Methods for porosity measurement in lime-based mortars

Stefanidou, Maria

doi:10.1016/j.conbuildmat.2010.05.019

Cited by 70 publications

(19 citation statements)

References 14 publications

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“…Sorptivity provides information to anticipate the water resistance and durability of SCMs . Owing to its impact on key features such as strength and durability, porosity is one of the most widely used parameter to define the physical properties of building materials . Relation between porosity, water absorption and density of all SCMs is presented in Figure .…”

Section: Resultsmentioning

confidence: 99%

Mechanical and durability properties of self‐compacting mortars containing binary and ternary mixes of fly ash and silica fume

Benli

2019

Structural Concrete

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In this paper, the results of experimental work on the strength and durability performances of self‐compacting mortars (SCMs) manufactured from silica fume (SF) and fly ash (FA) were presented. The cement was partially replaced with 5, 10, 15, 20, and 25% of FA and 5, 10, and 15% of SF as binary mixes. Also, ternary mixtures were prepared by the incorporation of FA and SF at different replacement dosages by weight. In total, 14 different combinations of mixes were studied at the ages of 7, 28, and 180 days. Prismatic samples of size 40 × 40 × 160 mm3 were produced and exposed to water curing to observe mechanical behavior of SCMs. The mechanical properties of SCMs were examined by the tests of compressive strength and flexural strength. Sorptivity, porosity, water absorption, and density were also measured. To evaluate fresh properties of SCMs, mini slump flow diameter and mini V‐funnel flow time tests were conducted. The results of the study reveal that increase in the dosage of FA increases SCMs flow but also reduce segregation resistance. The enhancement in flexural strength is the best in the binary mixes of SF10 and in binary mixes of FA. Ten percent replacement of FA shows the best flexural strength performance with a value of 10.21 MPa at the age of 180 days. Compressive and flexural strengths of mortars containing SF and FA reached up to about 86.14 and 10.50 MPa, respectively.

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Section: Resultsmentioning

confidence: 99%

Mechanical and durability properties of self‐compacting mortars containing binary and ternary mixes of fly ash and silica fume

Benli

2019

Structural Concrete

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“…Although the sorptivity is the right way to estimate SCMs water resistance and durability, the porosity provides additional information about pore volume and connectivity [55]. Porosity is one of the most commonly identified physical properties of building materials; mainly due to its influence on important properties such as strength and durability [56]. Fig.…”

Section: Porositymentioning

confidence: 99%

Effect of sea water and MgSO4 solution on the mechanical properties and durability of self-compacting mortars with fly ash/silica fume

Benli

Karataş

Gürses

2017

Construction and Building Materials

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“…Experimentally, the porosity can be defined by direct methods (Microscopy) or by indirect methods (based on natural absorption, Nitrogen adsorption/desorption, Mercury intrusion porosimetry (MIP), while the water absorption technique is the simplest [12].…”

Section: Introductionmentioning

confidence: 99%

“…The porosity value is an increase in average pore diameter, according to IUPAC the pores ranged in three classes; micro-pores (0.1-2 nm), meso-pores (2-50 nm) and macro-pores (50 nm-10 mm) [12,13]. According to Mindess [13] another type of pores rest, which is the empty pores > 10 mm, which are created as a result of the inclusion of occluded air at the mixing.…”

Section: Introductionmentioning

confidence: 99%

The Porosity of Stabilized Earth Blocks with the Addition Plant Fibers of the Date Palm

et al. 2020

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This work is an experimental study to analyze the physical behavior of Stabilized Earth Block (SEB) and reinforced with Plant Fibers of the Date Palm (PFDP). This is part of the valorization of local building materials (earth, fiber) and contributes to reduce the price of housing. Initially, physical tests (Density, Total Water Absorption, and Capillary Absorption) were carried out in preparation for the porosity study. However, the main objective of this study is the investigation of porosity phenomenon using several methods as well as the total porosity estimation, the total volume porosity in water and Open porosity methods, where the mechanical resistance is also considered. In order to improve the stabilized earth block porosity analyses, various dosages are proposed for cement, lime and fiber. Thus (0%, 5%, 10%) of cement, (0%, 5%, 10%) of lime and the combination (5% cement + 5% lime) with (0%, 0.25%, and 0.5%) of fibers for each composition. The experimental results showed that the addition of fibers increases the porosity of the stabilized earth block proportionally and an increasing quantity of the stabilizer reduces the porosity of the SEB, cement is also more effective at closing pores than lime. Moreover, the compositions 10% cement and the mixture of 5% cement + 5% lime with 0% fiber showed a good results of porosity, for this reason they can be used as a durable building material and good resistance to natural and chemical aggression.

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Methods for porosity measurement in lime-based mortars

Cited by 70 publications

References 14 publications

Mechanical and durability properties of self‐compacting mortars containing binary and ternary mixes of fly ash and silica fume

Mechanical and durability properties of self‐compacting mortars containing binary and ternary mixes of fly ash and silica fume

Effect of sea water and MgSO4 solution on the mechanical properties and durability of self-compacting mortars with fly ash/silica fume

The Porosity of Stabilized Earth Blocks with the Addition Plant Fibers of the Date Palm

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