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Research of Mechanical Properties of Concretes as Cement-based Porous Materials Ling Yun Meng Department of Civil Engineering, Tong Ling University, Tong Ling, China 838033409@qq.com Keywords: concrete; porous cement-based material; mechanical property Abstract: The concrete as a porous cement-based material is widely used in practice.
Experiment Setup Raw Materials and The Composition of The Mix.
[2] H Sadouki and J G M van Mier: Analysis of Moisture Flow in Cement Composites using a Lattice Type Approach, Materials & Structures, 1997(3)：579～587
[3]S P Shah, S E Swartz and C Ouyang: Applications of Fracture Mechanics to Concrete, Rock, and other Quasi-brittle Materials, Materials & Structures Materials & Structures, 1995(5)：77～93
[5] Lange D A: High performance concrete for transportation structures, Journal of Illinois University, 2003(3)：65～70

Introduction Silicon-based photodetectors are the devices that convert optical signals into electrical signals, and they have unique advantages compared with the systems based on other materials because of the semiconductor material silicon, as the leading photoelectric materials, which have abundant resources, low cost, environment-friendly, mature processing technology and other outstanding properties [1,2].
Common traditional semiconductor materials include cadmium sulfide (CdS) [3], lead sulfide (PbS) [4], indium antimonide (InSb) [5,6], indium arsenide (InAs) [7], mercury telluride (HgCdTe) [8], etc.
[3] Jin B, Huang P, Zhang Q, et al, Self-Limited Epitaxial Growth of Ultrathin Nonlayered CdS Flakes for High-Performance Photodetectors, Advanced Functional Materials, 2018, 28(20): 1800181
[4] Mcdonald S.A., Konstantatos G., Zhang S., Cyr P.W., Klem E.J., Levina L., et al, Solution-processed PbS quantum dot infrared photodetectors and photovoltaics , Nature Materials, 2005, 4(2): 138
[5] Rothman J, Characterization of midwave infrared InSb avalanche photodiode, Journal of Applied Physics, 2015(117): 244502

Basic principle The working roll diameter of surface flexible rolling is small and the roll materials are highly elastic and strong.
Journal of Materials Processing Technology, 2000, 102 (1 - 3): 65-69
Journal of Materials Processing Technology, 1999 (87): 277-280
Journal of Materials Processing Technology, 2002 (129): 333-338
Journal of Mechanical Engineering, 2012, 48 (14): 44-49 (in Chinese)

Introduction: Functionally Graded Materials (FGMs) are an emerging class of materials with great scope for engineering via tailoring of properties.
The concept of FGM was first proposed in the 1980s for heat-resistant applications as an alternative to traditional composite materials made up of two dissimilar materials. [1,2].
FGMs are advanced composite materials with the ability to tailor material for a specific application [1].
In multi-material depositions, inadequate compatibility between the depositing materials also leads to cracks and mechanical property degradation.
Pietrzak, Metal-ceramic functionally graded materials - Manufacturing, characterization, application, Bulletin of the Polish Academy of Sciences: Technical Sciences. 64 (2016) 151–160. https://doi.org/10.1515/bpasts-2016-0017

Pozzolanic Activity of Rice Husk Ash, Comparison of Various Electrical Methods, “Journal of Metals, Materials and Minerals, 19(2), 1-7
[5] Kartini, K. (2011), “Rice husk Ash-Pozzolanic Material for Sustainability”, International Journal of Applied Science and Technology, 1(6), 169-178
International Journal of Electrochemical Science, 09: 5663−5674
Journal of Materials Research and Technology, 2: 60−67
Potential Utilization of Solid Waste (Bagasse Ash), Journal of Minerals & Materials Characterization & Engineering, Vol. 9, No.1, pp.67-77

K Das, Performance evaluation of Al2O3 nano powder mixed dielectric for electric discharge machining of Inconel 825, Materials and Manufacturing Processes. 33(9) (2018) 986-995
Kumar, Parametric optimization of powder mixed electrical discharge machining by response surface methodology, Journal of Materials Processing Technology. 169(3) (2005) 427-436
Pi, Influence of process factors on surface measures on electrical discharge machined stainless steel using TOPSIS, Materials Research Express. 6(8) (2019) 086507
Pi, A Study on Modelling Surface Finish in Electrical Discharge Machining Tablet Shape Punches Using Response Surface Methodology, Journal of Environmental Science and Engineering B. 6(2017) 387-390
Beri, A Study of Multiobjective Parametric Optimization of Silicon Abrasive Mixed Electrical Discharge Machining of Tool Steel, Materials and Manufacturing Processes. 25(10) (2010) 1041-1047

Consequently, the existing materials with low overall properties cannot be applied in engineering.
In this paper, based on the requirements for rubber materials to be used in isolators, and on the standards on rubber isolators for ships, a performance index was proposed for MR elastomer materials to be used in isolators (Table 1).
[8] Li Jianfeng, Gong Xinglong, Zhang Xianzhou et. al, Preparation of Silicone Rubber-Based Magnetorheological Elastomers [J], Journal of Functional Materials, 2006, 37(6): 1003-1005 (in Chinese)
Journal of University of Science and Technology of China, 2004, 34(4): 456–463
[13] Li Jianfeng, Gong Xinglong, Zhang Xianzhou et. al, Preparation of Silicone Rubber-Based Magnetorheological Elastomers [J], Journal of Functional Materials, 2006, 37(6): 1003-1005 (in Chinese).

Mechanical Properties of Self-Healing System in Cementitious Material with Microcapsule Peng Liang1,a, Qianjin Mao1,b*, Ziming Wang1,c and Suping Cui1,d 1College of Materials Science and Engineering, Beijing University of Technology, Beijing, China aS201509050@emails.bjut.edu.cn, bmaoqj@bjut.edu.cn, cwangziming@bjut.edu.cn, dcuisuping@bjut.edu.cn Keywords: cementitious materials; microcapsule; self-healing materials; mechanical property Abstract.
Experiments Materials.
Journal of Advanced Concrete Technology. 10(6) (2012) 207-218
Progress in Polymer Science. 49-50 (2015) 175-220
New building materials, 5 (2014) 40-42

Oh.: Materials Letters.
Oh: International Journal of Refractory Metals and Hard Materials, Vol. 20 (2002), p. 201
Wang: International Journal of Refractory Metals and Hard Materials, Vol. 28 (2010), p. 305
Wong andJ.Y.H Fu:Journal of Materials Processing Technology, Vol. 113 (2001), p. 563
Garcıa-Arribas:Materials Science and Engineering A, Vol.335(2002), p.1798.

All these materials can be either recycled or contaminate the secondary materials when improperly sorted.
Materials Today: Proceedings, 2021
In Waste Materials in Construction Wascon 2000—Proceedings of the International Conference on the Science and Engineering of Recycling for Environmental Protection, Harrogate, England 31 May, 1–2 June 2000, pages 325–331. 2000
Bell System Technical Journal, 27:623–656, 1948
Information Sciences, 222:323–342, 2013