Influence of the Aggregate Type on the Properties of Dolomitic Lime-Based Mortars

Vyšvařil, Martin; Žižlavský, Tomáš; Bayer, Patrik

doi:10.4028/www.scientific.net/kem.722.343

Cited by 3 publications

(3 citation statements)

References 15 publications

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“…No strong differences are observed in the hardened performance of mortars as a function of the original composition of the air lime (calcitic or dolomitic) [2,33,129]. Similar final mechanical strengths were achieved in samples tested along 1 curing year, although final strengths were slightly higher for dolomitic mortars [33].…”

Section: Carbonation and Performance Of Dolomitic Lime Mortarsmentioning

confidence: 73%

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RILEM TC 277-LHS report: a review on the mechanisms of setting and hardening of lime-based binding systems

et al. 2021

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The main objective of RILEM TC LHS-277 “Specifications for testing and evaluation of lime-based repair materials for historic Structures” is the revision, adaption and, when necessary proposal, of the test methods to accurately study lime-based binding systems and mixtures, such as mortars and grouts. The empiric use of the lime-based composites and the predominant employ of cement in the field of Civil Engineering have led to the widespread application of test methods developed for cement-based composites to test the former. However, the clear differences in composition and performance between modern cement binders and lime-based materials would advise to explore specific test methods for the latter. To undertake this task the previous knowledge on the mechanisms of setting and hardening of these binders must be revised, arranged and synthesized. Processes such as drying, carbonation, hydration and pozzolanic reaction may occur during the setting and hardening of lime-based mortars and competition between them cannot be underestimated. With the aim of underpinning the revision and proposal of test methods for lime-based systems, this review paper reports a comprehensive study of the mechanisms of setting and hardening of these binders, considering the variability of the composition, which includes pure air lime as well as lime with hydraulic properties, lime-cement and lime-pozzolan systems.

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Section: Carbonation and Performance Of Dolomitic Lime Mortarsmentioning

confidence: 73%

“…365 days (calcareous aggregates) [33]. Figure 2 presents the values of 20 published datasets of compressive strengths of dolomitic lime mortars (with diverse binder/aggregate ratios, which explains the variability) [33][34][35][36]129,130]…”

Section: Carbonation and Performance Of Dolomitic Lime Mortarsmentioning

confidence: 99%

RILEM TC 277-LHS report: a review on the mechanisms of setting and hardening of lime-based binding systems

et al. 2021

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“…The mineralogical composition of NHL determined by XRD using the Rietveld method is presented in Table 2. The aggregates and limestone fines are commercial products with controlled granulometry, and a constant chemical and mineralogical composition [11]. Aggregate S (supplied by Filtrační písky s.r.o.)…”

Section: Methodsmentioning

confidence: 99%

Effect of Aggregate Type on Properties of Natural Hydraulic Lime-Based Mortars

Vyšvařil

Žižlavský

Zimmermann

et al. 2017

MSF

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In the current restoration practice, the mortars based on aerial or hydraulic lime with siliceous aggregate are used on repair / reconstruction of historical plasters. The resulting properties of lime mortars do not depend only on the type of aggregate, but also on its contamination, origin and a degree of hardening. For this reason, it is needed to know a detailed characteristic of the aggregate and the results obtained for the particular aggregate cannot be generally applied for the similar type of aggregate. This work presents the applicability of Czech local crushed limestone aggregate and limestone fines as a filler to natural hydraulic lime-based mortars. The role of aggregate and limestone fines on the properties of mortars is examined by comparing the mechanical strengths, porosity and frost resistance of the mortars with pure quartz sand and limestone aggregate and its quantity in the mortar. It was found that the limestone aggregate has produced lower strengths, higher total porosity of natural hydraulic lime-based mortars. It has resulted in low frost resistance of the mortars.

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Effect of aggregate gradation on lime mortars rheology

Vyšvařil

Vozák

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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The influence of basalt, limestone, and quartz aggregate and their various gradation on rheological properties of air lime mortars with constant water/binder ratio and binder/aggregate ratio is monitored in this work. It was found that the rheology of fine-grained lime mortars is influenced not only by the shape of the aggregate, but also by its granulometry, especially by the content of fines. The lime mortars with basalt, limestone or quartz aggregate are shear-thinning non-Newtonian liquids. Their shear stress, yield stress, and flow index decrease with increasing aggregate fraction. The viscosity of lime mortars is markedly influenced by the amount of lime matrix. The lime mortars with quartz and limestone aggregate are rheopectic suspensions.

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Influence of the Aggregate Type on the Properties of Dolomitic Lime-Based Mortars

Cited by 3 publications

References 15 publications

RILEM TC 277-LHS report: a review on the mechanisms of setting and hardening of lime-based binding systems

RILEM TC 277-LHS report: a review on the mechanisms of setting and hardening of lime-based binding systems

Effect of Aggregate Type on Properties of Natural Hydraulic Lime-Based Mortars

Effect of aggregate gradation on lime mortars rheology

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