Results 61 to 70 of about 3,147,947 (209)

Key advances in development of straw fibre bio-composite boards: An overview

open access: yesMaterials Research Express, 2020
In recent years, considerable attention have been given to the development and utilization of biodegradable fibres for bio-composite boards. This is due to the increase in the environmental consciousness and the need for sustainable development which ...
John Tosin Aladejana   +3 more
doaj   +1 more source

Structural characteristics, compression and strength properties of plain weft-knitted fabrics before and after washing [PDF]

open access: yesTekstilna industrija, 2023
The structural characteristics, compression, and strength properties of knitted fabrics, before and after washing, were investigated in this paper. The experimental material consisted of three plain weft-knitted fabrics produced of cotton, wool, and ...
Asanović Koviljka   +3 more
doaj  

The influence of nucleus dates waste and ceramic wastes in sustainable concrete

open access: yesSustainable Structures
Recycling has progressed recently, turning specific non-renewable resources into renewable ones. This has led to a considerable increase in research on using waste materials such as ceramic and nucleus date waste as alternative aggregate materials in ...
Radwa Defalla Abdel Hafez   +2 more
doaj   +1 more source

Criterion assessment of the possibility to prolong the service life limit of the helicopter tail drive shaft

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017
Low life time of home-produced helicopter transmission elements in comparison with foreign analogues is one of the problems of Russian helicopter industry. For example, the service life limit of Mi-2 drive shaft is 4,500 hours, the time between overhauls
O. F. Mashoshin, R. L. Semenikhin
doaj   +1 more source

Physico-mechanical properties of polymer concrete containing micro-filler of palm oil fuel ash [PDF]

open access: yes, 2018
Objective of this study is to present a research conducted on ground (fine) and unground (coarse) POFA in polymer concrete (PC) followed by determination on the physico-mechanical properties of PC.
A. Hamid, Noor Azlina   +8 more
core   +1 more source

Fine-grained concrete with various types of fibers

open access: yesИнженерно-строительный журнал, 2020
This paper investigates the strength properties of the fine-grained concrete reinforced with the amorphous fiber based on the Fe-B-C system and obtained by the "spinning" method, and concretes reinforced with commercially available types of fibers: fiber
Yasmin Begich   +3 more
doaj   +1 more source

Mechanical Properties of the Mineral Cast Material at the Macro and Micro Level. [PDF]

open access: yes, 2016
The paper presents the results of experimental examination of the mechanical properties at micro and macro scale of the mineral cast composites. Studies have been conducted to verify the literature data about the value of tensile strength, compressive ...
Kaczmarek, Łukasz   +3 more
core  

Uniaxial Compression Behavior of Large-Scale Jointed Rock Mass Containing Karst Caves Under Local Load of Pile Foundation

open access: yesBuildings
The stability of rock masses in karst regions is critically influenced by the coexistence of karst caves and joints. This study investigates the mechanical behavior, energy evolution, and failure modes of large-scale (1 m3) rock-like specimens containing
Jianmin Guo   +4 more
doaj   +1 more source

Use of Reclaimed Aggregates in Flexible Pavement [PDF]

open access: yesE3S Web of Conferences
A strong road system is essential for a nation's economy to develop quickly since it connects outlying locations to the rest of the country for use in many types of transportation.
Sharma Navee, Tiwari Aditya
doaj   +1 more source

The Effect of Varying Drying Temperatures on the Recyclability of Thermomechanical Pulps [PDF]

open access: yes, 1997
There has been conflicting data regarding the effects of recycling on pulps. Strength properties go down for chemical pulps after being recycled, but the strength properties go up for mechanical pulps after recycling.
Collegnon, Jeffry J.
core   +1 more source

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