Influences of Firing Process System on Foam Glass Properties

2013 ◽  
Vol 721 ◽  
pp. 258-261 ◽  
Author(s):  
Qing Wang ◽  
Ning Wang ◽  
Zhao Yang Ding ◽  
Tao Jun Wu
Keyword(s):  
Sintering Temperature ◽  
Raw Materials ◽  
Foam Glass ◽  
High Strength ◽  
Firing Process ◽  
Specific Strength ◽  
Process System ◽  
Powder Burning ◽  
Burning Method ◽  
Foaming Temperature

Waste glass and polishing waste residue as raw materials were used to make foamed glass. The preparation of firing technology was optimized and the powder burning method was used, by which the foam glass possess good performance, such as light weight, high strength, low thermal conductivity. Results show that sintering temperature and foaming temperature influence the specific strength of foam glass greatly, and the optimal preparation process of foam glass was confirmed: sintering temperature is 1050°C, foaming temperature is 870°C minutes, foaming time is 35min.

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.

The Improvement Method Design for β-SiC Recrystallization

2011 ◽  
Vol 55-57 ◽  
pp. 578-581
Author(s):  
Bing Quan He ◽  
Wen Ting Chen ◽  
Yang Zheng
Keyword(s):  
Production Process ◽  
Fine Particles ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Low Cost ◽  
Impact Resistance ◽  
High Strength ◽  
Sic Ceramics ◽  
High Oxidation Resistance

Sintered SiC ceramics with difficulty, and its production process and production are more expensive, lower sintering temperature of SiC ceramics and look for new low-cost production process is the focus of materials research workers. Re-crystallization of SiC components of the raw materials requirements of high purity, can not add sintering aids, sintering temperature up to about 2450°C). In this paper, by improving and optimizing the existing production process, to lower the sintering temperature of the new methods and ideas, the study shows that: β-SiC will be added to the sintered α-SiC slurry, and the best particle size ratio of α: β = 15:1 mixture, at the same time, according to re-crystallization of SiC sintering theory, the fine particles (β-SiC, has played the role of sintering agent) adsorption in the coarse particle (α-SiC, the role of the support skeleton) and can greatly reduce the SiC Sintering temperature (50-100°C), and to improve the purity of α-SiC, the most economical way to prepare a high-density, high oxidation resistance, high impact resistance, high strength, high mechanical properties of recrystallized SiC powder .

scholarly journals Volcanic Mud Incorporating Paper Sludge as Raw Materials for Lightweight Aggregates

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1511
Author(s):  
Chung-Ho Huang ◽  
Hao-Yu Fang ◽  
Han Chen
Keyword(s):  
Water Absorption ◽  
Sintering Temperature ◽  
Particle Density ◽  
Raw Materials ◽  
Lightweight Aggregate ◽  
Firing Process ◽  
Paper Sludge ◽  
Crushing Strength ◽  
Southern Taiwan ◽  
Sintering Mechanisms

This study assessed the use of volcanic mud collected from southern Taiwan and the incorporation of paper sludge for manufacturing lightweight aggregate (LWA). The firing process of the raw materials and related sintering mechanisms, including sintering temperature and time, were investigated. LWA was manufactured at sintering temperatures ranging from 950 to 1275 °C with soaking times from 2 to 15 min, and preheating temperatures ranged between 500 and 700 °C with soaking times from 5 to 15 min. Using volcanic mud and mixed sludge (volcanic mud with added paper sludge) resulted in the successful manufacture of various qualified LWAs with particle density ranging from 973 to 1950 g/cm3, water absorption from 6.2 to 20.0%, and crushing strength from 2.2 to 15.8 MPa.

