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Online since: December 2010
Authors: Ying Bo Jiang, Xiao Rong Wang
Research on Thermal and Structural Performances of Shale Ceramsite Concrete
Yingbo Jiang a, Xiaorong Wangb
Research Center of Green Building Materials and Waste Resources Reuse, Ningbo Institute of Technology of Zhejiang University, Ningbo, 315100, China
anbj_ren@163.com, bxiaorong-w@nit.net.cn (Corresponding Author)
Keywords: Shale Ceramsite Concrete; Thermal Characteristics; Structural Performances
Abstract.
Shale ceramsite concrete is a kind of materia with lightweight, heat preservation, heat insulation, fire resistance, earthquake resistance and other excellent performances as green building materials, it has very broad application prospects.
Experimental works Materials.
References [1] Chang Chin Lin, Jiang Han: Building Materials Industry Information Vol.9( 2003), p.10 [2] Chunming Lv: Guangxi University, master's thesis 4(2002) [3] Yun-Jiang Li, Xu Bo: China Three Gorges Univ.
(Natural Sciences) Vol.28 (2006), p.51 [4] Fan Jinzhong: Bulletin of the Chinese Ceramic Society Vol.24(2005), p.72 [5] Lu Chunyang, Zhou Guangkong, Wang Lansun, Lv Chunming: Journal of Guangxi University (Natural Science Edition)Vol.29(2004), p.193
Shale ceramsite concrete is a kind of materia with lightweight, heat preservation, heat insulation, fire resistance, earthquake resistance and other excellent performances as green building materials, it has very broad application prospects.
Experimental works Materials.
References [1] Chang Chin Lin, Jiang Han: Building Materials Industry Information Vol.9( 2003), p.10 [2] Chunming Lv: Guangxi University, master's thesis 4(2002) [3] Yun-Jiang Li, Xu Bo: China Three Gorges Univ.
(Natural Sciences) Vol.28 (2006), p.51 [4] Fan Jinzhong: Bulletin of the Chinese Ceramic Society Vol.24(2005), p.72 [5] Lu Chunyang, Zhou Guangkong, Wang Lansun, Lv Chunming: Journal of Guangxi University (Natural Science Edition)Vol.29(2004), p.193
Online since: July 2016
Authors: Helmut Kurth, Vaclav Pospíchal
The construction process itself, however, with a few exceptions (e.g. possible consumption of waste materials) is typically characterised by the negative impacts.
The construction industry is in a disadvantageous position in comparison with many other branches of industry, because of its characteristic features, including: • varying location of the construction activity • individual character of the final product • non-protected working place • large volumes and different kinds of used and transported materials • long construction durations • large land requirements Some construction operations are often realised at permanent centres, such as: • central concrete mixing stations • production and adjustment of formwork • production of reinforcement units • repairs of machines • auxiliary workshops (production of steel structures, carpenter workshops) • stocks, dumping places, garages.
These measures must form part of the design; • exclusion of storage areas of building materials, stores of chemical agents and fuels as well as site roads from under tree crowns; • exclusion of placing additional soil layers above roots (a soil layer merely 20 cm thick may cause the withering of a tree or shrub); • respecting minimum distance from vegetation when locating buildings/structures and utilities; • when selecting excavation technology, preference should be given to such methods as will not threaten the conserved trees; • if the excavation must pass through the roots of a valuable tree, it is necessary to prescribe manual excavation.
Replanting machines of foreign make (Vermeer, Acorn, Bobcat) are designed to handle the nursery material provided, thanks to several times repeated replanting, with a small and compact root block.
Pospichal, Ecological Requirements for Concrete Construction, Applied Mechanics and Materials, Vol. 796, pp. 111-118, 2015 [2] Perez, M.A., Zech, W.C., Donald, W.N., Fang, X., Methodology for evaluating inlet protection practices using large-scale testing techniques, Journal of Hydrologic Engineering, Volume 20, Issue 4, 1 April 2015, Article number 04014049 [3] Klein, P.M., Coffman, R., Establishment and performance of an experimental green roof under extreme climatic conditions, Science of the Total Environment, Volume 512-513, April 05, 2015, Pages 82-93 [4] Bonoli, A., Conte, A., Maglionico, M., Stojkov, I., Green roofs for sustainable water management in urban areas, Environmental Engineering and Management Journal, Volume 12, Issue S11, 2013, Pages 153-156
The construction industry is in a disadvantageous position in comparison with many other branches of industry, because of its characteristic features, including: • varying location of the construction activity • individual character of the final product • non-protected working place • large volumes and different kinds of used and transported materials • long construction durations • large land requirements Some construction operations are often realised at permanent centres, such as: • central concrete mixing stations • production and adjustment of formwork • production of reinforcement units • repairs of machines • auxiliary workshops (production of steel structures, carpenter workshops) • stocks, dumping places, garages.
