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This paper describes the concept and connotation of green building materials, combing the domestic and international green building materials research status; analysis on direction and achievements of construction materials, like natural building materials, Cyclic regeneration of building materials, Low environmental load building materials, Environmental functional building materials and Renewable energy use composite material.
Table 1:Average Savings of Green Buildings Energy use carbon emissions water use solid wastes Decrease amount 30-50% 35% 40% 70% http://www.ashland.com/Ashland/Static/Documents/APM/Composites%20Bldg%20Mtrls%20for%20Green%20Building.pdf Green building materials include natural building materials, recycled building materials, low environmental load of building materials, building materials of the environmental function, multi-functional composite materials.
Composite materials refer to engineered or naturally-occurring materials made from two or more constituent materials with significantly different physical or chemical properties.
To ensure the sustainable development of building materials, the key is research and development and promote the use of green building materials.
Acknowledgements This work was financially supported by the Hebei Social Science Research Project (201202014) References [1] Wang Xinyou: Ecomaterials and Green Building Materials, Journal of Building Materials, 1998(08) [2] Chen Liuqin.

Especially in deep coal mine, weak sedimentary rocks are stored in the coal measure strata, and these materials exhibit relatively low shear strength and stiffness.
Then rock material dilates afterwards.
Science Press, Beijing (2002).
Chinese Journal of Rock Mechanics and Engineering, 4, 321 (1993).
Journal of Geotechnical Engineering, 109, 15 (1983)

There are several inventory materials that are being tested to be utilized as track ballast material.
Specification of Materials.
The gradation of TDM is impacted by the specific gravity of the materials used.
Yaacob, “Durability performance of concrete debris and bottom ash as an alternative track ballast material,” IOP Conference Series: Earth and Environmental Science, vol. 682, no. 1, p. 012053, 2021
Ganiron, “Recycling concrete debris from construction and demolition waste,” International Journal of Advanced Science and Technology, vol. 77, pp. 7–24, 2015

Research on Coal Mining Material Active Perception System based on IOT and Coal Resources Jingzhao Li 1,a, Huimei Deng 1,b 1 School of Computer Science and Engineering, Anhui University of Science and Technology, Huainan,China ajzhli@aust.edu.cn, bdenghuimei@sina.com Keywords: IOT, coal mining, material, active perception Abstract.
On this basis, coal mining material active perception system is designed.
This work is supported by National Nature Science Foundation under Grant (61170060),Anhui Provincial Natural Science Foundation (11040606M135), Anhui Provincial Natural Science Foundation of Universities Key Projects Project Approval (KJ2011A083).
THE 2ND International Conference on Information Engineering and Computer Science, 2010:1944-194 [2] Jingzhao Li Qian Liu.
Journal of Parallel and Distributed Computing, 2011,45(3): 460-470

Galyavetdinov, Design of packaging materials based on polylactide and wood filler, International Journal of Engineering and Technology (UAE). (2018) 1089-1091
Martin, Coextrusion of biodegradable starch-based materials.
Voronin, Analysis of physico-mechanical properties of composites based on polylactide and thermally modified wood fibers, Materials Science Forum. (2016) 202-206
Safin, Study of the destructive properties of biodegradable wood-filled composite material, Materials Science Forum.
Shaikhutdinova, Research of biodegradable wood completed composite materials based on polylactide, Journal of Physics: Conference Series.

Presents the results of studies of contemporary materials in the field of rheological state.
Sun, Fatigue performance and multiscale mechanisms of concrete toughened by polymers and waste rubbe, Advances in Materials Science and Engineering. 2014 (2014) Article number 684207
Yusoff, Physical and rheological properties of epoxidized natural rubber modified bitumens, Construction and Building Materials, 63 (2014) 242-248
Hasan, Use of epoxidized natural rubber as a toughening agent in plastics, Journal of Applied Polymer Science. 132 (29) (2015) Article number 42270
Bunin, Multifractal Parametrization of Structures in Material Science, Journ. of Advanced Materials. 1(3) (1994) 230-240

Coal Science and Technology, 2005, 33(1): 7-10 [2] Y.Z.Liu , L.H.
Journal of Xi’an University of Science and Technology, 2009, 29(4): 388-403 [9] H.
Journal of China Coal Society, 1998, 23(4): 417-421 [17] X.K.
Journal of China Coal Society, 2006, 31(5): 603-606 [18] B.Z.
Journal of Colloid and Interface Science, 2006, 304(2): 558-561 [19] I.B.C.

Influence of Package on Micro-accelerometer Sensitivity Ping Li 1, a, Shi-Qiao Gao1, Lei Jin1, Hai-Peng Liu 1, Yun-Bo Shi 2 1 State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China 2 Key Laboratory of Instrumentation Science & Dynamic Measurement, North University of China, Ministry of Education, Taiyuan 030051, Shanxi, China agstwliping@126.com Keywords: package, micro-accelerometer, sensitivity, die process, package materials Abstract.
Sensitivity of sensors packaged with different amount adhesive Effect of package shell materials on the sensitivity Currently, the common package shell materials for MEMS accelerometers are ceramic shell used by Draper laboratory and metal shell(mainly stainless steel) by ENDVCO 7270A series, PCB 3991A11 series and KISTLER8742A100 series respectively.
The maximum load P on the sensor is shown as formula (6), (6) Where is the propagation velocity; refers to structure parameters of package shell(R is radius of cylindrical materials, h being its height); is the density of package shell; E refers to elastic modulus of package shell materials.
Journal of Mechanical Strength, 26, 2004, 149-153
Chinese Journal of Scientific Instrument. 2008,7(29):1345-1349

Materials Sciences and Applications, 3(02), p.59
Journal of Thermoplastic Composite Materials, 23(5), pp.665-681
International Journal of Polymer Science, 2015
International Journal of Polymer Science, 2018.
Open Journal of Composite Materials, 5(01), p.5. 

Investigation of Promoting Professional Practical Ability of Undergraduate Students in Materials Majors Guoli Du 1, a, Xiaoxin Feng 2, b 1Education Department, Tangshan Normal University, Tangshan 063000, China 2College of Materials Science and Engineering, Hebei United University, Tangshan 063009, China aemail: tsdugl@163.com, bemail: fengxiaoxin@tsinghua.org.cn KeyWords: structure of practical ability, cultivation, instructional strategies, material major Abstract.
Introduction Cultivating the applied talents is the main objective for materials majors in local universities.
This paper will present some viewpoint of instructional strategies which promote the practical ability of undergraduates in materials majors.
The principle knowledge includes basic discipline theories and special knowledge which are learned in such courses as Materials Physics, Materials Chemistry, Materials Science Foundation, Cement Technology, etc.
(In Chinese) [3] Hongjun Xing and Qingmei Chen: Journal of Capital Normal University (Natural Science Edition) Vol.26 No.3 (2005), p.41.