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It consumes more than 25 % of the raw materials consumed in the EU [1].
Materials and Methods Three different materials are going to be analyzed for their use as aggregate in mortars: a natural aggregate, a ceramic waste and a concrete waste.
The chemical composition by XRF of the materials is shown in the next table.
It is proposed to carry out mortar mixes to compare the behavior of natural materials with the behavior of aggregate substitutions by recycled materials.
On the other hand, the ceramic materials are more brittle than concrete materials so ceramic aggregates waste will reduce the mortar strength.

However due to the complexity of interaction mechanism of electromagnetic field and composite materials, applying microwave ovens on an industrial level requires comprehensive experimental and numerical investigation to determine and predict the materials behavior during the curing process.
Eq.1 shows the amount of power (P [W/m³]) absorbed by materials interacted with electromagnetic field.
S., Journal of Composite Materials, 18(4)(1984) 387-409
S., International Journal of Material Forming, 1 (1) (2008) 1323-1326
K., Datta, S., & Basu, D., Bulletin of materials science, 31 (7) (2008) 943-956

Thus, the durability of sensible materials is about 20 years compared with PCM, which constitute a quarter of their service life and thermochemical materials [13].
Kannan., Recent developments in phase change materials for energy storage applications: A review., International Journal of Heat and Mass Transfer, 129 (2019) 491–523
Mahlia., Preparation of beeswax/multi-walled carbon nanotubes as novel shapestable nanocomposite phase-change material for thermal energy storage., Journal of Energy Storage, 21 (2019) 32–39
Experimental investigation on copper foam/hydrated salt composite phase change material for thermal energy storage., International Journal of Heat and Mass Transfer, 115 (2017) 148–157
Pielichowski., Phase change materials for thermal energy storage., Progress in Materials Science, 65 (2014) 67–123

In particular, ZnO and SnO2 selected as the initial materials.
Journal of Electronic Measurement and Instrument, 2009,23(12).
Shanghai Construction Science & Technology. 2010(6). p.65-67
Physical properties of SnO2 materials .
Journal of Shandong University(Engineering Science). 2006, 36(4). p.114-117

If the testing position is on reinforcement materials, hardness is higher than the one in which the position is on based materials.
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Testing of Magnetoactive Elastomeric Composite Materials Andrey Ja.
Mazlan, Recent progress on magnetorheological solids: materials, fabrication, testing, and applications, Adv.
Borin, Effect of particle concentration on ferrogel magnetodeformation, Journal of Magnetism and Magnetic Materials. 377 (2015) 373-377
Odenbach, Initial magnetic susceptibility of the diluted  magnetopolymer elastic composites, Journal of Magnetism and Magnetic Materials. 431 (2017) 115–119
Series: Materials Science and Engineering. 862 (2020) 022062.

The Analysis of the Interface States of Low-density Materials in the Forming Process Qiaoli Wang1, a, Yudong Zheng1, b*, Xin Liang2, c, Ying Ling2, d, Kun Qiao1, e, Yonglin Kang1, f, Guoming Zhu1, g 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2Institute of Aerospace Materials and Technology Beijing, Beijing, China awangqiaoli@163.com, bzhengyudong@mater.ustb.edu.cn, cliangxbj@163.com, dkuangslian@vip.sina.com, e12208374@qq.com, fkangylin@mater.ustb.edu.cn *Corresponding author.
The interface of two low-density materials is bent in the forming process, which decreases the performance of materials.
The decay rates of frictional force of these two materials are △fa, △fb .
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Ebrahimi: Materials and Design Vol. 31(2010), p. 493

Hardening Performance and Mechanism of Fluosilicate Surface Treatment Agent on Cement-Based Materials Xiao Liu1,a *, Jianan Guan1,b, Yunsheng Zheng2,c, Ziming Wang1,d, Heqing Shen1,e and Xiaowei Ren1,f 1College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China 2State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing 100041, China aliux@bjut.edu.cn, bjiananguan@yeah.net, czhengyunsheng@outlook.com, dwangziming@bjut.edu.cn, eshenheqing11@126.com, frxwvivi@163.com Keywords: Fluosilicate, Cement-based materials, Surface treatment, Hardening, Silicate.
The fluosilicate surface hardener exhibited better hardening effect than the silicate surface hardener for those matrix materials with different quality, especially for the matrix materials with low compactness.
Experimental Materials.
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