These measures must form part of the design; • exclusion of storage areas of building materials, stores of chemical agents and fuels as well as site roads from under tree crowns; • exclusion of placing additional soil layers above roots (a soil layer merely 20 cm thick may cause the withering of a tree or shrub); • respecting minimum distance from vegetation when locating buildings/structures and utilities; • when selecting excavation technology, preference should be given to such methods as will not threaten the conserved trees; • if the excavation must pass through the roots of a valuable tree, it is necessary to prescribe manual excavation.
Replanting machines of foreign make (Vermeer, Acorn, Bobcat) are designed to handle the nursery material provided, thanks to several times repeated replanting, with a small and compact root block.
Pospichal, Ecological Requirements for Concrete Construction, Applied Mechanics and Materials, Vol. 796, pp. 111-118, 2015 [2] Perez, M.A., Zech, W.C., Donald, W.N., Fang, X., Methodology for evaluating inlet protection practices using large-scale testing techniques, Journal of Hydrologic Engineering, Volume 20, Issue 4, 1 April 2015, Article number 04014049 [3] Klein, P.M., Coffman, R., Establishment and performance of an experimental green roof under extreme climatic conditions, Science of the Total Environment, Volume 512-513, April 05, 2015, Pages 82-93 [4] Bonoli, A., Conte, A., Maglionico, M., Stojkov, I., Green roofs for sustainable water management in urban areas, Environmental Engineering and Management Journal, Volume 12, Issue S11, 2013, Pages 153-156
Online since: February 2013
Authors: Jian Min Zhu, Xin Hua Zhu, Qi Ming Hang, Feng Shan
Introduction
Materials that possess both magnetic and electrical properties have drawn much attention in recent years because of their potential use in novel devices in which magnetic and electric properties can be mutually controlled [1].
The stoichiometric amounts of the starting materials, Bi2O3 (with 5 mol% excess), Fe2O3, MnO2, BaCO3, and TiO2.
A few trace of minor impurity phase of Bi2Fe4O9 was observed, which might be attributed to the volatilization of Bi in the sintering process and the uneven mixing of starting materials.
Acknowledgements This work is financially supported by National Natural Science Foundation of China (Grant Nos. 10874065, 11174122 and 11134004), key projects from Ministry of Science and Technology of China (Grant Nos. 2009CB929503, 2012CB619400, and 2009ZX02101-4).
Suryanarayana, Structure property relations in BiFeO3–BaTiO3 solid solutions, Journal of Applied Physics. 87 (2000) 855-861
The stoichiometric amounts of the starting materials, Bi2O3 (with 5 mol% excess), Fe2O3, MnO2, BaCO3, and TiO2.
A few trace of minor impurity phase of Bi2Fe4O9 was observed, which might be attributed to the volatilization of Bi in the sintering process and the uneven mixing of starting materials.
Acknowledgements This work is financially supported by National Natural Science Foundation of China (Grant Nos. 10874065, 11174122 and 11134004), key projects from Ministry of Science and Technology of China (Grant Nos. 2009CB929503, 2012CB619400, and 2009ZX02101-4).
Suryanarayana, Structure property relations in BiFeO3–BaTiO3 solid solutions, Journal of Applied Physics. 87 (2000) 855-861
Online since: November 2006
Authors: Yue Sheng Wang, Ya Fang Guo, Chang Hai Tian, Jing Jing Li
In our work, two materials of U71Mn and U75V rail steels are investigated.
Test method The materials of U71Mn and U75V rail steels used in our experiments are supplied by An Shan iron and steel company.
The width of power-wasting area depends on the character of the materials and the loading.
Dimple and glide band are important characters for the plastic deformation in materials.
Journal of Nanjing University of Science and Technology[In Chinese] .
Test method The materials of U71Mn and U75V rail steels used in our experiments are supplied by An Shan iron and steel company.
The width of power-wasting area depends on the character of the materials and the loading.
Dimple and glide band are important characters for the plastic deformation in materials.
Journal of Nanjing University of Science and Technology[In Chinese] .
Online since: January 2012
Authors: Ming Fang Ba, Chun Xiang Qian
It is well known that the dynamic hydration kinetics of composite cemented materials in concrete determined the capillary pore structures.
(2) According to hydration mechanism of cemented materials, the dynamic model of capillary porosity in concrete with certain curing condition could be determined.
