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However, cement-asphalt mortar (shorten as CA mortar) is a key material of non-ballasted track, which lies between track slab and concrete roadbed.
CA mortar is a composite material which consists of cement-asphalt binder, sand and a variety of admixtures.
Mercury intrusion porosimetry (shorten as MIP) is most frequently used to measure pore structures of cement-based materials[5].
Experimental Materials.CAB contains PII52.5 Portland cement whose physical properties are given in table1.
[4] Zhou Xiling, Xie Youjun, Zheng Keren,etc: Journal of Wuhan University of Technology, 2013,35:1-5 [5] Xiao Haijun Sun Wei Jiang Jinyan, etc: Journal of Southeast University(Natural Science Edition), Vol.43,p.371-374 [6]Galle C:Cement and Concrete Research，2001，31(10)：1467-1477 [7] China's general administration of quality supervision, inspection and quarantine , China’s Standardization Administration: Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption-part1:Mercury Porosimetry.

In the field of metal matrix composites,aluminum-based composites is an important area due to their low density and good workability,such properties are attractive for diverse industrial applications,mainly to meet the demanded materials by the aeronautic industry and automobile manufacturing.
Experimental procedure Multi-wall carbon nanotubes (MWNTs) (CVD-grown MWNTs of 40~60 nm average diameter and 5~15 μm length, provided by ShenZhen NanoPort Company,the purity is about 95%) and commercial purity aluminum (mean particle size is about 10μm) were used as the starting materials.
Compsites Science and Technology,2008,68(2),p.486 [8] R.
Journal of Metastable and Nanocrystalline Materials,2005,77(24–25),p.77 [9] R.
Journal of Alloys and Compounds,2008,450,p.323 [10] Lin Wang, Heekyu Choi, Jae-Min Myoung,et al.

For rubber materials, the relationship for permanent compression deformation residual rate, physical reaction speed constant and thermal aging time is: 　　　　 　　　　(2) Here, is permanent compression deformation residual rate of rubber material after test for days; is constant for test; is physical reaction speed constant; is testing time in days as well as , is time indicator and .
Combined with the storage conditions and methods for material evaluation, we get the dynamical equation between O-ring permanent deformation rate and ageing time by using the relationship between the material properties’ variation and ageing time as well as Arrhenius equation.
Journal of Capital Institute of Physical Education, Vol.21 No.4, (2009)：p.466~470 (In Chinese) [2] LIN Zong-jun，GAO Jie，WANG Pi-yi, Research on Storage Life of Silicon Rubber O-ring in Different Temperature and Humidity Condition.
Journal of Naval Aeronautical and Astronautical University, Vol. 24 No.2,(2009):237~240 (In Chinese) [3] YANG Xijun, WANG Jin, etc., Storage Life of Silicone Rubber Sealing Ring Used in Solid Rocket Motor.
College of Mathematics and Science, 2013, 32(2):79~81 (In Chinese)

Formulation of a New Type of Electrolytes for LiNi1/3Co1/3Mn1/3O2 Cathodes Working in an Ultra-low Temperature Range Chunwei Yanga , Yonghuan Renb , Borong Wuc , Feng Wud Beijing Higher Institution Engineering Research Center of Power Battery and Chemical Energy Materials School of Chemical Engineering and Environment Science Beijing Institute of Technology Beijing 100081, China; ayangchunweihit@sina.com, b466803343@qq.com , cWubr2528@sina.com, dwufeng@bit.edu.cn Keywords:Component; Ultra-low Temperature Range; LiODFB; Electrolyte; LiNi1/3Co1/3Mn1/3O2; Li-ion battery Abstract.A new type of electrolytes for low temperature operation of Li-ion batteries was formulated in this work.
PC (99.95% Guangzhou Tinci Materials Technology Co., Ltd.), EC (99.95% Guangzhou Tinci Materials Technology Co., Ltd.) and EMC (99.95% Guangzhou Tinci Materials Technology Co., Ltd.) were dried in sequence using 3Å molecular sieves and neutral alumina.
Acknowledgment This project was financially supported by the Beijing Higher Institution Engineering Research Center of Power Battery and Chemical Energy Materials open sustentation Fund (No: 3100012250902) and The Major Project of Chinese National Programs for Fundamental Research and Development (973 Program) Fund (No: 2009CB22010) References [1] T.
Ohzuku,” Novel lithium insertion material of LiCo1/3Ni1/3Mn1/3O2 for advanced lithium-ion batteries”, Journal of Power Sources,vol. 119/121, 2003,pp.171-174
Jow, “ Study of LiBF4 as an Electrolyte Salt for a Li-Ion Battery”,Journal of the Electrochemical Society.

