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Influence of Limestone Powder on the Performance of Cementitious Materials Yun Dong*1,2,3,a, K.T.Xiao2,3,b and H.Q.Yang 2,3,c 1College of Water Resources and Hydroelectric Engineer, Wuhan University, Wuhan, 430072, China 2Yangtze River Scientific Research Institute, Wuhan, 430010, China 3Research Center on Water Engineering Safety and Disaster Prevention, the Ministry of Water Resources, Wuhan, 430010, China adongyun@mail.crsri.cn, bxiaokt@mail.crsri.cn, cyanghq@mail.crsri.cn Key word: Limestone Powder; Fly Ash; Cementitous Materials; Mechanism of action Abstract: This paper study on the mortar strength, particle gradation and mortar fluidity of binary and ternary systems for cementitious materials with limestone powder or fly ash, analyze the influence of limestone powders with different specific surface areas and contents on the performance of cementitious materials; and research the performance of limestone powder in cementitious materials by means of micro analysis.
This article concentrates on the research of the particle gradation, mortar strength, micro structure and hydration characteristics of binary, ternary systems forcementitous materials with limestone powder or fly ash; and analyzes the mechanism of limestone powder in the cementitous material system.
Test Materials and Method Materials The P·O 42.5 Portland cement accorded with GB 175-2007 and the Grade I fly ash accorded with GB/T 1596-2005 were used.
Refer to Table 1 for materials chemical compositions and Table 2 for limestone and fly ash main performance indices.
Journal of Building Materials, Vol.1 (1988), p. 187-191 (in Chinese) [4] Zhang Chunmei, RAMACHANDRAN V S, Influence of Calcium Carbonate Micro Aggregate on the Hydration of Tricalcium Silicate .Journal of the Chinese Ceramic Society,Vol. 16 (1988), p. 110-117(in Chinese)

Scattering of SH Wave on Periodic Cracks in An Infinite Plane of Piezoelectric/Piezomagnic Composite Materials Wei Shi1, a, Lixia Ma1 1School of Mathematics and Computer Science, Ningxia University,750021, Yinchuan, China ashw@nxu.edu.cn Keywords: Piezoelectric/piezomagnic materials, SH wave, Periodic cracks, Singular integral equation.
Introduction Due to the inherent coupling nature, piezoelectric materials and piezoelectric/piezomagnic materials have attracted wide application in engineering.
Piezoelectric materials and piezo- electric/piezomagnic materials in mechanical behavior are brittle and susceptible to crack- ing, Therefore, it is important to study the electro-magneto-mechanical interaction and fraction behavior of those materials.Great efforts have been made to study the fracture behavior of the materials.
Huang: International Journal of Solids and Structure, 37(2000), p.2981-3009
Li: Integral Equation, Science Press, Beijing, 2008.

Organic materials (cable particularly) aging has an adverse effect on the safety of production situations, and it is unscientific to replace organic materials blindly.
A live evaluation system of organic materials aging was developed in present paper.
Another method is based on physical detection, ssuch as elongation at break (EAB) and compressive modulus of cable materials [4].
Compressive modulus of organic materials is the ratio of force to distance.
(5) It can evaluate not only cable but also other organic materials

Long-term durability of advanced polymeric materials in hygrothermal environments is of vital concern.
Pioneering work [1-6] has been conducted on diffusion and viscoelastic deformation in polymeric materials.
The effective time theory to predict long-term behavior of polymeric materials experiencing physical aging from short-term experiments [13] is analogous to the method of reduced variables for thermorheologically simple materials [7], both of which may be described with the concept of a material clock [8].
Elahi: Mechanics of Time-Dependent Materials Vol. 4 (2000), p. 107
Hodge: Science Vol. 267 (1995), p. 1945

Acknowledgement This work is supported by Natural Science Key Project of Department of Education of Henan Province (13A440151).
Journal of China Coal Society, 2010, 35(3): 357-361
Journal of China Coal Soci-ety, 2010, 35(1): 1-6
Journal of China Coal Society, 2004,33( 2) : 167-169
Journal of Mining & Safety Engineering, 2013, 30(1): 74-79

Journal of intelligent material systems and structures, 2004, 15(2): 107-115
Journal of Materials Science, 1999, 34(16): 4001-4010
Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials [J].
Science in China Series E: Technological Sciences, 2009, 52(1): 141-147
Advanced Materials Research, 2008, 47: 65-68

The high quality and functional green building materials can therefore be easily fabricated.
Introduction Green building materials are composed of renewable, rather than nonrenewable resources.
Those materials such alumina (Al2O3) and titania (TiO2) there are candidate materials of energy and green building materials.
The inorganic materials of alumina titania (TiO2) are basic materials used in the modern building for example, harder Al2O3 tile and photocatalyst of TiO2 film.
Diau, Journal of The Electrochemical Society, Vol. 156 (2009), p.

Experiment on Non-Uniformity of Material Removal on Wafer surface in Wafer CMP Jianxiu Su1,a, Jiaxi Du1,b, Xiqu Chen1,c , Xin Ning1 and Renke Kang2 1 Henan Institute of Science and Technology, Xinxiang 453003, China 2Key Laboratory for Precision and Non-traditional Machining of Ministry of Education, Dalian University of Technology, Dalian 116024, China ajxsu2008@people.com.cn, bdujx@163.com, cchxq@126.com Keywords: Chemical mechanical polishing, Material Removal, Non-uniformity.
This result could reveal the material removal mechanism of wafer CMP from the aspect of the non-uniformity of material removal.
Acknowledgements The authors acknowledge the Supported by the Key Project of Science and Technology R & D Program of Henan Province (102102210405), the Research Project program of Natural science of the Education Department of Henan Province (2009A460004) , and Funded by Science and Technology Innovation Program of Henan Institute of Science and Technology.
Hocheng and et al.: International Journal of Machine Tools & Manufacture Vol.40 (11) (2000), pp.1651-1669 [4] P.L.
Tso and et al.: Journal of Materials Processing Technology Vol.116(2-3) (2001), pp.194-200 [5] J.F.

Journal of Power Sources. 2015, 294:141-149
Journal of Solid State Electrochemistry. 2023, 27(1):1-23
Journal of Alloys and Compounds. 2022, 899:163311
Journal of Alloys and Compounds. 2021, 861:158000
Journal of Alloys and Compounds. 2019, 782:451-460

Construction sector development which is impossible without creation of knowledge- and science-intensive materials and technologies oriented to a wide range of practice is an important tool for achieving the goal.
Their distinctive feature is the focus on the primary use of local raw materials, flexibility in production and use organization, high science-intensive and modernization potential.
Saidumov, High-performance SCC-concrete at earthquake resistant construction, International Journal of Environmental and Science Education. 11.18 (2016) 12779-12786
Shapovalov, Features of application of high-mg technogenic raw materials as a component of composite binders, Research Journal of Applied Sciences. 9.11 (2014) 779-783
Karakurt, Properties of the autoclaved aerated concrete produced from coal bottom ash, Journal of materials processing technology. 209.2 (2009) 767-773