Mechanical and durability properties of self consolidating high performance concrete incorporating natural zeolite, silica fume and fly ash

Sabet, Fereshteh A.; Libre, Nicolas Ali; Shekarchi, Mohammad

doi:10.1016/j.conbuildmat.2013.02.069

Cited by 287 publications

(129 citation statements)

References 24 publications

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“…Ordinary Portland Cement (OPC) of Type 2 was used in this study which is the most common cement used in fresh water, tidal and sea water [21]. Fresh water used for concreting in mix design.…”

Section: Materials and Experimental Methodsmentioning

confidence: 99%

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Effect of Natural Zeolite-Pozzolan on Compressive Strength of Oil-Polluted Concrete Marine Structures

2017

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Oil pollution into the concrete composed materials, leads to decrease the compressive strength of the constructed structure. In the present study, effect of using a natural pozzolan named Zeolite on concrete structures was tested in different marine conditions. A fixed amount of oil equal to 2% of sand weight was added as the pollution into the concrete composed materials. Natural Zeolite was added into the concrete instead of cement to the mix design with weight percentages of 10, 15 and 20. After preparing and curing, concrete specimens were placed into the three different conditions: fresh water, tidal, and sea water environments. Results of compressive strength tests showed that replacement of natural Zeolite instead of cement significantly increased compressive strength in comparison with control specimens, in all environments. Adding 20% natural Zeolite increased the compressive strength to its highest values about 60-85% higher than control specimens.

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Section: Materials and Experimental Methodsmentioning

confidence: 99%

“…Their results showed that incorporation of mineral admixtures generally improve mechanical and durability characteristics of the mixes. However, silica fume is slightly more effective than NZ or fly ash in improving durability properties of self-consolidating high performance concretes, while NZ is much more cost effective [21].…”

Section: Introductionmentioning

confidence: 99%

Effect of Natural Zeolite-Pozzolan on Compressive Strength of Oil-Polluted Concrete Marine Structures

2017

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“…Previous studies [20,25,34,37] revealed that use of CMC reduces the porosity of concrete due to pozzolanic reactions provided by the CMC. Thomas and Setien [38] stated increase in ISAT as RA content increases.…”

Section: Introductionmentioning

confidence: 99%

“…Sabet [13] reported that "ball-bearing effect" of fly ash (FA) concrete with FA contents of 10% and 20% increased concrete slump and therefore reduced the amount of SP required to reach target slump. Another study by Limbachiya [14] revealed that FA concretes with higher binder content reduced the workability.…”

Section: Introductionmentioning

confidence: 99%

Portland-composite and composite cement concretes made with coarse recycled and recycled glass sand aggregates: Engineering and durability properties

Bostancı

Limbachiya

Kew

2016

Construction and Building Materials

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Sustainable development approach demands the use of environmentally friendly materials. One possible way to encourage sustainable approach is via use of Portland cement (PC) replacement through use of permitted cement constituents in conformity with BS EN 197-1, to lower carbon footprint, and use of recycled aggregates as permitted within BS 8500, to encourage sustainability. Thus, this research study aimed to produce low carbon and sustainable concrete. For this aim, engineering and durability properties of equal 28-day design strength (40 and 50 N/mm 2 ) concretes made with Portland-composite and composite cements, CEM II/B-M and CEM V/A respectively, and partially substituted coarse recycled (RA) and washed recycled glass sand (RGS), 25% and 15% respectively, aggregates was investigated. The loss of workability was found to be larger for particularly CEM V/A and recyled aggregate concrete (RAC) mixes. Studies of hardened concrete properties, comprising bulk engineering properties (compressive cube and cylinder strength, flexural strength, drying shrinkage) and durability (initial surface absorption) showed enhanced performance for CEM II/B-M and CEM V/A mixes of equivalent strength natural aggregate concrete mixes (NAC), except resistance to carbonation. However, the use of CEM II/B-M and CEM V cements in RAC mixes slightly reduced the engineering and durability properties compared to corresponding NAC mixes.Keywords: Carbonation, initial surface absorption, drying shrinkage, fly ash, ground granulated blast-furnace slag, silica fume, recycled glass sand, coarse recycled aggregate Bullet points:Use of CEM II/B-M and CEM V/A cements and coarse recycled aggregates and recycled glass sand in concrete production increased the required superplasticizer demand to achieve the similar consistency.CEM II/B-M cement recycled aggregate concrete mixes indicated either similar or slightly better loss of workability over time compared to corresponding CEM I cement RAC mix.The partial substitution of natural coarse and fine aggregates by 25% coarse recycled and 15% recycled glass sand aggregates reduced the compressive cube strength of concrete approximately by 10%.Recycled aggregates concrete mixes showed dramatically lower compressive cylinder strength results compared to conventional natural aggregate concrete mixes.Drying shrinkage results showed that the contribution of pozzolanic reactions for Portlandslag and composites cement concretes takes place after 14 days.CEM II/B-M cement mixes indicated lower ISAT-10 values as the design strength class increased.Carbonation penetration results showed improvement as the design strength increased for the same cement type concrete mixes.

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“…Based on the above properties, fly ash can be mixed with cement as a helpful additive to prepare concrete and CPB [10,11]. Senapati and Mishra [12] found that the addition of bottom ash fractions to fly ash slurry at a given solid concentration had a beneficial effect on reducing the pumping power requirement.…”

Section: Introduction C Ement Paste Backfilling (Cpb) For Coal Min-mentioning

confidence: 99%

Effects of Fly Ash Content on Properties of Cement Paste Backfilling

Qi¹,

Feng²,

Zhāng³

et al. 2015

JRST

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ABSTRACT:Fly ash has been considered as an ideal raw material component of cement paste backfilling (CPB) due to its good pozzolanic activity. In this study, the effects of fly ash content (340-420 kg/m 3 ) on the compressive strength, resistivity and microscopic characteristics of CPB were investigated. The results indicated that at the early curing age, the resistivity decreased with increasing fly ash content, while the compressive strength did not vary significantly; at the curing times of 7 d, 14 d and 28 d, the compressive strength exhibited an increasing trend because of the higher content of reaction products and the compaction of pore structure, and the resistivity also increased due to the decreased ionic concentrations of pore solution and the greater resistance to transporting current through the pore network system. Apparently, there existed a linear relationship between the compressive strength and the resistivity of CPB samples.

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Mechanical and durability properties of self consolidating high performance concrete incorporating natural zeolite, silica fume and fly ash

Cited by 287 publications

References 24 publications

Effect of Natural Zeolite-Pozzolan on Compressive Strength of Oil-Polluted Concrete Marine Structures

Effect of Natural Zeolite-Pozzolan on Compressive Strength of Oil-Polluted Concrete Marine Structures

Portland-composite and composite cement concretes made with coarse recycled and recycled glass sand aggregates: Engineering and durability properties

Effects of Fly Ash Content on Properties of Cement Paste Backfilling

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