Durability of slag waste incorporated steel fiber-reinforced concrete in marine environment

Kim, Seungwon; Kim, Yongjae; Usman, Muhammad; Park, Cheolwoo; Hanif, Asad

doi:10.1016/j.jobe.2020.101641

Cited by 35 publications

(16 citation statements)

References 42 publications

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“…To solve the complexity of the use of RA in new concrete safely, some researchers proposed new mixture prescriptions including mineral additions (i.e., silica fume (SF) [ 3 , 4 ], ground granulated blast furnace slag (GGBS) [ 5 , 6 ], metakaolin [ 7 ], fly ash (FA) [ 8 , 9 , 10 , 11 ], fibers with/without mineral addition (i.e., polypropylene [ 9 ], polypropylene + SF [ 12 ], steel fiber + SF [ 4 ], basalt fiber [ 13 , 14 ], basalt fiber + nano-silica [ 15 ], waste-plastic strip + FA [ 16 ], steel fiber + FA [ 17 ], steel fiber + GGBS [ 18 ], glass fiber + FA [ 19 ] or redefining mixing method (i.e., Equivalent Mortar Volume Method (EMV) [ 20 , 21 ], two stage mixing method [ 22 ]. The suggestions presented satisfactory results and gave confidence to mix designers of RAC.…”

Section: Introductionmentioning

confidence: 99%

Mineral Addition and Mixing Methods Effect on Recycled Aggregate Concrete

Dilbas

Güneş

2021

Materials

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This paper presents influence of treatment and mixing methods on recycled aggregate concretes (RAC) designed regarding various techniques. Absolute Volume Method (AVM) according to TS 802, Equivalent Mortar Volume Method (EMV), silica fume (SF) as a mineral addition were considered in the design of concretes. In total, four groups of concretes were produced in the laboratory: 1) natural aggregate concrete (NAC) designed with AVM as control concrete, 2) RAC designed with AVM as control RAC, 3) RAC with SF as a mineral addition designed with AVM as treated RAC and 4) RAC designed with EMV as treated RAC. The tests were performed at 28th days and the statistical analysis were made on the test results. According to the results, EMV and SF increased the compressive strength of concretes and this resulted an increase in the strength class of concrete. A significant statistical difference between the concretes were determined. According to multiple comparison analysis, it was found that especially there was a significant relationship among NAC, RAC and RAC-EMV. In addition, it was recommended that EMV and AVM with 5% SF could be used in the design of RAC rather than AVM only to achieve the target strength class C30/37.

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Section: Introductionmentioning

confidence: 99%

Mineral Addition and Mixing Methods Effect on Recycled Aggregate Concrete

Dilbas

Güneş

2021

Materials

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“…Concrete strength was the macro reflection of internal micro compactness and pore structure. High compressive strength often required the paste to have a dense structure, while the transmission performance of dense paste was low, so the chloride ion diffusion rate was slow, and its diffusion coefficient was small [8,[14][15][16][17].…”

Section: Rapid Chloride Diffusion Coefficientmentioning

confidence: 99%

Influence of waste calcareous rock powder on concrete transmission performance

Cheng

2021

E3S Web Conf.

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Reuse of stone powder formed in the production of manufactured sand is of great significance to environmental protection and resource utilization. In this paper, the waste calcareous rock powder formed in the manufactured sand production line was added into the concrete by 6%, 9%, 12% and 15%, and the total weight of manufactured sand and rock powder was controlled to be constant to prepare C30 and C40 environment-friendly manufactured sand concrete. The influence of rock powder on the compressive strength and transmission performance of concrete was analyzed. It was found that with the increase of stone powder content, the compressive strength of fresh paste and C30 concrete first increased and then decreased, while the concrete transmission performance and the compressive strength of C40 concrete continued to decline. It was suggested that the content of rock powder should not exceed 9%.

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“…It has been reported that one ton of clinker production emits 850 kg of CO 2 [ 6 , 7 ]. To make SCC economical as well as durable, many researchers have recommended mineral admixtures such as fly ash [ 8 ], silica fumes [ 9 ], blast furnace slag [ 10 , 11 ], rice husk ash [ 12 , 13 ], bentonite [ 14 ], limestone powder [ 15 ], waste clay products [ 16 ], and copper slag [ 17 ] to be used as cement replacement. When mineral admixtures are added to the concrete as a cement replacement, they either act as a pozzolanic agent or an inert filler material to change the properties of the concrete depending on the nature of the mineral admixture.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

et al. 2021

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The huge amount of solid waste from the brick manufacturing industry can be used as a cement replacement. However, replacement exceeding 10% causes a reduction in strength due to the slowing of the pozzolanic reaction. Therefore, in this study, the pozzolanic potential of brick waste is enhanced using ultrafine brick powder with hydrated lime (HL). A total of six self-compacting paste mixes were studied. HL 2.5% by weight of binder was added in two formulations: 10% and 20% of waste burnt brick powder (WBBP), to activate the pozzolanic reaction. An increase in the water demand and setting time was observed by increasing the replacement percentage of WBBP. It was found that the mechanical properties of mixes containing 5% and 10% WBBP performed better than the control mix, while the mechanical properties of the mixes containing 20% WBBP were found to be almost equal to the control mix at 90 days. The addition of HL enhanced the early-age strength. Furthermore, WBBP formulations endorsed improvements in both durability and rheological properties, complemented by reduced early-age shrinkage. Overall, it was found that brick waste in ultrafine size has a very high degree of pozzolanic potential and can be effectively utilized as a supplementary cementitious material.

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Durability of slag waste incorporated steel fiber-reinforced concrete in marine environment

Cited by 35 publications

References 42 publications

Mineral Addition and Mixing Methods Effect on Recycled Aggregate Concrete

Mineral Addition and Mixing Methods Effect on Recycled Aggregate Concrete

Influence of waste calcareous rock powder on concrete transmission performance

Utilization of Solid Waste from Brick Industry and Hydrated Lime in Self-Compacting Cement Pastes

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