Enhance the rheological and mechanical properties of clayey materials by adding starches

Alhaik, Ghaith; Ferreira, Michel; Dubois, Vincent; Wirquin, Eric; Tilloy, S.; Monflier, Éric; Aouad, G.

doi:10.1016/j.conbuildmat.2016.11.130

Cited by 25 publications

(16 citation statements)

References 5 publications

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“…• Adding starch D or H + superplasticizer + lime increases flexural strengths which may be linked to the presence of starch according to previous research works [17].…”

Section: Mechanical Results Conducted With Laboratory Specimensmentioning

confidence: 66%

“…The addition of starch has also increased the thixotropic index up to four times. This study comes as a continuing of previous research work [17], which had shown that starches have a very important effect on the rheological and mechanical properties of earth paste. Therefore, the main goal of the present work is to evaluate the influence of two types of starch on earth/plant mixtures at fresh and hardened states.…”

Section: Introductionmentioning

confidence: 69%

“…• Adding starch to QF/hemp or flax straw mixtures enhances their flexural strengths which may be linked to the adhesion force between starch and QF particles according to previous research works [17].…”

Section: Mechanical Results Conducted With Laboratory Specimensmentioning

confidence: 95%

“…Starches vary in size and shape according to theirs botanical origins [20]. Based on the results of previous research work [17], two starches (D and H) have been chosen for this study, according to their efficiency to improve both of rheological and mechanical proprieties. The first starch (mentioned D) is a native starch while the other one (mentioned H) is a pregelatinized starch which had been cooked in hot water according to its gelling temperature.…”

Section: Starchmentioning

confidence: 99%

“…In previous research work, Alhaik et al [17] showed that starch improves the mechanical strengths of clayey materials. The addition of starch has also increased the thixotropic index up to four times.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer

Alhaik

Dubois

Wirquin

et al. 2018

Construction and Building Materials

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In this paper, we study the influence of two types of starch on earth hemp or flax straw mixtures at fresh and hardened states. The main goal is to propose new non-load bearing earthen for indoor. The mass percentage of starch/binder (S/B) in mixtures was fixed at 1% of mass. The VEBE consistometer test has been used to fix a similar consistency between mixtures. The targeted workability has to allow an easy introduction of materials in the moulds. Adding both of starch has shown a positive effect on mixtures workability at the fresh state and mechanical resistances at the hardened state. At hardened state, mechanical and thermal-acoustic performances have been measured on laboratory samples and blocks at real scale. Results have shown a significant effect of starch on mechanical strengths.

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“…• Adding starch D or H + superplasticizer + lime increases flexural strengths which may be linked to the presence of starch according to previous research works [17].…”

Section: Mechanical Results Conducted With Laboratory Specimensmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 69%

Section: Mechanical Results Conducted With Laboratory Specimensmentioning

confidence: 95%

Section: Starchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer

Alhaik

Dubois

Wirquin

et al. 2018

Construction and Building Materials

Self Cite

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Effects of different silane coupling agents on structure and properties of starch–chitosan–kaolin composites

Zhang

Xing

et al. 2019

J of Applied Polymer Sci

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Effects of different silane coupling agents on clay surface modification were studied. Herein, functionalized superfine kaolin was compounded with starch-chitosan (SCS) to prepare starch-chitosan-functionalized superfine kaolin composite. The characterization results showed that kaolin (K) was successfully modified; the composite formed a dense intercalated structure. The glass-transition temperature (T g ) was measured by differential scanning calorimetry and dynamic mechanical analysis. It decreased by 60 C which attested the crystallinity of SCS. The results of thermogravimetric analysis showed that the fastest weight-loss temperature (T max ) was elevated by over 50 C for composites. Mechanical properties of the composites were explored by electronic universal testing machine. Tensile strength and elongation of composites were improved by 4.7 and 10.9 times.

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Mechanical and Thermal Characterisation of Compressed Earth Blocks Made of Termite Mound Soil (Macrotermes Sp.) Stabilised with Corn Starch Gel

Malonga,

Poullain,

Bendahmane

et al. 2024

RILEM Bookseries

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Enhance the rheological and mechanical properties of clayey materials by adding starches

Cited by 25 publications

References 5 publications

Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer

Evaluate the influence of starch on earth/hemp or flax straws mixtures properties in presence of superplasticizer

Effects of different silane coupling agents on structure and properties of starch–chitosan–kaolin composites

Mechanical and Thermal Characterisation of Compressed Earth Blocks Made of Termite Mound Soil (Macrotermes Sp.) Stabilised with Corn Starch Gel

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