scholarly journals Effects of polyester fibers and gamma irradiation on mechanical properties of polymer concrete containing CaCO3 and silica sand

2009 ◽  
Vol 3 (10) ◽  
pp. 615-620 ◽  
Author(s):  
E. A. Bobadilla-Sanchez ◽  
G. Martinez-Barrera ◽  
W. Brostow ◽  
T. Datashvili
Keyword(s):  
Mechanical Properties ◽  
Gamma Irradiation ◽  
Silica Sand ◽  
Polymer Concrete ◽  
Polyester Fibers

Polymer concretes improved by fiber reinforcement and gamma irradiation

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Gonzalo Martínez-Barrera ◽  
Ana Laura Martínez-Hernández ◽  
Carlos Velasco-Santos ◽  
Witold Brostow
Keyword(s):  
Gamma Irradiation ◽  
Irradiation Dose ◽  
Polyester Resin ◽  
Unsaturated Polyester ◽  
Compression Modulus ◽  
Silica Sand ◽  
Polymer Concrete ◽  
Compressive Properties ◽  
Atactic Polypropylene ◽  
Scanning Electron

AbstractThe well-known key problem with concrete is that its compressive strength and the compression modulus are insufficient for a variety of applications. Our polymer concrete (PC) consists of an unsaturated polyester resin as the polymeric matrix, silica sand as the inorganic aggregate, plus atactic polypropylene (PP) fibers. A further property improvement can be achieved by gamma irradiation and we apply here two methods. The first method consists in irradiation of PP fibers first and then adding them to the PC. The second route consists in irradiation of PC after inclusion of PP fibers. Along both routes we have applied the radiation at dosages ranging from 5 to 150 kGy. In the second route irradiation of silica sand results in larger contact areas of surfaces with PP fibers and with the polyester resin-as seen in scanning electron microscopy. The second route provides compressive properties which is better by a factor of two or three (depending on the irradiation dose) than the first one.

scholarly journals Material-removing machining wastes as a filler of a polymer concrete (industrial chips as a filler of a polymer concrete)

2021 ◽  
Vol 28 (1) ◽  
pp. 343-351
Author(s):  
Norbert Kępczak ◽  
Radosław Rosik ◽  
Mariusz Urbaniak
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Young’S Modulus ◽  
Industrial Waste ◽  
Splitting Tensile Strength ◽  
Polymer Concrete ◽  
Strength Parameters ◽  
Basic Parameters ◽  
Natural Fillers

Abstract The paper presents an impact of the addition of industrial machining chips on the mechanical properties of polymer concrete. As an additional filler, six types of industrial waste machining chips were used: steel fine chips, steel medium chips, steel thick chips, aluminium fine chips, aluminium medium chips, and titanium fine chips. During the research, the influence of the addition of chips on the basic parameters of mechanical properties, i.e., tensile strength, compressive strength, splitting tensile strength, and Young’s modulus, was analyzed. On the basis of the obtained results, conclusions were drawn that the addition of chips from machining causes a decrease in the value of the mechanical properties parameters of the polymer concrete even by 30%. The mechanism of cracking of samples, which were subjected to durability tests, was also explored. In addition, it was found that some chip waste can be used as a substitute for natural fillers during preparation of a mineral cast composition without losing much of the strength parameters.

Effects of gamma irradiation on some mechanical properties of novoloid fibers

2004 ◽  
Vol 5 (2) ◽  
pp. 156-159 ◽  
Author(s):  
Y. Ulcay ◽  
S. Altun
Keyword(s):  
Mechanical Properties ◽  
Gamma Irradiation

Synergetic effect of freeze-drying and gamma irradiation on the mechanical properties of human cancellous bone

2010 ◽  
Vol 12 (4) ◽  
pp. 281-288 ◽  
Author(s):  
Olivier Cornu ◽  
Jérome Boquet ◽  
Olivier Nonclercq ◽  
Pierre-Louis Docquier ◽  
John Van Tomme ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Gamma Irradiation ◽  
Cancellous Bone ◽  
Freeze Drying ◽  
Synergetic Effect ◽  
Human Cancellous Bone

scholarly journals Development of a New ATD-P Tester for Hard Wear Resistant Materials

2017 ◽  
Vol 17 (1) ◽  
pp. 37-40 ◽  
Author(s):  
M. Dojka ◽  
R. Dojka ◽  
A. Studnicki
Keyword(s):  
Mechanical Properties ◽  
Thermal Analysis ◽  
Cast Iron ◽  
Computer Simulations ◽  
Silica Sand ◽  
Wear Resistant ◽  
Chromium Cast Iron

Abstract The aim of presented studies was to develop a new geometry of the overflow part of standard ATD-C tester for derivative thermal analysis in a way that it would allow to obtain samples for abrasion and mechanical properties tests in the same mould without the need of cutting them from a block of material. The pattern of new ATD-P tester has parts reflecting implemented samples. Computer simulations regarding initial verification of new tester were performed in NovaFlow software. Chromium cast iron melts were made for testing the sampler in real conditions and TDA analysis for casting material were conducted. The sandmix was prepared on silica sand matrix per the ALPHASET technology. This new solution greatly simplifies the preparations of materials difficult to machine.

Gamma irradiation induced effects on mechanical properties of chitosan-glycerol for edible coating

2021 ◽  
Author(s):  
Akhmad Rasyid Syahputra ◽  
Ade Lestari Yunus ◽  
Nunung Nuryanthi ◽  
Oktaviani ◽  
Tita Puspitasari
Keyword(s):  
Mechanical Properties ◽  
Gamma Irradiation ◽  
Edible Coating
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