scholarly journals The Process Development of Glass Cullet and Recycled Glass Aggregate for Improving Recycling Rate

2021 ◽  
Author(s):  
Hansol Lee ◽  
Hoon Lee
Keyword(s):  
Process Development ◽  
Raw Materials ◽  
Operating Conditions ◽  
Waste Glass ◽  
Recycled Aggregate ◽  
Recycling Rate ◽  
Glass Cullet ◽  
Recycled Glass ◽  
Glass Aggregate ◽  
Glass Bottles

Abstract Due to depletion of resources and the spread of environmental pollution, the sustainability of raw materials is emerging as an important issue. Glass bottles are one of the products that are easy to recycle, and many studies have been conducted to improve the recycling rate. In this study, we attempted to develop the waste glass bottles process that can be recycled into a glass cullet and recycled glass aggregate. To produce a cullet from waste glass bottles(WGBs), color quality standards must be satisfied. Therefore, we applied a multistage color sorter to the experiment. The recycled aggregate glass must adjust the particle size. Thus, we experimented with the optimum crusher selection test when applying the crushing process. And, we confirmed the appropriateness of process by aspect ratio analysis of product. In addition, we confirmed the trends in the data required to set the optimum design and operating conditions of the selected vertical shaft impact(VSI) crusher using discrete element method(DEM) simulations.

scholarly journals Effect of Waste Glass Addition as a Replacement for Fine Aggregate on Properties of Mortar

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3189 ◽  
Author(s):  
Marcin Małek ◽  
Waldemar Łasica ◽  
Mateusz Jackowski ◽  
Marta Kadela
Keyword(s):  
Mechanical Properties ◽  
Waste Glass ◽  
Fine Aggregate ◽  
Low Carbon ◽  
Glass Cullet ◽  
Split Tensile Strength ◽  
Glass Waste ◽  
Aggregate Content ◽  
Glass Aggregate ◽  
Glass Sand

A responsible approach towards sustainable development requires the use of environmentally friendly, low-carbon, and energy-intensive materials. One positive way is to use glass waste as a replacement for fine natural aggregate. For this purpose, the effects of adding glass cullet to the mechanical properties of mortar were carried out. The glass aggregate made from recycled post-consumer waste glass (food, medicine, and cosmetics packaging, including mostly bottles), were used. This experimental work included four different contents of fine glass cullet (5, 10, 15, and 20 wt.% of fine aggregate). The compressive, flexural, and split tensile strengths were evaluated. Moreover, the modulus of elasticity and Poisson coefficient were determined. The addition of glass sand aggregate increases the mechanical properties of mortar. When comparing the strength, the obtained improvement in split tensile strength was the least affected. The obtained effect for the increased analysed properties of the glass sand aggregate content has been rarely reported. Moreover, it was determined that by increasing the recycled glass sand aggregate content, the density of mortar decreased. In addition, the relationships between the properties for mortar containing glass sand aggregate were observed.

scholarly journals Flexural Behaviour of Recycled Waste Glass Fine Aggregate Concrete Beams

2019 ◽  
Vol 8 (6S4) ◽  
pp. 89-95
Keyword(s):  
Maximum Load ◽  
Waste Glass ◽  
Fine Aggregate ◽  
Flexural Behaviour ◽  
Conventional Concrete ◽  
Aggregate Concrete ◽  
Recycled Glass ◽  
Load Carrying ◽  
Glass Aggregate ◽  
Recycled Waste

Glass is recycled indefinitely with none loss in quality. This paper presents various grade of concrete like M 20, M 40 and M 60 is the appropriately of recycled glass aggregate as an alternative for making concrete. M 20, M 40 and M 60 control concrete made with conventional fine aggregate and concrete made with glass aggregate. The properties of recycled waste glass aggregate is compared with conventional fine aggregate. For each grade M20, M 40 and M 60, six numbers of size 100 × 100 × 100 millimeter cubes are cast to find out the mechanical strength for control concrete and recycled waste glass fine aggregate concrete. To study flexural behaviour, 125 × 200 × 1100 millimeter size of the beams are cast. All beams are designed as under reinforced sections. For above grade mix, three beams are made with conventional concrete and other three beams are made with recycled waste glass fine aggregate concrete. All the beams are tested for flexure. The maximum load carrying capacity, deflection, crack patterns are obtained. The experimental results are compared with finite element modelling using ANSYS software.

