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Online since: February 2011
Authors: Xiang Guo Li, Bao Guo Ma, Zhong Tao Luo, Jiu Jun Yang
Hydration Process and Mechanism of Fly Ash in the cement mortars Zhongtao Luo1, a, Baoguo MA2,b Jiujun Yang1, c, and Xiangguo Li2,3,d 1School of Material Science and Engineering, Zhengzhou University. 100 Science Road, Zhengzhou 450001, China 2Key Laboratory for Silicate Materials Science&Engineering of Ministry of Education, Wuhan University of Technology. 122 Luoshi Road, Wuhan 430070, China 3Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology. 59 Qinglong Road,Mianyang 621010, China aluozhongtao@126.com, bmbgjob@163.com, cyangjjun@zzu.edu.cn, dlxggroup@163.com Keywords: Fly ash; Hydration; Depolymerization Abstract: In the environments of saturated limewater at 20±2℃ and fly ash in cement mortars at 20±2℃, the hydration mechanism of fly ash is studied.
Experiments Raw materials.
Table1 Chemical compositions of raw materials w/% Raw materials SiO2 Al2O3 Fe2O3 CaO MgO SO3 R2O IL OPC 21.04 6.94 2.36 61.27 2.64 1.94 0.83 3.76 LCFA 50.80 28.51 7.06 3.94 1.10 1.68 2.96 2.65 Test methods.
References [1] Yan Pei-yu: Journal of the Chinese ceramic society Vol. 35 (2007), p. 167 [2] Lian Hui-zhen, et al: Journal of building materials Vol. 4 (2001), p. 229 [3] Wang Pei-ming, et al: Journal of the Chinese ceramic society Vol. 25 (1997), p. 475 [4] Li Dong-xu, et al: Journal of the Chinese ceramic society (in Chinese) Vol. 28 (2000), p. 523 [5] Zhang Yun-sheng, et al: Journal of southeast university Vol. 36 (2006), p. 118 [6] Etsuo Sakaia, et al: Cem.
Res Vol. 35 (2005), p. 1135 [7] Ma Bao-guo, et al: Journal of building materials Vol. 10 (2007), p. 132 [8] F.
Online since: July 2011
Authors: Xian Yan Zhou, Qian Wang, Jing Hao Li, Zhong Feng Zhang
Materials and Methods Materials. 10-year-old eucalyptus veneers came from planted forest in Guangxi Autonomous Region China.
Fiberglass mesh is a kind of GFRP materials which came from Dong lin Fiberglass Cloth Factory in Renqiu.
According to table 2, reinforced materials influenced the static bending strength of lumber.
According to table 2, elastic modulus was affected by reinforced materials on lumber.
Advanced Materials Research Vols.168-170 (2011) pp 578-581.
Online since: July 2003
Authors: Tie Jun Wang, L.S. Ma
It is assumed that the plates are homogeneous and the thermal and elastic properties of materials are temperature independent.
However, the material properties are temperature dependent for many materials.
It is assumed that temperature varies across the plate thickness and the elastic, and thermal properties of material are functions of temperature, which will result in the inhomogeneity of materials and be considered in derivation of governing equations of the plates.
It is seen that the thermal postbuckling equilibrium path becomes significantly lower when the temperature dependent properties of materials are taken into consideration, and the effects of temperature dependent material properties increase significantly with increasing deflections.
This work was supported by the National Natural Science Foundation of China (10125212).
Online since: December 2010
Authors: Xi Lin Lu, Pei Zhen Li, Sheng Long Cui, Da Ming Zeng
Properties of all materials were measured by independent laboratory tests before shaking table tests.
In that way the material nonlinear simulation is realized.
The damping of structure is mostly related with the material properties.
In this condition: (9) ANSYS provides the inputting method of material damping just considering damping which the corresponding damping can be input for different materials.
Lu: Journal of Tongji University (Natural Science), Vol. 38(6), (2010), p. 791-797 (In Chinese) [15] J.
Online since: January 2010
Authors: Lucy Arianie
Lignin was isolated from black liquor of pulp and paper with palm empty bunch materials.
Lignin can be isolated from black liquor of pulp and paper with palm empty bunch materials [2].
The other thing that also support the use of palm empty bunch is the prevailing program of ecolabelling in some of the develop country for the industries that use the materials from forest.
As the result, acacia that is used to be the materials of paper and pulp is started to be replaced by other biomass that contains cellulose, one of it is palm empty bunch.
