Wastewater Renovation with Mine-Derived Fill Materials

1999 ◽  
pp. 163-178
Author(s):  
Autumn-Lynn Harrison ◽  
Raymond B. Reneau ◽  
Charles Hagedorn
Keyword(s):  
Fill Materials

Man-made(fill) materials

2018 ◽  
pp. 317-328
Author(s):  
W.S. Chesnut
Keyword(s):  
Fill Materials

scholarly journals A Preliminary Evaluation of Using Fill Materials to Stabilize Used Nuclear Fuel During Storage and Transportation

2012 ◽  
Author(s):  
Steven J. Maheras ◽  
Ralph Best ◽  
Steven B. Ross ◽  
Erik A. Lahti ◽  
David J. Richmond
Keyword(s):  
Nuclear Fuel ◽  
Preliminary Evaluation ◽  
Used Nuclear Fuel ◽  
Fill Materials

scholarly journals Comparison of Internal Adaptation of Bulk-fill and Increment-fill Resin Composite Materials

2019 ◽  
Vol 44 (1) ◽  
pp. E32-E44 ◽  
Author(s):  
FS Alqudaihi ◽  
NB Cook ◽  
KE Diefenderfer ◽  
MC Bottino ◽  
JA Platt
Keyword(s):  
Composite Materials ◽  
Resin Composite ◽  
Aging Effect ◽  
Measured Data ◽  
Cavity Surface ◽  
Restorative Material ◽  
Tooth Structure ◽  
Gap Measurement ◽  
Internal Adaptation ◽  
Fill Materials

SUMMARY Objectives: To evaluate 1) the internal adaptation of a light-activated incremental-fill and bulk-fill resin-based composite (RBC) materials by measuring the gap between the restorative material and the tooth structure and 2) the aging effect on internal adaptation. Methods and Materials: Seventy teeth with class I cavity preparations were randomly distributed into five groups; four groups were restored with bulk-fill RBCs: Tetric EvoCeram Bulk Fill (TEC), SonicFill (SF), QuiXX Posterior Restorative (QX), and X-tra fil (XF); the fifth group was restored with incremental-fill Filtek Supreme Ultra Universal Restorative (FSU). One-half of the specimens of each group were thermocycled. Each tooth was sectioned, digital images were recorded, and the dimensions of any existing gaps were measured. Data were analyzed using analysis of variance (α=0.05). Results: FSU had the smallest gap measurement values compared with the bulk-fill materials except QX and TEC (p≤0.008). FSU had the smallest sum of all gap category values compared with the bulk-fill materials, except QX (p≤0.021). The highest gap incidence and size values were found at the composite/adhesive interface. All aged groups had greater gap values in regard to the gap measurement and the sum of all gap categories compared with non-aged groups. Significance: The incrementally placed material FSU had the highest internal adaptation to the cavity surface, while the four bulk-fill materials showed varied results. Thermocycling influenced the existing gap area magnitudes. The findings suggest that the incremental-fill technique produces better internal adaptation than the bulk-fill technique.

The Conservation of Ancient Glass

2002 ◽  
Vol 757 ◽  
Author(s):  
Alice Boccia Paterakis
Keyword(s):  
The State ◽  
Ancient Glass ◽  
Pre Treatment ◽  
Corrosion Mechanisms ◽  
Fill Materials

ABSTRACTGlass undergoes various corrosion mechanisms during burial. The state of deterioration and corrosion phenomena are deciding factors in the choice of conservation materials and techniques. Among the conservation treatments reviewed for ancient, archaeological glass are pre-treatment storage, cleaning, consolidation of weakened and de-vitrified glass, adhesives for reconstruction, and fill materials for restoration. The most recent materials and techniques used by conservators are presented. The concepts of permanence and reversibility with regard to conservation methods and materials are examined.

BTEX and heavy metals removal using pulverized waste tires in engineered fill materials

Chemosphere ◽  
2020 ◽  
Vol 242 ◽  
pp. 125281 ◽  
Author(s):  
Rahim Shahrokhi-Shahraki ◽  
Patrick Sun Kwon ◽  
Junboum Park ◽  
Brendan C. O’Kelly ◽  
Shahabaldin Rezania
Keyword(s):  
Heavy Metals ◽  
Heavy Metals Removal ◽  
Waste Tires ◽  
Metals Removal ◽  
Fill Materials

Polymerization Shrinkage Stress Kinetics and Related Properties of Bulk-fill Resin Composites

2014 ◽  
Vol 39 (4) ◽  
pp. 374-382 ◽  
Author(s):  
HM El-Damanhoury ◽  
JA Platt
Keyword(s):  
Standard Procedure ◽  
Stress Rate ◽  
Shrinkage Stress ◽  
Resin Composites ◽  
Polymerization Shrinkage ◽  
Significance Level ◽  
Microhardness Data ◽  
Knoop Microhardness ◽  
Kinetics Of ◽  
Fill Materials

SUMMARY The present study assessed the polymerization shrinkage stress kinetics of five low-shrinkage light-cured bulk-fill resin composites: Surefil SDR flow (SF, Dentsply), Tetric EvoCeram Bulkfil (TE, Ivoclar Vivadent), Venus Bulk Fill (VB, Heraeus Kulzer), x-tra fil (XF, Voco), and experimental bulk fill (FB, 3M ESPE). Filtek Z250 (FZ, 3M ESPE) was used as a control. Real-time shrinkage stress of investigated composites was measured using a tensometer; maximum shrinkage stress, stress rate (Rmax), and time to reach maximum stress rate (tmax) were recorded. Flexural strength and modulus were measured using a standard procedure, and curing efficiency of 4-mm long specimens was determined using bottom/top percentage Knoop microhardness. Data were analyzed using one-way analysis of variance and Bonferroni multiple range tests at a significance level of α=0.05. Results of shrinkage stress, Rmax, and tmax of all bulk-fill materials were significantly lower (p<0.05) than those of the control except for XF. All tested bulk-fill materials were able to achieve acceptable curing efficiency (≥80% bottom/top percentage) at 4-mm depth. In conclusion, this study reports a significant reduction in polymerization shrinkage stress while maintaining comparable curing efficiency at 4 mm for some bulk-fill composites and supports their potential use in posterior clinical situations.

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