scholarly journals Study on producing light weight concrete with foam glass granules

2019 ◽  
Vol 13 (2) ◽  
pp. 74-81
Author(s):  
Hoang Vinh Long
Keyword(s):  
Urban Areas ◽  
Raw Materials ◽  
Foam Glass ◽  
Developed Countries ◽  
Waste Glass ◽  
Solid Wastes ◽  
Recycling Rate ◽  
Light Weight ◽  
Light Weight Concrete ◽  
Glass Foam

In the world, waste glass is widely recycled, especially in developed countries with a recycling rate of about 30-90%. Currently, in Vietnam glass emissions in urban areas account for 1.5-2% of solid wastes; however, few studies mention this waste. Therefore, light weight concrete (LWC) using foam glass granulates (FGG) is the object of this paper. In the study, the raw materials are FGG, But Son PC40 cement, Pha Lai fly ash and Sikament superplasticizer named R4. The experimental results show that with FGG content of 50% (by volume), the LWC’s bulk specific gravity is 1302 kg/m3 and compressive strength at 28 days is 89 kG/cm2. Keywords: waste glass; foam glass granulate; light weight concrete.

scholarly journals USING SECONDARY RAW MATERIALS IN LIGHTWEIGHT OPEN-STRUCTURE CONCRETE WITH GOOD UTILITY PROPERTIES

2019 ◽  
Vol 22 ◽  
pp. 94-98
Author(s):  
Martin Sedlmajer ◽  
Jiří Zach ◽  
Jan Bubeník
Keyword(s):  
Mechanical Properties ◽  
Lightweight Concrete ◽  
Raw Materials ◽  
Foam Glass ◽  
Acoustic Properties ◽  
Recycled Pet ◽  
Open Structure ◽  
Recycled Glass ◽  
Thermal Insulating ◽  
Glass Aggregate

The paper presents the results of research in lightweight concrete with open structure made using a lightweight porous foam-glass aggregate produced from recycled glass powder. The goal was to develop lightweight concrete. In order to achieve the best possible properties while reducing binder content, the concrete was reinforced with by-product fibres, which helped reduce the weight of the concrete while delivering satisfactory mechanical properties. In the paper are proposed lightweight concrete with open structure made using foam-glass aggregate. Mechanical, thermal-insulating and acoustic properties were determined on lightweight concrete. Designed concrete is only made of crushed lightweight foam-glass aggregate with a combination of Portland cement with the option of adding recycled PET fibres. The new concretes possess a very good ratio of thermal insulation to mechanical properties as well as good sound absorption.

Bitumen-Mineral Compositions for Road Construction with the Use of Household Waste Glass (Cullet)

2019 ◽  
Vol 770 (5) ◽  
pp. 51-56
Author(s):  
Yu.G. BORISENKO ◽  
◽  
R.M. AZAN ◽  
D.P. SHVACHEV ◽  
D.A. VOROBIEV ◽  
...  
Keyword(s):  
Road Construction ◽  
Waste Glass ◽  
Household Waste ◽  
Glass Cullet ◽  
Mineral Compositions

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.

Monitoring of Chemical Resistance of New Grouting Materials

2021 ◽  
Vol 898 ◽  
pp. 27-33
Author(s):  
Petr Figala ◽  
Rostislav Drochytka ◽  
Vit Černý ◽  
Radek Hermann ◽  
Jiří Kolísko
Keyword(s):  
Fly Ash ◽  
Chemical Resistance ◽  
Raw Materials ◽  
Waste Glass ◽  
Sulphate Solution ◽  
Sulphate Attack ◽  
Glass Waste ◽  
Foundry Sand ◽  
Waste Foundry Sand ◽  
Grouting Materials

This paper deals with the study of chemical resistance of new cement-based grout for invert grouting. The aim of this work is to verify new mixtures with specific admixtures. The study monitors resistance to external sulphate attack. Specimens were placed into sulphate solution 29.8 g∙l-1 (44 g∙l-1 Na2SO4) according to DIN19753 standard. Based on the results gained, new mixtures will be designed and optimized by addition of suitable secondary raw materials (fly ash, waste foundry sand, waste glass, waste filers).

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).

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