Modern Concrete Technology, Science and Technology of Shanxi Press, Xian, 2002.
Journal of American Ceramic Society 80 (1):(1997) 3–21
ACI Materials Journal, 2005, 102 (1): 24–33
(2) According to hydration mechanism of cemented materials, the dynamic model of capillary porosity in concrete with certain curing condition could be determined.
Modern Concrete Technology, Science and Technology of Shanxi Press, Xian, 2002.
Journal of American Ceramic Society 80 (1):(1997) 3–21
ACI Materials Journal, 2005, 102 (1): 24–33
Online since: November 2011
Authors: Ping Yue Wang, Wei Yong Deng, Li Ding, Bei Long Zhang, Hong Hai Huang, Yong Zhou Wang
Experimental
Materials
Fresh natural latex was produced by Mengpeng State Farm in Yunnan Province P.
Viscosity stabilizers were of chemical grade, other materials were of industrial grade.
At ambient temperature τ1 and τ2, equation (1) can be written as follow (2) According to equation (2) the aging life τ2 of polymer materials at temperature τ2 can be calculated out if the aging life τ1 of polymer materials at temperature τ1 and activation energy of oxidation E are obtained.
Acknowledgements This work was supported by National Natural Science Foundation of China (No.50963006), National Science Foundation of Hainan Province(No.808199), is gratefully acknowledged.
References [1] B.C.Sekhar: Journal of polymer science, 1960, 48(150): 133-137
Viscosity stabilizers were of chemical grade, other materials were of industrial grade.
At ambient temperature τ1 and τ2, equation (1) can be written as follow (2) According to equation (2) the aging life τ2 of polymer materials at temperature τ2 can be calculated out if the aging life τ1 of polymer materials at temperature τ1 and activation energy of oxidation E are obtained.
Acknowledgements This work was supported by National Natural Science Foundation of China (No.50963006), National Science Foundation of Hainan Province(No.808199), is gratefully acknowledged.
References [1] B.C.Sekhar: Journal of polymer science, 1960, 48(150): 133-137
Online since: July 2011
Authors: M.F.M. Yusof, C.K.E. Nizwan, Nordin Jamaludin, S. Abdullah
This paper present Acoustic Emission (AE) generated during fatigue mechanism of API5LX70 steel which was widely use as gas pipeline materials.
Acoustic Emission (AE) technique is suitable candidate for this purpose because it is capable to detect macro and micro phenomena in materials including fatigue crack mechanism [2].
Subra Rao, Practical Acoustic Emission, first ed., Alpha Science International Ltd., United Kingdom, 2007
Connors, Acoustic Emission during Fatigue Crack Growth in Steel, Material Science and Engineering. 28 (1977) 263-273
Gradov, Fracture Energy Analysis via Acoustic Emission, International Journal of Fatigue. 8:2 (1986) 67-71
Acoustic Emission (AE) technique is suitable candidate for this purpose because it is capable to detect macro and micro phenomena in materials including fatigue crack mechanism [2].
Subra Rao, Practical Acoustic Emission, first ed., Alpha Science International Ltd., United Kingdom, 2007
Connors, Acoustic Emission during Fatigue Crack Growth in Steel, Material Science and Engineering. 28 (1977) 263-273
Gradov, Fracture Energy Analysis via Acoustic Emission, International Journal of Fatigue. 8:2 (1986) 67-71
Online since: October 2011
Authors: Hong Qing Zhou, Hai Kui Zhu, Ming Liu, Min Liu, Jian Xin Zhao
Sintering, Microstructure and Dielectric Properties of Ca-Al-B-Si-O Glass/Al2O3 Composites with Various SiO2 Content
Liu Ming1,a, Zhou Hongqing1, 2,b, Zhu Haikui1,c, Liu Min1,d and Zhao Jianxin1,e
1College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China;
2State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China)
a liumingming45@163.com, b hqzhou@njut.edu.cn, c zhuhaikui@163.com, d liumin729@163.com,
e 156099025@qq.com
Key words: borosilicate glass; silicon dioxide; microstructure; dielectric properties.
Results show that: Increasing the silicon dioxide content in the glass leads to the corresponding rise of bulk density, dielectric constant of the LTCC materials and the decrease of its dielectric loss and porosity.
Introduction Low Temperature Co-fired Ceramics (LTCC), as a new branch in ceramic materials, played an important role in achieving the co-fired multilayer circuits (CMC)[1,2].
Fig.4 Dielectric properties of glass/Al2O3 composites Conclusions The increasing silicon dioxide results in corresponding rise of bulk density, dielectric constant of the LTCC materials and the decrease of its dielectric loss and porosity.
