Chloride ion penetration into mortar containing ceramic waste aggregate

Higashiyama, Hiroshi; Sappakittipakorn, Manote; Sano, Masanori; Yagishita, Fumio

doi:10.1016/j.conbuildmat.2012.01.018

Cited by 49 publications

(15 citation statements)

References 14 publications

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“…All samples showed a high resistance to chloride penetration and durability, confirming the positive impact of using these aggregates. Higashiyama et al (2012aHigashiyama et al ( , 2012b) also came to the same conclusions with respect to durability. Some authors (Suzuki et al, 2009;Vejmelková et al, 2012) have suggested that the use of recycled ceramic materials could enhance HPC, offering an additional value to ceramic waste.…”

Section: Introductionsupporting

confidence: 62%

“…Offprint provided courtesy of www.icevirtuallibrary.com Author copy for personal use, not for distribution to that of conventional concrete (Neville, 1995). According to some researchers (Higashiyama et al, 2012a(Higashiyama et al, , 2012bLópez et al, 2007;Pacheco-Torgal and Jalali, 2010;Torkittikul and Chaipanich, 2010) an improved interfacial zone due to the use of rough ceramic, as well as the strength of the sintered ceramic (mullite), contributes to this increase in strength. Taha and Nounu (2008) also reported that aggregate texture plays an important role in the compressive strength of concrete.…”

Section: Resultsmentioning

confidence: 99%

“…After 6 months and 1 year of curing, the concretes with ceramic RA showed a lower chloride penetration than that of conventional concrete, although concretes with 20% of ceramic RAs had a higher resistance to chloride than that of conventional concrete. Pacheco-Torgal and Jalali (2010) and Higashiyama et al (2012aHigashiyama et al ( , 2012b also concluded that the durability of concretes improved significantly in concretes produced with fine ceramic aggregates. Binici (2007) concluded that the use of fine ceramic aggregate as a substitution of up to 60% natural sand strongly improved the chloride penetration resistance of the concretes produced.…”

Section: Chloride Ion Penetrabilitymentioning

confidence: 95%

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Effect of fine ceramic recycled aggregate (RA) and mixed fine RA on hardened properties of concrete

Etxeberria

Vegas

2015

Magazine of Concrete Research

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Section: Introductionsupporting

confidence: 62%

Section: Resultsmentioning

confidence: 99%

Section: Chloride Ion Penetrabilitymentioning

confidence: 95%

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Effect of fine ceramic recycled aggregate (RA) and mixed fine RA on hardened properties of concrete

Etxeberria

Vegas

2015

Magazine of Concrete Research

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“…Furthermore, as shown in Table 2 and Fig. 6, all CWA mortars tested at each age have the same or higher compressive strength of the corresponding RS mortar, RSM, tested previously 5) . Regarding the compressive strength development, the CWAM15 and CWAM30 are more advantage at both early and later ages and the CWAM45 is also effective at the later age when compared with the CWAM0.…”

Section: Compressive Strength Developmentmentioning

confidence: 95%

Time Dependency on Chloride Diffusion of Ceramic Waste Aggregate Mortars Containing Ground Granulated Blast-Furnace Slag

Higashiyama

Sappakittipakorn

Mizukoshi

et al. 2015

J. Soc. Mat. Sci., Japan

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From our previous findings, the recycling of ceramic waste aggregate (CWA) in mortar has been proved an ecological means plus an excellent outcome against chloride ingress. The CWAs were electric porcelain insulator wastes supplied from an electric power company, which were crushed and ground to fine aggregate sizes. In this study, to further develop the CWA mortar as an eco-efficient, ground granulated blast-furnace slag (GGBS) was incorporated. The GGBS was utilized as a supplementary cementitious material (SCM) at three different replacement levels of 15, 30, and 45% by weight of cement. The time dependency of the GGBS on enhancing chloride resistance in the CWA mortars was experimentally assessed by using an electron probe microanalysis (EPMA). The tests were carried out on mortar samples after immersion in 5.0% NaCl solution for 24, 48, and 96 weeks. Another set of the mortar samples was exposed to a laboratory ambient condition for 24, 48, and 96 weeks and then followed with a carbonation test. The resistance to the chloride ingress of the CWA mortar becomes more effective in proportion to the replacement level of the GGBS. Meanwhile, the carbonation depth of the CWA mortar increases with increasing the GGBS. The relationship between the apparent chloride diffusion coefficient and the GGBS replacement level was shown along with the immersion time.

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“…It is known that the CDW composition depends on the stage in which the construction is (MIRANDA, 2000), the mortar fraction being one of the most found fractions in this material (LOVATO; MENEGATTI, 2015; MALTA; SILVA; GONÇALVES, 2013; OLIVEIRA; CABRAL, 2011), due to its utilization in several construction stages (masonry elevation, subfloor, coating, etc). Mixed fine recycled aggregates have been used by some authors in their studies with mortars (MALTA et al, 2014;CORINALDESI;MORICONE, 2009;SILVA et al, 2011;OLIVEIRA, 2012), others researchers used recycled aggregates exclusively from mortar wastes (SERRA; SANTANA; CABRAL, 2014), or ceramic wastes (SILVA;VEIGA, 2009;HIGASHIYAMA et al, 2012). Taking into account the greater porosity of fine recycled materials, as observed by the authors mentioned above, and consequently the greater water absorption rate of recycled aggregate, the researchers have made a correction of the water/cement ratio of the recycled mixtures to produce the new mortars.…”

Section: Introductionmentioning

confidence: 99%

Study of the influence of the mortar fine recycled aggregate ratio and the mixing sequence on the behavior of new mortars

Neto

Leite

2018

Ambient. constr.

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The objective of this study was to investigate the behavior of mortars by replacing a natural fine aggregate (NFA) with mortar fine recycled aggregate (MFRA), with dimensions of less than 2.4mm. In addition, the influence of the mixing sequence over the performance of these mortars was analyzed. For this purpose, the replacement contents, by weight, of 20% and 40%, and two mixing sequences were adopted: the sequence of the Brazilian Standard, NBR 7215 (ABNT, 1996) and an adaptation for mortars (MDE, in Portuguese, Mistura em Duas Etapas) of the Two-Stage Mixing Approach (TSMA), proposed by Tam, Gao and Tam (2005) for recycled concrete. The mortars were produced with cement CPV-ARI, using a mixing proportion of 1.0:5.0 (cement:aggregate, by weight) and a constant water/cement rate of 0.88. To analyze the behavior of the recycled mortars, they were tested in the fresh state and in the hardened state. The study concluded that the partial replacement of the NFA with the MFRA improved some properties of the recycled mortars: the air entrained content and the water absorption rate by capillarity decreased, and the mechanical performance increased. Regarding the influence of the mixing sequence, the adoption of the MDE promoted a better behavior on the mortar properties evaluated.

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Chloride ion penetration into mortar containing ceramic waste aggregate

Cited by 49 publications

References 14 publications

Effect of fine ceramic recycled aggregate (RA) and mixed fine RA on hardened properties of concrete

Effect of fine ceramic recycled aggregate (RA) and mixed fine RA on hardened properties of concrete

Time Dependency on Chloride Diffusion of Ceramic Waste Aggregate Mortars Containing Ground Granulated Blast-Furnace Slag

Study of the influence of the mortar fine recycled aggregate ratio and the mixing sequence on the behavior of new mortars

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