scholarly journals Influence of soda-lime waste glass microparticles on workability and thermal properties of portland cement compounds

2019 ◽  
Vol 69 (335) ◽  
pp. 192 ◽  
Author(s):  
C. B. C. S. Alvarenga ◽  
O. M. Heiderick ◽  
T. A. Couto ◽  
P. R. Cetlin ◽  
R. B. C. Sales ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Portland Cement ◽  
Control Sample ◽  
Soda Lime ◽  
Waste Glass ◽  
Partial Substitution ◽  
Soda Lime Glass ◽  
Setting Times ◽  
Thermal Emissivity ◽  
Cement Compounds

Numerous studies have investigated the use of waste glass as a partial substitution in Portland cement. Nonetheless, it seems there is no consensus about the influence of particle size and color on the behavior of the compounds. This work investigates the influence of soda-lime glass microparticles on the properties of cement and mortar in both fresh and hardened states. The effects of partial substitution (10 and 20%) of the cement by colorless and amber glass particles with dimensions of approximately 9.5 mm were investigated. The results revealed that the substitutions did not significantly affect the setting times, nor the mechanical properties of mortar at longer curing times. The influence of glass content and chemical composition on workability and hydration heat was also observed. The waste glass samples showed lower thermal diffusivity than the control sample. Thermal emissivity was not influenced by the presence of glass microparticles.

scholarly journals Thermophysical Properties of Cement Mortar Containing Waste Glass Powder

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 488
Author(s):  
Oumaima Nasry ◽  
Abderrahim Samaouali ◽  
Sara Belarouf ◽  
Abdelkrim Moufakkir ◽  
Hanane Sghiouri El Idrissi ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Specific Heat ◽  
Thermophysical Properties ◽  
Glass Powder ◽  
Cement Mortar ◽  
Soda Lime ◽  
Waste Glass ◽  
Soda Lime Glass ◽  
Volumetric Specific Heat ◽  
Waste Glass Powder

This study aims to provide a thermophysical characterization of a new economical and green mortar. This material is characterized by partially replacing the cement with recycled soda lime glass. The cement was partially substituted (10, 20, 30, 40, 50 and 60% in weight) by glass powder with a water/cement ratio of 0.4. The glass powder and four of the seven samples were analyzed using a scanning electron microscope (SEM). The thermophysical properties, such as thermal conductivity and volumetric specific heat, were experimentally measured in both dry and wet (water saturated) states. These properties were determined as a function of the glass powder percentage by using a CT-Meter at different temperatures (20 °C, 30 °C, 40 °C and 50 °C) in a temperature-controlled box. The results show that the thermophysical parameters decreased linearly when 60% glass powder was added to cement mortar: 37% for thermal conductivity, 18% for volumetric specific heat and 22% for thermal diffusivity. The density of the mortar also decreased by about 11% in dry state and 5% in wet state. The use of waste glass powder as a cement replacement affects the thermophysical properties of cement mortar due to its porosity as compared with the control mortar. The results indicate that thermal conductivity and volumetric specific heat increases with temperature increase and/or the substitution rate decrease. Therefore, the addition of waste glass powder can significantly affect the thermophysical properties of ordinary cement mortar.

Influence of the Type of Dispersant on the Properties of Casting Slips of Porcelains with Soda-Lime Glass

2006 ◽  
Vol 530-531 ◽  
pp. 449-455
Author(s):  
S.R. Bragança ◽  
R. Camaratta ◽  
A.C. Taborda ◽  
C.P. Bergmann
Keyword(s):  
Slip Casting ◽  
Soda Lime ◽  
Ceramic Materials ◽  
Partial Substitution ◽  
Attractive Alternative ◽  
Soda Lime Glass ◽  
Glass Waste ◽  
Different Types ◽  
Casting Slip ◽  
Extruded Products

The use of glass residues for the reduction of firing temperature of ceramic materials products has become an attractive alternative. For pressed or extruded products, such as tiles and bricks, the use of glass is sufficiently simple, since only milling and mixing to the industrial mass batch in partial substitution of conventional fluxes are necessary. However, in slip casting products, such as china and porcelains, the glass presence destabilizes the casting slip. This is the motivation of this work. Different types of dispersants and their influence on the properties of slips containing glass waste were evaluated. The experimental results showed that the use of conventional dispersant (sodium silicate) is not adequate. The stabilization of slips was possible only with organic dispersants. Therefore, the factors that determine the success or failure of dispersants were also analyzed.

