Fine-Grained Concrete of Composite Binder

Fediuk, Roman; Pak, A A; Kuzmin, D. E.

doi:10.1088/1757-899x/262/1/012025

Cited by 51 publications

(29 citation statements)

References 10 publications

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“…The density of sulfur increases with decrease in temperature as shown in Figure 6 . It is reported that as the temperature increases, the polymerization form will be changed from 8 membered rings of sulfur atoms to a long chain with around 10 6 million atoms which this new polymerization shape reduces the density of sulfur [ 77 ]. However, there is a constant temperature at which the polymerization of sulfur changes its several properties (like viscosity and density).…”

Section: Properties Of Sulfurmentioning

confidence: 99%

“…Liquid sulfur has a dynamic viscosity in the range of (6.5–11) × 10 −3 Pa⋅s for the temperature range of 120–155 °C (i.e., sulfur is an easily mobile fluid). This allows for the adjustment of the rheology of sulfur materials during heat treatment [ 77 ]. The maximum temperature for working with sulfur is 159 °C, then the polymerization of cyclo-octa sulfur begins with the formation of catena-polymers and an increase in viscosity several thousand times to 93.3 Pa·s at 187 °C [ 121 ].…”

Section: Sulfur In the Concrete Industrymentioning

confidence: 99%

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A Critical Review on the Properties and Applications of Sulfur-Based Concrete

et al. 2020

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The incessant demand for concrete is predicted to increase due to the fast construction developments worldwide. This demand requires a huge volume of cement production that could cause an ecological issue such as increasing the rates of CO2 emissions in the atmosphere. This motivated several scholars to search for various alternatives for cement and one of such alternatives is called sulfur-based concrete. This concrete composite contributes to reduce the amount of cement required to make conventional concrete. Sulfur can be used as a partial-alternate binder to Ordinary Portland Cement (OPC) to produce sulfur-based concrete, which is a composite matrix of construction materials collected mostly from aggregates and sulfur. Sulfur modified concrete outperforms conventional concrete in terms of rapid gain of early strength, low shrinkage, low thermal conductivity, high durability resistance and excellent adhesion. On the basis of mentioned superior characteristics of sulfur-based concrete, it can be applied as a leading construction material for underground utility systems, dams and offshore structures. Therefore, this study reviews the sources, emissions from construction enterprises and compositions of sulfur; describes the production techniques and properties of sulfur; and highlights related literature to generate comprehensive insights into the potential applications of sulfur-based concrete in the construction industry today.

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Section: Properties Of Sulfurmentioning

confidence: 99%

Section: Sulfur In the Concrete Industrymentioning

confidence: 99%

A Critical Review on the Properties and Applications of Sulfur-Based Concrete

et al. 2020

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“…It is known that regulated structure formation of hardening cement pastes results in an increase in concrete durability [ 31 , 32 , 33 ]. Control of matrix structure formation allows for increasing the physical and mechanical characteristics of lightweight concrete based on OPC or on alkali-activated binders [ 34 , 35 , 36 , 37 , 38 ].…”

Section: Introductionmentioning

confidence: 99%

Supersulfated Cement Applied to Produce Lightweight Concrete

et al. 2021

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The physical and mechanical characteristics of expanded-clay lightweight concrete based on a supersulfated binder in comparison with lightweight concrete based on ordinary Portland cement were studied. In replacing CEM 32.5 with a supersulfated binder of 6000 cm2/g specific surface, one can increase the tensile strength in bending up to 20% and can increase the ratio of the tensile strength in bending to the compressive strength that indicates the crack resistance increase of concrete. Compressive strengths at the age of 28 days were equal to 17.0 MPa and 16.6 MPa for the supersulfated binder of 3500 cm2/g specific surface and CEM 32.5, respectively. Shrinkage deformation of hardening concrete, indicators of fracture toughness, frost resistance, and thermal conductivity were determined during the experimental works. The coefficient of thermal conductivity decreased up to 12% compared to the use of CEM 32.5. An enhancement in concrete properties was associated with the increase of supersulfated binder fineness.

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“…Papers in the field of gypsum binders, materials, and products, as well as favorable environmental, technical, and economic aspects of the production and use of these materials indicate that these are all prerequisites for widespread use in construction [ 8 , 9 , 10 , 11 ]. In this regard, the development of effective quick-hardening building composites, obtained using new types of available raw materials with improved performance characteristics, is required [ 12 , 13 ]. These requirements are met by water-resistant and frost-resistant gypsum-cement composites, which can reduce the deficit of wall materials, replace energy-intensive cement concrete and shorten the construction time of buildings [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Performances of the Gypsum-Cement Fiber Reinforced Composite (GCFRC)

et al. 2020

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The novelty of this paper lies in the identification of the scientific patterns of the influence of thermal power plant waste (TPPW) on the hydration mechanism and the structure of the gypsum-cement binder (GCB). The classification of raw materials for the production of GCB has been developed taking into account the genesis, which contributes to the prediction of the properties of composites. The features of the hydration phase formation and hardening of GCB have been studied taking into account the chemical, structural and morphological features of fly ash and slag. In addition, the microstructural, morphological, and thermal properties of the cured binders at a 28 day cure were determined. For the first time, scientific data on the properties of gypsum-cement fiber-reinforced composite using TPPW and microfiber have been obtained. The results show that the synergistic effect of gypsum-cement binder, TPPW, and polyamide or basalt microfiber improves the physicomechanical properties of a 28 day cured binder: compressive strength of 20 MPa, flexural strength of 8.9 MPa, and softening coefficient 0.87.

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Fine-Grained Concrete of Composite Binder

Cited by 51 publications

References 10 publications

A Critical Review on the Properties and Applications of Sulfur-Based Concrete

A Critical Review on the Properties and Applications of Sulfur-Based Concrete

Supersulfated Cement Applied to Produce Lightweight Concrete

Improvement of Performances of the Gypsum-Cement Fiber Reinforced Composite (GCFRC)

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