Cellular Concretes Based on Nanostructured Perlite Binder

Pavlenko, Natalia Viktorovna; Строкова, В.; Cherevatova, A. V.; Netsvet, Daria Dmitrievna; Miroshnikov, E. V.

doi:10.4028/www.scientific.net/amm.496-500.2383

Cited by 11 publications

(9 citation statements)

References 1 publication

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“…The conditions of the binder hydration affect the properties of the obtained products. Obtaining and preserving the activity of the components of the composite binder during preparation of the mixture is an important factor in obtaining high quality products [6,7,14,17,28]. Therefore, much attention in theory and practice is paid in the technology of autoclaved aerated concrete production to the optimisation of the composition of binder mixture and to choosing the best parameters of concrete hardening to ensure products of maximum strength available for the material with given density.…”

Section: Autoclaved Aerated Concrete Technology Researchmentioning

confidence: 99%

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Review of selected aspects of shaping of physical, mechanical and thermal properties and manufacturing technology of lightweight and ultra-lightweight autoclaved aerated concrete

2023

Archives of Civil Engineering

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The paper provides an overview of selected scientific articles presenting research carried out in recent years on methods for producing autoclaved aerated concrete. Traditional technologies are briefly presented, together with innovative solutions for the production of low-density and ultra-lowdensity materials. In addition to the presentation of the manufacturing methods themselves, the results of research into the properties of the autoclaved aerated concrete obtained and their dependence on the technology used are also presented. A subjective selection and review of articles covering research into the thermal conductivity of concrete, the technological factors influencing them and the ways in which they can be shaped was also carried out. A significant number of the cited articles do not function in the world scientific circulation due to the language barrier (they are mainly in Ukrainian). In the meantime, they contain interesting research results which can inspire further research into the issues discussed concerning the production technology and the thermal and strength properties of autoclaved aerated concrete, with particular emphasis on lightweight and ultra-lightweight concrete.

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Section: Autoclaved Aerated Concrete Technology Researchmentioning

confidence: 99%

“…The technology for the production of autoclaved aerated concrete using nanostructured binder (NB) has been also proposed in [28]. To increase the strength of autoclaved aerated concrete based on NB, the hardening principle based on the effect of "cold sintering" is applied.…”

Section: Autoclaved Aerated Concrete Technology Researchmentioning

confidence: 99%

Review of selected aspects of shaping of physical, mechanical and thermal properties and manufacturing technology of lightweight and ultra-lightweight autoclaved aerated concrete

2023

Archives of Civil Engineering

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“…К таким методам относится математический аппарат струк-турной топологии, позволяющий определять геометрические свойства и уровень организации структур в дискретных системах [12][13][14][15][16]. Опре-деление топологических структурных факторов возможно за счет вы-явления математических зависимостей геометрических параметров волокнистой структуры от пористости и размера пор ячеистобетонных масс на примере пенобетона на основе бесцементного наноструктуриро-ванного вяжущего (НВ) [17][18][19][20][21][22][23].…”

Section: Extended Abstractunclassified

Topological calculation of key parameters of fibre for production of foam concrete based on cement-free nanostructured binder

Kharkhardin¹,

Sivalneva²,

Строкова³

2016

Nanotehnol. stroit.

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“…The current tendency to reorient the building materials industry towards eco-friendly technologies and the development of alternatives to cement binders [1][2][3][4] are primarily caused by the continuous increase in emissions of pollutants into the environment due to the activities of industrial production around the world. Cement production is considered one of the most popular polluting industries in the construction sector.…”

Section: Introductionmentioning

confidence: 99%

Physical, Mechanical and Microstructural Characteristics of Perlite-Based Geopolymers Modified with Mineral Additives

Kozhukhova,

Glazkov,

Ageeva

et al. 2024

J. Compos. Sci.

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One of the promising raw materials for the synthesis of geopolymers is perlite, which is a natural low-calcium aluminosilicate. This research studied the physical, mechanical and microstructural characteristics of perlite-based geopolymers modified with different mineral additives that were prepared using different methods of introducing the alkali components and curing conditions. The experimental results of the consolidated perlite-based geopolymer pastes showed that curing conditions and the method of introducing the alkali component into the geopolymer matrix had a minimal effect on the average density while demonstrating a significant boost in compressive strength. So, after thermal treatment, the compressive strength increased by 0.63 to 11.4 times for the mixes when fresh alkali solution was used and by 0.72 to 12.8 times for the mixes with the 24 h conditioned alkali solution. Maximum-strength spikes from 1.1 MPa to 13.2 MPa and from 0.7 MPa to 9.7 MPa were observed for the mixes with kaolin when prepared with fresh and conditioned alkali solutions, respectively. It was also observed that thermal treatment facilitates the compaction of the matrix structure by 18% and 1% for the non-modified mix and the mix modified with Portland cement. Perlite-based geopolymers modified with Portland cement and citrogypsum demonstrated a significant reduction in the initial and final setting times with both methods of introducing the alkali solution. On the surface of mixes modified with citrogypsum, regardless of the curing conditions and method of introducing the alkali component, an efflorescence substance was observed. The microstructural analysis of the consolidated geopolymer perlite-based pastes containing citrogypsum demonstrated a loose structure and the presence of efflorescence, which can be associated with a retardation in interaction processes between alkali cations and the aluminosilicate component. EDS analysis demonstrated that the presence of such elements as oxygen, sodium and sulfur may indicate the efflorescence of unreacted sodium hydroxide (NaOH), citrogypsum (CaSO4) and the products of their interaction in the form of crystalline hydrates of sodium sulfate (Na2SO4).

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Cellular Concretes Based on Nanostructured Perlite Binder

Cited by 11 publications

References 1 publication

Review of selected aspects of shaping of physical, mechanical and thermal properties and manufacturing technology of lightweight and ultra-lightweight autoclaved aerated concrete

Review of selected aspects of shaping of physical, mechanical and thermal properties and manufacturing technology of lightweight and ultra-lightweight autoclaved aerated concrete

Topological calculation of key parameters of fibre for production of foam concrete based on cement-free nanostructured binder

Physical, Mechanical and Microstructural Characteristics of Perlite-Based Geopolymers Modified with Mineral Additives

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