Synergetics of hardening construction systems

Tolstoy, Alexander; Lesovik, Valery; Glagolev, E.S.; Krymova, A. I.

doi:10.1088/1757-899x/327/3/032056

Cited by 28 publications

(19 citation statements)

References 4 publications

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“…The efficiency of sound reflectors is evaluated by the following features of materials and structures: The surface weight of the cladding [ 64 , 65 ]. In building acoustics, there is a well-known “law of mass”, according to which doubling the mass of a single-layer fence leads to an increase in sound insulation.…”

Section: Types Of Acoustic Insulating Materialsmentioning

confidence: 99%

Acoustic Properties of Innovative Concretes: A Review

et al. 2021

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Concrete is the most common building material; therefore, when designing structures, it is obligatory to consider all structural parameters and design characteristics such as acoustic properties. In particular, this is to ensure comfortable living conditions for people in residential premises, including acoustic comfort. Different types of concrete behave differently as a sound conductor; especially dense mixtures are superior sound reflectors, and light ones are sound absorbers. It is found that the level of sound reflection in modified concrete is highly dependent on the type of aggregates, size and distribution of pores, and changes in concrete mix design constituents. The sound absorption of acoustic insulation concrete (AIC) can be improved by forming open pores in concrete matrices by either using a porous aggregate or foam agent. To this end, this article reviews the noise and sound transmission in buildings, types of acoustic insulating materials, and the AIC properties. This literature study also provides a critical review on the type of concretes, the acoustic insulation of buildings and their components, the assessment of sound insulation of structures, as well as synopsizes the research development trends to generate comprehensive insights into the potential applications of AIC as applicable material to mitigate noise pollution for increase productivity, health, and well-being.

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Section: Types Of Acoustic Insulating Materialsmentioning

confidence: 99%

Acoustic Properties of Innovative Concretes: A Review

et al. 2021

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“…The origin of synergetics dates back to the 1960's and is based on a theoretical physicists' research framework on the self-organization of complex dynamic systems (Haken 1984). Several studies in various academic fields including microbiology, sociology, management, psychology, and public policy have instrumentally advanced the framework application outside the confines of natural sciences (Liening 2014;Qiao et al 2017;Tolstoy et al 2018;Ürge-Vorsatz & Tirado Herrero 2012). For instance, Haken & Portugali (2019) applied urban inter-representation, networks and information adaptation to modelling for addressing urban planning challenges in Portugal based on synergetics theory while Qiao et al 2017, successfully deployed synergetics development and assessment models in addressing problems of urban river systems landscape in China.…”

Section: Literature Study and Theoretical Backgroundmentioning

confidence: 99%

“…The theory's origin can be traced to the physicist Herman Haken. The Theory of Synergetics sometimes also is referred to as Multi-disciplinary Collaboration or Self-emergence Theory with the ability to assess, comprehend and elaborate the inherent complex system changes and pattern formations based on the principles of self-organization (Tolstoy et al 2018). Haken (1980) asserts that understanding and identifying internal system mechanisms and rules attributing to system sustainability is the backbone of synergetics theory.…”

Section: Analysis Framework: Complexity and Synergistic Theorymentioning

confidence: 99%

Synergetics as a Systems Theoretical and Methodological Lens in Structuring Energy Poverty

Inda

Lalk

2020

INCOSE International Symp

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Energy poverty, as part of the energy trilemma, remains a global challenge in the 21st century. More than 1.7 billion people remain without access to modern energy sources while more than 3 billion people rely only on fossil fuel resulting in negative health and environmental impacts. While admittedly modern biomass fueled energy systems benefit from newer technologies their use is still blamed for detrimental effects on social, economic and environmental aspects of human existence. No wonder then that in many parts of the world distributed renewable energy systems show promise in addressing some of the more important issues of energy access challenges, particularly energy poverty and fuel poverty; this is specifically evident in the global south through improved efficiency, effectiveness, access and quality of energy services. Nevertheless, understanding the complexities and subsequent structuring of energy poverty becomes a complex systems issue since energy technology plays a dual role in enhancing and inhibiting energy access. This paper, borrowing from systems thinking theory, applies a synergetic elements framework where the authors attempt to enhance the comprehension and structure of the wicked problem of energy poverty; this is done by developing a conceptual model. The paper continues by showing the critical role played by interactions between socio‐technical system elements, notably those between soft and hard systems. This includes energy poverty depicted in multiple and complex synergetic subsystems, micro and macro elements, exogenous and internal barriers, control parameters and the environment.

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“…The main methods for dispersing CNT are mechanical dispersion (e.g., high-speed ball milling) [13][14][15][16], ultrasonic dispersion [17][18][19][20], electric field induction [21][22][23], surface modification (also called functionalization) [1,24,25], or a combination of these methods. Among the functionalization methods, the most common is by exposing the CNT to a highly acidic environment (e.g., solution of sulfuric and nitric acid) [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Combined Functionalization of Carbon Nanotubes (CNT) Fibers with H2SO4/HNO3 and Ca(OH)2 for Addition in Cementitious Matrix

Batiston

Matos

Gleize

et al. 2021

Fibers

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Acid treatment is commonly used to improve the dispersion of carbon nanotubes (CNT) in a cementitious matrix, but it causes undesired delay on cement hydration kinetics. This work reports a combined CNT functionalization method with H2SO4/HNO3 and Ca(OH)2 for addition in a cementitious matrix. Results showed that the Ca(OH)2 exposure neutralized the active sites generated by acid exposure, compensating the delay in hydration. As a result, CNT exposed to H2SO4/HNO3 for 9 h and further Ca(OH)2 treatment led to equivalent hydration kinetics than un-treated CNT did with improved stability.

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Synergetics of hardening construction systems

Cited by 28 publications

References 4 publications

Acoustic Properties of Innovative Concretes: A Review

Acoustic Properties of Innovative Concretes: A Review

Synergetics as a Systems Theoretical and Methodological Lens in Structuring Energy Poverty

Combined Functionalization of Carbon Nanotubes (CNT) Fibers with H2SO4/HNO3 and Ca(OH)2 for Addition in Cementitious Matrix

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