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Analysis of the Decomposition using the Short Degradation Technique of Polylactic Acid/Halloysite Nanotube Biocomposites [PDF]

MATEC Web of Conferences, 2022
The article presents results on the decomposition of polylactic acid (PLA)/halloysite nanotube (HNT) biocomposites. Experiments were carried out in laboratory conditions simulating composting in the industrial pile using the so-called short degradation ...
Czarnecka-Komorowska Dorota, Kostecka Ewelina, Bryll Katarzyna, Gawdzińska Katarzyna   +3 more
doaj   +1 more source

The Effects of Anisotropic Insulations with Different Spatial Distributions on Material Properties of Mortar Specimens

International Journal of Concrete Structures and Materials, 2017
Insulating concrete is a material designed to reduce heat conduction with pores/insulations, and these pores strongly affect the material characteristics.
Sang-Yeop Chung, Mohamed Abd Elrahman, Dietmar Stephan   +2 more
doaj   +1 more source

Properties of concrete containing coal bottom ash and fine coconut shell as partial sand replacement [PDF]

, 2020
The consumption of natural sand in concrete production is very high around the worldwide and it caused the shortage of natural fine aggregate which is suitable for construction in many countries [1].
Mazenan, Puteri Natasya, Sheikh Khalid, Faisal   +1 more
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Development of method for calculation of pre-strained steel cylindrical sheaths in view of the winding angle, pitch and thickness

Case Studies in Construction Materials, 2023
This paper sets out the findings of an investigation on the development of a method for calculating aboveground pre-strained cylindrical sheaths, in view of design parameters: the winding angle, pitch and thickness on a concrete base, as a result of ...
Ulzhan Ibraimova, Nurlan Zhangabay, Timur Tursunkululy, Murat Rakhimov, Serik Dossybekov, Alexandr Kolesnikov, Galymzhan Karshyga, Nurbek Tengebayev, Nazgul Zhirenbayeva, Yury Liseitsev   +9 more
doaj   +1 more source

Polyoxometalate (POM)-layered double hydroxides (LDH) composite materials: design and catalytic applications [PDF]

, 2017
Layered double hydroxides (LDHs) are an important large class of two-dimensional (2D) anionic lamellar materials that possess flexible modular structure, facile exchangeability of inter-lamellar guest anions and uniform distribution of metal cations in ...
Li, Tengfei, MIras, Haralampos N., Song, Yu-Fei   +2 more
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Comprehensive Estimation of Changes in the Microgeometry of Steel 45 by Ultrasonic Plastic Deformation with a Free Deforming Element

Metals, 2023
A method of ultrasonic surface plastic deformation is widely used to change the properties of the surface layers of metal products. Under the influence of this type of treatment, the structure of the material changes, microhardness increases, roughness ...
Dmitriy S. Fatyukhin, Ravil I. Nigmetzyanov, Vyacheslav M. Prikhodko, Aleksandr V. Sukhov, Sergey K. Sundukov   +4 more
doaj   +1 more source

Impact of lowered curing temperature on the compressive strength of polymer-cement repair mortars [PDF]

MATEC Web of Conferences, 2019
This article discusses the results of tests regarding mechanical properties of polymer-cement repair mortars which were cured at a lowered temperature.
Wojnowski Damian, Francke Barbara
doaj   +1 more source

A Comparison of the Effects of Ultrasonic Cavitation on the Surfaces of 45 and 40Kh Steels

Metals, 2022
The ultrasonic treatment of metal products in liquid is used mainly to remove various kinds of contaminants from surfaces. The effects of ultrasound not only separate and remove contaminants, they also significantly impact the physical–mechanical and ...
Dmitriy S. Fatyukhin, Ravil I. Nigmetzyanov, Vyacheslav M. Prikhodko, Aleksandr V. Sukhov, Sergey K. Sundukov   +4 more
doaj   +1 more source

Multi-method characterization of 50-year-old mass concrete from the nuclear power plant Unterweser in Germany: A forensic approach

Case Studies in Construction Materials
Concrete core samples extracted from the base of the 50-year-old reactor building at the Unterweser nuclear power plant in Germany were analyzed using contemporary and complementary experimental techniques.
Asim Rauf, Thomas Köberle, Christof Schröfl, Marko Butler, Viktor Mechtcherine   +4 more
doaj   +1 more source

Improving construction materials management practices in construction sites [PDF]

, 2017
Construction Materials Management is a vital function for improving productivity in construction projects. Poor materials management can often affect the overall construction time, quality and budget.
Ahmed, Fuad Hassan
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