scholarly journals Evaluation of Tensile Adhesion Strength in Simulated Dust Cakes on Fabric Filters

2020 ◽  
Author(s):  
Qian Zhang ◽  
David Horst ◽  
Eberhard Schmidt
Keyword(s):  
Adhesion Strength ◽  
Tensile Adhesion

scholarly journals The effect of fly ash and granulated blast furnace slag on slip and tensile adhesion strength of tile adhesives mortars

2020 ◽  
Vol 322 ◽  
pp. 01017
Author(s):  
Michał Wieczorek
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Adhesion Strength ◽  
Blast Furnace Slag ◽  
Portland Cements ◽  
Optimal Amount ◽  
Functional Parameters ◽  
Granulated Blast Furnace Slag ◽  
Tensile Adhesion ◽  
Furnace Slag

In the formulations of adhesive mortars for tiles almost exclusively CEM I Portland cements are used. Practically no CEM II - CEM V cements with additives are used, although they are often produced with strength classes 32.5 R and some even 42.5R. Relationship between strengths of tile adhesives in which cement was partially replaced with fly ash and granulated blast furnace slag was studied. A fly ash was used in three different replacement levels from 5% to 25% by weight of either cement. The tensile adhesion were determined at 28 and 90 days after various conditioning conditions of the samples. The influence on the flexibility of mortars was also assessed. In small substitution levels, fly ash replacement increased the tensile adhesion strength. The results indicate that the optimal amount of fly ash and granulated blast furnace slag additive replacing a given amount of cement allows to obtain adhesive mortars for tiles with high functional parameters.

scholarly journals Assessment of the Constancy of Performance of Cementitious Adhesives for Ceramic Tiles: Analysis of the Test Results Commissioned by Polish Market Surveillance Authorities

2020 ◽  
Vol 10 (18) ◽  
pp. 6561
Author(s):  
Mateusz Łukasik ◽  
Bartosz Michałowski ◽  
Jacek Michalak
Keyword(s):  
Adhesion Strength ◽  
Test Results ◽  
Ceramic Tiles ◽  
Market Surveillance ◽  
Complex Process ◽  
Open Time ◽  
Construction Supervision ◽  
Basic Characteristics ◽  
Rule Method ◽  
Tensile Adhesion

Assessment and verification of constancy of performance (AVCP) is a complex process. Without it, the manufacturer cannot mark the product with the Conformitè Europëenne (CE) marking and place it on the EU market. The verification of the correctness of the AVCP is carried out by market surveillance. In Poland, supervision authorities regularly check manufacturers by collecting construction products that exist on the market for inspection. Among the dry-mix mortars, adhesives for ceramic tiles (CTA) constitute an essential group. The requirements for CTAs are specified in EN 12004. According to the standard, the basic characteristics of cementitious CTAs are tensile adhesion strength and open time. The adhesion measurements are performed after various laboratory conditions tests. The study analyzes the results obtained for 129 samples of cementitious CTAs, collected between the years 2016 and 2019 from the market, and tested in notified laboratories at the request of Polish construction supervision authorities. Many tested products did not meet the threshold values, which resulted in removing them from the market. The paper discusses the complexity of the tensile adhesion strength measurement. The obtained test results are considered in various dimensions, including using the simple acceptance rule method when evaluating the results, which does not consider the measurement uncertainty.

Study of the Adhesion Strength of Plasma-Sprayed Coatings Using Statistical Methods

2020 ◽  
Vol 897 ◽  
pp. 56-60
Author(s):  
Nikolay Kuleshov ◽  
Nikolay Dolgov ◽  
Igor Smirnov ◽  
Leonid Vinogradov ◽  
Vladimir Shestakov
Keyword(s):  
Plasma Spraying ◽  
Adhesion Strength ◽  
Ceramic Coatings ◽  
Optimization Criterion ◽  
Alumina Powder ◽  
Nano Powder ◽  
Plasma Sprayed Coatings ◽  
Tensile Adhesion ◽  
Plasma Sprayed ◽  
Sprayed Coatings

The adhesion strength of plasma-sprayed ceramic coatings was studied. Alumina powder was used for plasma spraying. A titanium oxide Nano powder with a particle size of 40-50 [nm] was used as a modifier. The optimal conditions of plasma spraying of coatings are established. The adhesion strength was used as an optimization criterion. Coating adhesion was determined by tensile adhesion testing. A mathematical model is obtained that allows one to determine the effect of spraying conditions (lens current, arc current, and the position of the solenoid relative to the nozzle) on the adhesion strength.