Introduction High performance concrete is a kind of new high-tech concrete; it is made in appropriate quality control after adopting modern concrete technique and selecting high-quality raw materials on based of improving greatly performance of normal concrete [1].
Choose of testing materials and proportion type is comparative little in the experiment, but the results establish definite research foundation for further study in the future.
(In Chinese) [3] Z.W.WU: submitted to Journal of Construction Materials (1998).
(In Chinese) [4] Z.W.WU: submitted to Journal of Silicate (1979).
(In Chinese) [7] Jin-Keun Kim, Chin-Yong Kim, Seong-Tae Yi ,and Yun Lee: submitted to Cement & Concrete Composites(2009) [8] Katalin Szilágyi, Adorján Borosnyói, and István Zsigovics: submitted to Construction and Building Materials (2011)

In recent years some studies indicated Perinereis aibuhitensis showed strong resistance to heavy metals pollution in sediments and played important roles in accelerating the formation of sedimentary material structure, promoting the material conversion, increasing the available nutrients and improving material cycle, etc.[12].
:Environmental Pollution and Control,33(1)(2001), P.46-51 (In Chinese) [2]Tonghui Wei,Tongbin Chen:Environmental Science and Technology21(7)(2001),P.1197-1203(In Chinese) [3]Milenkovie N,Damljanovie M:Polish Journal of Environmental Studies,14(6)(2005),P.781-787
:Journal of Ecology,16(1)(1997),P.58~62(In Chinese) [6]Lanbao Zhu,Di Sheng.
:Journal of Anhui Agri.Sci.,35(33)(2007),P.10776-10778 (In Chinese) [8]Xiezhi Yu.
:Journal of Coal Science & Engineering,Vol.16 (3)(2011),P.316-319 [10]Minghe Zhu,Yongsheng Ding,Ding De-wen:China Environmental Science,26(Suppl.)(2006).P.110-113 [11]Xu Ma,Yongsheng Ding:Dalian Maritime University,2004,P.2~3(In Chinese) [12]Fuhong Sun,Qixing Zhou:Chinese Journal of Applied Ecology.MarVol.17(3)(2006),P.530～534 [13]Jing Wang,Qixing Zhou,Qianru Zhang,Ying Zhang:Environmental Science,Vo1.28(8)(2007),P.26 [14]Edwards CA.

The research shows that the structural design of the rock hob test-bed is reasonable; its function meets experimental requirements of rock cutting; in the case of maximum load, the stress and deformation of the rock hob test-bed are less than their allowable value of materials.
The materials of the rock hob test-bed is carbon steel.
The data of this stress is 150.9Mpa, which is less than the allowable value of its material.
Shanghai jiaotong university journals. 2006,12（40）：2177-2181
Advanced Materials Research Vols. 102-104 (2010) pp 223-226 [3]Liu Shoufa.

Panitch, Polymeric biomaterials for tissue and organ regeneration, Materials Science and Engineering: R: Reports, 34 (2001) 147-230
Liu, et al., The Use of Nanoscaled Fibers or Tubes to Improve Biocompatibility and Bioactivity of Biomedical Materials, Journal of Nanomaterials, 2013 (2013) 16
Afzal, et al., Bioactive behavior of silicon substituted calcium phosphate based bioceramics for bone regeneration, Materials Science and Engineering: C, 35 (2014) 245-252
Agathopoulos, et al., Hydrothermal growth of hydroxyapatite scaffolds from aragonitic cuttlefish bones, Journal of Biomedical Materials Research Part A, 77A (2006) 160-168
Vecchio, Creation of dense hydroxyapatite (synthetic bone) by hydrothermal conversion of seashells, Materials Science and Engineering: C, 26 (2006) 1445-1450.

Various materials are used for their realization.
This determines the need to find new materials for implantology.
Advanced Functional Materials 28(27)(2017)1703868
Microporous and Mesoporous Materials 107(2008)149–160
Materials Science Forum 1016(2021)303–308

Therefore, super-hydrophobic surfaces can be fabricated by constructing lotus-leaflike structures characteristics and modifying with low surface energy materials [2].
In the present paper, a study about the microstructure and materials characteristic were conducted on the lower surfaces of the lotus leaf and artificial biomimetic surfaces.
XPS Spectrum of the Lotus Leaf Lower Surfaces 2.2 Materials property Fig. 2 is XPS spectrum of the lower surfaces of the lotus leaf.
Based on the value of the combination energy of O1s and C1s, they are speculated that there are mainly O-C functional group with larger molecular weight and wax-like materials on the lower surfaces of the lotus leaf.
[6] K J Tang, X F Wang, W F Yan, J H Yu, R R Xu, Fabrication of superhydrophilic Cu2O and CuO membranes, Journal of Membrane Science. 286 (2006)279-284