Rheological study of cement paste with metakaolin and/or limestone filler using Mixture Design of Experiments

Santos, Fabiano Nazário; Sousa, Sara Raquel Gomes de; Bombard, Antônio J. F.; Vieira, S. L.

doi:10.1016/j.conbuildmat.2017.03.001

Cited by 60 publications

(4 citation statements)

References 25 publications

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“…To obtain a reasonable portion of the stress plateau, a wide range of shear rate was applied as generally considered in the ordinary Portland cement pastes as well [34][35][36][37][38][39][40].…”

Section: Methodsmentioning

confidence: 99%

Lightweight Cement-Based Composites Incorporating Hollow Glass Microspheres: Fresh and Hardened State Properties

Kabay¹,

Kizilkanat²,

Aktürk³

et al. 2022

Teknik Dergi

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This research aims to develop a lightweight cementitious composite with satisfying mechanical and good thermal insulating properties. Two different types of hollow glass microspheres (HGM) were used as lightweight aggregates and were substituted with fine aggregate by 10, 20, and 40% by volume. The rheological, physical, mechanical, and microstructural properties of the resulting HGM-incorporated composites were investigated and correlations were established between physical and mechanical test results. The results showed that the physical and mechanical properties of individual HGM particles play a dominant role in the properties of lightweight mortars. HGM addition provided reductions up to 20% in the density and 45% in the thermal conductivity values of mortars compared to the reference. The best HGM ratio in the tested range was found as 20%, which provides benefits such as reduced density and enhanced thermal insulation capability without causing a significant reduction in compressive strength. It was concluded that HGMs can be used in the lightweight cementitious mortar production which has great potential in building applications to reduce the heating energy consumption.

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Section: Methodsmentioning

confidence: 99%

Lightweight Cement-Based Composites Incorporating Hollow Glass Microspheres: Fresh and Hardened State Properties

Kabay¹,

Kizilkanat²,

Aktürk³

et al. 2022

Teknik Dergi

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“…However, as the cement hydration continues, that promoted effect decreases [42]. Additionally, limestone fill alone does not control segregation or bleeding, and no rheology difference between cement pastes with limestone fill and plain OPC pastes was recorded [43]. On the other hand, using metakaolin is suggested for achieving low slump.…”

Section: Rheological Properties Of Lc3mentioning

confidence: 99%

Recent Progress in Limestone-Calcined Clay Cement (LC3): A Review

Abdelaziz

Shoukry²,

Selim

et al. 2023

MSF

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Recently, sustainable green binders became mandatory for the construction industry. The process of cement production is responsible for a considerable portion of CO2 causing global warming. Clinker substitution using available by-products is one of the promising strategies to cut down the CO2 emissions of the cement industry. Yet, it is challenging to limit the emission of CO2 without negatively affecting the strength and durability of the proposed concrete. One of the proposed green binders is Limestone-Calcined Clay cement (LC3). The newly developed LC3 binder integrates the advantages of incorporating available cement replacement materials - clay and limestone – and attaining adequate mechanical, physical, and durability performance. In this paper, an intensive review of previous research in LC3-based construction materials including nanomodification, fiber reinforcement, and durability enhancement is presented in details, aiming to highlight the points that lack investigation and the recommended future work.

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“…Panda et al 10,15 proposed the dimensionless parameter ( λ = ( τ i − τ e )/ τ e ) to characterize the thixotropic properties of fresh cement‐based materials. Santos et al 16 tested the viscosity recovery using a three‐interval thixotropy method to assess the thixotropic properties of fresh cement‐based materials. However, every method has its own set of principles, varied range of applicability, and distinct benefits and drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Characterization of thixotropic properties of fresh cement‐based materials

Ji,

Pan,

Liu

et al. 2023

Structural Concrete

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Accurate evaluation of the thixotropy of mixtures is crucial for the design and production of self‐compacting concrete, pumped concrete, and 3D printed concrete. However, there is no uniform standard for the assessment of the thixotropy of fresh cement‐based materials. In this paper, four widely used test procedures (thixotropic index, static yield stress growth curve, thixotropic hysteresis loop area, and three‐stage curve) are compared to determine the relationships between them. The results show that the test procedures based on the break‐down (destruction) process (thixotropic index, thixotropic hysteresis loop area, and degree of breakdown) are difficult to distinguish between reversible and irreversible thixotropic structures and to accurately assess the thixotropy of mixtures. The short‐term structural build‐up rate Rthix is more suitable for characterizing the thixotropic properties. The three‐stage curve can characterize both the degree of structural damage and the reconstruction ability of the paste, nano‐attapulgite clay can significantly improve the structural recovery degree of the mixture at the early hydration stage. This study will provide guidance and a theoretical framework for choosing the thixotropic characterization method of cement‐based materials in practical engineering applications.

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Rheological study of cement paste with metakaolin and/or limestone filler using Mixture Design of Experiments

Cited by 60 publications

References 25 publications

Lightweight Cement-Based Composites Incorporating Hollow Glass Microspheres: Fresh and Hardened State Properties

Lightweight Cement-Based Composites Incorporating Hollow Glass Microspheres: Fresh and Hardened State Properties

Recent Progress in Limestone-Calcined Clay Cement (LC3): A Review

Characterization of thixotropic properties of fresh cement‐based materials

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