Research on engineering properties of cement mortar adding stainless steel reduction slag and pozzolanic materials

Wang, Her-Yung; Tsai, Shen-Lun; Hung, Chang-Chi; Jian, Ting-Yu

doi:10.1016/j.cscm.2022.e01144

Cited by 9 publications

(12 citation statements)

References 49 publications

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“…For the mechanical test part of high-pressure products, bending strength tests were mainly carried out according to CNS 13777, and the test results are shown in Table 6. The results show that when the S/F ratio is 1:1, the dry unit weight is 1.33-1.40 g/cm 3 after drying at 60 • C for 24 h. According to the results of the bending strength test, as the ratio of C/S is 0.35, the proportion of 60% EAF-reducing slag and 40% fly ash shows the best strength, which is 9.97 N/mm 2 . The second is 9.39 N/mm 2 with C/S ratio of 0.35, the proportion of 70% EAF-reducing slag and 30% fly ash.…”

Section: Application Of Inorganic Polymerization Technology To Contro...mentioning

confidence: 97%

“…For the water absorption, dry unit weights, and water absorption length change rate tests of high-pressure products (fiber-cement boards), the tests are shown in Tables 6 and 7. According to the requirements of CNS13777 cement board, when the dry unit weight is 1.1 g/cm 3 , its water absorption rate and water-absorption length change rate are not required in the specification [12]. The dry unit weight is 1.3 g/cm 3 , the water absorption rate is below 33%, and there is no requirement for the change rate of water absorption length.…”

Section: Application Of Inorganic Polymerization Technology To Contro...mentioning

confidence: 99%

“…According to the requirements of CNS13777 cement board, when the dry unit weight is 1.1 g/cm 3 , its water absorption rate and water-absorption length change rate are not required in the specification [12]. The dry unit weight is 1.3 g/cm 3 , the water absorption rate is below 33%, and there is no requirement for the change rate of water absorption length. As for the dry unit weight of 1.5 g/cm 3 , the water absorption rate is below 28%, and the change rate of water absorption length needs to be 0.25%.…”

Section: Application Of Inorganic Polymerization Technology To Contro...mentioning

confidence: 99%

“…The main components of the reduced slag are CaO and SiO 2 . The potential of the component as raw materials in cement boards is used to achieve the original role of cement in bonding other materials [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

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A Study on Fire Retardant and Soundproof Properties of Stainless Steel EAF Reducing Slag Applied to Fiber Reinforced Cement Boards

et al. 2023

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In recent years, cases of the improper utilization of steel furnace slag have been widely reported, resulting in a crisis of nowhere for recycled resources such as inorganic slag. The misplacement of resource materials that originally had sustainable-use value not only has a great impact on society and the environment but also greatly reduces industrial competitiveness. To solve the dilemma of steel furnace-slag reuse, it is critical to find solutions to the stabilization of steelmaking slag under the innovative thinking of the circular economy. In addition to enhancing the reuse value of recycled resources, the balance between economic development and environmental impact is also crucial. The high-performance building material could provide a solution based on a high-value market. With the development of society and the increasing requirements for quality of life, the requirements for the soundproof and fireproof performance of lightweight decorative panels common in cities have gradually become popular. Therefore, the high performance of fire retardant and soundproofing could be the main development focus of high-value building materials to ensure circular economic feasibility. This study continues the research results of the application of inorganic re-cycled engineering materials in recent years, and the application of electric-arc furnace (EAF)-reducing slag to the development of base materials for reinforced cement boards, in order to complete the development of high-value panels with fireproof and sound-insulation properties in line with the engineering characteristics of the boards. The research results showed the optimization of the proportions of the cement boards with EAF-reducing slag as a raw material. The proportions of EAF-reducing slag to fly ash at ratios of 70:30 and 60:40 all met the requirements of ISO 5660-1 Class I flame resistance; the sound transmission loss in the overall frequency band can reach more than 30 dB, which is higher by 3–8 dB or more than the same board with similar specifications (such as 12 mm gypsum board) in the present building-materials market The products could be developed into building partitions and ceiling decoration boards with high performance in terms of fire retardant and soundproofing values, and also reduce the use of natural raw materials by more than 35%. The results of this study could meet environmental compatibility targets and contribute towards greener buildings. This model of circular economics would achieve energy reduction, emissions reductions, and be environmentally friendly.

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Section: Application Of Inorganic Polymerization Technology To Contro...mentioning

confidence: 97%

Section: Application Of Inorganic Polymerization Technology To Contro...mentioning

confidence: 99%

Section: Application Of Inorganic Polymerization Technology To Contro...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Study on Fire Retardant and Soundproof Properties of Stainless Steel EAF Reducing Slag Applied to Fiber Reinforced Cement Boards

et al. 2023

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“…Many researchers have investigated the performance of industrial by-products such as palm oil clinker, bottom ash, corncob ash, steel slag, copper slag, and fine rubber crumb as a fine aggregate in concrete. Some recycled aggregates that perform similar to fine aggregates are recycled glass, recycled brick, recycled concrete, recycled rubber, recycled plastic, and recycled ceramic [21][22][23]. Many new materials have been proposed to replace river sand, which includes quarry dust, manufacturing sand, marble dust, granite dust, crushed sand, and sandstone, all of which are non-sustainable sources.…”

Section: Introductionmentioning

confidence: 99%

Elucidation of Microstructural and Mechanical Properties of Coconut Husk Mortar as a Sustainable Building Material for Ferrocement

2023

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The main objective of this study is to use coconut husk to produce mortar for ferrocement. Mortar mix proportions are selected per ACI codes’ recommendation and the WRD Handbook. Four types of mortars: Cement and River Sand mortar (CSM), Cement, River Sand and Steel fibre mortar (CSSFM), Cement and Coconut Husk mortar (CCHM), and Cement, River Sand (60%), Coconut Husk (40%), and Steel fibre mortar (CSCHSFM) are used for this study Microstructural studies like SEM, EDX, XRD, and FTIR analysis on cement mortar constituents and mortar mixes are studied and reported. At 3, 7, and 28 days tests of hardened mortar, such as compressive, split tensile, flexural strength, and impact strength resistance, were studied. Test results revealed that the coconut husk is innovative and sustainable and could be an alternative fine aggregate that can be utilized in place of river sand, which in turn can be used for mortar production. Since it has a lesser density which proves to be an advantage for developing lightweight mortar, it can be used for ferrocement applications.

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Mechanical Properties of Silica Fume-Based Mortars Alkaline Activated by NaOH

Caldas

Azevedo²,

Marvila

2023

The Minerals, Metals &Amp; Materials Series

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Research on engineering properties of cement mortar adding stainless steel reduction slag and pozzolanic materials

Cited by 9 publications

References 49 publications

A Study on Fire Retardant and Soundproof Properties of Stainless Steel EAF Reducing Slag Applied to Fiber Reinforced Cement Boards

A Study on Fire Retardant and Soundproof Properties of Stainless Steel EAF Reducing Slag Applied to Fiber Reinforced Cement Boards

Elucidation of Microstructural and Mechanical Properties of Coconut Husk Mortar as a Sustainable Building Material for Ferrocement

Mechanical Properties of Silica Fume-Based Mortars Alkaline Activated by NaOH

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