Possibilities of Binding Recycled Glass in Production of Advanced Building Materials

2016 ◽  
Vol 865 ◽  
pp. 255-260
Author(s):  
Martina Reif ◽  
Jiri Zach ◽  
Vítězslav Novák
Keyword(s):  
Thermal Insulation ◽  
Building Materials ◽  
Lightweight Concrete ◽  
Raw Materials ◽  
Lightweight Aggregate ◽  
Waste Glass ◽  
Raw Material ◽  
Acoustic Properties ◽  
Transportation Engineering ◽  
Advanced Composite Materials

The use of secondary raw material resources for construction purposes currently has a great potential. Secondary raw materials obtained by recycling waste glass find use (among others) in the production of thermal and acoustic insulation, production of lightweight concrete mixes and also in transportation engineering e.g. in road reconstruction.The paper deals with the possibilities of binding lightweight aggregate based on waste glass powder and with the production of advanced composite materials with good thermal insulation and acoustic properties. This means cement, epoxy resin and bituminous matrix with the goal to develop advanced building materials that could find further use as, for example, thermal insulation materials.

scholarly journals LIGHTWEIGHT AGGREGATE AND ASHES SLAG BASED CONCRETE WITH HIGH RESIDUAL FUEL CONTENT

2020 ◽  
Vol 17 (34) ◽  
pp. 678-688
Author(s):  
Maratbek T ZHUGINISSOV ◽  
Zhanar O ZHUMADILOVA
Keyword(s):  
Compressive Strength ◽  
Bulk Density ◽  
Lightweight Concrete ◽  
Raw Materials ◽  
Lightweight Aggregate ◽  
Mineralogical Composition ◽  
Raw Material ◽  
Unburned Fuel ◽  
Surrounding Areas ◽  
Slag Waste

Ashes slag materials in the chemical and mineralogical composition are largely identical to natural mineral raw materials. They are a source of environmental pollution, pose a threat to public health, and a threat to the flora and fauna of the surrounding areas. Ashes slag waste contains a large amount of unburned fuel. In some ashes, the content of unburned fuel can reach 20-40%. In this case, it is advisable to use it as a raw material for the production of artificial porous aggregates. The paper presents the results of studies on the development of lightweight aggregate technology based on ashes slag with a high residual fuel content. To develop the technology of lightweight aggregate, ashes slag was used by Nova Zinc LLP (Karaganda region, Kazakhstan), in which the content of unburned coal is up to 75%. Based on ashes slag, lightweight aggregates were obtained using burning and non-burning technologies. By roasting (burning) technology, aggregates were obtained by burning at a temperature of 1000 and 1100 °C. The aggregates obtained have a bulk density of 395-687 kg/m3 and a compressive strength in the cylinder of 0.5-2.4 MPa. By non-burning technology Portland cement M400 was used as an astringent. After hardening, the aggregates have a bulk density of 400-600 kg/m3 and a 679 compressive strength of 0.65-1.5 MPa in the cylinder. Samples of light concrete with a density of 1200 and 1700 kg/m3, a compressive strength of 80 (B5) and 120 kg/cm2 (B7.5), and thermal conductivity coefficients of 0.43 and 0.67 W/mоС were obtained on the basis of the non-fired light aggregate, respectively. Lightweight aggregate and lightweight concrete in their functional properties meet the requirements of regulatory documents.

Concrete with Fluidized Bed Combustion Fly Ash Based Light Weight Aggregate

2016 ◽  
Vol 249 ◽  
pp. 8-13
Author(s):  
Rudolf Hela ◽  
Martin Ťažký ◽  
Václav Vachuška ◽  
Tomáš Ťažký
Keyword(s):  
Fly Ash ◽  
Fluidized Bed ◽  
Building Materials ◽  
Lightweight Concrete ◽  
Raw Materials ◽  
Construction Materials ◽  
Lightweight Aggregate ◽  
Fluidized Bed Combustion ◽  
Freezing And Thawing ◽  
Long Time

