Effect of limestone powder substitution on mechanical properties and durability of slender precast components of structural mortar

Souza, Alessandra Tolentino; Barbosa, Thiago Ferreira; Riccio, Lucas Andrade; Santos, White José dos

doi:10.1016/j.jmrt.2019.11.024

Cited by 31 publications

(6 citation statements)

References 19 publications

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“…In general, the sand proportions from 2.25 to 3 worked better, since from the 3.25 value, the mixtures did not comply with the standard. We can see how the B1 lime mortars functioned better, with more specimens reaching the minimum strength required of 75 kgf/cm 2 , according to the results reported by other authors (Beng Wei et al, 2021;HAMMAT et al, 2021;Souza et al, 2020). For B1 mortars the best aggregate was R; while for the B2 mortars, the best one was J.…”

Section: Resultssupporting

confidence: 83%

“…The influence of fiber additions was also analyzed on the fresh properties, as well as the deformability and the mechanical behavior (Brazão Farinha et al, 2021); also, the effects of additions like silica flume, superplasticizer and the water/binder ratio have been studied (Senff et al, 2009). The partial substitution of cement by limestone powder (0, 9, 16, 23 and 30 %) has proven an affectation in the rheological, mechanical and durability properties (Souza et al, 2020), as well as fine eggshell powder (Beng Wei et al, 2021), or natural pozzolans (HAMMAT et al, 2021).…”

mentioning

confidence: 99%

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Influencia de la proporción de arena en las propiedades físicas y mecánicas de morteros para la edificación

Navarrete-Seras

Martínez-Molina

Chávez-García

et al. 2023

Revista de la Asociación Latinoamericana de Control de Calidad,

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Se analizó la influencia de la proporción de arena en morteros Tipo II según norma N-CMT-2-01-004/02 empleando tres tipos de áridos de la región de Morelia, Michoacán determinando su influencia en sus propiedades físico-mecánicas, contemplando el uso de diferentes materiales cementantes (MC): el cemento Portland más cal (B1), cemento Portland más cemento de albañilería (B2). Se elaboraron mezclas para B1 y B2 con relaciones en volumen arena/MC, desde 2.25 hasta 4, determinando la fluidez, resistencia a compresión uniaxial (UCS) y resistividad eléctrica húmeda (WER). Se estudió la relación entre la fluidez y la cantidad de agua/MC, concluyendo que el tipo de árido y proporciones modifican la fluidez y demanda de agua en estado fresco impactando en UCS y WER.

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Section: Resultssupporting

confidence: 83%

mentioning

confidence: 99%

Influencia de la proporción de arena en las propiedades físicas y mecánicas de morteros para la edificación

Navarrete-Seras

Martínez-Molina

Chávez-García

et al. 2023

Revista de la Asociación Latinoamericana de Control de Calidad,

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“…The results above are similar to other research. Alessandra et al 27 investigates the effect of LS substitution on mechanical properties. The results show that cement replacement by LS decreases the compressive strength and compressive strength reduces by 33.71% on 30% LS addition which is similar to 32.5% in this paper.…”

Section: Resultsmentioning

confidence: 99%

Influence of curing temperature on the mechanical properties and microstructure of limestone powder mass concrete

Jin

Jiang

Han

et al. 2020

Structural Concrete

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This study investigates the influence of different percentages: 10, 30, and 50% of limestone powder (LS) and different curing temperatures: 50, 20, and 5°C on mechanical properties and microstructure of mass concrete. The microstructure is studied by X‐ray diffraction, thermogravimetric, and scanning electron microscopy. The results show that the mechanical strength of concrete gradually decreases with the increase of LS. Curing temperature 50°C enhances mechanical strength of LS concrete at ages of 3 and 7 days, but slightly reduces that at age of 28 days. While curing temperature 5°C significantly reduces the mechanical strength at ages of 3, 7, and 28 days. The microstructure results indicate that LS has weak chemical effect and can participate in cement hydration. Different curing temperatures can significantly influence the hydration products and microstructure of LS composite cement pastes.

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“…The strength gain can be explained by the better particle packing caused by the filler effect as observed for the absorption and void index results. In general, when the void index and, consequently, the porosity index decrease, the compressive strength (Souza, Barbosa, Riccio, & Santos, 2020). In addition, increased nucleation points for formation of hydrated cement compounds due to the fineness of the material may have contributed to this result.…”

Section: Tensile Strength At Flexion and Compressionmentioning

confidence: 99%

Influence of Addition Contents of Iron Ore Tailings on Structural Mortar

Castro¹,

Almada²,

Fajardo³

et al. 2021

JMS

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This study discusses and analyzes an alternative of IOT reuse as addition in structural mortars, evaluating the influence of IOT addition contents. The material was physically and chemically characterized. Structural mortars were molded with 10%, 20%, 30% and 40% of addition of IOT in relation to cement mass. We investigate physical properties, mechanical indicators, durability indicators and microstructure. The tailings are composed of predominantly quartz, hematite and goethite, and no components were found that could compromise the cementitious composites. The addition of IOT provided a tendency to reduce open porosity. The addition of 30% IOT was the most efficient in closing pores. All addition contents led to the maintenance or gains in mechanical properties, and a 10% gain in flexural tensile strength was observed for the addition of 10% IOT. The addition of 40% IOT promoted a 14% gain in compressive strength and maintenance of flexural tensile strength. This addition content evidences that the carbonation depth was not significantly affected. Based on the results, the addition percentages of 30-40% are interesting as to the analyzed properties.

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Effect of limestone powder substitution on mechanical properties and durability of slender precast components of structural mortar

Cited by 31 publications

References 19 publications

Influencia de la proporción de arena en las propiedades físicas y mecánicas de morteros para la edificación

Influencia de la proporción de arena en las propiedades físicas y mecánicas de morteros para la edificación

Influence of curing temperature on the mechanical properties and microstructure of limestone powder mass concrete

Influence of Addition Contents of Iron Ore Tailings on Structural Mortar

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