The relationship between the rheological behavior and interlayer bonding properties of 3D printing cementitious materials with the addition of attapulgite

Yao, Hao; Xie, Zonglin; Li, Zemin; Huang, Chuhan; Yuan, Qiang; Zheng, Xinguo

doi:10.1016/j.conbuildmat.2021.125809

Cited by 51 publications

(12 citation statements)

References 38 publications

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“…It was reported by the researchers that this may be due to the faster and deeper transport of chloride ions across interconnected and continuous spaces between layers. The impact of employing attapulgite clay on the chlorine‐ion resistance of 3DPC mixtures was examined in another study by Yao et al 113 It was determined that the chloride ion resistance of the mixtures decreased with the addition of attapulgite clay. It was emphasized that the decrease in the chlorine ion resistance of 3DPC mixtures became more evident with the increase in the use of attapulgite.…”

Section: Assessment Of Strength and Durability Performance Of 3dpc Mi...mentioning

confidence: 99%

Mechanical properties, durability performance and interlayer adhesion of 3DPC mixtures: A state‐of‐the‐art review

Şahin

Mardani‐Aghabaglou

2023

Structural Concrete

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In this study, the strength and durability performance of 3D printing concrete mixtures (3DPC) were examined in terms of the materials used in their production and printing process parameters (interlayer interval time, printing speed, and nozzle shape). Due to the anisotropic nature of 3DPC, it was understood that the compressive strength depends on the loading direction. It was emphasized that it is necessary to control the shrinkage behavior of 3DPC mixtures due to the lack of formwork and the high dosage of binders. It was reported that the interlayer adhesion of 3DPC is highly dependent on the interlayer interval time and printing speed parameters. It was understood that nozzle shape and standoff distance affect the mechanical properties and surface roughness of 3DPC specimens, and this effect is more pronounced in mixtures with high static yield stress values.

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Section: Assessment Of Strength and Durability Performance Of 3dpc Mi...mentioning

confidence: 99%

Mechanical properties, durability performance and interlayer adhesion of 3DPC mixtures: A state‐of‐the‐art review

Şahin

Mardani‐Aghabaglou

2023

Structural Concrete

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“…The interlayer bond strengths of the specimen at 3, 7, 28, and 90 days were measured by the slant shear bond strength, as shown in Figure 2 . In the slant shear strength test, the load was directly applied to the mold, and the inclined angle of the specimen was set to 60 degrees [ 68 , 69 ]. The loading rate was 2.4 kN/s.…”

Section: Experimental Programmentioning

confidence: 99%

Factors Influencing the Properties of Extrusion-Based 3D-Printed Alkali-Activated Fly Ash-Slag Mortar

et al. 2022

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The mix proportioning of extrusion-based 3D-printed cementitious material should balance printability and hardened properties. This paper investigated the effects of three key mix proportion parameters of 3D-printed alkali-activated fly ash/slag (3D-AAFS) mortar, i.e., the sand to binder (s/b) ratio, fly ash/ground granulated blast-furnace slag (FA/GGBS) ratio, and silicate modulus (Ms) of the activator, on extrudability, buildability, interlayer strength, and drying shrinkage. The results showed that the loss of extrudability and the development of buildability were accelerated by increasing the s/b ratio, decreasing the FA/GGBS ratio, or using a lower Ms activator. A rise in the s/b ratio improved the interlayer strength and reduces the drying shrinkage. Although increasing the FA/GGBS mass ratio from 1 to 3 led to a reduction of 35% in the interlayer bond strength, it decreased the shrinkage strain by half. A larger silicate modulus was beneficial to the interlayer bond strength, but it made shrinkage more serious. Moreover, a simple centroid design method was developed for optimizing the mix proportion of 3D-AAFS mortar to simultaneously meet the requirements of printability and hardened properties.

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“…Nano attapulgite as an additive can be added to multiple slurries to adjust the rheological and mechanical properties. [20][21][22][23] Additionally, Yuan 24 and coworkers investigated the relationship between the rheological properties of 3D printing cementitious materials of attapulgite and interlayer bonding properties. Moreover, Zhao 25 and coworkers realized 3D printing of gelatin/sodium alginate hydrogel scaffolds doped with nano attapulgite.…”

Section: Introductionmentioning

confidence: 99%

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

Zhu,

Yu,

Zhu

et al. 2024

New J. Chem.

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The relationship between the rheological behavior and interlayer bonding properties of 3D printing cementitious materials with the addition of attapulgite

Cited by 51 publications

References 38 publications

Mechanical properties, durability performance and interlayer adhesion of 3DPC mixtures: A state‐of‐the‐art review

Mechanical properties, durability performance and interlayer adhesion of 3DPC mixtures: A state‐of‐the‐art review

Factors Influencing the Properties of Extrusion-Based 3D-Printed Alkali-Activated Fly Ash-Slag Mortar

3D-printing of attapulgite monoliths with superior low-temperature selective catalytic reduction activity: the influence of thermal treatment

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