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

2019 ◽  
Vol 9 (1) ◽  
pp. 299-306 ◽  
Author(s):  
Iga Jasińska
Keyword(s):  
Raw Materials ◽  
Foam Glass ◽  
Volume Density ◽  
Sand Sample ◽  
Glass Cullet ◽  
Heat Conduction Coefficient ◽  
Strength Tests ◽  
The Heat Transfer Coefficient ◽  
White Foam ◽  
Glass Granulate

AbstractSilicate 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.

Research of the Temperature Field Process in the Soil for a Home - Founded on a Foam Glass Granulate

2014 ◽  
Vol 1041 ◽  
pp. 257-260
Author(s):  
Kateřina Kubenková ◽  
Marek Jašek ◽  
Vladan Panovec
Keyword(s):  
Temperature Field ◽  
Raw Materials ◽  
Concrete Slab ◽  
Load Capacity ◽  
Foam Glass ◽  
Building Envelope ◽  
Glass Waste ◽  
Reinforced Concrete Slab ◽  
Thermal Bridges ◽  
Glass Granulate

Foam glass granulate is environmentally friendly, heat-insulating building material which is made from recycled glass waste. It is a very porous material with low density, with good thermal insulation properties, high static load capacity and almost zero water absorption. The paper deals with the research of the temperature field process in the soil under the floor of a passive house built on a reinforced concrete slab foundation with a layer of compacted subsoil using raw materials friendly to the environment in the form of granules of foamed glass. This method of progressive foundation of the building addresses the elimination of thermal bridges at the base and establish a continuous thermal insulating of the building envelope without thermal bridges.

scholarly journals Eco-Compatible Construction Materials Containing Ceramic Sludge and Packaging Glass Cullet

2021 ◽  
Vol 11 (8) ◽  
pp. 3545
Author(s):  
Fernanda Andreola ◽  
Isabella Lancellotti ◽  
Paolo Pozzi ◽  
Luisa Barbieri
Keyword(s):  
Raw Materials ◽  
Construction Materials ◽  
Treatment Plant ◽  
Glass Ceramics ◽  
Chemical Properties ◽  
Linear Shrinkage ◽  
Glass Cullet ◽  
Commercial Glass ◽  
Packaging Glass ◽  
And Chemical Properties

This research reports results of eco-compatible building material obtained without natural raw materials. A mixture of sludge from a ceramic wastewater treatment plant and glass cullet from the urban collection was used to obtain high sintered products suitable to be used as covering floor/wall tiles in buildings. The fired samples were tested by water absorption, linear shrinkage, apparent density, and mechanical and chemical properties. Satisfactory results were achieved from densification properties and SEM/XRD analyses showed a compact polycrystalline microstructure with albite and wollastonite embedded in the glassy phase, similar to other commercial glass-ceramics. Besides, the products were obtained with a reduction of 200 °C with respect to the firing temperatures of commercial ones. Additionally, the realized materials were undergone to leaching test following Italian regulation to evaluate the mobility of hazardous ions present into the sludge. The data obtained verified that after thermal treatment the heavy metals were immobilized into the ceramic matrix without further environmental impact for the product use. The results of the research confirm that this valorization of matter using only residues produces glass ceramics high sintered suitable to be used as tile with technological properties similar or higher than commercial ones.

Complex Protection of Pipelines Using Silicate Materials Based on Local Raw Materials of the Far East

2019 ◽  
Vol 945 ◽  
pp. 46-52 ◽  
Author(s):  
Elena A. Yatsenko ◽  
B.M. Goltsman ◽  
A.V. Ryabova
Keyword(s):  
Oil And Gas ◽  
External Surface ◽  
Raw Materials ◽  
Foam Glass ◽  
Russian Far East ◽  
Far East ◽  
The Far East ◽  
Inner Surface ◽  
Oil And Gas Pipelines ◽  
The Russian Far East

Modern trends in the development of the oil and gas infrastructure of the Russian Far East are considered. The main threats in the operation of oil and gas pipelines are described. The technology of complex protection of pipeline surfaces is proposed. Protection of the inner surface is achieved through the use of silicate enamel coatings, protection of the external surface – through the use of foam glass. On the basis of local silicate raw materials the technology of the described materials is developed, and their main properties are determined. Recommendations on the application of the developed technology for the protection of pipelines are given.

