scholarly journals Development of a Measuring Procedure of Rheological Behavior for Self Compacting Concrete

2020 ◽  
Vol 18 (6) ◽  
pp. 328-338
Author(s):  
Tarek Naadia ◽  
Youcef Ghernouti ◽  
Djamila Gueciouer
Keyword(s):  
Rheological Behavior ◽  
Self Compacting Concrete ◽  
Measuring Procedure

The effect of measuring procedure on the apparent rheological properties of self-compacting concrete

2002 ◽  
Vol 32 (11) ◽  
pp. 1791-1795 ◽  
Author(s):  
Mette R Geiker ◽  
Mari Brandl ◽  
Lars N Thrane ◽  
Dirch H Bager ◽  
Olafur Wallevik
Keyword(s):  
Rheological Properties ◽  
Self Compacting Concrete ◽  
Measuring Procedure

Fresh and rheological behavior of nano-silica and fly ash blended self-compacting concrete

2015 ◽  
Vol 95 ◽  
pp. 29-44 ◽  
Author(s):  
Erhan Güneyisi ◽  
Mehmet Gesoglu ◽  
Asraa Al-Goody ◽  
Süleyman İpek
Keyword(s):  
Fly Ash ◽  
Rheological Behavior ◽  
Nano Silica ◽  
Self Compacting Concrete

Influence of silica fume and viscosity modifying agent on the mechanical and rheological behavior of self compacting concrete

2015 ◽  
Vol 84 ◽  
pp. 103-110 ◽  
Author(s):  
Mouhcine Benaicha ◽  
Xavier Roguiez ◽  
Olivier Jalbaud ◽  
Yves Burtschell ◽  
Adil Hafidi Alaoui
Keyword(s):  
Silica Fume ◽  
Rheological Behavior ◽  
Self Compacting Concrete ◽  
Modifying Agent

Assessing Rheological Properties of Cement Paste as a First Step in Predicting Robustness of Self-compacting Concrete

2018 ◽  
Vol 69 (7) ◽  
pp. 1733-1739
Author(s):  
Marius Dumitrescu ◽  
Alina Badanoiu ◽  
Constantin Dorinel Voinitchi ◽  
Georgeta Voicu
Keyword(s):  
Cement Paste ◽  
Rheological Behavior ◽  
Cement Hydration ◽  
Great Influence ◽  
Hydration Process ◽  
X Ray Diffraction ◽  
Self Compacting Concrete ◽  
Binder Ratio ◽  
Early Strength ◽  
Water To Binder Ratio

This paper proposes a methodology to assess the rheological behavior of cement paste as a first step to linking this behavior to the robustness of the Self Compacting Mortar (SCM) and further extending this to Self-Compacting Concrete (SCC). Cement paste�s rheological behavior was assessed in terms of spread (using a mini-cone) and time of flow (using the Marsh cone). The results show that the type of superplasticizer (SP) admixture has a great influence on the rheological behavior of cement paste and for each combination of binder and superplasticizer admixture there is a specific range of water to binder ratio in which the rheology of paste seems to be appropriate for obtaining a robust SCC mix. The influence of SP and limestone filler addition on the kinetic of cement hydration process was assessed by X Ray Diffraction and thermal analysis (TG-DTA). Based on these results, i.e. an important delaying effect exerted by superplasticizer additions on cement hydration process at early ages (1 day), it can be concluded that when designing SCC for the precast industry - where the early strength of concrete is of high importance, analyzing the early strength of binder paste together with the robustness properties is very important. The correlation between the two aspects - rheology and early strength -is very important in this case in order to obtain applicable results in practice.

Rheological behavior of low shrinkage very high strength self-compacting concrete

2021 ◽  
Vol 286 ◽  
pp. 122838
Author(s):  
Ronaldo Pilar ◽  
Rudiele Aparecida Schankoski ◽  
Raissa Douglas Ferron ◽  
Wellington Longuini Repette
Keyword(s):  
Rheological Behavior ◽  
High Strength ◽  
Self Compacting Concrete ◽  
Very High

From biorefineries to bioproducts: conversion of pretreated pulp from biorefining streams to lignocellulose nanofibers

TAPPI Journal ◽  
2019 ◽  
Vol 18 (4) ◽  
pp. 233-241
Author(s):  
CHENGGUI SUN ◽  
RICHARD CHANDRA ◽  
YAMAN BOLUK
Keyword(s):  
Energy Consumption ◽  
Enzymatic Hydrolysis ◽  
Rheological Behavior ◽  
Material Basis ◽  
Softwood Pulp ◽  
Energy Consumptions ◽  
Hardwood Pulp ◽  
The Stability ◽  
Lignocellulose Nanofibers

This study investigates the use of pretreatment and enzymatic hydrolysis side streams and conversion to lignocellulose nanofibers. We used a steam-exploded and partial enzymatic hydrolyzed hardwood pulp and an organosolv pretreated softwood pulp to prepare lignocellulose nanofibers (LCNF) via microfluidization. The energies applied on fibrillation were estimated to examine the energy consumption levels of LCNF production. The energy consumptions of the fibrillation processes of the hardwood LCNF production and the softwood LCNF production were about 7040-14080 kWh/ton and 4640 kWh/ton on a dry material basis, respectively. The morphology and dimension of developed hardwood and softwood LCNFs and the stability and rheological behavior of their suspensions were investigated and are discussed.

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