Conventional high temperature fly ash has been used for manufacturing of construction materials, concrete in particular, for quite a long time. Fluidized bed combustion fly ash, however, has little use in this area, mainly for its chemical composition and morphology. Current efforts are directed towards the development of new technological processes and building materials that would allow the use of this industrial waste and its qualities. One possible way of fluidized bed combustion fly ash’s utilizing in construction industry is the production of cold balled lightweight aggregate. Production of this material is economically advantageous and enables processing of large volumes of raw materials. This paper describes possibilities of using this aggregate for production of lightweight concrete of lower compressive strength classes and consequent testing of durability and resistance to various types of aggressive environment and cyclical freezing and thawing. Physico-mechanical properties and microscopic defects were also studied

Physico-Mechanical Properties of Lightweight Concrete with Fluidized Bed Combustion Fly Ash Based Light Weight Aggregate

2017 ◽  
Vol 908 ◽  
pp. 106-110 ◽  
Author(s):  
Martin Ťažký ◽  
Lenka Bodnárová ◽  
Rudolf Hela
Keyword(s):  
Fly Ash ◽  
Fluidized Bed ◽  
Building Materials ◽  
Lightweight Concrete ◽  
Raw Materials ◽  
Lightweight Aggregate ◽  
Fluidized Bed Combustion ◽  
Lightweight Construction ◽  
Technical Parameters ◽  
Light Weight Aggregate

Increasingly we see today among the conventional high temperature fly ash also with the production of fly ash from fluidized bed combustion. These fluidized bed combustions fly ashes, however, have little used this area, mainly for their chemical composition and morphology. Current efforts are directed towards the development of new technological processes and building materials that would allow the use of this industrial waste and its qualities. One possible way of fluidized bed combustion fly ash’s utilizing in construction industries the production of cold balled lightweight aggregate. Production of this material is economically advantageous and enables processing of large volumes of raw materials. This paper describes possibilities of using this aggregate for production of lightweight construction concrete and consequent testing of durability and resistance to various types of aggressive environment. For these lightweight structural concretes, will be verified in their thermal-technical parameters.

scholarly journals Crushed Bricks: Demolition Waste as a Sustainable Raw Material for Geopolymers

2021 ◽  
Vol 13 (14) ◽  
pp. 7572
Author(s):  
Gigliola D’Angelo ◽  
Marina Fumo ◽  
Mercedes del Rio Merino ◽  
Ilaria Capasso ◽  
Assunta Campanile ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Building Materials ◽  
Mechanical Performance ◽  
Raw Materials ◽  
Construction Material ◽  
Raw Material ◽  
The European Union ◽  
Total Energy Consumption ◽  
Demolition Waste ◽  
Crushed Brick

Demolition activity plays an important role in the total energy consumption of the construction industry in the European Union. The indiscriminate use of non-renewable raw materials, energy consumption, and unsustainable design has led to a redefinition of the criteria to ensure environmental protection. This article introduces an experimental plan that determines the viability of a new type of construction material, obtained from crushed brick waste, to be introduced into the construction market. The potential of crushed brick waste as a raw material in the production of building precast products, obtained by curing a geopolymeric blend at 60 °C for 3 days, has been exploited. Geopolymers represent an important alternative in reducing emissions and energy consumption, whilst, at the same time, achieving a considerable mechanical performance. The results obtained from this study show that the geopolymers produced from crushed brick were characterized by good properties in terms of open porosity, water absorption, mechanical strength, and surface resistance values when compared to building materials produced using traditional technologies.

scholarly journals Influence of Lightweight Aggregate Concrete Materials on Building Energy Performance

Buildings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 94
Author(s):  
Tara L. Cavalline ◽  
Jorge Gallegos ◽  
Reid W. Castrodale ◽  
Charles Freeman ◽  
Jerry Liner ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Building Materials ◽  
Energy Savings ◽  
Lightweight Concrete ◽  
Lightweight Aggregate ◽  
Building Energy ◽  
Energy Performance ◽  
Energy Simulation ◽  
Building Energy Simulation ◽  
Building Energy Performance

