Feasibility of ferronickel slag powder for cementitious binder in concrete mix

In recent years, efforts to reduce greenhouse gas emissions have continued worldwide. In the construction industry, a large amount of CO2 is generated during the production of Portland cement, and various studies are being conducted to reduce the amount of cement and enable the use of cement substitutes. Ferronickel slag is a by-product generated by melting materials such as nickel ore and bituminous coal, which are used as raw materials to produce ferronickel at high temperatures. In this study, we investigated the fluidity, microhydration heat, compressive strength, drying shrinkage, and carbonation characteristics of a ternary cement mortar including ferronickel-slag powder and fly ash. According to the test results, the microhydration heat of the FA20FN00 sample was slightly higher than that of the FA00FN20 sample. The 28-day compressive strength of the FA20FN00 mix was approximately 39.6 MPa, which was higher than that of the other samples, whereas the compressive strength of the FA05FN15 mix including 15% of ferronickel-slag powder was approximately 11.6% lower than that of the FA20FN00 mix. The drying shrinkage of the FA20FN00 sample without ferronickel-slag powder was the highest after 56 days, whereas the FA00FN20 sample without fly ash showed the lowest shrinkage compared to the other mixes.

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Experimental study on the strength of soil-cement with additions of mineral powder and ferronickel slag powder

International Journal of Mining and Mineral Engineering ◽

10.1504/ijmme.2020.109632 ◽

2020 ◽

Vol 11 (3) ◽

pp. 218 ◽

Cited By ~ 1

Author(s):

Feng Chen ◽

Shenghao Tong

Keyword(s):

Experimental Study ◽

Slag Powder ◽

Soil Cement ◽

Ferronickel Slag ◽

Mineral Powder

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Experimental study on the strength of soil-cement with additions of mineral powder and ferronickel slag powder

International Journal of Mining and Mineral Engineering ◽

10.1504/ijmme.2020.10031912 ◽

2020 ◽

Vol 11 (3) ◽

pp. 218

Author(s):

Feng Chen ◽

Shenghao Tong

Keyword(s):

Experimental Study ◽

Slag Powder ◽

Soil Cement ◽

Ferronickel Slag ◽

Mineral Powder

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Properties of Polymer Mortar Depending on Replacement Ratio of Ferronickel Slag Powder

Journal of Korea Society of Waste Management ◽

10.9786/kswm.2018.35.1.24 ◽

2018 ◽

Vol 35 (02) ◽

pp. 24-30

Author(s):

Bong-Joo Kim ◽

Ui-In Jung ◽

Sang-Hun Hong ◽

Eun-Gu Kwak

Keyword(s):

Replacement Ratio ◽

Slag Powder ◽

Polymer Mortar ◽

Ferronickel Slag

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Research on C30 Concrete Mix Proportion in Guangdong Province

E3S Web of Conferences ◽

10.1051/e3sconf/202021302039 ◽

2020 ◽

Vol 213 ◽

pp. 02039

Author(s):

Guangxing Lai ◽

Jianli Yin ◽

Junhui Ye ◽

Yujia Chen ◽

Wei Xiao

Keyword(s):

Guangdong Province ◽

Cementitious Materials ◽

Cementitious Material ◽

Bleeding Rate ◽

Slag Powder ◽

Mix Proportion ◽

Concrete Mix ◽

Water Test ◽

The Difference ◽

Bleeding Water

The reasons of C30 concrete bleeding in winter in Guangdong province were studied by collecting the concrete mix proportions of C30 concrete mixing plants in Guangdong, Fujian, Henan, Hunan, Chongqing and Shaanxi regions, the difference between the concrete mix proportions in Guangdong and other regions was investigated. Based on the representative concrete mix proportion in Guangdong province, the concrete bleeding water test was carried out, and the correlation between the amount of different cementing materials and the bleeding rate was investigated. The results showed that compared with other regions, the C30 concrete mix proportion in Guangdong has the lowest total cementitious material, which made it more prone to bleeding. The amount of slag powder and the total amount of cementitious materials have a high correlation with the bleeding rate. With the increase of the amount of slag powder and the total amount of cementitious materials, the bleeding rate decreases.

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