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Mechanical properties of recycled concrete aggregates could be improved by adding activated water instead of ordinary water.
There are many different factors such as the kinds and amounts of alkali and the water slag ratio affecting the compressive strength of recycle geopolymer.
Particles with poor mechanical properties, such as needle flake or sundries, are took out when using as recycled aggregates in the experiment.
There are different factors which impact the compressive strength of recycled geolymer.
There are many different factors that affect the compressive strength, the sort and the content of alkali, the modulus of sodium silicate and the water slag ratio.

Mechanical properties are focused on determining stress-strain curves for each characteristic weld region.
While establishing the welding procedure for HSS grades, it is very important to determine the correct welding parameters that leads to least degradation of mechanical properties in Heat Affected Zone (HAZ).
The HAZ can be further divided into several characteristic regions with different microstructures and mechanical properties.
Optical micrographs Mechanical Properties.
Bettayeb, Effects of martensite-austenite constituents on mechanical properties of heat affected zone in high strength pipeline steels-review, Chemical Engineering Transactions 70 (2018), 583-588. doi: 10.3303/CET1870098 [7] D.

Influence of WC Particulate Reinforcement on the Mechanical Properties and Sliding Wear of Al6061 Alloys G B Veeresh Kumar1,a*, R Pramod1,b 1Amrita Vishwa Vidyapeetham, Bangalore, Karnataka, India aveeru232@gmail.com, base.pramod@gmail.com Keywords: Metal matrix composites (MMCs), Mechanical testing, Mechanical properties, Wear.
In this paper, the investigational results of the sliding and mechanical properties of Al6061–WC metal matrix composites are discussed.
The mechanical properties were assessed using fully computerised UTM by Finespavy Associates -TUE 400C model of 400 kN capacity with 4 N least count.
Many investigators have attributed the increase in hardness as one of the factors for higher wear resistance along with second phase volume content [19].
The wear rate of Al-alloy and composites are affected by applied load it is the most dominating factor in controlling the wear behaviour [26].

In dissimilar weld joints, the mechanical properties changes vary sharply and from fusion zone to base materials [7].
These changes can be strongly influenced by the properties of heat affected zone HAZ and alloying elements distribution throughout weld joint.
Moreover, during the investigation of hybrid welding parameters of low alloy steel [13], it has been found that welding current provided the main factor affecting mechanical properties of hardness and tensile strength.
Then, the mean S/N ratios at each level for various factors and the optimal level (the largest S/N ratio among all levels of the factors) could be calculated.
There are therefore eight degrees of freedom of the three factors.

Mechanical Properties and Creep Behavior of Carbon Fiber Nano-Composites Yi-Luen Li1,a, Wei-Jen Chen1, b, Ming-Yuan Shen1, c, Chin-Lung Chiang2, d and Ming-Chuen Yip*,1,e 1 Department of Power Mechanical Engineering, National Tsing Hua University, Hsin-Chu, Taiwan 2 Department of Safety, Health and Environmental Engineering, Hung-Kuang University, Taichung, Taiwan ad550309@yahoo.com.te, bd937716@oz.nthu.edu.tw, chbj678@seed.net.tw, ddragon@sunrise.hk.edu.tw, emcyip@pme.nthu.edu.tw Keywords: Carbon nanotube, Electrical conductivity, Mechanical properties Abstract.
Recently, it has been observed that surface modification of carbon nanotubes（CNTs）influences on CNT’s distribution among epoxy resin and affects the mechanical properties and electrical conductivities of CNTs.
Owing to above-mentioned effects, carbon nanotubes treated with oxidizing in organic acids, a kind of surface modification, generates functional groups on the surface of CNTs taht is a major investigation in this study to enhance mechanical properties and electrical conductivities of CNTs.
The influence of the different proportion contents of CNTs added into epoxy resin on mechanical properties and electrical conductivities of composites was investigated, and strength of material tested under different temperature environments was observed.
From the test results and comparisons of creep behavior between CF/epoxy and CNT/CF/epoxy resin laminates tested under various circumstances, loading, temperature and humidity can be regarded as the crucial factors to influence on the creep behavior.

And the 3 layer Untreated fabric composite have lower mechanical properties in the range of 12.2 MPa in tensile properties, 30.1 MPa in flexural Properties, and 18.2 joules impact properties than the others.
And the 4 layer T1 have lower mechanical properties in the range of 20.4 MPa in tensile properties, 53.7 MPa in flexural Properties, and 38.2 joules impact properties than the others.
And the 4 layers of T2 have lower mechanical properties in the range of 24 MPa in tensile properties, 56 MPa in flexural Properties, and 56 joules of impact properties than the others.
And the 4 layers of T3 have lower mechanical properties in the range of 25.2 MPa in tensile properties, 58 MPa in flexural Properties, and 50.2 joules of impact properties than the others.
It was also noted that the mechanical properties were affected based upon two factors as mentioned below. 1.

Investigating the influence of process parameters is vital to enhance the mechanical properties of nanoparticle reinforced polymer composites.
Indeed, introducing small amounts of nanoclay to the matrix may alter its mechanical properties, severely.
Different factors affecting the exfoliation degree of nanocomposites including; compatibilizer utilization, re-extrusion and nanoclay weight fraction are taken into account.
Preparation and Mechanical Properties of PolypropyleneClay Hybrids.
Studies on morphology and mechanical properties of dispersing intercalated silane montmorillonite in polypropylene matrix.

The nuclear class mechanical equipment with high reliability is required in nuclear power plant, but heat treatment is an important factor which affects reliability of mechanical equipment.
As a result, steels with a good corrosion resistance and adjusted mechanical properties by heat treatment are gradually developed [4]. 
Therefore, Deformation and cracking can be effectively prevented only when these factors are considered and appropriate measures are taken. 
However, many problems raised in practice, and these problems are caused by human factors.
Since there will inevitably be intermediate annealing and post-weld heat treatment in the production of the pressure vessel, in particular the temperature of the heat treatment after welding is close to or exceeds the performance of the tempering heat treatment temperature, the mechanical properties of the base material will be affected.

coalbed mechanical properties.
Roof mechanical properties and interfacial properties.
Mechanical properties of the roof is an important factor affecting the coal fracture.
Therefore, it’s important to study the rock mechanical properties of different rank coal and its impact on hydraulic fracture.
Natural fractures cleats, stress, and other factors can effect coal and rock mechanical properties of coal hydraulic fracturing rock fracture initiation, propagation mechanism. 2.

FACTORS AFFECTING LEADTIME IN SPINNING MILLS K.T.Anand1,a*, A.
Abstract An investigation of the factors which affect lead time in spinning mills producing carded and combed counts is reported.
Conclusion In this paper, the factors that affect lead time in 40 Ne carded and combed counts have been discussed.
Govindarajulu, Some factor affecting yarn irregularity, Journal of the Textile Institute 65 (1974) 61 – 67
Khairul Akter, Analysis of the factors affecting the lead time for export of readymade apparels from Bangladesh; proposals for strategic reduction of lead time, European Scientific Journal 10 (2014) 268 – 283