Influence of mix proportions on rheology of cement grouts containing limestone powder

Svermova, L.; Sonebi, Mohamed; Bartoš, Petr

doi:10.1016/s0958-9465(02)00115-4

Cited by 94 publications

(46 citation statements)

References 9 publications

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“…Despite the trends made above are consistent with previous studies, notably for yield stress and mini-slump test responses [8], there is no doubt that they are not sufficiently reliable in order to be extended to the whole experimental domain. In fact, the isodiagrams presented in Figs.…”

Section: Model Predictionsupporting

confidence: 84%

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Self-compacting concrete paste constituents: Hierarchical classification of their influence on flow properties of the paste

Barrak

Mouret

Bascoul

2009

Cement and Concrete Composites

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Section: Model Predictionsupporting

confidence: 84%

“…That is why many authors have studied the influence of constituents on the flow properties of cementitious mixtures (paste, mortar and concrete) using statistical models [6][7][8][9][10][11]. All these studies use a factorial design approach in order to determine the effects of parameters on the flow properties and mechanical resistance.…”

Section: Introductionmentioning

confidence: 99%

Self-compacting concrete paste constituents: Hierarchical classification of their influence on flow properties of the paste

Barrak

Mouret

Bascoul

2009

Cement and Concrete Composites

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“…The correlation coefficients of the proposed models for mini-slump flow diameter, Marsh cone flow time, yield stress, plastic viscosity, mid-span beam deflection, flexural strength and compressive strength are 0.978, 0.856, 0.901, 0.927, 0.800, 0.986 and 0.864, respectively. The high correlation coefficient of most responses demonstrates excellent correlation where it can be considered that at least 95% of the measured values can be accounted for the proposed models [47].…”

Section: Regression Modelsmentioning

confidence: 72%

“…The derived models were obtained with 95% confidence interval. This signifies that there is less than 5% chance or 95% confidence limit that the contribution of a given parameter to the tested response exceeds the value of the specified coefficient [47]. The correlation coefficients of the proposed models for mini-slump flow diameter, Marsh cone flow time, yield stress, plastic viscosity, mid-span beam deflection, flexural strength and compressive strength are 0.978, 0.856, 0.901, 0.927, 0.800, 0.986 and 0.864, respectively.…”

Section: Regression Modelsmentioning

confidence: 99%

Improving the workability and rheological properties of Engineered Cementitious Composites using factorial experimental design

Şahmaran

Bilici

Özbay

et al. 2013

Composites Part B: Engineering

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In the development of Engineered Cementitious Composites (ECC), micromechanics-based design theory is adopted to properly select the matrix constituents, fiber, and fiber-matrix interface properties to exhibit strain hardening and multiple cracking behaviors. Despite the micromechanics design constraints, practical applications show that the workability and rheological properties of matrix can affect the fiber dispersion uniformity, which have also direct concerns on composite mechanical properties. For this reason, in this research, parameters of micromechanics-based optimized ECC mixture design, which most possibly affecting the workability and rheological properties, are investigated. An experimental program that contains 36 different ECC mixtures was undertaken to quantitatively evaluate the combined effects of the following factors on workability and rheological properties: water-binder (w/b), sand-binder (s/b), superplasticizer-binder (SP/b) ratios and maximum aggregate size (Dmax). A mini-slump cone, a Marsh cone and a rotational viscometer were used to evaluate the workability and rheological properties of ECC mixtures. Compressive strength and four point bending tests were used for mechanical characteristics of ECC mixtures at 28 days. The effects of studied parameters (w/b, s/b, SP/b and Dmax) were characterized and analyzed using regression models, which can identify the primary factors and their interactions on the measured properties. Statistically significant regression models were developed for all tested parameters as function of w/b, s/b, SP/b and Dmax. To find out the best possible ECC mixture under the range of parameters investigated for the desired workability and mechanical characteristics, a multi-objective optimization problem was defined and solved based on the developed regression models. Test results indicate that w/b, s/b and SP/b parameters affect the rheological and workability properties. On the other hand, for the range of studied aggregate sizes, Dmax is found to be statistically insignificant on the rheological and workability properties of ECC.Scientific and Technical Research Council of Turkey (MAG-108M495

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“…When further increasing the dosage of LP to 30%, the workability of the mixtures is slightly decreased. Improvement on the fresh behavior of pastes were also observed in PC based materials after incorporating LP [31,32]. This can be contributed by two mechanisms.…”

Section: Flowabilitymentioning

confidence: 78%

Assessing the chemical involvement of limestone powder in sodium carbonate activated slag

Yuan

Brouwers

2017

Mater Struct

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This study aims to investigate the effect of limestone powder (LP) on the reaction of sodium carbonate activated slag. The results show that the incorporated LP up to 30% improves the strength development, especially at advanced curing ages. A slightly accelerated reaction is observed for samples containing low amount of LP (B5%), while mixture with 10% LP shows the optimized results with respect to the heat release and strength development. Chemical effect of incorporating LP is observed at high replacement levels (C15%), indicated by the formation of a new phase, natron (Na 2 CO 3 Á10H 2 O). Besides, relatively high contents of hydrotalcite-like phases are generated when increasing the dosage of limestone powder. The chemical changes, including the volume changes of generating natron and the transformation of natron to calcite, is potentially responsible for the enhanced mechanical properties.

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Influence of mix proportions on rheology of cement grouts containing limestone powder

Cited by 94 publications

References 9 publications

Self-compacting concrete paste constituents: Hierarchical classification of their influence on flow properties of the paste

Self-compacting concrete paste constituents: Hierarchical classification of their influence on flow properties of the paste

Improving the workability and rheological properties of Engineered Cementitious Composites using factorial experimental design

Assessing the chemical involvement of limestone powder in sodium carbonate activated slag

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