Utilization of Porcelain Tile Polishing Residue

2021 ◽  
Vol 410 ◽  
pp. 699-703
Author(s):  
Valeriya È. Shvarczkopf ◽  
Irina A. Pavlova ◽  
Elena P. Farafontova
Keyword(s):  
Glassy Phase ◽  
Raw Materials ◽  
Foam Glass ◽  
Mixture Preparation ◽  
Cleaning Equipment ◽  
Oil Paints ◽  
Roofing Materials ◽  
Sodium Feldspar ◽  
By Products ◽  
Porcelain Tile

The research focuses on the properties of by-products formed in the production of porcelain stoneware: polishing residue and residue of the mixture-preparation shop. The polishing residue consists of glassy phase (80%), quartz (14%), mullite (5%). Residue of the mixture-preparation shop consists of quartz (~ 18%), muscovite (~ 6.9%), kaolinite (~ 20.5%), calcium-sodium feldspar (~ 51.4%), diopside (~ 2.98%). Polishing residue occurs when polishing porcelain stoneware to create a glossy surface and when polishing the side faces of porcelain stoneware to obtain accurate tile geometry. The particle size of the polishing residue is less than 0.2 mm, and the residue of the mixture-preparation shop is less than 40 microns. Residue of the mixture-preparation shop is formed when cleaning equipment: mills, mixers, slipways, etc. The ways of utilization of by-product are follows: as a filler for the silicate production; for polymer-cement, water-dispersion and oil paints; as a filler for the production of roofing materials, bituminous roofing mastics based on organic binders; raw materials for the production of foam glass materials and products.

Resource-Saving Technologies in the Thermal Insulation-Structural Foam Glass Production

2019 ◽  
Vol 974 ◽  
pp. 356-361
Author(s):  
O.V. Kuznetsova ◽  
N.D. Yatsenko ◽  
A.I. Subbotin ◽  
M.Yu. Klimenko
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Foam Glass ◽  
Scientific Research ◽  
Glass Production ◽  
Environmental Safety ◽  
Resource Saving ◽  
Structural Foam ◽  
Safety Requirements ◽  
Research Areas

The modern building materials market places high demands on heat-insulating and heat-insulating structural materials. In this connection, the issues of developing high-quality building materials obtained on the resource-saving technologies basis allowing to solve two interrelated problems are topical. The first problem is the industrial waste generated and existing stocks disposal. The second is associated with a decrease in the traditional raw materials deficit [1]. These problems solution, combining rational technological solutions, is based on the scientific research achievements in this area, in particular in the foam glass production. The priority scientific research areas in the foam glass materials production are the developments related to the study, the new raw materials use and the production of foam glass mixture compositions on their basis, which provide, along with the necessary performance properties, high environmental safety requirements [2, 3].

Physicochemical Studies of Raw Materials from the Far East Russia for Synthesizing Foam Glass and Protective Enamel Coatings

2019 ◽  
Vol 76 (5-6) ◽  
pp. 235-238 ◽  
Author(s):  
E. A. Yatsenko ◽  
V. A. Smolii ◽  
L. A. Yatsenko ◽  
N. S. Gol’tsman
Keyword(s):  
Raw Materials ◽  
Foam Glass ◽  
Far East ◽  
The Far East ◽  
Physicochemical Studies ◽  
East Russia

Preparation and Properties of Lightweight, High-Strength Insulation Materials Using Fly Ash Floating Beads

2016 ◽  
Vol 697 ◽  
pp. 599-603
Author(s):  
Ya Peng Dai ◽  
Xing Yong Gu ◽  
Wei Xia Dong ◽  
Ting Luo
Keyword(s):  
Compressive Strength ◽  
Heat Conduction ◽  
Fly Ash ◽  
High Strength ◽  
Volume Density ◽  
Particle Sizes ◽  
Heat Conduction Coefficient ◽  
Insulation Materials ◽  
Test Instrument ◽  
Save Energy

In our paper, to save energy conservation and environmental protection, and in view of waste fly ash floating bead with excellent properties such as light and refractory, lightweight insulation materials was prepared using fly ash floating beads as the main materials. Firstly, two different fly ash floating bead contents on the properties of the light and refractory material were investigated. Then, on the basis of the optimum fly ash floating bead content, effects of various different particle sizes and firing temperature on the bulk density, compressive strength and the heat conduction coefficients of the samples were studied. The microstructure of the light-weight refractory materials was characterized by XRD and SEM. The heat conduction coefficient (λ') of the samples were also measured by the self-made test instrument. The experimental results showed that the properties of the as-prepared sample using 80% fly ash floating beads was superior to that of 95 % fly ash floating beads. The optimal volume density of 0.60-1.04 g/cm3, compressive strength of 10.6-39.5 MPa and the heat conduction coefficient of 0.183-0.25 °C·g/ min·cm2 were achieved in the presence of 80% fly ash floating beads with 120-160 particle size at 1200°C-1300°C, which has the potential application in lightweight insulation materials.