High Efficiency Ecological Concrete

2014 ◽  
Vol 604 ◽  
pp. 157-160 ◽  
Author(s):  
Patricija Kara ◽  
Aleksandrs Korjakins
Keyword(s):  
Grain Size ◽  
Compressive Strength ◽  
Portland Cement ◽  
Alkaline Earth ◽  
High Efficiency ◽  
Cement Content ◽  
Soda Lime ◽  
Waste Glass ◽  
Concrete Mixture ◽  
Concrete Properties

Waste glass is cementitious in nature when it is finely ground, and especially when it is ground in a wet environment it can be finer than Portland cement. The obtained borosilicate lamp waste glass slurry with a grain size of 0.713 – 8.088 μm has shown better fineness and stability to segregation in comparison to soda-lime and soda-alkaline earth-silicate waste glasses. Elaborated high efficiency concrete with borosilicate lamp waste glass showed 120 MPa compressive strength at 28 days and it can be considered as ecological due to reduced cement content for 20% in concrete mixture without changing concrete properties in a negative way, reduced CO2 and waste glass deposits.

Experimental Study on Compatibility between Alkali-Free Liquid Concrete Accelerators and Cement

2013 ◽  
Vol 438-439 ◽  
pp. 102-107 ◽  
Author(s):  
Wen Kang Guo ◽  
Li Wang ◽  
Shu Yin Wang ◽  
Dao Yin Lan ◽  
Sheng Ping Li
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Compressive Strength ◽  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Strength Ratio ◽  
Setting Times ◽  
Gypsum Content ◽  
Durability Of Concrete

This paper selected two kinds of alkali-free liquid concrete accelerators and tested their compatibility with ordinary Portland cement, Portland cement and moderate heat Portland cement by measuring the setting times, compressive strength and compressive strength ratio of samples. The results showed that the compatibility is good between alkali-free accelerators and two types of cement: ordinary Portland cement and moderate heat Portland cement. However, the compatibility of two accelerators and Portland cement are quite different, the compatibility of AFA-2 accelerator is excellent, but AFA-1 accelerator is very poor. The setting times of alkali-free accelerators is mainly influenced by the mixing materials content, gypsum content, C3A and C3S content. In order to ensure the mechanical properties and durability of concrete, the setting times of new concrete accelerator is not the shorter the better, the appropriate initial and final setting times are 1min30s~5min and 4min~ 12min respectively.

Experimental Investigation the Effect of Cleaning on the Optical and Mechanical Properties of PV Module Glasses

2020 ◽  
Vol 990 ◽  
pp. 291-295
Author(s):  
Nardia Zubir ◽  
Md. Hasanuzzaman ◽  
Nasrudin Abd Rahim
Keyword(s):  
Mechanical Properties ◽  
Experimental Investigation ◽  
Borosilicate Glass ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Glass Cover ◽  
Pv Module ◽  
Optical And Mechanical Properties ◽  
Glass Cleaning

Poor transmission of sunlight through the top glass cover is one of the major hindrances in realizing better performance from a PV module. Adoption of appropriate cleaning technique might enhance glass transmissivity to a good extent. In the present study, the effect of manual cleaning with nylon sponge, microfiber cloth and nylon brush on optical and mechanical properties of PV glass have been investigated for several samples of borosilicate and soda lime glasses. Examination of transmittance of the samples using UV-VIS NIR scanning spectrophotometer confirmed enhanced transmissivity. Borosilicate glass exhibited better performance in terms of transmissivity as compared to soda lime glass. Cleaning with nylon sponge shows the highest transmittance of 91.98% for borosilicate glass at 630 nm wavelength and that of 91.094% with soda lime at 525 nm wavelength.

scholarly journals Solidification of Hazardous Heavy Metal Ions with Soda-Lime Glass. Characterization of Iron and Zinc in the Waste Glass.

