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Consequently, it improved physical and mechanical properties of the binderless particleboard produced.
Effect of pretreatment condition on physical and mechanical properties of panels.
The improved MOR, IB and WA values could be related to the above mentioned factors.
Steam explosion pretreatment conditions have a significant influence on the physical and mechanical properties of the binderless panels.
Gothandapani,:Mechanical properties of coir particle board.

The aspect ratio is one of the important factors that impact the corrugated box compression strength.
The compression strength of boxes is affected by many factors, such as the quality of corrugated cardboard, the type, height, perimeter and aspect ratio of corrugated box, the size, shape and location of vent/hand hole, etc.
Many scholars had taken varies technical means to study these factors’ effect on the compression strength.
And then compare and analysis the testing and calculation results [7]. 3 Experiment 3.1 Testing of mechanical properties of base paper and corrugated board The ring crush strength of outer liner and inner liner is 9.67N/cm, the middle liner is 4.47N/cm, and the medium is 3.29N/cm.
[4] LIU Bo, Finite Element Analysis of Mechanical Properties of Corrugated Paperboard.

Experimental study on the impact of admixture for concrete heat of hydration and early-age contractile properties SUN Jian-cheng1,a, WANG Bo-jun2,b, ZHAO wen-zhong3,c 1College of Civil Engineering , Hebei University of Technology,Tianjin 300401, China 2College of Civil Engineering , Hebei University of Technology, Tianjin 300401, China 3 Highway Administration in Hebei Province,Shijiazhuang 050000,China aSunjancheng2000@126.com, b465391032@qq.com.
Key word: early-age Shrinkage, hydration heat, mineral admixtures, water reducer, contractile property Abstract : During the technology development of modem concrete, concrete structure crack (especially early-age crack) becomes more and more serious and has been one of main research directions of civil engineering.
The best program are obtained that double mix with 20% fly ash and 1.5% water reducing agent .Design mortar’s early anti-crack experiment, and study crack-resistance and other mechanical properties based on different ages & different mix proportion.
Experiment methods Mixing proportion optimization test for reducing the hydration heat In order to study the factors that affect the cement hydration heat, we have developed the following experimental scheme to analyze
Experiment methods Experiment mainly explore the composition of the fly ash, slag, water reducer, conservation of different raw materials affect on such as concrete early-age work performance, early-age crack resistance.

In mould design, the gate location, runner/gate system and cooling system design are the major factors affecting not only the warpage and part quality but also the injection moulding cycle time.
The most important reason for this is because of the properties of the plastic material.
Some of these properties are lightness, resistance to corrosion, ease to give shape.
Plastic materials physical and chemical properties can be changed as desired.
The warpage is predicted from the temperature difference between the upper and lower surfaces, the temperature distribution, flow-induced shear stress, shrinkage, and anisotropic mechanical properties caused by fiber orientation.

Thus, the properties of concrete with plastic wastes are different, as they are affected by the previous treatment of those wastes, and the bonding strength between cement paste and plastic aggregates is also affected by treatment [5].
The properties of the concrete produced are also affected by the properties of that waste, which are the shape, surface roughness, and low fire resistance [5].
Adesina, Overview of the mechanical properties of concrete incorporating waste from the concrete industry as aggregate, (2018)
Nikbin,On the mechanical properties of concrete containing waste PET particles, Construction and Building Materials 47 (2013) 1302-1308
Prince, Physical and mechanical properties of mortars containing PET and PC waste aggregates, Waste management 30.11 (2010) 2312-2320

The Key Influence Factors of External Prestressing Structure For prestressing structure there are many factors to affect the mechanical properties，the most important factor focuses on the prestressing action, for example: prestressing transmission, prestressing steering and anchoring junction are all critical and so on.
Therefore, to carry on the accurate assurance about primary influence factors of the external prestressing is the key to the smooth control in the prestressing construction.
The event of some unpredictable factors will lead to failure of reinforcement works; Secondly, the realization of the transfer of external prestressing.
The function position of prestressing transmission is obvious influence, which regards the mechanical properties of the entire structure.
It is an important factor to take the coordination structure in performance force, which can guarantee the security feature of entire construction process.

Introduction The research on the concrete-filled rectangular steel tube at home and abroad mainly focus on the mechanical properties and seismic performance of component.The studies of frames structure made of rectangular concrete filled steel tube columns and beams has not been reported [1] [2] [3].
In order to research the mechanical properties of concrete-filled rectangular tubular frames, In this paper, a three dimensional nonlinear finite element analysis model of concrete filled rectangular steel tubular frame was established.
The bearing capacity, ductility, energy dissipation and other mechanical properties of concrete-filled rectangular tubular frames can satisfy the requirements of seismic ductility of frame, and the frame under cyclic loading can form the beam hinge failure mechanism.
These factors may lead to that the experiment bearing capacity include a part of the resistance of the device, so as to obtain the experiment value is higher than the theoretical bearing capacity.
In order to study the effect of axial compression ratio for the concrete filled steel tubular frame mechanical properties and failure mechanism, different axial force role the theoretical model of frame.

Influencing Factors and Control Method of the Stripping Time of Lining The decision whether the template can be demolished or not need to be made in two steps.
The factors which influence on judging are as follows: the fallen, sinking, freeze-thaw damage, mechanical damage, water loss, discoloration, durability of change and so on.
(3)The stripping time should also be determined by factors that temperature in the hole influences growth of concrete intensity and cross-section form, span and exterior load of tunnel, and so on.
At the same time, the factors which affect steel trolley time such as overfilling in the top of tunnel, temperature stress etc. are analyzed by synthesis to ensure the concrete quality and construction safety, considering reserve a certain security reserving, taking insurance coefficient K is 1.25, so the stripping strength: σstrip = K σ max = 1.25 x 0.034 = 0.0425 MPa.[4] Determination of the Stripping Time.
According to the calculation above and taking all factors into account, the stripping time of side and roof arch steel trolley is determined as 12h.

In addition, the cutting speed was significantly affecting the tool life.
There are many factors influencing the tool life when machining cast iron.
Due to the various factors that affecting the tool life and machined surface in machining cast iron, this study was carried out to investigate the effect of various dry cutting condition environment on the tool life and surface finish when turning ductile cast iron FCD700 using coated carbide tool.
Table 2 shows the mechanical properties of the coated carbide insert AC700G.
The cutting speed is significantly affecting the tool life.

Considering the relationship of material properties and temperature, a 3-D thermal-mechanical finite element analysis model for laser micro-bending of stainless steel foil is developed based on the software MSC.Marc, and the laser micro-bending process of 0.1mm thick stainless steel foil is implemented.
(2) Design variables: P, D, V There are many factors that influence the forming process, such as energy factors (laser power, laser scanning velocity, laser beam diameter, absorption coefficient, etc.), geometrical factors (sheet thickness, sheet width), and material property parameters (thermal, physical and mechanical property parameters).
Generally, geometrical factors and material property parameters are constant for a definite laser micro-bending process.
The relationships between material properties with temperature are considered.
In this paper the material of AISI 304 stainless steel is used and the materials properties depend on temperature are considered [8].