scholarly journals Durability of High Volume Glass Powder Self-Compacting Concrete

2020 ◽  
Vol 10 (22) ◽  
pp. 8058
Author(s):  
Samia Tariq ◽  
Allan N. Scott ◽  
James R. Mackechnie ◽  
Vineet Shah
Keyword(s):  
Particle Size ◽  
Glass Powder ◽  
High Volume ◽  
General Purpose ◽  
Waste Glass ◽  
Self Compacting Concrete ◽  
Cement Replacement ◽  
Chloride Diffusivity ◽  
Waste Glass Powder ◽  
Binder Ratio

The transport characteristics of waste glass powder incorporated self-compacting concrete (SCC) for a number of different durability indicators are reported in this paper. SCC mixes were cast at a water to binder ratio of 0.4 using glass powders with a mean particle size of 10, 20 and 40 µm and at cement replacement levels of 20, 30 and 40%. The oxygen permeability, electrical resistivity, porosity and chloride diffusivity were measured at different ages from 3 to 545 days of curing. The amount and particle size of the incorporated waste glass powder was found to influence the durability properties of SCC. The glass incorporated SCC mixes showed similar or better durability characteristics compared to general purpose (GP) and fly ash mixes at similar cement replacement level. A significant improvement in the transport properties of the glass SCC mixes was observed beyond 90 days.

Studies on Exciting the Activity of Waste Glass Powder by Hydrothermal Activation

2013 ◽  
Vol 871 ◽  
pp. 171-178
Author(s):  
Qing Qiu Kong ◽  
Guo Jun Ke ◽  
Dan Wang
Keyword(s):  
Compressive Strength ◽  
Hydrothermal Treatment ◽  
Glass Powder ◽  
Cement Mortar ◽  
Waste Glass ◽  
Early Age ◽  
Cement Replacement ◽  
Waste Glass Powder ◽  
Temperature And Pressure ◽  
Optimal Strength

The effect of hydrothermal activation indifferent temperature and pressure conditions on the pozzolanic activity of waste glass powder was discussed. The waste glass powder was treated at 108°C, 0.15MPa, 116°C, 0.18MPa and 121°C, 0.2MPa for 2h in an autoclave respectively after milling to 4215cm2/g. Mortar was made with untreated and hydrothermal activated waste glass power replacement of cement at 20% respectively, then tested for compressive strength at 3, 7, 14 , 28 and 90 days. Results showed that compressive strength of cement mortar had varying degrees of decline when replacing cement with untreated waste glass powder, comparing to the control one. Decline amplitude was large at early age and small at late age. Activity of waste glass powder was significantly improved after hydrothermal treatment. Compressive strength of mortar improved as temperature and pressure elevated, obtaining optimal strength at 121°C, 0.2MPa. Compressive strength of mortar with hydrothermal activated glass powder was higher than that with untreated glass powder at all age with 20% cement replacement. Compressive strength increased 5.3% ~ 13.6% at 3 d, 6.8%~9.7% at 28 d, 9.7% ~ 17.7% at 90 d. The essence of hydrothermal activation was the corrosion of water in the glass.

The Research on the Strength of Cement Mortar with Different Particle Size of Waste Glass Powder

2014 ◽  
Vol 1082 ◽  
pp. 265-269 ◽  
Author(s):  
Guo Jun Ke ◽  
Yan Chao Wang ◽  
Pin Yu Zou ◽  
Dai Nian Zeng
Keyword(s):  
Particle Size ◽  
Compressive Strength ◽  
Glass Powder ◽  
Cement Mortar ◽  
Waste Glass ◽  
Optimum Size ◽  
Best Value ◽  
Waste Glass Powder ◽  
Baseline Group ◽  
Mixed Water

To study the strength of cement mortar with different particle size of waste glass powder, grinding and screening the colorless waste glasses to 38-53,53-75,75-150,150-300,300-600μm, and as supplementary cement materials replacing the cement of cement mortar at 5,10,15,20,25,30%, respectively. Meanwhile divide the experiment into two parts:containing water reducer or not and add fly ash as comparison at the same time, measuring the flexural and compressive strength of cement mortar for 28 days. It is concluded that the flexural and compressive strength of cement mortar are decreased when mix with water reducer with maintaining the dosage of water;The optimum size and amount of waste glass powder in the cement mortar keep the same whether it is mixed water reducer or not; The flexural and compressive strength for 28days of the cement mortar reach the best value and differ with the baseline group very few whether it's mixed water reducer or not.

