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Foam ability and stability of foaming agent are key factors for foam concrete properties.
Foaming agent is a key factor in determining foam concrete properties including compressive strength, heat insulation, sound insulation and cracking.
Foam ability and stability of foaming agent are affected by many factors [3].Using HPMC as foam stabilizer, under the basic of preparing 600kg/m3 foam concrete, LAS, SDS and magnesite foaming agent foam ability and stability are studied.
Study on foaming agent properties Study on LAS foam ability and stability LAS is straight chain structure.
Structure and properties of aerated concrete: A review [J].

Research on Method of Equivalent Heat Transfer Straight Pipe with Material Properties in the Cement Clinker Unit Body Yan Wen 1,a, Hai-long Yue 2,b, Bin Liu 3,c (1.Institute of Mechanical Engineering Yanshan University Qinhuangdao Heibei Province China 2.Institute of Mechanical Engineering Yanshan University Qinhuangdao Heibei Province China 3.Institute of Electrical Engineering Yanshan University Qinhuangdao Heibei Province China) Keywords: material properties, heat transfer, straight pipe, porous medium, seepage, Abstract: In order to accurately master the material heat transfer properties of the cement clinker, the theory of fluid flowing and heat transfer in straight pipe was applied to the cement clinker accumulation body porous medium in this paper.
This paper obtained a simple evaluation method of the material heat transfer properties of cement clinker which has more engineering application value.
Introduction The cooling process of the cement clinker directly affects the quality of cement and utilization ratio of the energy.
Research of the heat transfer mechanism and the material heat transfer properties of cement clinker can provide a better guidance for the grate cooler to achieve optimum heat transfer.
This calculation and evaluation method of heat transfer in porous medium and the material properties have more engineering application value. 2.

Therefore, this research aimed to produce BC from SC by Gluconacetobacter xylinus under static condition and use it to improve mechanical properties of natural rubber.
NR has outstanding properties including high elasticity, film forming capacity and hydrophobicity [9].
However, some properties of NR including low mechanical strength and low abrasion resistance, limit product applications.
Therefore, this research aimed to investigate potential of BC production from liquid byproduct of sweet corn canning process by G. xylinus and used it to reinforce natural rubber to improve mechanical properties.
Mechanical Properties of Rubber.

In general, the dispersed phases, particles or fibres, are stiffer and stronger than the matrix, affecting the mechanical properties of the mixture.
The Halpin-Tsai-Nielsen model highlights, as main factors, the particle volume fraction, the Ep/Em ratio and the maximum particle volume fraction, Vpm.
Although this latter model considers all the factors that contribute to the real composite mechanical behaviour, it also includes a term relative to the maximum particle volume fraction (Vpm) which is not well defined.
These parameters interfere in the matrixparticle interface properties, namely on the respective bond strength and stiffness and, certainly, on the composite mechanical behaviour.
Landel: Mechanical Properties of Polymers and Composites (Marcel Dekker, Inc., NY 1994)

The mechanical properties of PMC are related to the performances and contents of reinforcing fibers and matrix resins, and are largely determined by the integration degree between the interfaces of the fiberglass and the resin.
The interfacial invasiveness and cohesion are some key factors to affect the mechanical properties of phenolic molding compounds [1-3].
Modified fiberglass instead of wood flour can highly enhance the PMC performances with better properties of heat resistance, mechanical strength and dimensional stability, and the product can replace metals used in automotive, mechanical and electrical manufacturing applications [4-7].
Property Standard Volume resistivity GB / T 15662-1995 Surface resistivity GB / T 22042-2008 Impact strength GB / T 18029.8-2008 Electric strength GB / T 1408 Bending strength GB / T 11387-2008 Weight GB / T 1033.1-2008 Fluidity GB / T21060-2007 Heat deformation GB / T 1634.2-2004 Results and discussion 3.1 Surface free energy Fiberglass surface free energy is the major factor to affect its properties such as invasiveness, cohesion and bonding.
The measured properties of these PMC samples are shown in Table 5.

In their purest form, polymers mostly don’t have the desired properties, which is why special additives (fillers, plasticizers, dyes, stabilizers, etc.) must be added to obtain the desired functional properties.
The alignment of reinforcements gives rise to the anisotropy of properties.
Gabibullayev, How Some Factors Affect the Anisotropy of Elastomeric Fiber Fillers, Proceedings of the IV Russian Conference on Materials for the Rubber Industry, Kauchuk i Rezina. 1 (1988) 187-189
Dubinker, How fiber reinforcements affect the anisotropy of mechanical properties of rubbers used in V belts, Kauchuk i Rezina. 7 (1973) 28-30
Gabibullayev, How Some Factors Affect the Anisotropy of Elastomeric Fiber Compositions, Kauchuk i Rezina. 1 (1998) 2-4

Influence factors of dispersant effectiveness Many experimental studies have been conducted on the effectiveness of chemical dispersant in the last fifty years, indicating that a number of chemical and environmental factors can influence dispersant performance, which include the properties of the oil, mixing energy, compositions of dispersant, amount and method of dispersant applied, temperature, and salinity.
The oil properties and mixing energy are the major influence factors of dispersant effectiveness.
The influence of oil properties on the effectiveness of dispersant mainly reflects on the viscosity and the composition of the oil.
The environmental factors such as temperature and salinity of the seawater are significant to the dispersion of the spilled oil.
Although the environment factors can be accurately reflected, some other factors such as test method, experiment cost and potential environment pollution limit the field trial.

The results showed that the quenching temperature is more sensitive than the tempering temperature on the mechanical properties.
However, few researchers have been draw attention on the effect of production technology on the microstructure and properties of PC steel bars.
In this paper, the effect of heat-treatment on the microstructure and properties of the PC steel bars were studied, including the temperature of quenching and temper.
Furthermore, the factors affact the yield- strength ratio have been derived.
The tensile specimens heat-treated are machined for mechanical property tests.

Effect distribution of residual stresses on three different materials physical properties of hardness are analyzed by using the finite element model during the process of high speed cutting.
The results show that metal material hardness is the key factors to residual stress.
Tensile residual stresses on the surface of components dangerously affect the life of them in operating conditions [4-6].
Consequently the plastic deformation will be affected.
In this paper, a finite element model was built to analyzed effect of material physical properties on magnitude and distribution of residual stresses.

However, some disadvantage factors in SCC, such as large dosages of cementitious materials and additives, also cause the SCC have large amount of shrinkage and easy to crack [6].
Therefore, under both positive and negative factors, the performance of SCC durability also deserves further research.
There are many works shown that SCC has excellent mechanical properties and utilized in many projects.
The Mixture Design and Mechanical Properties of SCC The mixture designs of the various SCC mixtures are shown in table 1, and the mechanical properties are shown in table 2.
Ozawa, in: Mixture properties of self-compacting highperformance concrete, Proc. of 3rd CANMET/ACI Inter, Conf. on Design and Materials and Recent Advances in Concrete Technology, ACI SP 172, Kuala Lumpur, Malaysia, American Concrete Institute,Farmington Hills, MI, USA, PP. 623– 637.(1997) [4] P.L.Domone, in:A review of the hardened mechanical properties of self-compacting concrete”.