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Bessmertnyi, V. S.; Lesovik, Valery; Krokhin, V. P.; Puchka, O. V.; Nikiforova, E. P.

doi:10.1023/a:1013963916418

Cited by 12 publications

(6 citation statements)

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“…Aruralasi et al [ 16 ] investigated the effects of admixtures on energy usage during the mixing of ready-mixed concrete. These findings are consistent with previous classic findings acquired by independent authors [ 17 ]. Volokitina et al [ 18 ] examined the hardness of bimetallic wires made from secondary materials used in power line construction.…”

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confidence: 94%

Recyclable Materials for Ecofriendly Technology

Fediuk

Ali

2022

Materials

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This Special Issue (SI), “Recyclable Materials for Ecofriendly Technology,” has been proposed and organized as a means to present recent developments in the field of environmentally friendly designed construction and building materials. For this purpose, dozens of articles were included or considered for inclusion in this SI, covering various aspects of the topic. A comparison of these articles with other modern articles on this topic is carried out, which proves the prospects and relevance of this SI. Furthermore, per the editorial board’s journal suggestion, the second volume of this successful SI is being organized, in which authors from various countries and organizations are invited to publish their new and unpublished research work.

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confidence: 94%

Recyclable Materials for Ecofriendly Technology

Fediuk

Ali

2022

Materials

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“…A screening of quartzite sandstone (QS) from the Lebedinsky mining and processing plant (Russia) was chosen as a fine aggregate for high-strength concrete using 3D-printing technology (Table 4). Its interaction with the surface of the modifier particles and Portland cement clinker ensures the creation of a high homogeneity of the structure, a decrease in stresses in the interfacial transition zone, and an increase in adhesion to the cement paste [73][74][75][76][77]. Quartz sand used in the mortar mixes is shown for comparison.…”

Section: Mortar MIXmentioning

confidence: 99%

Improving the Performances of a Mortar for 3D Printing by Mineral Modifiers

et al. 2022

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Erection of buildings using 3D printing has great potential. However, its mass use for high-rise buildings is hampered by the lack of cement mortars with the required technical characteristics, the most important of which is high plastic strength (in the first minutes after pouring). The significance of the work (novelty) lies in the creation of a composite binder using a mineral modifier obtained by joint grinding up to 500 m2/kg of bentonite clay, chalk, and sand. A comprehensive study of the developed mortars was carried out from the standpoint of the necessary characteristics for volumetric concreting of high-rise thin-walled buildings. A composite binder for high-strength composites (compressive strength up to 70 MPa) has been obtained, which can provide effective mortars for 3D-additive high-rise construction technologies. The influence of the genetic characteristics of the modifier components on the properties of the composite binder has been established. The hydration process in this system of hardening concrete of the optimal composition proceeds more intensively due to the significantly larger specific surface of the mineral modifier components, which act as an active additive and activators of the crystallization of new growths. It has been proven that the features of mortars of high-strength fine-grained composites for 3D-additive technologies of high-rise buildings must meet special properties, such the rheotechnological index and the bearing capacity of the freshly formed layer (plastic strength or dimensional stability). Compared with a conventional mortar, the plastic strength of the developed one increases much faster (in 15 min, it is 762.2 kPa, in contrast to 133.0 kPa for the control composition). Thus, the strength remains sufficient for 3D printing of high-rise buildings and structures.

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“…Researchers have studied and developed modern construction materials exposed to extreme conditions, such as argon for non-metallic materials at high temperatures [8], use of shungisite microfillers with polycarboxylate additives in cement compositions [9], application of micro-steel and propylene fibers applied to ultra-high performance (UHP) concrete for reliability analysis of crack impact resistance [10], and fiber-reinforced polymers (FRP) for reinforcing reinforced concrete structures subjected to high temperatures [11].…”

Section: Introductionmentioning

confidence: 99%

Residual Mechanical Properties and Durability of High-Strength Concrete with Polypropylene Fibers in High Temperatures

et al. 2022

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Investigations into the fire resistance of high-strength concrete (HSC) is extremely important to optimize structural design in construction engineering. This work describes the influence of polypropylene fibers on the mechanical properties and durability of HSC at high temperatures (25, 100, 200, 400, 600 and 800 °C). HSC specimens with 2 kg/m3 composed of polypropylene fibers are tested in a temperature range of 25 to 800 °C, followed by microstructural analysis. In addition, a statistical analysis is designed to identify the effect of factors, namely temperature and polypropylene fibers, and their interactions on mechanical properties and water absorption, electrical resistivity, mass loss and ultrasonic velocity. Most of the properties are improved by the incorporation of fibers, obtaining highly predictable regression models. However, the polypropylene fibers reduce compressive strength but improve the residual mechanical properties up to 400 °C.

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Cited by 12 publications

References 0 publications

Recyclable Materials for Ecofriendly Technology

Recyclable Materials for Ecofriendly Technology

Improving the Performances of a Mortar for 3D Printing by Mineral Modifiers

Residual Mechanical Properties and Durability of High-Strength Concrete with Polypropylene Fibers in High Temperatures

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