Journal of the American Ceramic Society, 1994 (77) 1909-1916
Results show that: Increasing the silicon dioxide content in the glass leads to the corresponding rise of bulk density, dielectric constant of the LTCC materials and the decrease of its dielectric loss and porosity.
Introduction Low Temperature Co-fired Ceramics (LTCC), as a new branch in ceramic materials, played an important role in achieving the co-fired multilayer circuits (CMC)[1,2].
Fig.4 Dielectric properties of glass/Al2O3 composites Conclusions The increasing silicon dioxide results in corresponding rise of bulk density, dielectric constant of the LTCC materials and the decrease of its dielectric loss and porosity.
Journal of the American Ceramic Society, 1994 (77) 1909-1916
Online since: November 2013
Authors: S.H. Tang, M.K.A. Ariffin, Rohaya Kamaluddin, Saiful Bahri Mohamed
Cutting is a collection of processes wherein material is brought to a specified geometry by removing excess material using various kinds of tooling to leave a finished part that meets specifications.
The net result of cutting is two products, the waste or excess material, and the finished part.
References [1] LiuWei , Yang Yuying, Xing Zhongwen, Zhao Lihong, “Springback control of sheet metal forming based on the response-surface method and multi-objective genetic algorithm”, Journal of Materials Science and Engineering A 499 (2009), pp. 325–32
Wang, “Application of the forming limit stress diagram to forming limit prediction for the multi-step forming of auto panels”, Journal of Materials Processing Technology, Volumes 187-188, 12 June (2007), pp. 173-177 [16] Gwo-Lianq Chern , “Study on mechanisms of burr formation and edge breakout near the exit of orthogonal cutting” , Journal of Materials Processing Technology, Volume 176, Issues 1-3, 6 June (2006), pp.152-157 [17] Tsann-Rong Lin, “Experimental study of burr formation and tool chipping in the face milling of stainless steel”, Journal of Materials Processing Technology, Volume 108, Issue 1, 1 December (2000), pp. 12-20 [18] J.C.
Jack Quinn, “Accurate Design of a Cam Profile on the CAD System”, Journal of Manufacturing Systems Volume 10/No. 6, (1999) pp. 501-508.
The net result of cutting is two products, the waste or excess material, and the finished part.
References [1] LiuWei , Yang Yuying, Xing Zhongwen, Zhao Lihong, “Springback control of sheet metal forming based on the response-surface method and multi-objective genetic algorithm”, Journal of Materials Science and Engineering A 499 (2009), pp. 325–32
Wang, “Application of the forming limit stress diagram to forming limit prediction for the multi-step forming of auto panels”, Journal of Materials Processing Technology, Volumes 187-188, 12 June (2007), pp. 173-177 [16] Gwo-Lianq Chern , “Study on mechanisms of burr formation and edge breakout near the exit of orthogonal cutting” , Journal of Materials Processing Technology, Volume 176, Issues 1-3, 6 June (2006), pp.152-157 [17] Tsann-Rong Lin, “Experimental study of burr formation and tool chipping in the face milling of stainless steel”, Journal of Materials Processing Technology, Volume 108, Issue 1, 1 December (2000), pp. 12-20 [18] J.C.
Jack Quinn, “Accurate Design of a Cam Profile on the CAD System”, Journal of Manufacturing Systems Volume 10/No. 6, (1999) pp. 501-508.
Online since: October 2013
Authors: Xuejie Wang, Hui Tian, De Yi Zheng, Fei Huang, Min Luo
Piezoelectric materials can convert between electric and stress and has been applied widely in industrial field.
Introduction Lead strontium zirconate titanate (PSZT) ceramic as one kind of piezoelectric materials is with excellent piezoelectric properties [1-2].
For enhancing the properties of PSZT material, various elements are doped into PSZT material [2, 5].
The material is then formed and sintered to a certain round plates.
Lee, in: The piezoelectric properties and the stability of the resonant frequency in Mn–Cr Co-doped PSZT ceramics, Journal of Materials Science: Materials in Electronics. 10-2 (1999)81-84
Introduction Lead strontium zirconate titanate (PSZT) ceramic as one kind of piezoelectric materials is with excellent piezoelectric properties [1-2].
For enhancing the properties of PSZT material, various elements are doped into PSZT material [2, 5].
The material is then formed and sintered to a certain round plates.
Lee, in: The piezoelectric properties and the stability of the resonant frequency in Mn–Cr Co-doped PSZT ceramics, Journal of Materials Science: Materials in Electronics. 10-2 (1999)81-84