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Evaluation is carried on GB/T50081-2002 test method standards of ordinary concrete mechanical properties.
Factors and levels.
Factors and levels are shown in Table 9.
Therefore, the best combination of mechanical properties of gangue concrete is A3B3C2.
From the analysis of differential, the greatest impact of mechanical properties of gangue concrete about the above factors is fly ash, the followed is slag, and the last is gangue.

In project application, its property under load and the design method and durability precautions.
The technology shows better comprehensive economic benefits, by the national ministry of construction in one of the important application of scientific and technological achievements. 1 Prestressed concrete structure design features 1.1 The bending ultimate strength calculation 1.1.1 Stress calculation of unbonded prestressed reinforcement Unbonded prestressed concrete structure and the corresponding bonded structure are different, the mechanical behavior in unbonded prestressed structures, the unbonded prestressed tendon strain growth, is equal to the length along the prestressed concrete around the average of the strain change, the growth of its stress is relatively slow, generally reach its ultimate strength, in determining the bending strength of unbonded prestressed structures.
The factors that affect the ultimate stress mainly includes: the effective prestress of unbonded tendons, the size of the unbonded prestressed steel and ordinary steel reinforcement ratio, flexural member of cross ratio, loading mode, support conditions, unbonded tendons and friction between the pipeline and prestress concrete is the form and material properties, degree of constrained.
Overall, compared with cohesive force reinforced concrete structure, the medium of unbonded prestressed concrete structure is poorer, local failure will affect the whole, form is more intense, therefore, should be paid sufficient attention.

The most significant material parameters affecting amax are the yield stress, the strain at break and their interaction (with c.a. 26-28%).
Both these values are determined by similar setting of the material properties, although with different significance.
Fig. 6 - Percentage of contribution of the material properties for HIC(d) and amax.
Varying the material properties the maximum deceleration and HIC(d) values can be adjusted and optimised.
The minimum values of HIC(d) and amax are obtained for the maximal setting of the material properties.

In paper, the design of micro gear hob and the micro hobbing technology is the key factor to the manufacture of micro gear and is presented detailed.
Introduction With the trend of product miniaturization, Micro-Electro-Mechanical Systems(MEMS) is applied in many fields and studied by many people.
In contrast, fine grain carbide is better than high speed steel in the mechanical properties.
But the length of the cutting should not be so long that will increase error of the accumulated pitch and hob helix, resulting in manufacturing difficulties, and reduce the precision level of gear hobs, thus affecting the accuracy of the micro gear.
So the normal tooth profile can be determined by the gear and the parameter of the axial direction is affected by the helix angle.

Evaluation of the mechanical properties of the injection specimens group was utilized by universal tensile strength tester.
So the injection molding method by thermoplastic resin composite material has a factor to decrease the mechanical properties [4].
We have also studied about the mechanical properties of the parent and weld specimens and fiber orientation distribution quantitatively along the length of the short carbon fibers dispersed within PC matrix.
Through injection molding, the entire process of the short carbon fibers is dispersed in the form of small particles, and this affects the mechanical properties. 2) In the mechanical performance of short carbon fiber reinforced composites material PC, short carbon fiber of 5mm, 7mm length has more advantage than 1mm, 3mm length. 3) Extrusion process of the carbon fibers in the molten resin has cut fibers very particle type by the shear force and the inter-fiber collision phenomenon.
This is an important factor in the improvement of mechanical properties in the part of anisotropy fusion in the flow front in cavity of mold.

Heat and Temperatures in Machining: Effects and Significance Rajesh Patil1,a,Vilas Kalamkar2,b and Hari Vasudevan3,c 1Dept. of Mechanical Engineering, Mukesh Patel School of Engineering,NMIMS University, Shirpur, Maharashtra- 425405 ,India 2Mechanical Engineering Department, Visvesvaraya National Institute of Technology, Nagpur,Maharashtra-440010,India 3D.J.
Understanding of Tool-workpiece interface is significant as it affects the heat moving to workpiece, tool, chip as well as tool flank wear and major machined surface characteristics.
It is important to know that the thermal conductivity and adhesion properties of cutting tool material has greatest influence on contact conditions at tool-chip interface compare to elastic constants of tool material[3].Thermal conductivity affects mean contact temperature and distribution of temperature over the interface.
Less attention is given to the tool-workpiece interface area as very few studies are available, indicating the ignorance of this vital area[3].Even for small values of flank wear most of the heat generated at tool-workpiece interface is transferred into the workpiece when flank wear becomes large heat from this source transferred to cutting tool and chip[8].This interface is significant for newer process like finish hard turning in which the presence of flank wear-land enhances cutting forces and increase in heat generation affecting part surface integrity hence objectives of development of this process[9].White layer formation an undesirable product in finish hard turning the prime factor responsible for this is tool wear, pointing the significance of understanding of heat and temperatures in the tool-workpiece interface[9].
Mechanical Engg.

Structure and Dissolution Properties of Phosphate Glasses for Glass Fertilizer Y.
For usage of glass fertilizer, physical and dissolution properties were investigated according to variation of the SiO2 and K2O contents in silicate glasses.
The change of the K2O/P2O5 ratio was a main factor to control chemical durability and physical properties such as density and hardness.
In the abnormal glass properties such as fast dissolution in aqueous solution, it was presented that the glass can be a good candidate for agriculture fertilizer.
For the applications, dissolution properties of phosphate glass can be controlled by composition design to have slow release rate to aqueous solution and the controlled dissolution rate is the most distinguished property with conventional fertilizer.

Many factors [2,3], such as cement, mineral admixture, W/C ratio, construction or curing conditions, etc., will affect the bleeding of concrete.
The major factors of influencing the concrete bleeding are W/C ratio, the amount of cementitious materials and the sand ratio.
The W/C ratios can greatly affect the concrete chalking.
The moulding methods were hand mixing and mechanical vibration, respectively.
However, the specimen K3 displays seriously chalking owing to the mechanical vibration during the moulding process, indicating the mechanical vibration will accelerate the concrete chalking.

Effect of SiO2 Solid Loading and Sintering Temperatures on the Physical Properties of SiO2-NiO Foam R.
These unique properties have attracted the attention of researchers worldwide [4,6,7].
The crystallinity level of the SiO2 powder was affected by a few factors such as burning temperature and elemental composition [18].Besides that, the silica glass phase tended to convert into the cristabolite phase with the expansion of the glassy phase which will weaken the connection of atoms in the glass network as the sintering temperature increases.
Raju, Processing and properties of macroporous silicon carbide ceramics: A review, J.
Ayub, Effects of PVA-PEG Binders System on Microstructure and Properties of Sintered Alumina, Appl.

A similar conclusion was drawn for creep properties [7].
To fulfil the secondary goal, how the increased δ phase formation affects the fatigue properties, the fatigue push-pull test at room temperature and at 700 °C was done.
Fatigue process is influenced by many factors, surface roughness, and stress amplitude, frequency of loading, microstructure and temperature as well.
Sarma, Effect of standard heat treatment on the microstructure and mechanical properties of hot isostatically pressed superalloy Inconel 718, Mater.
Almeida, The effect of the δ phase on the mechanical properties of an Inconel 718 superalloy, J.