2000 ◽  
Vol 108 (1255) ◽  
pp. 245-248 ◽  
Author(s):  
Tetsuaki NISHIDA ◽  
Motoshi SETO ◽  
Shiro KUBUKI ◽  
Osamu MIYAJI ◽  
Toshifumi ARIGA ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Soda Lime ◽  
Waste Glass ◽  
Soda Lime Glass ◽  
Iron And Zinc

scholarly journals Rheology, Mechanical Properties and Porosity of Ternary Alkali-Activated Binders Based on Mining Mud Waste with Waste Glass and Metakaolin

CivilEng ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 236-253
Author(s):  
Abdelhakim Benhamouda ◽  
João Castro-Gomes ◽  
Luiz Pereira-de-Oliveira
Keyword(s):  
Mechanical Properties ◽  
Portland Cement ◽  
Yield Stress ◽  
Relative Yield ◽  
Rheological Behaviour ◽  
Waste Glass ◽  
Plastic Viscosity ◽  
Rheological Parameters ◽  
Alkali Activated Binders ◽  
Alkali Activated

Alkali-activated materials have the potential to replace Portland cement in certain applications. To better understand these binders’ properties, it is relevant to study their rheological behaviour at early ages, like in the case of Portland cement paste. There are already many studies on the rheological behaviour of these materials in the available literature, using fly ash, metakaolin, and ground granulated blast furnace slag as precursors. However, this study discusses the rheological behaviour, mechanical properties, and porosity of ternary alkali-activated binders based on mining mud waste, waste glass, and metakaolin. The precursor consisted of a volume mix of 70% of tungsten mining waste mud, 15% glass waste, and 15% of metakaolin. The activator was a combination of sodium hydroxide and sodium silicate solution. Five activator/precursor (A/P) ratios (0.37, 0.38, 0.39, 0.40, and 0.4) were studied. The result showed that the activator/precursor ratio affects the rheology of paste and their rheological behaviour fit the Bingham model. The relative yield stress (g) and plastic viscosity (h) increased inversely with the A/P ratio, while the workability increased proportionally. Furthermore, some empirical models are proposed to describe the characteristic of yield stress: plastic viscosity and spread diameter versus the A/P ratio and time with a correlation between the rheological parameters and the spread diameter. The increase in A/P ratio has also followed a decrease in compressive strength in all tested samples for all the ages. As expected, an increase of the porosity accompanied the increase of the A/P ratio.

Effects of Waste Soda-Lime Glass Sand and Glass Fiber on Physical and Mechanical Properties of None-Autoclaved Aerated Concrete

2021 ◽  
Vol 1023 ◽  
pp. 141-146
Author(s):  
Inzhu Mukangali ◽  
Chang Seon Shon ◽  
Kirill Kryzhanovskiy ◽  
Di Chuan Zhang ◽  
Jong Ryeol Kim
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Physical And Mechanical Properties ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Test Results ◽  
Autoclaved Aerated Concrete ◽  
Glass Sand ◽  
Aerated Concrete ◽  
Compressive And Flexural Strengths

This paper investigates the combined effect of waste soda-lime glass sand and glass fiber on the physical and mechanical properties of none-autoclaved aerated concrete (NAAC). The use of both soda-lime glass sand and glass fiber can provide silica-rich materials in the aerated concrete and can enable the elimination of an autoclaved curing by enhancing the physical and mechanical properties in aerated concrete. In this study, a total of six mixture proportions were designed to evaluate these properties in NAAC. The mixture parameters included the partial substitutions of normal sand with soda-lime glass sand (0%, 15%, and 30%) and glass fiber (1%, 2%, and 3%). A series of tests were conducted to determine density, absorption, porosity, and both compressive and flexural strengths of the NAAC. Test results present that the increase of glass sand content leads to the increasing of both compressive and flexural strengths. Moreover, the combination of the use of glass sand with glass fiber also increases the strength up to 2 times (the mixture of 30% glass sand and 3% glass fiber). Furthermore, test results indicate the relatively good relationship between the density, porosity, and of NAAC with good accuracy.

Instrumentation of a conventional hardness tester for load-displacement measurement during indentation

1990 ◽  
Vol 5 (4) ◽  
pp. 847-851 ◽  
Author(s):  
G. M. Pharr ◽  
R. F. Cook
Keyword(s):  
Mechanical Properties ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Standard Equipment ◽  
New Device ◽  
Hardness Tester ◽  
Surface Contact Area ◽  
Plastic Responses ◽  
Elastic Unloading ◽  
Microhardness Tester

A conventional microhardness tester has been instrumented with a piezoelectric load cell and capacitance displacement gages to measure load and displacement during indentation. As in other recently-developed load and displacing sensing indentation instruments, the new device can be used to measure a variety of mechanical properties, but has the advantage of being relatively inexpensive to assemble since many of its components are standard equipment. Tests were performed on soda-lime glass and an aluminum alloy, demonstrating the diversity of material elastic-plastic responses under indentation, particularly in the unloading cycle. The data suggest that models of elastic unloading based on invariant indenter-surface contact area may not be general, and may lead to underestimates of hardness and modulus.

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