Effects of Bentonite Additives on Autoclaved Sand-Lime Product Properties

Owsiak, Z.; Kostrzewa, Paulina

doi:10.1088/1757-899x/251/1/012021

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…Research on the modi cations subject and the reduction of compressive strength of lime-sand bricks is more and more often encountered [5][6][7]. The modi cation itself of lime-sand products with recycled glass in various forms [8][9][10][11], as well as modi cation with waste materials [12][13][14][15] is already known in literature and practice.…”

Section: Introductionmentioning

confidence: 99%

Effect of foam glass granules fillers modification of lime-sand products on their microstructure

Jasińska

2019

Open Engineering

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Silicate products are products made exclusively from natural raw materials. A relatively high value of the heat transfer coefficient is still considered a fault. This property adversely affects the thermal insulation of buildings and energy consumption, so you should look for materials with a low heat conduction coefficient. One of the ways of obtaining such products can be the use of light, porous fillers in the mass of lime-sand products.Due to the above, particular attention was paid to white foam glass in the form of granules, which is a product of recycling glass cullet. The research was carried out with a granulate size of 0.25-0.5 mm, share of which in the tested samples ranged from 5 to 30%. The obtained results were referred to the tests carried out on basic (lime-sand) sample.The aim of the article is to determine the correctness of the formation of selected usable properties of modified lime-sand products, taking into account changes in their microstructure. The article describes the results of volume density and compressive strength tests of basic samples and the samples modified by using the expanded glass granulate as well as the results of their observations by using of SEM and tests of phase composition obtained from XRD.

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Section: Introductionmentioning

confidence: 99%

Effect of foam glass granules fillers modification of lime-sand products on their microstructure

Jasińska

2019

Open Engineering

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“…One of the effective ways of modifying sand-lime products in terms of improving their strength parameters is the use of ground mineral additives with a high specific surface area, pozzolanic and/or hydraulic properties, in the raw material mixture. An example of such a solution is the use of ground chalcedonite [ 24 , 25 ], ground limestone [ 26 ], dolomite powder [ 27 ], metakaolinite [ 28 ], barium [ 29 ], bentonite [ 30 ], thermally activated Carboniferous shale [ 31 ] and silica fume [ 32 ]. In recent years, the impact of waste glass in silicates has been extensively studied [ 33 , 34 , 35 , 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Waste Basalt Powder Addition on the Microstructure and Mechanical Properties of Autoclave Brick

et al. 2023

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In the production of building materials, there has been an increased interest in the use of by-products and industrial waste in recent years. Such modifications make it possible to solve not only technical and economic problems, but also environmental problems. This article describes the use of basalt powder waste in sand-lime products (silicates). The aim of the study was to manage basalt powder waste and to investigate the changes it causes in sand-lime products. The article describes the planning of the experiment, which directly determines the number of samples and their composition, which was necessary to conducting a full analysis and correctly illustrating the relationships occurring in the samples. Basic tests were carried out: compressive strength, density and water absorption, as well as optical tests and scanning microscopy. Based on the research conducted, it was concluded that the use of basalt powder as a component of sand-lime products has positive effects. Studies show that the best results are achieved with a proportion of powder in the raw material mass of about 10%—the compressive strength reaches almost 30 MPa, which is almost twice that of traditional silicate.

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“…The current research on changing the composition of the sand-lime products is mainly aimed at improving compressive strength or their acoustic properties. The fillers used in the mass of such products included components of both natural [ 16 , 17 ] and chemical origin [ 18 , 19 ]. However, recycled products [ 20 , 21 ], polypropylene mesh [ 22 ], other production wastes and leachate from landfills [ 23 , 24 ] were also taken into account.…”

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity of Sand-Lime Products Modified with Foam Glass Granulate

2021

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Waste glass constitutes a significant part of general waste worldwide. Unfortunately, only a small percentage is recycled. It is, therefore, quite important that it can be applied in the production of construction materials. The main aim of this article is to determine the thermal conductivity of the products modified with granulated foam glass (GFG) (recycled product) of the 0.25–0.5 mm fraction, as well as to indicate dependence of the change in volume density of samples caused by the use of GFG and the change of the thermal conductivity coefficient compared to reference samples. For the purpose of this research, various parameters were examined i.a. volume density, water absorption, determination of the pore size distribution by mercury porosimetry and determination of the heat conduction coefficient with the use of a plate apparatus. The test results were developed on the basis of a mathematical model that determined the influence of the filler on the functional properties of the product. The research has shown that the use of GFG in the sand-lime products will contribute to lowering their thermal conductivity by more than 50% compared to traditional products.

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Effects of Bentonite Additives on Autoclaved Sand-Lime Product Properties

Cited by 6 publications

References 11 publications

Effect of foam glass granules fillers modification of lime-sand products on their microstructure

Effect of foam glass granules fillers modification of lime-sand products on their microstructure

Influence of Waste Basalt Powder Addition on the Microstructure and Mechanical Properties of Autoclave Brick

Thermal Conductivity of Sand-Lime Products Modified with Foam Glass Granulate

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