A Properties of Concrete using LCD Waste Glass Subjected to Sulfate Attack

2018 ◽  
Vol 773 ◽  
pp. 233-237
Author(s):  
Gyeom Boo Kim ◽  
Il Young Jang ◽  
Seong Kyum Kim ◽  
Kwang Woon Lee
Keyword(s):  
Particle Size ◽  
Compressive Strength ◽  
Magnesium Sulfate ◽  
Sodium Sulfate ◽  
Glass Powder ◽  
Sulfate Attack ◽  
Waste Glass ◽  
Replacement Ratio ◽  
Waste Glass Powder ◽  
Better Than

In this study, it investigated the micropore changes by aging of LCD waste glass powder and investigated the effects of particle size and replacement ratio on sulfate erosion. Also, the comparison of the compressive strength with that of OPC concrete was carried out to evaluate the sulfate resistance of the LCD waste glass mixed concrete. As a result, resistance to sodium sulfate is better than magnesium sulfate.

scholarly journals Effect of elevated temperatures on alkali-activated tungsten mining waste based materials

2019 ◽  
Vol 274 ◽  
pp. 03001
Author(s):  
Rafael Silva-Figueiredo ◽  
João Castro-Gomes
Keyword(s):  
Particle Size ◽  
High Temperatures ◽  
Compression Test ◽  
Glass Powder ◽  
Elevated Temperatures ◽  
Mining Waste ◽  
Waste Glass ◽  
Waste Glass Powder ◽  
Before And After ◽  
Alkali Activated

Generally, alkali-activated materials (aka geopolymers) present good behaviour at high temperatures, but previous studies of geopolymers under elevated temperatures are, in most cases, focused on metakaolin or fly ash based geopolymers, making the information on geopolymers with mining waste mud almost inexistent. In this paper, were analysed geopolymers with different combinations of mining waste mud, waste glass powder, metakaolin and expanded cork in a total of 15 different mixtures using sodium hydroxide and sodium silicate as alkaline activators. Materials particle size used is under 500 μm for mining waste mud, waste glass powder. Some mixtures also included expanded granulated cork with particle size between 2 to 4 mm. Ten samples with 40 × 40 × 40 mm dimensions were used for the compression test, one sample for the TGA test, and one cube (100 × 100 × 60 mm) with a frustoconical hole (50 mm deep) and a 100 × 100 × 25 mm cover, for the cup test. All the mixtures were cured for 24h at a temperature of 60 °C before being demoulded, and left at room temperature until they reach 7 days to be tested. On the 7th day, of each mixture, samples were placed in a static furnace before the compression test submitted to a temperature of 800 °C during 2h. Then, the compression test was performed and the values before and after exposure to high temperatures were compared. Were recorded maximum gains of 724% and maximum losses of 100% in the compressive strength. This preliminary result shows the potentials of mining waste alkali-activated materials for elevated temperatures applications.

The Study of Mortar Specimens Containing Waste Glass Powder on the Resistance to Sulfate Erosion

2015 ◽  
Vol 744-746 ◽  
pp. 1551-1555 ◽  
Author(s):  
Guo Jun Ke ◽  
Dai Nian Zeng ◽  
Pin Yu Zou
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Glass Powder ◽  
Waste Glass ◽  
Powder Size ◽  
Particle Size Range ◽  
Waste Glass Powder ◽  
Better Than

Different particle size range of waste glass powder amount to replace part of the cement made to mortar specimens, which were soaked in 5% sodium sulfate solution and water after standard curing .Then determining its mechanics properties in various ages, observing and analysis of the micro structure of the section of the specimens by SEM, exploring the ability of mortar specimens made in different size and dosage of waste glass resist to sulfate. The results indicate: Along with the rising of the size and content of glass powder. The performance of mortar specimens resisting to sulfate were on the decline. When replacement amount was 10%, all kinds of particle size of waste glass mortar specimens are better than that of ordinary Portland cement on mechanical properties, When the glass powder size is less than 53μm, all kinds of mortar specimens with high content of waste glass are better than that of ordinary Portland cement on mechanical properties.

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