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Soluble salts may cause deterioration of porous materials, such as rocks and masonry materials, which leads to its surface degradation and structural damage.
They are the most frequently selected materials.
Charola, Salts in the deterioration of porous materials: An overview, Journal of the American Institute for Conservation 39(3) (2000) pp. 327-343
Terheiden, Diffusive and convective salt transport in building materials depending on pore solution concentration and moisture content, Journal of Building Physics 31(3) (2008) pp. 199-211
Rörig-Dalgaard, Further developments of a poultice for electrochemical desalination of porous building materials: minimization of side effects, Materials and Structures (2014) Article in press

However, an excessive amount of MH affects the mechanical properties and processing performance of polymer materials [4, 5].
Surface modification is widely used to improve MH dispersion in polymer materials.
Experimental Materials.
MH was purchased from Jiangsu ATK Flame Retardant Materials Co., Ltd.
[12] Yuan Yuan, Xiaodong Chu, Gaoxiang Du, Guoyi Tang and Zhansong Yin: Journal of Functional Materials Vol. 41 (2010), p. 1186-1189

Sun: Journal of Applied Polymer Science Vol. 81 (2001), p. 3069-3082 [2] C.
Zhang: Journal of Applied Polymer Science Vol. 103 (2007), p. 812-818 [7] H.
Seib: Journal of Applied Polymer Science Vol.82 (2001), p. 1761-1767 [8] A.P.
In Annual Book of ASTM standard; American Society Testing and Materials: Plastic Test Standard [17] S.
Sun and P.Seib: Journal of Applied Polymer Science Vol 90 (2003), p. 3683-3689

Materials and methods Equipment.
Fig 2 Variety of materials during operation The effect of pH at 7.5, 7, 6.5 and 6 on autotrophic denitrification was researched when HRT was 6.83h during 13d to 42d.
Singh: Journal of Apply Physics, Vol. 71 (1991), p.1872 [2] L.W.
Ren: Journal of Environmental Science and Health, Part A Environmental Science, Vol. 40 (2005), p.1939 [6] J.
Cai: Journal of Hazardous Materials, Vol.147 (2007), p.249 [15] R.

The material parameters of each rock and joints are shown in Table 1 and Table 2.
Table 1 Physical mechanical parameters of coal and rock Materials Bulk modulus (GPa) Shear modulus (GPa) Cohesion (MPa) Internal friction angle (o) Density (Kg/m3) Tensile strength (MPa) Siltstone 1.1 0.6 3.5 28 2570 3.2 Coal 0.68 0.5 1.2 20 1800 0.9 Medium-sandstone 2.6 1.2 5.8 36 2600 4.9 Table 2 Mechanical parameters of each joint Materials Normal stiffness(GPa) Shear stiffness (GPa) Cohesion (KPa) Internal friction angle (o) Dilatancy angle (o) Tensile strength (MPa) Siltstone 3.5 2.0 10 8 0 0 Coal 2.0 1.5 5 3 0 0 Medium-sandstone 5.5 3.5 40 10 0 0 Evolution Simulation on Overburden Stress Arch in Coal Mining.
In situ investigations of failure zone of floor strata in mining close distance coal seams[J], International Journal of Rock Mechanics & Mining Sciences, 2010,(47):865-870
Journal of University of Science and Technology Beijing. 2001,23(6):492-494.
Journal of Liaoning Technical University (Natural Science). 2000,19(3):251-254.

Forming shapes mainly depend on the physical and mechanical properties of materials.
Soaking improves the grain structure of materials yields better formability [5, 6].
[4] D.Maisonnette, M.Suery, D.Nelias, P.Chaudet and T.Epicier, Effects of heat treatments on the microstructure and mechanical properties of a 6061 aluminium alloy, Materials Science and Engineering, A 528 (2011), pp.2718–2724
[9] D Li and Amit Gosh, Tensile Behaviour of Aluminium alloys at Warm forming temperatures, Materials Science and Engineering, (2002), pp.279 – 286
[10] Jun Liu and Ming-Jen Tan, Formability of AA5083 and AA6061 alloys for light weight applications, Journal of Materials Design, (2009), pp.S66 – S70.

These characteristics of cement based materials are severe drawbacks that not only affect the structural design, but also impress the long term durability of structure.
In order to overcome the previous shortcomings of cementitious materials, this article tried to add MWCNTs[[] Iijima S.
Sinclair, “Microtomography assessment of failure in acrylic bone cement”, Journal of Biomaterials, Elsevier Science, vol. 26, pp. 6460-6466, 2005. ]. 2.
Materials and methods 2.1.
Materials The MWCNTs were purchased from Shenzhen Nanotech Port Co., Ltd, having a length of 5-15 μm (purity > 95%, outer diameter 40-60 nm), the parameters[[]W.

Hamid, Dynamic Increase Factor of High Strength Concrete with Silica Fume at High Strain Rate Loading, Materials Science Forum, 857 (2016) 299‒304
Shi, Research on Dynamic Strength and Inertia Effect of Concrete Materials Based on Large-Diameter Split Hopkinson Pressure Bar Test, Materials, 15 (2022) 2995
Marzouk, Strain Rate Sensitivity of Fiber-Reinforced Cementitious Composites, ACI Materials Journal, 113(2) (2016) 143‒150
Ser.: Materials Science and Engineering, 1021 (2021) 012026
Romashko, Fundamentals of the General Theory of Resistance of Reinforced Concrete Elements and Structures to Power Influences, Materials Science Forum, 968 (2019) 534‒540

Advance in Earth Sciences, 1994, 9 (5): 13-19
International Journal of Rock Mechanics and Mining Science, 2004, 41(3):81-86
Key Engineering Materials，2006，306-308: 1 479–1 484
Suggested methods for determining tensile strength of rock materials [J].
International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 1978，15(3): 99-103.

For example, the adiabatic shear, which may produce serrated chip, usually occurs in high speed machining for a large number of materials.
In addition, most of the existing research aim to few kind of materials, such as Ti6Al4V.
Domenico: Journal of materials processing technology.
Luo: Journal of system simulation.
Hu: Metallurgical and Materials Transactions A, Vol.40 (2011) No.13, pp.3245-3257.