Comparative Study of Water Absorption Behavior in Biopol® and Jute-reinforced Biopol® Composite using Neutron Radiography Technique

2006 ◽  
Vol 25 (11) ◽  
pp. 1179-1187 ◽  
Author(s):  
M. K. Alam ◽  
M. A. Khan ◽  
E. H. Lehmann
Keyword(s):  
Comparative Study ◽  
Water Absorption ◽  
Neutron Radiography

scholarly journals Study of Homogeneity and Water Absorption Behavior of Double Layer Silver Gray Tiles Using Film Neutron Radiography Technique

1970 ◽  
Vol 43 (2) ◽  
pp. 197-206
Author(s):  
MK Alam ◽  
MN Islam ◽  
MA Zaman
Keyword(s):  
Water Absorption ◽  
Double Layer ◽  
Optical Density ◽  
Immersion Time ◽  
Building Materials ◽  
Neutron Radiography ◽  
Radiographic Image ◽  
Radiographic Images ◽  
Building Products ◽  
Density Values

Neutron radiography (NR) technique has been adopted to study homogeneity and water absorption behavior of building materials, like double layer silver gray tiles obtained from Concord Real Estate & Building Products, Unit II, Salna, Gazipur, Dhaka, Bangladesh. Measurements of optical density differences between the film background and radiographic images of the dry/wet samples were used for investigation of the present work. The optical density was measured by using the digital optical densitometer (Model 07-424, S-23285, Victoreen Inc. USA). Large variation in optical density values of the radiographic image was observed. From this observation it shows that the rate of water absorption of the tiles increases with increase of immersion time. Through the investigation of radiographic image and subsequently analyzing the optical density we observed that distribution of the elements in the tiles are inhomogeneous. Key words: Homogeneity, Water absorption, Silver gray, Neturon radiography.DOI: 10.3329/bjsir.v43i2.963 Bangladesh J. Sci. Ind. Res. 43(2), 197-206, 2008

Properties of Dan Kwian, Sukhothai and Ratchaburi Pottery Clays Fired at 700 and 900 °C

2014 ◽  
Vol 608 ◽  
pp. 47-61
Author(s):  
Nonglak Meethong ◽  
Wanwisa Pattanasiriwisawa ◽  
Weenawan Somphon ◽  
Waraporn Tanthanuch ◽  
Sutham Srilomsak
Keyword(s):  
Specific Gravity ◽  
Comparative Study ◽  
Water Absorption ◽  
Bulk Density ◽  
Firing Temperature ◽  
Reflectance Spectra ◽  
Modulus Of Rupture ◽  
Regression Equations ◽  
Statistical Software

Dan Kwian, Sukhothai and Ratchaburi pottery clays are economically important pottery clays. They are well known in the Thai ceramic society for making Dan Kwian pottery, Sawankhalok pottery and Dragon jars, respectively. There have been several studies of these pottery clays. However, few of them used statistics to analyze their results. This work is a comparative study of the compositions and properties of these three pottery clays using statistical software to analyze the results. Results show that the major components of these pottery clays are SiO2 and Al2O3. The Modulus of Rupture (MOR) of each pottery clay fired at 700°C are not significantly different. Sukhothai pottery clay fired at 900°C has a higher MOR and bulk density while its porosity, water absorption and apparent specific gravity are less than those of the Dan Kwian and Ratchaburi pottery clays fired at the same temperature. Additionally, the current study developed regression equations for estimating the properties of all pottery clays under study. Finally, it was found that the L*, a*, b* and reflectance spectra of all pottery clays increased when firing temperature was increased from 700 to 900°C.

Water Absorption into Construction Materials: Comparison of Neutron Radiography Data with Network Absorption Models

2006 ◽  
Vol 63 (3) ◽  
pp. 503-525 ◽  
Author(s):  
Cathy J. Ridgway ◽  
Patrick A. C. Gane ◽  
Abd El-Ghany El Abd ◽  
Andrzej Czachor
Keyword(s):  
Water Absorption ◽  
Neutron Radiography ◽  
Construction Materials ◽  
Absorption Models

A Comparative Study of Granular Agglomeration between 3D Printed Hydroxyapatite and Commercial Bone Graft Granules

2019 ◽  
Vol 798 ◽  
pp. 83-87
Author(s):  
Faungchat Thammarakcharoen ◽  
Ariya Yampakdee ◽  
Bovornwut Buranawat ◽  
Jintamai Suwanprateeb
Keyword(s):  
Phase Composition ◽  
Comparative Study ◽  
Bone Graft ◽  
Water Absorption ◽  
Tricalcium Phosphate ◽  
Water Film ◽  
Xrd Analysis ◽  
High Porosity ◽  
Capillary Action ◽  
3D Printed

