar, which can greatly affect the mechanical, dynamic, and durability characteristics of concrete [180,181].…”

Section: Nanomaterials Performance In Microstructurementioning

confidence: 99%

A Critical Review Examining the Characteristics of Modified Concretes with Different Nanomaterials

Mohtasham Moein,

Rahmati,

Saradar

et al. 2024

Materials

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The movement of the construction industry towards sustainable development has drawn attention to the revision of concrete. In addition to reducing pollution, the use of nano-materials should lead to the provision of higher quality concrete in terms of regulatory items (workability, resistance characteristics, durability characteristics, microstructure). The present study investigates 15 key characteristics of concrete modified with nano-CaCO3, nano-clay, nano-TiO2, and nano-SiO2. The results of the study showed that nanomaterials significantly have a positive effect on the hydration mechanism and the production of more C-S-H gel. The evaluation of resistance characteristics also indicates the promising results of these valuable materials. The durability characteristics of nano-containing concrete showed significant improvement despite high dispersion. Concrete in coastal areas (such as bridges or platforms), concrete exposed to radiation (such as hospitals), concrete exposed to impact load (such as nuclear power plants), and concrete containing recycled aggregate (such as bricks, tiles, ceramics) can be effectively improved by using nanomaterials. It is hoped that the current review paper can provide an effective image and idea for future applied studies by other researchers.

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