Preparation of Foam Glass Composite from Iron Ore Tailing

2010 ◽  
Vol 168-170 ◽  
pp. 1653-1657
Author(s):  
Shu Hui Zhang ◽  
Zhi Qiang Kang ◽  
Qing Lu
Keyword(s):  
Bulk Density ◽  
Compression Strength ◽  
Iron Ore ◽  
Sintering Temperature ◽  
Foam Glass ◽  
X Ray Diffraction ◽  
Glass Composite ◽  
Iron Ore Tailing ◽  
Amorphous Glass ◽  
Foaming Temperature

Foam glass composite with good capabilities was prepared from iron ore tailings as the main material by two steps. The phase composition and microstructure were determined by X-ray diffraction and scanning electron microscopy. The effects of foaming temperature and sintering temperature on sample capabilities were studied by determining sample bulk density and compression strength. The results show that the main phase of basis glass powder is amorphous mineral. The foam glass composite with enclosed circle pore mainly concludes Ca[(Fe,Mg)][SiO3]2 and amorphous glass. The diameter size of pore is wide and distributes evenly. The foam glass composite, whose compression strength is 62.25MPa, and bulk density is 2.056 g/cm3, has fine complex capabilities. With the increase of foaming temperature the sample pore diameter size raises, while bulk density and compression strength reduces. The bulk density and compression strength all diminish firstly and raise subsequently with the sintering temperature increasing. The optima temperature parameters are foaming temperature of 900~950 and sinter temperature of 1100 .

Production of Foam Glass Materials from Silicate Raw Materials by Hydrate Mechanism

2020 ◽  
Vol 299 ◽  
pp. 293-298
Author(s):  
Boris M. Goltsman ◽  
Lyubov A. Yatsenko ◽  
Natalia S. Goltsman
Keyword(s):  
Phase Composition ◽  
Raw Materials ◽  
Foam Glass ◽  
Plastic State ◽  
Optimal Composition ◽  
Batch Preparation ◽  
Hydration Mechanism ◽  
Advantages And Disadvantages ◽  
Oil Pipelines ◽  
Foaming Temperature

The ways of external protection of oil pipelines, their advantages and disadvantages were described. A method for protecting pipes using foam glass products, based on local raw materials, was proposed. The powder technology of the batch preparation and the hydration mechanism of foaming through the interaction of alkali and silica were chosen for this study, based on the existing methods of foaming of silicate raw materials. Compositions of the batch were developed, their foaming was carried out in the temperature range, corresponding to the pyro-plastic state, the effectiveness of the additional introduction of foaming substances was analyzed. The macro-and microstructure of the specimen, as well as their phase composition, were studied. The optimal composition and optimum foaming temperature for the production of foam glass materials were selected.

Study on Preparation of Ceramic Material and its Properties

2014 ◽  
Vol 686 ◽  
pp. 57-60
Author(s):  
Ya Li Liu
Keyword(s):  
Fly Ash ◽  
Red Mud ◽  
Bending Strength ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Porous Ceramic ◽  
High Strength ◽  
Porous Ceramics ◽  
Raw Material ◽  
High Porosity

This paper introduces the classification, properties and application of porous ceramic materials, reviewed preparation of porous ceramics. Taking fly ash and red mud as the main raw material to generate porous ceramics, the paper study the influence of different proportions of raw materials, sintering temperature, porosity of porous ceramic sample rate, bending strength, and microstructure. The results show that, fly ash and red mud proportioning and sintering temperature are the main factors that influence the structure and properties of samples. The 4# sample is a kind of high porosity and high strength quality of porous ceramics.

Firing of Cellular Ceramics from Granulated Foam-Glass

2020 ◽  
Vol 992 ◽  
pp. 265-270
Author(s):  
O.A. Fomina ◽  
А.Yu. Stolboushkin
Keyword(s):  
Raw Materials ◽  
Foam Glass ◽  
Average Density ◽  
Firing Process ◽  
Ceramic Samples ◽  
Three Phase ◽  
Study Results ◽  
Intensive Formation ◽  
Solid Glass ◽  
Cellular Ceramic

It has been presented the study results of the firing process of cellular ceramics from granulated foam glass. The chemical, mineral and granulometric compositions of the raw materials are given. It has been shown the characteristic of ceramic-technological properties of raw materials. The samples were burned from the granulated mixture in the temperature range of 850-1000 ° C. It has been established the change dependence in the physicomechanical properties of cellular ceramic samples on the temperature and firing duration. The results of the study of the macro-and microstructure of cellular ceramics are given. It has been revealed the effect of intensive formation of the pyroplastic phase and the connection between small pores at a temperature of more than 950 ° C. After the enlargement, the cells leave the three-phase ceramic system and it was the increase in the average density of cellular ceramics is 1.4-1.5 times. The influence of a solid glass-ceramic shell along the inner surface of the pores on the decrease in water absorption of cellular ceramics to 6.5-7% is established.