Granule characteristics and the agglomeration ability of 3D printed hydroxyapatite granules (3DP HA) when contacting water were compared to those of commercial bone graft granules based on hydroxyapatite/β-tricalcium phosphate/collagen mixture (Sunmax). Microstructure, phase composition, water absorption and granular agglomeration of the granules were characterized. SEM showed that the granule sizes of Sunmax were in the range of 0.8-1.5 mm whereas that of 3DP HA was relatively more uniform at about 1 mm. 3DP HA granules comprised the weaving of numerous minute crystals containing large pores and having high porosity while Sunmax granules were crushed granules and having low porosity. XRD analysis confirmed that Sunmax granules were biphasic hydroxyapatite and β-tricalcium phosphate while 3DP HA granules were monophasic hydroxyapatite. Sunmax granules exhibited greater agglomeration volume than that of 3DP HA granules. However, the water absorption of 3DP HA granules was greater than that of Sunmax granules. The greater agglomeration ability of Sunmax granules was likely due to the collagen constituent of the granules which could act as adhesive to bind granules together in addition to water capillary action. In contrast, 3DP HA granules formed the agglomeration by the water film due to the capillary action only so the efficiency was lower although the water absorption was greater.

Study of Water Absorption Behavior in Wood Plastic Composites by Using Neutron Radiography Techniques

2003 ◽  
Vol 42 (5) ◽  
pp. 925-934 ◽  
Author(s):  
M. N. Islam ◽  
Mubarak A. Khan ◽  
M. K. Alam ◽  
M. A. Zaman ◽  
M. Matsubayashi
Keyword(s):  
Water Absorption ◽  
Neutron Radiography ◽  
Wood Plastic Composites ◽  
Plastic Composites

A comparative study of sodium dodecyl sulfate and freezing/thawing treatment on wheat starch: The role of water absorption

2016 ◽  
Vol 143 ◽  
pp. 149-154 ◽  
Author(s):  
Han Tao ◽  
Pei Wang ◽  
Bao Zhang ◽  
Fengfeng Wu ◽  
Zhengyu Jin ◽  
...  
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Comparative Study ◽  
Water Absorption ◽  
Sodium Dodecyl ◽  
Wheat Starch ◽  
Dodecyl Sulfate

Comparative Study of the Chemical Degradation Effects on Polymer Concrete with Limestone Aggregates

2012 ◽  
Vol 730-732 ◽  
pp. 421-426
Author(s):  
Carmen Galán-Marín ◽  
Carlos Rivera-Gómez
Keyword(s):  
Comparative Study ◽  
Water Absorption ◽  
Optical Microscopy ◽  
Visual Observation ◽  
Chemical Degradation ◽  
Natural Stone ◽  
Polymer Concrete ◽  
Polymer Mortar ◽  
Industrial Environments

The objective of this paper is to investigate the influence of chemical degradation effects on polyester polymer mortar (PM). For this purpose, different dosages of siliceous and limestone PMs and natural stone specimens were exposed to representative degradation agents. Since the motivation for the research was to determine the durability of polymer mortar, it was considered important to simulate the types of aggressive environments that could conceivably be brought into contact with the material in domestic and industrial environments. In this paper, the possible variation of the surface aspect, water absorption and mass of the tiles after being immersed the specimens in different solutions, was measured and considered by visual observation and optical microscopy. As a conclusion PMs stability is strongly affected by the adhesion between matrix and aggregates at interface, and it is also dependent of the nature and packing level of aggregates.

scholarly journals COMPARATIVE STUDY OF PHYSICOMECHANICAL PROPERTIES OF ULTRABASIC ROCKS AND ANDESITES FROM CENTRAL MACEDONIA (GREECE)

2017 ◽  
Vol 50 (4) ◽  
pp. 1989 ◽  
Author(s):  
P. Petrounias ◽  
A. Rogkala ◽  
M. Kalpogiannaki ◽  
B. Tsikouras ◽  
K. Hatzipanagiotou
Keyword(s):  
Comparative Study ◽  
Water Absorption ◽  
Laboratory Tests ◽  
Volcanic Rocks ◽  
Evaluation Criteria ◽  
Industrial Applications ◽  
Physicomechanical Properties ◽  
Textural Features ◽  
Factors Affecting ◽  
Major Factors

Petrographic, geochemical and physicomechanical features were determined and inter-correlated in two representative ultrabasic samples from the Veria-Naousa ophiolite and two Pliocenic andesite samples, occurring at the east of the above complex. Results show that mineralogical and textural features are major factors affecting the physicomechanical properties in both lithotypes. The ultrabasic rocks display higher resistance to attrition and abrasion and lower water absorption values relative to the intermediate volcanic rocks, hence the first are predicted to show better in-service engineering performance. However, the degree of serpentinisation is detrimental, as a highly serpentinised ultrabasic sample yielded poor results, analogous to the andesites, in certain laboratory tests. Ophiolite complexes in Greece are abundant and they are distributed along several mainland areas. Hence setting evaluation criteria for their quality is important as they can potentially replace limestones, which are less resistant and durable, in several environmental and industrial applications

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