Due to their porous nature, lightweight aggregates have been shown to exhibit thermal properties that are advantageous when used in building materials such as lightweight concrete, grout, mortar, and concrete masonry units. Limited data exist on the thermal properties of materials that incorporate lightweight aggregate where the pore system has not been altered, and very few studies have been performed to quantify the building energy performance of structures constructed using lightweight building materials in commonly utilized structural and building envelope components. In this study, several lightweight concrete and masonry building materials were tested to determine the thermal properties of the bulk materials, providing more accurate inputs to building energy simulation than have previously been used. These properties were used in EnergyPlus building energy simulation models for several types of commercial structures for which materials containing lightweight aggregates are an alternative commonly considered for economic and aesthetic reasons. In a simple model, use of sand lightweight concrete resulted in prediction of 15–17% heating energy savings and 10% cooling energy savings, while use of all lightweight concrete resulted in prediction of approximately 35–40% heating energy savings and 30% cooling energy savings. In more complex EnergyPlus reference models, results indicated superior thermal performance of lightweight aggregate building materials in 48 of 50 building energy simulations. Predicted energy savings for the five models ranged from 0.2% to 6.4%.

Microstructure, Mechanical Properties, and Electrical Resistivities of Mica Glass-Ceramics with Flake Phlogopite and Waste Glass

2014 ◽  
Vol 602-603 ◽  
pp. 640-643
Author(s):  
Yu Fei Chen ◽  
Yan Gai Liu ◽  
Xiao Wen Wu ◽  
Zhao Hui Huang ◽  
Ming Hao Fang
Keyword(s):  
High Speed ◽  
Sintering Temperature ◽  
Raw Materials ◽  
Glass Ceramics ◽  
Waste Glass ◽  
Raw Material ◽  
Bending Test ◽  
Electric Locomotive ◽  
Molding Process ◽  
Electrical Resistivities

Mica glass-ceramics can be applied in all kinds of electrical equipment, locomotive internal circuits in high-speed rail, ordinary electric locomotive and subway locomotive. In this study, mica glass-ceramics were prepared by sintering process using flake mica and waste glass as the main raw material with low cost. Different mica glass-ceramic samples were fabricated by changing the formula of raw materials, molding process and sintering temperature. X-ray diffraction, scanning electron microscopy, three-point bending test, and balanced-bridge technique were applied to investigate the phase, microstructure, mechanical and electrical resistivities of the samples, respectively. The results show that the optimum sintering temperature is 900 to 1000 °C holding for two hours, the desirable ratio is 70 wt% of mica powder while 30 wt% of glass powder. In that condition the sample could be less porosity, high flexural strength (63.3 MPa) and eligible electrical resistivity (0.4×1013 Ω·cm).

Investigation of Thermal Insulation Materials Based on Easy Renewable Row Materials from Agriculture

2011 ◽  
Vol 335-336 ◽  
pp. 1412-1417 ◽  
Author(s):  
Jiri Zach ◽  
Jitka Peterková ◽  
Vít Petranek ◽  
Jana Kosíková ◽  
Azra Korjenic
Keyword(s):  
Thermal Insulation ◽  
Building Materials ◽  
Raw Materials ◽  
Building Construction ◽  
Materials Development ◽  
Insulation Materials ◽  
Thermal Insulating ◽  
Plastic Materials ◽  
Energy Consuming ◽  
Rock Wool

Production of building materials is mostly energy consuming. In the sphere of insulation materials we mostly see rock wool based materials or foam-plastic materials whose production process is demanding from material aspect and raw materials aspect as well. At present the demand for thermal insulation materials has been growing globally. The thermal insulation materials form integral part of all constructions in civil engineering. The materials mainly fulfill the thermal insulating functions and also the sound-insulating one. The majority of thermal insulation materials are able to fulfill both of the functions simultaneously. The paper describes questions of thermal insulation materials development with good sound properties based on natural fibres that represent a quickly renewable source of raw materials coming from agriculture. The main advantage of the materials are mainly the local availability and simple renewability of the raw materials. In addition an easy recycling of the materials after their service life end in the building construction and last but not least also the connection of human friendly properties of organic materials with advanced product manufacture qualities of modern insulation materials.

scholarly journals High strength glass-ceramics sintered with coal gangue аs а raw material

2019 ◽  
Vol 51 (3) ◽  
pp. 285-294
Author(s):  
Dang Wei ◽  
H.-Y. He
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Glass Ceramics ◽  
High Strength ◽  
Coal Gangue ◽  
Raw Material ◽  
Sintering Process ◽  
Forming Process ◽  
Sintered Glass ◽  
Utilization Ratio