[7] Ni, Y and Hu Q., Alcell© Lignin Solubility in Ethanol - Water Mixtures, Journal of Applied Polymer Science, 57 (1995), p. 1441 - 1446
Online since: December 2024
Authors: Elsabe P. Kearsley, Walied A.H. Elsaigh, Zeyneb Kemal Nuru
Introduction Geopolymer cement is produced by mixing materials that contain aluminosilicate (also called precursor materials), such as fly ash, slag, laterite and other natural or by-product materials, with either an alkaline solution (NaOH, Na2SiO3, and K2SiO3) or an acidic solution (H3PO4).
Moreover, the alkali-to- precursor material ratio was found to be in the range of 0.4 to 0.6 [12, 13] There is little research on geopolymer mortar produced from naturally occurring materials such as laterite soil.
Furthermore, using natural materials like laterite soils to produce geopolymer mortar can provide advantages to rural areas in developing nations by allowing the production of construction materials at the construction site.
Materials.
Ghosh, “Effect of mix composition on compressive strength and microstructure of fly ash based geopolymer composites,” Journal of Engineering and Applied Sciences, vol. 4, no. 4, pp. 68–74, 2009
Online since: October 2014
Authors: Hendrik L. Bosman, Deborah C. Blaine
a *, BLAINE Deborah C. b University of Stellenbosch, Department of Mechanical Engineering, Stellenbosch, South Africa ahendrik5bosman@gmail.com, bdcblaine@sun.ac.za Keywords: powder metallurgy, titanium, Ti-6Al-4V, bimodal particle size distribution, compaction, sintering, material science Abstract.
Introduction Production of wrought titanium and Ti-6Al-4V alloy remains expensive and has, thus, limited the application of these materials to niche markets.
The objectives for the study are to show the effects of customised particle size distributions for a range of powder blends on the properties at each process step, and to relate the densification pathways to microstructure, material and mechanical properties.
The reduction in shrinkage, improved green and sintered densities would have beneficial effects on the material’s mechanical and microstructural properties.
International Journal of Powder Metallurgy, 2010, Volume 46, Issue 5, p.29 [4] Determination of Impermeable Powder Metallurgy (PM) Materials, MPIF Standard Test methods: Standard 54, 2010 [5] Application Note Titanium, Struers.
Online since: July 2011
Authors: Feng Feng Li, Ming Xi Zhang, Yi Shen, Du Jiao, Gui Qin Hou, Hong Sheng Li
School of Light Industy, Hebei United University, Tangshan 063000, China 2.Key Laborary for Inorganic Non-metallic Materialogy of Hebei Province, School of Materials Science and Engineering, Hebei United University, Tangshan 063009, China Keywords: Nanosilica; iron tailing; chemical deposition method; structure Abstract.
These properties make it a potential candidate for applications in many high-technology fields, such as activator carriers, compound materials of macromolecule, electronic encapsulation materials and fine ceramic materials.
Journal of Mining Science, 2006, 42(4): 403-408
Metal recovery and inorganic eco-materials from tailings by leaching-sintering process [J].
Advances in Metallurgical, Processes and Materials, Ukraine, 2007, 337-343
Online since: September 2014
Authors: Gilbert Silva, Dalton Garcia Borges, Rayana Fernanda Ribeiro Lourenço, Mírian de Lourdes Noronha Motta Melo, Geovani Rodrigues, Márcia Regina Baldissera
Hanada: Materials Science and Engineering A Vol 364 (2004), p. 151
Lee: Materials Science and Engineering A Vol 396 (2005), p. 159
Guo: Progress in Natural Science: Materials International Vol 22(2) (2012), p. 139
Laabs: Materials Science for Engineering,(1991)
Hansen: Materials Science and Technology Vol 6 (1990), p. 6.
Online since: June 2014
Authors: Chun Hua Zhang, Song Zhang, Chen Liang Wu, Jun Zhe Tan, Jie Liu
Laser Cladding of Co-Based Alloy on 316 Stainless Steel ZHANG Song1,a, WU Chenliang1,b, LIU Jie1, ZHANG Chunhua1, TAN Junzhe2 1School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China; 2Shenyang Blower Works Group Corporation, Shenyang 110869, China asongzhang_sy@163.com, bchenliangwu_sy@163.com Keywords: laser cladding, microstructure, Co-based alloy.
Huang: Journal of Functional Materials Vol. 40 (2009), p. 1009 [4] S.
Man: Rare Metal Materials and Engineering Vol. 3 (2001), p. 220 [5] K.H.
Man: Rare Metal Materials and Engineering Vol. 5 (2005), p. 701 [9] B.Y.
Rappaz: Metallurgical and Materials Transactions B Vol. 10 (1992), p. 631