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The Influence of Service Live factors on Concrete Mixed with Sea Sand and Seawater with the Addition of Zeolite on the Mechanical Properties of Concrete Wahyuni1,2,a, Abdullah3,b*, Yulia Hayati3,c dan Sri Mulyati4,d 1Doctoral Program in Engineering, Syiah Kuala University, Darussalam, Banda Aceh, 23111, Indonesia. 2Department of Civil Engineering, Faculty of Engineering, Muhammadiyah Aceh University, 23245 Banda Aceh, Indonesia 3Department of Civil Engineering, Faculty of Engineering, Syiah Kuala University, Darussalam, Banda Aceh, 23111, Indonesia 4Department of Chemical Engineering, Faculty of Engineering, Syiah Kuala University, Darussalam, Banda Aceh, 23111, Indonesia awahyuni@unmuha.ac.id, babdullahmahmud@usk.ac.id, cyuliahayati@usk.ac.id, dsri.mulyati@usk.ac.id Keywords: zeolite, sea-sand seawater, compressive strenght Abstract.
The use of concrete with sea sand and seawater has been the focus of previous research to enhance the properties and strength of the concrete.
The main objective of this research is to evaluate the mechanical properties of concrete using sea sand and seawater at the age of 14 and 56 days, comparing it with concrete using river sand and river water.
Girskas, “Research into the properties of concrete modified with natural zeolite addition,” Constr.
Obuseng, “A Review of the Chemistry, Structure, Properties and Applications of Zeolites,” Am.

Pore size, pore shape and load are the main factors on the high temperature compression creep properties in porous Cu alloys.
Among these, porosity, pattern of pore and pore size are assumed to be key factors on compression and creep properties, but only a few studies concerning the effect of pore on compression properties have been reported.
It can be seen from Figure 5, the load is one of the gold factors on porous Cu alloy high temperature compression behavior.
Conclusions (1) Pore size, load and pore shape are the main factors on the high temperature compression creep properties in porous Cu alloys.
Research on the mechanical properties of nickel alloy porous materials[J].

The data used to train the model encompasses factors like lattice strain, valence electron concentration ratio, mechanical stress, difference in entropy, and saturation magnetization.
This hypothesis takes into consideration factors like atomic number, valence electrons, and local magnetic moment.
This component might indicate, for instance, a mixture of factors affecting magnetic behavior.
The factors that affect the compound formation and mainly control the behavior of alloys include the lattice strain (LS), e/a ratio (EA), difference in entropy (EC), and saturation magnetization (SM).
High throughput search for Heusler compounds with favorable mechanical properties using machine learning.

The aim of this paper is to compare various types of PMMA based bone cements and their wear and mechanical properties obtained in two testing environments (saline and air).
Values of these properties for all materials varied in a small range.
Samples immersed in saline for different periods of time showed very similar values of mechanical properties to those obtained for freshly made samples.
The present dosages of antibiotics (around 1%) are sufficiently low so that their possible elution does not affect the measured properties.
Hvizdoš et. al., Local Mechanical Properties of Various Bone Cements, Key Engineering Materials, 592-593 (2014) 382-385.

Thermal properties of Si mechanically alloyed with FeSi2 and CrSi2 were characterized for the samples with different volume fraction of the disilicides.
Such an unusual combination of properties may result in formation of very efficient thermoelectric materials.
Mechanical alloying followed by spark plasma sintering has been widely used for preparation of Si-Ge alloys [11].
Most likely there are several factors that affect thermal transport in these materials and which are at play at different sintering conditions.
Introducing FeSi2 and CrSi2 into silicon matrix may have different effect on thermal properties which is linked to different sintering condition.

Among high performance polymers, polyetherimide (PEI), with its high thermal and physico-mechanical properties, occupies a worthy place.
The main physico-mechanical properties of composites based on PEI with CF are given in table 2.
In general, composites with a fiber length of 3 mm show slightly higher properties; however, in the case of CF, their high content can lead to a certain degree of defectiveness of samples, which is reflected in mechanical properties.
For temperature loss of 2 % of mass, there is no clear correlation, which is apparently due to the fact that various factors can affect the onset of destruction — the presence of impurities, the heterogeneity of the composite, etc.
CF composites exhibit significantly higher mechanical properties.

The effect of Mg content on the fluidity of the melt as an influencing factor affecting both the process yield and wettability of SiC with molten metal was investigated.
It must be noted that for achieving such improved properties, it is necessary to obtain a uniform distribution of nanoparticles in the matrix alloy.
However, the key factor for obtaining improved mechanical properties for these composites is the proper embedding of nano-sized SiC particles within the Al powders.
The fluidity of these alloys as an influencing factor for powder production process in IPM technique was quantified by vacuum suction method.
As a result of rigorous turbulence created by mechanical agitation, these small droplets may solidify before they wet SiC nanoparticles.

It is found that there are four factors which influence the surface roughness: grits size of flap wheel, polishing time, velocity, and force.
Besides the impressive properties of stainless steel, the smoothed surface of part manufactured is an expected feature for part assembling and aesthetic requirements.
They can be concluded that the rotational speed, applied pressure, hardness of abrasive particles and cooling method can affect the surface roughness obtained.
It has been found that not only the grit size of flap wheel, the flap wheel work-piece contact force and machining velocity were also the significant factors to be well controlled for smoothing the work-piece surface.
Luo: Optimization of design of experiment for chemical mechanical polishing of a 12-inch wafer.

It is well known that many mechanical and physical properties of structural ceramic materials depend critically on composition, manufacturing process, microstructure, density and environmental temperature mainly.
Therefore, obviously the effects of porosity, pore shape factor, grain size, elastic modulus and external environmental factors are extremely important for the fracture strength of porous ceramic materials.
This situation not only places a limit on fully exploiting the potential properties of the relevant materials, but also affects correct analyses of the related structural characteristics and damage during extreme thermo-mechanical coupling conditions.
If the magnitudes of increases of values of those factors are the same as that of decreases, the effects of decreases on strength are more significant than that of increases.
And the effects are more significant with the bigger magnitudes of decreases and with the smaller magnitudes of increases of values of those factors.

The mechanical properties of two kinds of materials are also measured.
In 1971, Professor Kiefeere of Vienna Industrial University in Austrian firstly reported that the mechanical properties of TiC-based cermet would be affected by adding TiN compound and pointed out that Ti(C,N)-based cermet would have a great outlook as a cutter [2].
Therefore, this is key to have a correct understanding of its mechanical properties for its reasonable application.
Its mechanical properties for the two kinds of materials are also measured.
The mechanical property's measurements of developed cutter show that nano-modified cermet has better mechanical properties than non-modified cermet.