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Based on the research and indoor experiments, this paper investigates the mixing and curing techniques, pavement performance, and influencing factors of emulsified asphalt cement concrete.
Based on the related research and indoor experiment, this paper studies the manufacturing process, pavement properties and influencing factors of emulsified asphalt cement concrete.
It also investigates the mixing and curing techniques of emulsified asphalt cement concrete and its mechanical properties.
Different sequence of adding raw material results different mechanical properties of mixture.
Figure 3 illustrates the experiment result of asphalt cement ratio to reflect the compression resistance and tensile properties of mixture.

The Swelling Properties of Nitrile Rubber with Different Acrylonitrile Contents in Cyclohexane Medium Research Huiming Wang1, a, Xiaoren Lv1, b and Shijie Wang1, c 1School of Mechanic Engineering, Shenyang University of Technology, Shenyang, China, 110870 awanghm118@126.com, bxrlvsut@126.com, c wang_shijie@263.net Keywords: Submersible screw pump; Nitrile rubber; Acrylonitrile content; Swelling properties; Mechanical properties.
By the research of swelling and mechanical properties of nitrile rubber with different acrylonitrile contents in cyclohexane medium, the influences of physical and mechanical properties with diffrent acrylonitrile contents is analyzed.
With different acrylonitrile contents and swilling times the nitrile rubber shows different mechanical properties.
（a） swelled NBR （b）dried NBR Fig.2 The Shore Hardness Change Rate Of Swelled And Dried Nbr In Different Soak Periods Mechanical Properties Tensile properties is one of the most important measure to the physical properties of rubber.
There are many factors can influence the rate of the permanent deformation such as rubber net structure between the molecules; molecular force; displacement between the molecules and so on.

Factors affecting the compressive strength of class C fly ash geopolymer XueYing Li1,a, EnZu Zheng1, b, ChunLong Ma1 1 School of Civil Engineering, Harbin Institute of Technology, Harbin, China a xyli@illinois.edu, bhitzez@163.com Keywords: Geopolymer; Class C fly ash; Compressive strength Abstract.
Recently, geopolymer materials have attracted a lot of attention for various applications due to their excellent mechanical properties, acid resistance, fire resistance and stabilization of heavy metals wastes, etc [1-2].
Addition of calcium compounds as a fly ash substitute improved mechanical properties for the ambient temperature cured samples while decreasing properties for the 70°C cured samples [4].
The fact that how will W/F and curing regime affect the CCFG remains unclear.
After mechanical activation in a ball mill with steel ball for 1h, which led to a reduction of particle size and change in particle shape, its specific surface area was 490 m2/kg.

However, its welded heat-affected zone, HAZ, substantially affecting the strength of a welded joint, will be easily softened after welding.
Introduction Ultra-fine grained steel (UFGS) with an average grain size of less than 1µm has been developed [1] and is expected to demonstrate superior properties in strength, low temperature toughness, corrosion resistance, and fatigue strength [2].
Additionally, another criterion of the softening mechanism was evaluated through the mechanical properties, based on S-S curves shown in Fig.4 (b), prepared from both positions.
A possible explanation of this outcome was that the initial plate temperature was a primary factor in restraining temperature rising during welding.
Fig.8 Effect of initial plate temperature on the HAZ size on the HAZ size. 3.3 Mechanical Properties Fig.9 illustrates the effect of liquid nitrogen cooling on Vickers hardness distribution around the weld bead.

The formed milling cutters are usually used in the processing of turnout, and the milling force is an active factor in the milling process which affects the functions of the machine tool and the enactment of process parameters, then the processing quality of turnouts is affected.
The material for turnout is high-manganese steel ZGMn13, which is difficult to be machined and has the properties of high hardness and strength, the chemical compositions and physical properties are shown in Table 1 and Table 2.
workpiece tool Fig.1 High-speed railway turnout Fig.2 Schematic diagram of curved switch rail milling Table 1 The chemical composition of high-manganese steel High-Manganes Steel [] [] [] [] [] 0.9～1.3 11～14 0.3～0.8 0.05 0.07 Table 2 The physical properties of high-manganese steel Steel No. [] [] [] [] ZGMn13 0.9～1.3 11～14 0.3～0.8 0.05 0.07 According to the material properties of the turnout, the features of the workpiece, and processing efficiency requirements, formed milling cutters (Fig.3) are usually used in the milling processing (Fig.2).
In addition, according to the dynamic mechanical properties of materials, the relation between true shear stress and strain is
Through analyzing, it is found that several factors lead to the error.

Analysis of the Granulometric Composition of the Feedstock Influence on Mechanical Properties of Iron Ore Pellets Vladimir I.
The mechanical properties of the pellets depend on the firing temperature, holding time at this temperature, heating and cooling rates (Fig. 1).
The change in these indicators is associated with the chemical and mineralogical composition of the pellets and determines their mechanical properties [16, 17].
The cooling mode of the pellets is a very important factor affecting thepellets properties, the design and performance of the equipment used for firing.
Figure 10 shows that the optimal mechanical properties of the pellets are obtained at 86% content of the fraction <0.04 mm.

Keywords: Silicon nitride, Pore morphology, Mechanical properties, Permeability.
The mechanical properties were investigated.
Cordierite was done for this purpose due to the low thermal expansion coefficient resulting in good thermal shock resistance, but its mechanical properties are not well.
Silicon carbide is also a candidate due to the high mechanical properties at high temperatures, however, the thermal shock resistance was poor.
As the pore size is the key factor for affecting the flexural strength, increasing the porosity by the increasing whisker content only increase the amount of the fracture origin, but not its size.

There are many factors which affect the anchoring effect.
The greater the shear force is, the worse the mechanical properties of the rock and soil and the greater the deformation of creep will be.
Analysis of factors affected on load losses of high capacity and long rock anchors.
ANALYSIS OF THE FACTORS AFFECTING PRESTRESS-LOSING IN PRESTRESSED CABLE ANCHOR. 　
[3] Hui Yang, Chen Chen, ANALYSIS OF THE FACTORS AFFECTING PRESTRESS IN PRESTRESSED CABLE ANCHOR.

Scale and Surface Machining Quality Effect on Fatigue Properties for China Railway Grade B Cast Steel Wheel Y.X.
Random effects on fatigue lives and effect factors are constructed for measuring effects.
And it is a basic work to assess the scale and surface machining effect on the fatigue properties of the wheels.
Major flaw affecting randomly material condense of the wheel is from the casting shrinkage porosities.
Random affected sectional area related fatigue lives and the effect factors are constructed for measuring effects.

The results reveal that friction pressure and friction time are the main factors of this welding process.
The properties and mechanical properties of welded samples were investigated to consider the effect of the condition process.
Because of the absence of the dendritic structure, this welding method produces better mechanical properties than other fusion welding methods.
This is the area that causes poor mechanical properties.
Mechanical Properties and Microstructure, in welded joints of Low and Medium Carbon Steels, Applying Rotary Friction.