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Online since: August 2013
Authors: Le Sheng Wu, Ming Xin Li, Ze Xi Yuan, Jian Fang
Xiyang: Effect of Multi-Stand Pipe Mill Rolling and Sizing Process on Structure and Property of N80 Non-Quenching and Tempering Steel 36-40Mn2V for Oil Well Pipe.
Caifu: Chemistry and Process Optimization of V-Microalloyed N80-Class Seamless Casing Tube.
Caifu: Chemistry and Process Optimization of V-Microalloyed N80-Class Seamless Casing Tube.
Online since: August 2021
Authors: Ivica Boko, Sandra Juradin, Ivanka Netinger Grubeša, Dražan Jozić, Silvija Mrakovčić, Iva Vukojević
Properties of Spanish Broom Fiber Reinforced Concrete
Sandra Juradin1,a*, Ivica Boko1,b, Ivanka Netinger Grubeša2,c, Dražan Jozić3,d, Silvija Mrakovčić4,e and Iva Vukojević1,f
1Faculty of Civil Engineering, Architecture and Geodesy, University of Split, Matice hrvatske 15, 21000 Split, Croatia
2Faculty of Civil Engineering and Architecture Osijek, Josip Juraj Strossmayer University of Osijek, Vladimir Prelog 3, 31000 Osijek, Croatia
3University of Split, Faculty of Chemistry and Technology, Split, Ruđera Boškovića 35,
21000 Split Croatia
4Faculty of Civil Engineering, University of Rijeka, Ul.
Mrakovčić, Effects of different chemical pretreatments of natural fibers on the mechanical properties of cement mortar, Proceedings of the International Conference on Sustainable Materials, Systems and Structures, RILEM Publications S.A.R.L., 195-201, 2019
Mrakovčić, Effects of different chemical pretreatments of natural fibers on the mechanical properties of cement mortar, Proceedings of the International Conference on Sustainable Materials, Systems and Structures, RILEM Publications S.A.R.L., 195-201, 2019
Online since: January 2018
Authors: Lukáš Kalina, Vlastimil Bílek Jr., Eva Štěpánková, Eva Bartoníčková
Utilization of By-Pass Cement Kiln Dust in Alkali-Activated Materials
Eva Štěpánková1,a, Lukáš Kalina2,b, Vlastimil Bílek Jr.3,c
and Eva Bartoníčková4,d
1,2,3,4 Brno University of Technology, Faculty of Chemistry, Materials Research Centre,
Purkyňova 118, 612 00 Brno, Czech Republic
astepankova@fch.vutbr.cz, bkalina@fch.vut.cz, cbilek@fch.vut.cz, dbartonickova@fch.vut.cz
Keywords: alkali activation, secondary materials, cement kiln dust
Abstract.
With the very high dosage of CKD (50 wt. %), the decrease of compressive strength after 7 days compare to 1 day was occured due to the strong noticeable expansion effect which causes the cracks in the structure.
With the very high dosage of CKD (50 wt. %), the decrease of compressive strength after 7 days compare to 1 day was occured due to the strong noticeable expansion effect which causes the cracks in the structure.
Online since: August 2013
Authors: Yong Chun Cheng, Jing Lin Tao, Hui Li Ma, Jian Ping Huang, Peng Zhang
Introduction
The asphalt mixture is a decentralized system having a multi-level spatial network structure, where asphalt mortar plays the role of bonding aggregate, and filling the voids so that mortar performance viscoelasticity of the asphalt mixture has an important influence [1], therefore in-depth study has important effect on mucilage performance of asphalt mixture.
Table 1 Performance result of matrix asphalt Indicators Penetration (25℃, 0.1mm) Softing Point (℃) Viscosity (135℃, Pa·s) Ductility (15℃, cm) Measured value 83.3 45.6 0.3885 167.1 Specification value 80~100 >44 — >130 Table 2 Technical indicators of diatomite and mineral filler Technical indicators Diatomite Mine filler Color offwhite offwhite Average particle size(μm) 20 150 PH 7.7 7.2 Density(g/cm3) 2.14 2.86 Bulk density(g/cm3) 0.37 2.2 specific surface area(m2/g) 51.1 0.47 loss on ignition( %) 0.25 1.5 Table 3 Chemistry component of diatomite and mineral Filler Chemical composition(%) SiO2 Al2O3 Fe2O3 CaO MgO TiO2 K2O Diatomite 85.60 4.50 1.50 0.52 0.45 0.30 0.67 Mine filler 33.01 14.56 1.57 38.2 9.37 0.52 0.82 Performance comparison test of mine filler and diatomite asphalt mortar Softening point test of mine filler and diatomite asphalt martor.
