Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Customized price-quality microcrystalline cellulose for developing cementitious composites with improved mechanical properties
Graphical abstract Display Omitted
Highlights Laboratory-produced TMCC is 97 times cheaper than commercial silicified MCC. Combining pre-treatments enabled the use of a customized price-quality MCC. Similar mechanical performance improvements to using a high-price/high-quality MCC. Larger customized price-quality MCC crystals enhanced the mortar's fracture energy. Interactions of MCC pre-treatments required a small amount of superplasticizer.
Abstract The first attempt to synergistically apply different surface treatments made it possible to use a customized price-quality commercial microcrystalline cellulose (MCC) as a mineral admixture to improve the mechanical performance of a cementitious composite. The MCC was pretreated with the silane-based surface modifier tetraethylorthosilicate (TEOS) and dispersed in an aqueous suspension using Pluronic F127 under ultrasonic energy. The improvement results were similar to those already reported in a state-of-the-art review of studies that used costly and better quality MCC, still achieving greater fracture energies. The concomitant use of TMCC + Pluronic F127 required a small amount of superplasticizer.
Customized price-quality microcrystalline cellulose for developing cementitious composites with improved mechanical properties
Graphical abstract Display Omitted
Highlights Laboratory-produced TMCC is 97 times cheaper than commercial silicified MCC. Combining pre-treatments enabled the use of a customized price-quality MCC. Similar mechanical performance improvements to using a high-price/high-quality MCC. Larger customized price-quality MCC crystals enhanced the mortar's fracture energy. Interactions of MCC pre-treatments required a small amount of superplasticizer.
Abstract The first attempt to synergistically apply different surface treatments made it possible to use a customized price-quality commercial microcrystalline cellulose (MCC) as a mineral admixture to improve the mechanical performance of a cementitious composite. The MCC was pretreated with the silane-based surface modifier tetraethylorthosilicate (TEOS) and dispersed in an aqueous suspension using Pluronic F127 under ultrasonic energy. The improvement results were similar to those already reported in a state-of-the-art review of studies that used costly and better quality MCC, still achieving greater fracture energies. The concomitant use of TMCC + Pluronic F127 required a small amount of superplasticizer.
Customized price-quality microcrystalline cellulose for developing cementitious composites with improved mechanical properties
Cabral, Marllon Victor Soares (Autor:in) / Carneiro, Arnaldo Manoel Pereira (Autor:in) / Maior, Rosa Maria Souto (Autor:in) / Marinho, Érika Pinto (Autor:in) / Nóbrega, Ana Cecília Vieira da (Autor:in)
21.06.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
MCC , microcrystalline celulose , TEOS , tetraethylorthosilicate , NCC , cellulose nanocrystals , TMCC , TEOS-modified MCC , SP , superplasticizer , PPO , polypropylene oxide , PEO , polyethylene oxide , CNF , cellulose nanofibrils , Microcrystalline cellulose , Paste , Cement , Additive , Sustainability , Cost
| British Library Online Contents | 2018
Mechanical properties of microcrystalline cellulose
| British Library Online Contents | 2002
Mechanical properties of microcrystalline cellulose
| British Library Online Contents | 2002