scholarly journals Fresh and Hardened Properties of Engineered Geopolymer Composite with MgO

2020 ◽  
Author(s):  
M. A. Hossain ◽  
K. M. A Hossain ◽  
T. Manzur ◽  
M. J. Hasan ◽  
D. Sood
Keyword(s):  
Hardened Properties

Green Concrete made with Recycled Concrete Aggregates: Fresh and Hardened Properties

2018 ◽  
Author(s):  
Driton R. Kryeziu ◽  
Armend Muja ◽  
Fisnik Kadiu ◽  
Visar Krelani ◽  
Besian Sinani ◽  
...  
Keyword(s):  
Recycled Concrete ◽  
Green Concrete ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates ◽  
Hardened Properties

Fresh and hardened properties of geopolymer binder using ground high magnesium ferronickel slag with fly ash

2021 ◽  
Vol 272 ◽  
pp. 121877
Author(s):  
Jhutan Chandra Kuri ◽  
Md. Nabi Newaz Khan ◽  
Prabir Kumar Sarker
Keyword(s):  
Fly Ash ◽  
Ferronickel Slag ◽  
Hardened Properties ◽  
Geopolymer Binder

Effects of pre-soaked super absorbent polymers on fresh and hardened properties of self-consolidating lightweight concrete

2016 ◽  
Vol 113 ◽  
pp. 215-220 ◽  
Author(s):  
Hessam AzariJafari ◽  
Ali Kazemian ◽  
Motahareh Rahimi ◽  
Ammar Yahia
Keyword(s):  
Lightweight Concrete ◽  
Hardened Properties

scholarly journals The influence of sulfate availability on rheology of fresh cement paste

2020 ◽  
Vol 30 (1) ◽  
pp. 54-63
Author(s):  
Willy Mbasha ◽  
Rainer Haldenwang ◽  
Irina Masalova
Keyword(s):  
Yield Stress ◽  
Calcium Sulfate ◽  
Chemical Properties ◽  
Plastic Viscosity ◽  
Cement Clinker ◽  
Flow Properties ◽  
Cement Pastes ◽  
Hardened Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

AbstractNatural gypsum can degenerate into hemihydrate during cement clinker grinding which changes the physical and chemical properties of cement hydration, affecting therefore the fresh and hardened properties of cement based materials. Cement systems containing a constant total amount of calcium sulfate (4%) with relative proportions of hemihydrate and natural gypsum were considered. Rheological measurements were executed on an Anton Paar MCR51 rheometer to evaluate the flow properties of cement pastes. Results show that, the yield stress and the plastic viscosity of cement pastes were affected when the degeneration of natural gypsum exceeded 50%. Above this concentration, the yield stress remarkably increased and a variation in plastic viscosity of about 50% was observed. Using TG-DSC techniques, it was shown that, the amount of formed ettringite could not explain these rheological changes. However, centrifugational packing and SEM-SE measurements confirmed that, more than the amount of ettringite precipitated, ettringite morphology plays a major role in controlling the yield stress and plastic viscosity of fresh cement pastes.

3D-printable engineered cementitious composites (3DP-ECC): Fresh and hardened properties

2021 ◽  
Vol 143 ◽  
pp. 106388
Author(s):  
Kequan Yu ◽  
Wes McGee ◽  
Tsz Yan Ng ◽  
He Zhu ◽  
Victor C. Li
Keyword(s):  
Cementitious Composites ◽  
Engineered Cementitious Composites ◽  
Hardened Properties
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