Role of Superplasticizer Additives Upon Hydration Process of Cement Pastes

Angelescu, N; Stanciu, Darius; Aguiar, José; Abdelgader, Hakim S.; Bratu, Vasile

doi:10.1515/bsmm-2016-0004

Cited by 3 publications

References 5 publications

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Concretes with Organic Admixtures

Angelescu

Ungureanu

Bratu

2018

Scientific Bulletin of Valahia University - Materials and Mechanics

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The current work is intended to explain the role of some organic admixtures on the hardened structure of refractory concretes with aluminous cement. The influences on the mechanical-structural properties in the normal hardening but in the heating conditions at different temperatures are emphasized, also. These are due to the influence on the hydration process (i.e. the kind of the neoformations and degree of hydration) and implicitly on the size and distribution of structural pores.

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Concretes with Organic Admixtures

Angelescu

Ungureanu

Bratu

2018

Scientific Bulletin of Valahia University - Materials and Mechanics

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Development of Geopolimeric Materials Utilizing Superplasticizer (Sp) and Viscosity Modifying Admixture (VMA) for 3d Printing Building Applications

Rahaman

2023

Preprint

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Recycling of Cement–Wood Board Production Waste into a Low-Strength Cementitious Binder

2022

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Cement is a widely used building material, with more than 4.4 billion metric tons produced in 2021. Unfortunately, the excessive use of cement raises several environmental issues, one of which is the massive amounts of CO2e produced as a by-product. Using recycled materials in the concrete mix is widely employed to solve this problem. A method for minimizing the use of natural cement by substituting it with secondary cementitious material that consists of wood–cement board manufacturing waste has been studied in this paper. The cement in the waste stream was reactivated by a mechanical treatment method—the use of a planetary mill, allowing it to regain its cementitious properties and be used as a binder. Physical and mineralogical analysis of the binder material was performed using X-ray diffraction (XRD), thermogravimetry/differential thermal analysis (TG/DTA) and Brunauer–Emmett–Teller analysis; granulometry and compressive strength tests were also carried out. The results show that the grinding process did not significantly change the mineralogical composition and the specific surface area; it did, however, affect the compressive strength of the samples prepared by using the reactivated binding material; also, the addition of plasticizer to the mix increased compressive strength by 2.5 times. Samples were cured in high-humidity conditions. The optimal water-to-binder (W/B) ratio was found to be 0.7 because of the wood particles that absorb water in their structure. Compressive strength increased as the grinding time increased.

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Role of Superplasticizer Additives Upon Hydration Process of Cement Pastes

Cited by 3 publications

References 5 publications

Concretes with Organic Admixtures

Concretes with Organic Admixtures

Development of Geopolimeric Materials Utilizing Superplasticizer (Sp) and Viscosity Modifying Admixture (VMA) for 3d Printing Building Applications

Recycling of Cement–Wood Board Production Waste into a Low-Strength Cementitious Binder

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