Effect of the Conservation Treatment of Historical Ceramic Tiles on the Tensile Adhesion Strength

2011 ◽  
Vol 5 (2) ◽  
pp. 241-250
Author(s):  
Ariana Russo ◽  
Maria Rosário Veiga ◽  
Maria Fátima Vaz ◽  
Ana Paula Carvalho
Keyword(s):  
Adhesion Strength ◽  
Ceramic Tiles ◽  
Conservation Treatment ◽  
Tensile Adhesion

Lamination of Chitin-Cellulose Film and Thermoplastic Starch

2018 ◽  
Vol 775 ◽  
pp. 81-88 ◽  
Author(s):  
Maria Janine D. Manuzon ◽  
Marianne L. Macailing ◽  
Leslie Joy L. Diaz
Keyword(s):  
Adhesion Strength ◽  
Interfacial Adhesion ◽  
Thermoplastic Starch ◽  
Strength Test ◽  
Scanning Electron Micrographs ◽  
Cellulose Film ◽  
Oh Groups ◽  
Cellulose Films ◽  
Tensile Adhesion ◽  
Direct Tensile

In this study, chitin-cellulose films (CC) and nanocomposite (NC) films were successfully laminated to thermoplastic starch (TPS). These were prepared using adhesive, controlled heated compression, and heated compression with adhesive. Lamination was investigated by utilizing direct tensile adhesion strength test to acquire the adhesion strength between the two layers. The highest adhesion strength of 0.502±0.036 MPa resulted for CC/TPS. Combination of failure at the interface and substrate was observed for most CC/TPS laminates. FTIR spectra indicated presence of -NH groups from chitin and -OH groups from starch and cellulose that could improve interfacial adhesion by hydrogen bonding. Scanning Electron Micrographs (SEM) showed a rough surface of chitin-cellulose films, and the clear continuity of CC film with TPS. An increase in modulus from from 0.342 ± 0.020 MPa for TPS to 1.059 ± 0.162 for CC/TPS and 0.939 ± 0.143 MPa for NC/TPS.

scholarly journals Interlaboratory Comparison as a Source of Information for the Product Evaluation Process. Case Study of Ceramic Tiles Adhesives

Materials ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 253
Author(s):  
Cristina Stancu ◽  
Jacek Michalak
Keyword(s):  
Adhesion Strength ◽  
Interlaboratory Comparison ◽  
Water Immersion ◽  
Evaluation Process ◽  
Product Evaluation ◽  
Assessment Process ◽  
Ceramic Tiles ◽  
Score Analysis ◽  
Constant Quality ◽  
Tensile Adhesion

In this study, the results obtained by 19 laboratories participating in 2 editions of the interlaboratory comparison (ILC) determining 2 properties of ceramic tiles adhesives (CTAs), i.e., initial tensile adhesion strength and tensile adhesion strength after water immersion following EN 12004, were analyzed. The results show that participating laboratories maintain a constant quality of their work. The use of z-score analysis, under ISO 13528, allows for classifying 89.5% to 100% of laboratories as satisfactory, depending on the measurement’s kind and edition. The remaining laboratories are classified as questionable. The investigation of the predominant mode of failure of the CTA’s samples tested in the two editions shows significant differences. From the perspective of laboratories, the goal of the ILC has been achieved. From the standpoint of a manufacturer who evaluates a product’s properties when placing it on the market, the results indicate the necessity of a particular treatment of the product evaluation process because the variability of the obtained results is significant. It increases the possibility of the product failing to meet the assessment criteria verified by the construction market supervision authorities. The manufacturer must consider all possible variations in the risk analysis, including the ILC results, to improve the assessment process of CTAs.

Adhesion Evaluation of TiN and (Ti, Al)N Coatings on Titanium 6Al-4V

1995 ◽  
Vol 410 ◽  
Author(s):  
R. D. James ◽  
D. L. Paisley ◽  
K. A. Gruss ◽  
S. Parthasarthi ◽  
B. R. Tittmann ◽  
...  
Keyword(s):  
Adhesion Strength ◽  
High Speed ◽  
Electron Beam Evaporation ◽  
Acoustic Microscopy ◽  
Microscopy Analysis ◽  
Cathodic Arc Evaporation ◽  
Tensile Adhesion ◽  
Arc Evaporation ◽  
Cathodic Arc ◽  
Titanium Aluminum Nitride

ABSTRACTTo assess the adhesion of nitride coatings on metals, titanium 6% aluminum 4% vanadium substrates were coated with titanium nitride (TiN) using both cathodic arc and electron beam evaporation. Titanium aluminum nitride ((Ti, Al)N) was also deposited using cathodic arc evaporation. The interfaces of the coated samples were loaded in tension using a high speed shock wave which caused spallation either at the interface, in the coating or in the metal. Scanning acoustic microscopy analysis of the spalled samples detected delaminations at the interface in the samples deposited by cathodic arc evaporation. DYNA2D modeling of plate impact spallation experiments revealed the tensile adhesion strength for TiN deposited by both techniques was ≈ 2.0 GPa. The tensile adhesion strength for (Ti, Al)N was less than 1.5 GPa.

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