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Few studies using low concentration of raw materials are available.
EXPERIMENTAL 2.1 Raw Materials Bischofite was from the salt lake of QingHai ChaerHan.
As the concentration of raw materials changed, the average particle size D(50) presented parabolic curve.
Journal of Salt Lake Research, 2012, 18(02): 37-38
Advanced Materials, 1998, 17(10): 1479-1481

Experimental Material.
Table 6 Compressive strength comparison of different cementing materials net paste Cementing material compressive strength (MPa) R1 R3 R7 SL 0.98 10.65 17.10 SGY 1.90 11.28 16.94 OPC 1.09 9.85 15.89 Table 7 Compressive strength comparison of mortar with SL, SLG and OPC Cementing material compressive strength (MPa) R1 R3 R7 SL 0.22 1.30 3.13 SLG 0.34 1.55 5.32 OPC 0.24 0.76 1.53 Compressive strength of paste with SL is higher than OPC except R1, and compressive strength of paste with SLG is all higher than OPC showed in table 6.
Acknowledgements This work was financially supported by National Natural Sciences Foundation of China (50974082) together with research project of  “SUST Spring Bud” (2008AZZ076) of China.
References [1] He Zhexiang, Xie Kaiwei and Zhou Aimin: The Chinese Journal of Nonferrous Metals, 12(1998), p.739-744
[10]Wang Fusheng, Wang Xiaoli and Wang Guangming: Journal of University of Jinan (Science and Technology), 13(1) , (1999),p.6-8.

Wang et al., Materials, technological status, and fundamentals of PEM fuel cells–a review, Materials today. 32 (2020) 178-203
Selvaraj, Cyclophosphazene based conductive polymer-carbon nanotube composite as novel supporting material for methanol fuel cell applications, Journal of colloid and interface science. 472 (2016) 116-125
Shimpalee et al., Investigation of bipolar plate materials for proton exchange membrane fuel cells, International journal of hydrogen energy. 41 (2016) 13688-13696
Faddeev et al., Bio-Based Conductive Polymer Composite Materials for Fuel Cells Bipolar Plates, Key Engineering Materials. 869 (2020) 591-596
Petrova, Mechanical Properties of Polymer Composites Based On Modified Polytetrafluoroethylene, IOP Conference Series: Materials Science and Engineering. – IOP Publishing. 1079 (2021) 32-48

Depend on nonlinear science to set up the nonlinear dynamical equation that is fit for its characteristics.
(4) The method of this paper also suits for other discontinuous materials. 5.
Journal of Yangtze River Scientific Research Institute, 1994.pp.49-66
Science Press, 2000
Journal of Zhuzhou Institute of Technology,2006,pp.83-86

The beam is composed of brittle material element and ductile material element (for example: concrete and steel).
References [1] J.G.N, Z.B.Y: Journal of China Civil Engineering.
[2] M.X, Y.M.X: Journal of Anhui Technical College of Water Resources and Hydraulic Electric.
[3] C.K.F, C.C.K: Journal of Yantai University (Natural Science and Engineering Edition).
Yan: Key Engineering Materials Vol. 274-276(2004), p.1113 [5] S.P.M, X.G.J, J.S.J: Journal of China Agricultural University.

Therefore, in this paper, the effect of materials’ wettability on liquid impaction onto the rough solid surface will be investigated.
[4] Shinoda, K., et al.: Journal of thermal spray technology.
[5] Shinoda, K., et al.: Journal of thermal spray technology.
Moreau: Journal of Materials Science.
Xuan: Science in China Series E: Technological Sciences.

On the other hand there are several properties which are not easily reproducible in the most of the materials characterization, and particularly in the quantification of the material.
In this paper a concept of traceability is introduced for the measurements of materials properties.
Particularly important is the development of reference materials, which are described below.
By the agreement of ISO/REMCO, they are stated as folloows: • Reference Materials(RMs): A material or susbstance, one or more properties of which are sufficiently well established to be used for calibration of an apparatus, the assessment of a measurement method, or for assigning values to materials.
Nava, Strategy for Developing Reference Materials,( Proc.

When, two different materials work together gives the composite unique properties.
The mechanical properties of e-glass fiber/epoxy resin with nano materials are given in Table 1.
§ The fabricated composite material cart spring system proved the better performance than the other conventional type steel materials
Nallusamy and Saurabh Kumar, (2016), “Efficiency and lifespan enhancement of product with dissimilar material using different techniques”, Indian Journal of Science and Technology, Vol. 9(16), pp. 1-5 [35] S.
Journal of Mech. and Material Sciences Research, Vol. 4(1), pp. 01-08 [39] S.

Study on Environmental Materials with Aspergillus Niger as Adsorbent for Sequestering Pb(II) from Aqueous Solution WeiNaXue 1, a, YanBoPeng 2, b ( 1.Depanrment of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan 250101,China; 2.ShanDong Academy of Environmental Science Jinan 250013,China) aemail:xueweina03@163.com, bemail:helker1981@163.com Key words: Biosorption; Industrial waste Mycelium of Aspergillus niger ; Lead ions; eco-friendly environmental materials Abstract: Mining, smelting, processing, and industrial production emissions of waste heavy metal pollution is serious, and the enrichment of heavy metals, it is difficult to be degraded in the natural environment.
Materials and Methods 2.1.
The functional groups were incorporated to increase the adsorption capacity, to change the pH range for heavy metal adsorption, and to change the adsorption selectivity for the target metal[7] Based on wastes recycling and circular economy, A.niger and other industrial fermentation waste mycelium can be used as a new economic and eco-friendly environmental materials of metal adsorption.
Chemical Engineering Journal,85(2002): 351–355
Journal of Environmental Radioactivity 101(2010):504-508

Certain natural materials were used as supplementary cementitious materials (SCM) since ancient times due to their pozzolanic properties.
Supplementary cementitious materials.
Construction and Building Materials Vol. 25, 1789-1795
Journal of Thermal Envelope and Building Science 2004, Vol. 27, pp 307-325
Journal of Thermal Envelope and Building Science. 1999, Vol. 22, pp 349-355