Table 1 Performance result of matrix asphalt Indicators Penetration (25℃, 0.1mm) Softing Point (℃) Viscosity (135℃, Pa·s) Ductility (15℃, cm) Measured value 83.3 45.6 0.3885 167.1 Specification value 80~100 >44 — >130 Table 2 Technical indicators of diatomite and mineral filler Technical indicators Diatomite Mine filler Color offwhite offwhite Average particle size(μm) 20 150 PH 7.7 7.2 Density(g/cm3) 2.14 2.86 Bulk density(g/cm3) 0.37 2.2 specific surface area(m2/g) 51.1 0.47 loss on ignition( %) 0.25 1.5 Table 3 Chemistry component of diatomite and mineral Filler Chemical composition(%) SiO2 Al2O3 Fe2O3 CaO MgO TiO2 K2O Diatomite 85.60 4.50 1.50 0.52 0.45 0.30 0.67 Mine filler 33.01 14.56 1.57 38.2 9.37 0.52 0.82 Performance comparison test of mine filler and diatomite asphalt mortar Softening point test of mine filler and diatomite asphalt martor.
Online since: October 2013
Authors: Bing Hai Lv, Hong Bo Ji, Lei Sun, Yan Peng, Ju Long Yuan, Chen Chen Dong
In a background project, he calculated the shear stress in the bottom of column of the structure set with nonlinear viscous damper and found that the percentage of the shear stress reduction reached 30%.
Pittsburgh: PA, (2004) [15] SUN Xiwei, ZHANG Feihu, DONG Shen, et al: New Technology & New Process Vol.(2) (2006), p.73 [16] Loan Bica, Ying Dan Liu, Hyoung Jin Choi: Journal of Industrial and Engineering Chemistry Vol.19 (2013), p.394 [17] T.
Pittsburgh: PA, (2004) [15] SUN Xiwei, ZHANG Feihu, DONG Shen, et al: New Technology & New Process Vol.(2) (2006), p.73 [16] Loan Bica, Ying Dan Liu, Hyoung Jin Choi: Journal of Industrial and Engineering Chemistry Vol.19 (2013), p.394 [17] T.
Online since: June 2014
Authors: Shao Jun Liu, Han Li, Ku Wang, Xia Liu
Structure-constrained obstacles recognition for power transmission line inspection robot[C]//Intelligent Robots and Systems, 2006 IEEE/RSJ International Conference on.
Analytical and bioanalytical chemistry, 2002, 373(7): 639-646
Analytical and bioanalytical chemistry, 2002, 373(7): 639-646
Online since: March 2013
Authors: Zhen Pu, Qing Fu Wang, Mao Bin Shuai, Ding Mu Lang
Galvanic Corrosion between Depleted Uranium and 45 Steel
Zhen Pu1, a, Qingfu Wang2,b , Maobing Shuai1,c and Dingmu Lang2,d
1Science and Technology on Surface Physics and Chemistry Laboratory, P.
However, no report related to galvanic corrosion of DU/45 couple is available and the galvanic corrosion data are lack to evaluate the reliability of the bolt connected structure in special environment.
However, no report related to galvanic corrosion of DU/45 couple is available and the galvanic corrosion data are lack to evaluate the reliability of the bolt connected structure in special environment.
Online since: October 2015
Authors: Oldrich Zmeskal, Radek Prikryl, Pavel Florian, Lucie Trhlikova
Thermal Properties of Mannitol Derivative
Lucie Trhlikova1, a *, Oldrich Zmeskal1, b, Radek Prikryl1, c, and Pavel Florian1, d
1Brno University of Technology, Faculty of Chemistry, Purkynova 118, Brno, Czech Republic
axctrhlikova@fch.vutbr.cz, bzmeskal@fch.vutbr.cz, cprikryl@fch.vutbr.cz, dxcflorian@fch.vutbr.cz
*corresponding author
Keywords: mannitol, thermal diffusivity, thermal conductivity, specific heat, transient method, ramp-wise and step-wise method
Abstract.
Fig. 1: Chromatogram spectra of mannitol and PlusICE A164 (shifted up on 50 mRIU) Fig. 2: Mannitol (D-Mannitol) molecular formula and material structure before and after melting The measurement was performed in the temperature range 20 °C – 220 °C.
Fig. 1: Chromatogram spectra of mannitol and PlusICE A164 (shifted up on 50 mRIU) Fig. 2: Mannitol (D-Mannitol) molecular formula and material structure before and after melting The measurement was performed in the temperature range 20 °C – 220 °C.