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Its use in high-mobility concrete mixes allows obtaining heavy and fine-grained concretes with the strength of 70-140 MPa (depending on concrete composition) with the high speed of curing.
W/C; kind and number (%) of chemical additives Compressive strength of concrete, MPa Without care, days Normal conditions, 28 days 1 3 7 14 21 28 W/C=0.38; Sikament® BV 3M – 0.7% 16.5 21.9 21.7 20 22.1 24 54 W/C=0.37; Sikament® BV 3M – 0.7%, NMP – 0.04% 18 25 26.4 26 30.6 36.5 47.5 W/C=0.36; Sikament® BV 3M – 0.7%, Xiameter® MHX-1107 – 0.04% 11.4 17.3 22.6 25 27 29.8 55 W/C=0.36; Sikament® BV 3M – 0.7%, NMP – 0.04%, Xiameter® MHX-1107 – 0.04% 10.1 23.6 24.5 25 25 27.1 52.4 Note: NMP – nitrile-methyl-phosphoric acid; Sikament® BV 3M – plasticizer; Xiameter® MHX-1107 – polymethylhydrogen siloxane fluid.
Kardumyan, Modified high-strength fine-grained concretes with improved deformation characteristics, Conc.

Thus, an important objective of any rapid solidification process is to produce a solid of uniform composition, with increased solid solubility of alloying elements, a significant decrease in grain size, and possibly with formation of metastable crystalline phases or production of non-crystalline phases [8].
Figure 1 shows differences in the surface appearance of atomized particles: smooth surfaces were observed in smaller particles than 45 mm and rough surfaces were observed in larger particles and can be related to coarse equiaxed dendritic structures, as well as by presence of micro-contractions in the surface of the powders (Figs. 2a-b), suggesting that large particles solidify with lower undercooling thus presenting a low number of nucleation sites [9].
It is noted that the atomized particles suffer considerable deformations during extrusion and they are accommodated with an appearance of equiaxed grains.

When the proposing expressway through the soil, a large number of abandoned would be generated, which would burden construction costs and bring about many adverse effects to the local environment.
When the proposed line through the weathered red sandstone soil, according to the traditional methods of road construction, the line requires a large amount of gravel or other stone materials, as well as a large number of cement or lime and so on.
The construction will cost greatly, at the same time a large number of abandoned will also bring about many adverse effects to the local environment.
During the tests, to determine the optimal mixing ratio - stabilizer quality to soil grain quality, Portland cement was used as a medium, and specimen’s unconfined compressive strength was used as evaluation criteria.

However, it can activate linking substance of clay grains be defined as "soil mini-structure".
A number of cross sections for CT scanning are marked on soil samples before putting into solutions so that a cross section can be observed continuously.

The lower chord board’s steel is cold-rolled ribbed reinforcement (LL650), the number is 58, its diameter is 5 mm.
Journal of Wind Engineering & Industrial Aerodynamics, Dec. 2003 [3] Zhengrong zhang ,Yong lan:in Chinese (Grain circulation technology, 1997) [4] Bin luo, Zhengxing guo: in Chinese (Special structure 2003) [5] Xinyou wu :in Chinese (Construction technology 1999) [5]Yuefang zhao, xingli fan :in Chinese(Grain &oil warehouse technology communication.1999)

Currently the main austenitic stainless steel grades for piercing jewelry are 301, 302, 303, 304(L), 316(L), 317(L), etc, they have several main problems as follows: Pitting corrosion and crevice corrosion problems The carbon content of stainless steel has evident effects on corrosion resistance, with the increasing of carbon content, the amount of chrome carbide precipitating around grain boundary and the probability of forming chrome-poor area would increase, which would accordingly result in the greater tendency of intercrystal corrosion in corrosive medium.
The pitting corrosion resistance of stainless steel can be calculated by PREN(Pitting Resistance Equivalency Number), PREN = Cr+3.3Mo+20N[5], from this formula we can figure out that the PREN of 301, 302, 303, 304(L), 316(L) and 317(L) is 17, 18, 18, 19.0, 24.2 and 29.7 respectively, which show that the pitting corrosion resistance of 316 (L) and 317 (L) are better than other grades.
Most jewelries need to be polished to mirror finish, it requires not only operators correctly implement the polishing process specification, but the characteristics of jewelry material itself is critical, for example, the material should have compact structure, small and even grain, no shrinkage porosity, gas porosity or inclusion, etc, otherwise the product will easily occur such defects as orange peel, polishing sag, scratch..

Table 4 Road construction scheme Structural layer material type Thickness(cm) modulus (MPa) Poisson's ratio Asphalt wearing course SMA-13 (SBS modified bitumen) 4 300 0.35 Asphalt binder course medium-grained asphalt concrete (AC-20) 6 500 0.35 coarse-grained asphalt concrete (AC-25) 8 700 0.35 Asphalt anti-fatigue layer asphalt stabilized macadam 15 1000 0.35 Lower base layer graded gravel 20 500 0.35 Cushion layer lime-ash soil 30 300 0.2 soil base soil base - 40 0.4 Author uses road design software to calculate the maximum shear stress of asphalt surface and asphalt layer’s internal maximum structural shear stress under heavy wheel load when force of 100Kn is applied..Standard axle load is 100KN, wheel pressure 0.7MPa, single axle load 160Kn which appears at an accumulated percentage of 95% when conducting actual road research is adopted as heavy wheel load.
[4] Transportation Research Circular, Perpetual Bituminous Pavements, Number 503, Washington D.C., 2001

From Fig. 1, we can see nano powder particles has irregular shape, almost present a square prism, because of little scale, its high surface activity leads to agglomeration, nano-magnesium powder of commercially available are vacuum packaging, when mixed with PTFE, place them into the glass box is a must and mix them rapidly once picked out to avoid growing and agglomerating into large grains.
From Fig. 2 (a) it can be found that commercially available PTFE powder is like loose powder and has an appearance of small grains.
From the thermal decomposition curve of Fig.3 above , we knew micro-magnesium get a weight of 130% but competed with the long chain cracking of PTFE in this process, weight loss is 31.43% in number and the total weight loss of the reaction is 61.3% the next step is a slow course of weight loss, it’s the breaking process of short chain into monomer C2H4 completed by a weight loss of 29.94%, the decomposition process continued until 873 ℃well above the nano-magnesium of 770℃ exemplifies that the nano-magnesium shorten the degrading time significantly.

Description of type TEG1-241-1.4-1.2: TEG Thermoelectric is the code for Thermoelectric Generator, 1 is consists of 1 layer (single layer), 241 is the number of pairs of n and p is 241, which means there are 482 junctions, 1.4 is semiconductor grain cross section (1.4 x 1.4) mm, and 1.2 is Grain height 1.2 mm.

FTIR spectra of TiTe3O8 powders in suspensions with TEA and in the wave number range between 500 cm-1 and 4000 cm-1 is shown in Figure 5.
After sintering at 700 ºC for 5 h, TiTe3O8 films present a quite well dense microstructure (fig. 7 right image) in which cubic-like equiaxed grains with average grain sizes of ~ 3 µm characterized the obtained films.