MAGNESIUM OXYCHLORIDE CEMENT-BASED COMPOSITE WITH FOAM GLASS USED AS LIGHTWEIGHT ADMIXTURE

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Adam Pivák ◽  
Šimon Marušiak ◽  
Martina Záleská ◽  
Zbyšek Pavlík ◽  
Milena Pavlíková
Keyword(s):  
Raw Materials ◽  
Foam Glass ◽  
High Strength ◽  
Mineral Admixture ◽  
Basic Material ◽  
Thermal Insulating ◽  
Magnesium Oxychloride ◽  
Magnesium Oxychloride Cement ◽  
Whole Life Cycle ◽  
Oxychloride Cement

In this paper, foam glass was used as an aggregate in magnesium oxychloride cement (MOC)-based mixtures. Magnesium oxychloride cement is known as a non-hydraulic, high-strength, and fire-resistant binder that can bond large amounts of miscellaneous fillers. In comparison with Portland cement, MOC has a lower environmental impact over its whole life cycle. The purpose of this paper is to modify thermal and hygric properties of MOC-based composites using lightweight mineral admixture, namely foam glass, and hydrophobic agents. The raw materials were analyzed by XRF spectroscopy and their basic properties characterized. The MOC composites were by their basic material, mechanical, thermophysical, and moisture properties described. Considerable improvement of thermal parameters of MOC composite modified with the foam glass and obvious action of surface hydrophobic agent as moisture barrier were observed. The resulting thermal-insulating, lightweight MOC composite with suitable mechanical properties can be used in the construction of thermal insulation surfaces and envelopes, ceiling or wall panels, reducing the energy consumption of buildings.

Effect of Sintering Temperatures on the Reaction-Bonded Si3N4/SiC Composite Ceramics

2011 ◽  
Vol 399-401 ◽  
pp. 331-335 ◽  
Author(s):  
Jun Li ◽  
Wen Jie Yuan ◽  
Shuo Wang ◽  
Hong Xi Zhu ◽  
Cheng Ji Deng
Keyword(s):  
Compressive Strength ◽  
Raw Materials ◽  
Silicon Powder ◽  
Processing Parameters ◽  
Nitrogen Atmosphere ◽  
Particle Sizes ◽  
Composite Ceramics ◽  
Strength Tests ◽  
Different Temperatures ◽  
Microstructure And Mechanical Property

Effect of sintering temperatures on reaction-bonded Si3N4/SiC composite ceramics under pressureless was investigated. Si3N4/SiC composite ceramics were sintered at different temperatures from 1450 to 1700 °C under nitrogen atmosphere by using SiC with different particle sizes, Si and additives Y2O3 as raw materials. The phases, microstructure and mechanical property were characterized by XRD, SEM, and compressive strength tests. The results demonstrated that when the particle gradation consists of silicon carbide of 74 μm (5 wt.%), 44 μm (10 wt.%) and 0.5 μm(35 wt.%) and silicon powder of 74 μm (42 wt.%), the more dense samples with the bulk density of 2.43 g/cm3 and the higher compressive strength of 324 MPa could be obtained at the sintering temperature of 1550 °C for 3h as the optimum processing parameters.

scholarly journals Effect of Waste Glass Powder on Phase, Microstructure and Mechanical Properties of Mullite Based Porous Ceramics with Coal-series Solid Waste as Raw Materials

2020 ◽  
Author(s):  
Wei Lian ◽  
Yan Liu ◽  
Wenjie Wang ◽  
Yangtao Dong ◽  
Sheng Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Glass Powder ◽  
Solid Phase ◽  
Raw Materials ◽  
Porous Ceramics ◽  
Volume Density ◽  
Synthesis Temperature ◽  
Phase Method ◽  
Microstructure And Mechanical Properties ◽  
Solid Phase Method

Abstract Mullite based porous ceramics were successfully prepared by using a solid-phase method with gangue, slime and sawdust as raw materials. The effects of the content of glass powder and calcining temperature on microstructure and mechanical properties of the samples were systematically studied. It is found that glass powder can prevent the formation of Kyanite and reduce the synthesis temperature of mullite. The samples with 4% glass powder have a large amount of mullite calcined at 1150°C for 3h. Meanwhile, alumina in the sample is completely converted into mullite at 1180°C for 3h. Mullite content reaches 64.2wt%. The minimum apparent porosity is 31.22%, while the maximum volume density and diameter shrinkage are 1.74g/cm 3 and 8.48%, respectively. The ratio of pores of <8μm to those of 8~20μm is varied from 7:2 to 2:7, due to the addition of the glass powder. With increasing content of mullite, the flexural properties of the samples are increased from 7.7MPa to 28.36MPa. Therefore, with solid wastes as the resource, the porous ceramics have a bright prospect.

Sign in / Sign up

Export Citation Format

Share Document