Improved Mechanical Property of Foam Glass Composites Toughened by Mullite Fiber

2013 ◽  
Vol 357-360 ◽  
pp. 1370-1373 ◽  
Author(s):  
Hong Wei Guo ◽  
Zu Xue Mo ◽  
Pan Liu ◽  
Dang Ni Gao
Keyword(s):  
Mechanical Property ◽  
Raw Materials ◽  
Foam Glass ◽  
Flat Glass ◽  
Glass Composites ◽  
Specific Strength ◽  
Sodium Calcium ◽  
Mullite Fiber ◽  
Calcium Silicon ◽  
First Time

The mechanically improved foam glass composite toughened by mullite fiber was prepared by sintering technique, using waste sodium-calcium silicon flat glass powder as main raw materials. In this study, the preparation and properties of the samples were characterized by field-emission scanning electron microscopy (FESEM) and mechanical property test. The specific strength of the composite was defined for the first time, and applied into the investigation of mechanical property. The results show that with the increasing of the content of mullite fiber, the pore size of foam glass tends to be uniform and the obturator structure increased. But too much mullite fiber is added can produce a lot of microporous, flexural strength and density increased with the increase of mullite fiber content, when adding 10% (mass fraction) of mullite fiber, the maximum specific strength can reach 0.012m2/s2.Good correlations between the microstructure (in particular the fiber distribution), the high specific strength and the high modulus of elasticity of mullite fiber.

Effects of Sintering Temperature and Porogen Addition on Properties of Low Cost Porous Mullite Ceramics

2015 ◽  
Vol 655 ◽  
pp. 114-117
Author(s):  
Na Na Xu ◽  
Shu Jing Li ◽  
Yuan Bing Li ◽  
Lin Yuan ◽  
Jin Long Zhang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Low Cost ◽  
High Strength ◽  
High Porosity ◽  
Mullite Phase ◽  
Best Value ◽  
Porous Mullite ◽  
Mullite Ceramics

In the present paper, low cost porous mullite ceramics with high porosity, high strength and low thermal conductivity were fabricated using ceramic waste powder and clay as raw materials, and sawdust as porogen. The correlation of phase composition and physicochemical properties of such porous mullite ceramics were researched by varying sintering temperature and the extra addition of sawdust. The results show that: The ceramics show the best comprehensive properties when the sintering temperature is 1400 oC and the addition of sawdust is 30wt%. The results of SEM and EDS analysis confirm that new mullite phase is generated in the ceramics, which can strengthen the ceramics. And the best value of the bulk density, apparent porosity, cold crushing strength and the thermal conductivity of the prepared ceramics is 0.96g.cm-3,60.7%,5.3MPa and 0.212W·m-1·K-1, respectively.

COMPARATIVE CHARACTERISTICS OF PHYSICAL AND MECHANICAL PROPERTIES OF COMPOSITE MATERIALS AND HIGH-STRENGTH STEEL 30FGSN2A

2020 ◽  
Author(s):  
I.R. Antypes ◽  
◽  
V.V. Zaitsev ◽  
Keyword(s):  
Composite Materials ◽  
High Strength Steel ◽  
Critical Stress ◽  
Physical And Mechanical Properties ◽  
High Strength ◽  
Aviation Industry ◽  
Specific Strength ◽  
Aircraft Landing ◽  
Carbon Plastics ◽  
Aircraft Landing Gear

Currently, the use of composite materials is increasingly used in various areas of the national economy, including the aviation industry. The materials of this article are devoted to the study of the use of composite materials for the manufacture of aircraft landing gear in comparison with the traditionally used brand of steel. As a result of the work carried out, it was found that the slope made of carbon fiber showed a critical stress twice as high as its design made of 30xgsn2a steel. In addition, carbon plastics are superior to high-strength steel in terms of specific strength, stiffness, and tensile strength.

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