Macroscopic mechanical properties and microstructure characteristics of steel slag fine aggregate concrete

Xue, Gang; Fu, Qian; Xu, Sheng; Li, Jingjun

doi:10.1016/j.jobe.2022.104742

Cited by 14 publications

(8 citation statements)

References 55 publications

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“…In general, the axial compressive/flexural stiffness of the SSC filled steel SHS members can be accurately predicted by the superposition method. (a) Test of cylinders [37] (c) Test of prisms [38] (d) Test of prisms [39] Fig.…”

Section: Discussionmentioning

confidence: 99%

“…The limited studies on the constitutive (𝜎 c − 𝜀 c ) model of the SSC under compression [36][37][38][39] indicated that, compared with the relevant OC, the modulus of elasticity, peak stress and peak strain of the SSC were increased, and the increasing amplitude was mainly related to the mass substitution rate of SSA. Simultaneously, the peak stress of the engineering 𝜎 c − 𝜀 c model of concrete is usually connected with the compressive strength.…”

Section: Finite Element (Fe) Modelsmentioning

confidence: 99%

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Static performance of steel slag concrete filled steel square hollow section members

Yang

Zhang

2023

Journal of Constructional Steel Research

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Section: Discussionmentioning

confidence: 99%

Section: Finite Element (Fe) Modelsmentioning

confidence: 99%

Static performance of steel slag concrete filled steel square hollow section members

Yang

Zhang

2023

Journal of Constructional Steel Research

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“…Proper handling of scrap tires is an environmental issue that requires attention. In order to alleviate the shortage of resources, solid waste is widely utilized in concrete, as demonstrated by research on the frost resistance of concrete prepared using nano-modified recycled aggregate [4] and research on the macroscopic and microscopic properties of steel slag concrete prepared using steel slag instead of fine aggregates [5]. The preparation of rubber concrete using rubber chips opens up a new channel for the resource utilization of waste tires [3].…”

Section: Introductionmentioning

confidence: 99%

Axial Compression Damage Model and Damage Evolution of Crumb Rubber Concrete Based on the Energy Method

Guo,

Xue,

2024

Buildings

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The current constitutive model and damage evolution law of crumb rubber concrete (CRC) were obtained by fitting and changing parameters based on the normal concrete model. However, this model does not accurately reflect the characteristics of the material. In this paper, we studied the energy dissipation in the failure process of CRC to derive the constitutive model and damage evolution law of CRC based on the energy method. Four substitution rates of 5%, 10%, 15%, and 20% were selected, and the rubber concrete prism was prepared by replacing the natural fine aggregate with the same volume of crumb rubber aggregate. After that, uniaxial compressive tests were conducted. The energy lost due to the damage was calculated and analyzed, and the energy method was used to establish the damage evolution law and damage model of the crumb rubber concrete. The results demonstrated that the Guo Zhenhai damage model, which is based on the energy method, can more effectively explain the crumb rubber concrete stress–strain full curve, and the energy consumed as a result of the damage exhibits a growing and then reducing pattern with the increase in rubber doses. When the energy-based method is used, the Guo Zhenhai damage evolution model is similar to the damage evolution law calculated using the SIR damage evolution model. During uniaxial compression damage, rubber concrete with various rubber dosages demonstrated varying energy absorption in different deformation phases. When the rubber particle content was 10%, the energy absorption capacity of the specimen was 6.9% higher than that of normal concrete.

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“…Slag management must be sustainable if the steel industry is to have a minor negative environmental impact. To lessen the quantity of the trash that ends up in landfills, efforts are being made to reuse slag for use in construction or to use it in the production of cement or other building materials [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Use of marble dust and linz-donawitz slag for the production of pervious concrete

Singh,

Kaur,

Singh

2023

IOP Conf. Ser.: Mater. Sci. Eng.

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Nowadays, the development of infrastructure is in full swing, which exploits natural resources and causes environmental pollution. Furthermore, cement is the most essential commodity for construction material mainly concrete, and its production is rapidly increasing to fulfil the demand for construction. The cement production is regarded as the one of the key causes of CO2 emissions, which adversely affect the atmosphere by causing global warming. In addition to this, the ecosystem may suffer from marble quarrying and construction material processing. Nonetheless, waste marble can be used as a by-product if managed in accordance with regional, national, and international environmental laws. On the other hand, Currently, LD slag is disposed of in landfills, which exacerbates the scarcity of available land and contaminates groundwater through the leaching of heavy metals. The waste materials have the potential to be used in the development of infrastructure materials. The infrastructure development has aggravated the issue of rainwater runoff and flash flooding in rainy seasons because of inappropriate drainage. The elimination of sand in pervious concrete reduces its strength performance its practical applications are still limited. This study is aimed toward the permeability improvement of conventional pavement concrete by the implementation of pervious concrete and also to improve its strength characteristics. In this study, an attempt has to be made to replace the cement with marble dust up to a replacement level of 0% to 20% with an interval of 5%. Also, natural aggregate is replaced with Linz-Donawitz (LD) slag by 5%, 15%, 25%, and 35%. From the study, it is found that the use of marble dust and LD slag improves the strength properties, but reduces the permeation properties.

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Macroscopic mechanical properties and microstructure characteristics of steel slag fine aggregate concrete

Cited by 14 publications

References 55 publications

Static performance of steel slag concrete filled steel square hollow section members

Static performance of steel slag concrete filled steel square hollow section members

Axial Compression Damage Model and Damage Evolution of Crumb Rubber Concrete Based on the Energy Method

Use of marble dust and linz-donawitz slag for the production of pervious concrete

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