High strength lightweight glass-ceramics were fabricated with coal gangue and clay as main raw materials. The utilization ratio of coal gangue, the ratio of the coal gangue with clay, mineralization agents, forming process and sintering process on the properties of the fabricated glass-ceramics were optimized. The utilization ratio of coal gangue reached 75, and the ratio of coal gangue to clay was 3/1, as an optimal property was observed. The optimal sintering temperature was found to be 1370?C. At this optimal temperature, the sintered glass-ceramics showed the main phase of mullite and spindle and so showed high strength, low density, and low water absorbance. The appropriate amounts of codoping of the TiO2, ZnO, and MnO2/dolomite as mineralization agents obviously enhanced the properties of the glass-ceramics. Process optimizations further determined reasonable and optimal process parameters. The high strength lightweight glass-ceramics fabricated in this work may be very suitable for various applications including building materials, cooking ceramics, and proppant materials, et al.

Ceramic Composition Material with Mullite Crystals Obtained from the Clayy Raw Material of Yakutia

2020 ◽  
Vol 992 ◽  
pp. 253-258
Author(s):  
M.P. Lebedev ◽  
V.N. Tagrov ◽  
E.S. Lukin
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Practical Interest ◽  
Physical And Mechanical Properties ◽  
Ceramic Materials ◽  
Strength Properties ◽  
Raw Material ◽  
Composition Material ◽  
Material Base ◽  
Wide Range

The article deals with the manufacture of modern structural ceramic materials from clay and loam deposits of the Republic of Sakha (Yakutia). The importance and relevance of the development of the production of building materials from local raw materials is emphasized, since this will certainly affect the effectiveness of the construction complex as a whole. The successful development of the construction complex is capable of not only stimulating growth in all sectors of the economy, but also contributes to solving the most pressing social problems. Today, Yakutia has huge reserves of mineral raw materials for the production of a wide range of building materials and products. Of practical interest are wall materials made from clay soils. Given the features of the region’s raw material base, this work focuses on additional processing of traditional material. Controlling the complex physicochemical and structural-mechanical transformations that occur during heat treatment, a methodology has been developed for creating a composite material that will allow competitive innovative materials with enhanced strength properties to be produced with a reinforcing element with a glassy phase matrix of mullite crystals. The fabricated samples have a wide range of physical and mechanical properties and allow using it as a high-quality structural building ceramics, as well as industrial floor technical tile.

scholarly journals Changing the method of compaction of autoclaved building materials modified by diabase and barite aggregate.

2018 ◽  
Vol 174 ◽  
pp. 02014
Author(s):  
Katarzyna Komisarczyk ◽  
Anna Stępień ◽  
Ryszard Dachowski
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Building Materials ◽  
Raw Materials ◽  
Reference Sample ◽  
Raw Material ◽  
Natural Origin ◽  
Applied Technology ◽  
Silicon Ions ◽  
Scanning Electron

The traditional way of producing sand-lime products is connected with the use of three basic raw materials i.e. quartz sand of natural origin, water and quicklime ground lime. During hydrothermal treatment in an autoclave, chemical reactions take place between the calcium and silicon ions. As a result of these reactions, the products are created that provide advantageous appropriable traits. In order to improve the durability attributes of the discussed products, diabase and barite aggregate was introduced into the raw material mass. In addition, the change in the densification method of the silicate mixture was applied. Layering was replaced instead of traditional pressing. The article describes sand-lime products modified with diabase and barite aggregate in an amount up to 15% by weight. Two methods of thickening the sand-lime mixture were used: pressing and layering. The change of the applied technology significantly influences, among others for water absorption. The best result was obtained using 5% and 10% modifiers. Modification with 5% content of diabase aggregate and 5% content of barite aggregate increases the strength by over 60% in relation to the reference sample. The obtained properties are reflected in the image of the microstructure examined by means of the scanning electron microscope. In the sand- lime products, both traditional and modified with diabase and barite aggregates, the C-S-H phase and tobermorite is present. These phases are characteristic for autoclaved products, although depending on the method of thickening occur in varying degrees and intensities.

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