نتایج جستجو برای: polypropylene fibres
تعداد نتایج: 24216 فیلتر نتایج به سال:
Sufficient experimentation is observed in literature to examine the brittle behaviour of concrete. Presently, addition different modified polymer and fibres can be treated as an effective way for improving Steel are now generally mixed with concrete because such sufficient strengths gained. Fibre Reinforced Concrete acquires high stiffness, strength durability subjected environment. In this exp...
Explosive spalling of pieces of concrete from the heated surface is considered to be the most dangerous effect of damage of concrete subjected to intense fire attack, especially when it occurs in restricted areas such as underground tunnels. Recent investigations have revealed that the amount of explosive spalling and the extent of cracking can considerably be reduced by use of suitable amount ...
چکیده ندارد.
The distribution of length and diameter and the aspect ratio of crocidolite asbestos, a mineral substitute for asbestos (wollastonite), a manmade mineral fibre (glass wool), and synthetic fibres (polypropylene and polyacrylonitrite) were determined by light microscopy with phase contrast and, for crocidolite, also with transmission electron microscopy. The synthetic organic fibres and manmade m...
To date, wool is an underutilised sustainable resource that has the potential to reduce use of plastic within environment. Wool can be manufactured as rope, but this a viable innovation? gain comprehensive understanding economic viability utilising rope in seaweed aquaculture, systematic literature review was undertaken. The focuses on wool, natural and man-made fibres farming, used bibliometri...
Gecko-inspired microfibre arrays with 42 million polypropylene fibres cm(-2) (each fibre with elastic modulus 1 GPa, length 20 microm and diameter 0.6 microm) were fabricated and tested under pure shear loading conditions, after removing a preload of less than 0.1 N cm(-2). After sliding to engage fibres, 2 cm2 patches developed up to 4N of shear force with an estimated contact region of 0.44 c...
Various papers based on high performance concrete (HPC) and their behaviour were studied. HPC’s containing different mineral as well as chemical admixtures exhibits different properties in fresh as well as hardened states. Several factors determine these properties like: type of mineral as well as chemical admixture, type of aggregates, water-cement ratio, curing method etc. Each paper takes in...
This paper is concerned with a new type of deployable structures that can be rolled up like a tape measure but, unlike a tape measure, are stable in two different configurations. The key to the behaviour of these structures is a particular type of composite construction based on an anti-symmetric lay-up of glass fibres in a polypropylene matrix. The paper presents a finite element analysis usin...
Abstract The modification of polypropylene fibre during their production is usually performed with the aim to improve some end‐use properties final textiles. most common procedure for fibres involves adding additives in form masterbaches, which are incorporated into polymer by physical means formation. presented work focused on investigation effect natural organic additive cellulose preparation...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید