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The characteristics of concrete with recycled varies more than those of conventional concrete, beyond the variations related to the relation a/c to the consumption of binders, there are also the changes determined by variations in the composition and other physical and chemical characteristics of recycled waste.During the last years, there has been an increasing number of chemical reactions between the aggregate and the hydrated cement paste that surrounds it.The reaction occurs more frequently among the components from active sílica of the aggregate and Portland cement alkalis.The alkali-silica reaction and manifests itself through expansion, cracking, popping and oozing a viscous fluid liquid alkali-silica.
Depending on the weather, temperature and particle size, Mehta & Monteiro (1994) considered as aggregates reactive to alkali all the silicate or mineral silica, hydrated silica or amorphous, even a large number of the mineral reacting inaminor degree.
The coarse aggregate used comes from recycling crushing of sanitary ware, whose grain passes through a square mesh sieve with nominal aperture of 19mm and are retained in the sieve ABNT No. 4 (4.8 mm), and the fine aggregate are passing through the sieve ABNT No. 4 (4.8 mm) and retained on the sieve N 0 200ABNT (0.075 mm).
Tests of grain size in both cases was made according to the NBR NM 248.
From the data in Figure 3 and 4 above, it can evidence that among the mortar and concrete, those containing recycled aggregate of sanitary ware showed the highest mechanical resistance.This can be attributed to the higher degree of the grains packing.

Materials were homogenized in calculated rate after dosing and arisen raw material was laboratory burnt by regime: • fastness of heating: 15°C/1min • temperature of burning: 1200, 1250°C • isothermal holding period: 5 hodin • method of cooling: 103 °C/min After done burning arisen clinkers were separated to maximal size of grain 0,063mm.
In taken pictures it was watched fine-grained, brown and rounded particles of belite, in which one there were sporadically closed inclusion of blue coloured alite.
That is why it was proposed two advances for equality evidence: 1) contents of sulphates was taken to sum of oxides CaO, Al2O3, Fe2O3, SiO2 and this ration number was compared for samples condition before burning and after burning 2) contents of sulphates was in given samples conditions modified by annealing loss subtraction.
The clinkers were grinded to maximal size of grain 0,063mm, cement pastes were prepared with estimated amount of batched water, for strength tests it was formed the micro-scantlings, which were exposed in medium saturated of water vapour, in tab.6.
Acknowledgements This work was financially supported by project number: 14-32942S “Effect of fluidized bed ash on the thermodynamic stability of hydraulic binders” This paper was also elaborated with the financial support of the European Union's "Operational Programme Research and Development for Innovations", No.

Tab. 1: List of the sites and analysed samples Region Site Number of samples Colour Description of the site Location of the samples, comment Central Moravia Dobrčice, house no. 5 2 b Samples taken during adaptation of a farm homestead.
The ultramarine grains are very scattered here, its content is not higher than 1 – 2 wt. %.
It is probable that the green organic pigment was produced by precipitation on barite grains that is a common way of green dye production in modern technology.
Blue ultramarine grains are scattered in a green layer ca 1 mm below its surface.
The number of preserved folk houses is limited and it becomes lower.

Determination of RAP gradation: Grain sizes of RAP are different because of differences among speeds of milling, depth of cutting and types of milling machine.
From Table 1, it can be summarized that smaller grain size gives higher asphalt aggregate ratio.
From the point of sieving data alone, cold sieving gives more coarse grain size.
After this, the reading number started to decrease.
The value in this table was the maximum of reading number.

However, the details information of the improved ferroelectric properties of Sr1-xBi2+yTa2O9 in experiment is still not clear, especially for the grain size on nano scale.
According to the results of Huang et al.[13], for a curved surface the surface bond contraction induces a compressive stress σp on the inside grain. 200 400 600 800 1000 SrBi2Ta2O9 Sr0.8Bi2.0Ta2O9 Sr0.8Bi2.2Ta2O9 Sr1.0Bi2.2Ta2O9 Wavenumber (cm -1 ) (b) 808 600 517 456 421 365 318 205 160 3500 3000 2500 2000 1500 1000 500 0 200 400 600 800 Wavenumber (cm -1 ) Intensity (a. u.)
(a) SBT nanoparticles D=17nm E aN an p 2 2 δ σ −= (1) where n is the number of unit cell layer which perform surface bond contraction (n<=3), N is the total number of unit cell layers along the radius direction of a spherical grain, a is the lattice constant, δa/a is the ratio of surface bond contraction, and E is the Young's modules.

The coarsening of grain is related to the grain growth during sintering.
In mechanically alloyed powders the crystallite size is often equated with the grain size [8].
Acknowledgements This research was supported partly by The Japan International Cooperation Agency (JICA) under AUN-SEED/Net Program (account number 6050069) and a Science Fund Grant provided by the Ministry of Science, Technology and Innovation, Malaysia (account number 6013361).

It can be estimated that the number of applications containing optics or optical systems will further increase within the next years.
Beside its low binder content, the material also features a very fine grained structure with grains of less than 0.2 µm in diameter.
Second, an entire wafer mold featuring about 150 single cavities was machines to prove the capabilities of the kinematics over a larger number of cavities.
References [1] Dambon, O. et al., Efficient mold manufacturing for precision glass molding, Journal of Vacuum Science Technology B 27, 1445, 2009 [2] Su, L.; Yi, A., Investigation of the effect of coefficient of thermal expansion on prediction of refractive index of thermally formed glass lenses using FEM simulation, Journal of Non-Crystalline Solids, Volume 357, pp. 3006-3012, 2011 [3] Bifano, T.G., Ductile regime grinding of brittle materials, PhD Thesis, North Carolina State University, 1988 [4] Brinksmeier et al., Dressing of Coarse-Grained Diamond Wheels for Ductile Machining of Brittle Materials, Towards Synthesis of Micro-/Nanosystems, pp. 305-307, 2007 [5] Liu, K.; Li, X.

Microstructural studies revealed that the phase modification influences the grain growth and density of the PZT ceramic.
This diffraction profile can be adjusted to the Rhombohedral (R3mR - card number #77585) and tetragonal (P4mm - card number #90699) structures, according the ICSD structure data bank.
Barium (II) insertion also seems to promote a slight grain size enlargement.
Conclusively, the barium (II) modification has a intrinsic effect on the electric properties of the PZT samples, but does not guarantees a good quality for dielectric properties, which seems to be more dependent of the extrinsic characteristics, such as density, porosity, and grain size.

Hydride Composition Crystallographic Parameters (nm) Orientation relationship g (FCT) TiH a = 0.420; c = 0.470 OR1, OR2 ZrH a = 0.462; c = 0.489 OR1, OR2 d (FCC) TiHx, 1.5number of cycles, show that both dissolution and re-precipitation temperatures increase with the number of cycles.
However during the following cooling, the main part of H atoms migrates towards a grain boundary in the neighborhood, and reprecipitate along it incoherently, as shown in the SAED pattern at bottom.
The SAED pattern at right is that of the neighbor grain in the substrate.
After almost complete precipitate dissolution, a significant part of H atoms migrate towards a grain boundary in the neighborhood and precipitate incoherently (SAED in the bottom).

Analysis with the OPLIMPUS SYX7 optical microscope of the structure resulting from the quenching heat treatment of 800 °C with water cooling, followed by the stress-relief at 250 0C with air cooling, shows the precipitation from the supersaturated β phase of α-phase particles, with acicular shape, both inside the grains and on the boundaries between the grains (Fig. 1).
The number of samples tested, according to the custom of the laboratory, was three.
As a result, by the heat treatment applied the hardness increases, and by the slow stress-relief in the air, from 250 ºC, the internal stresses are reduced, and the pinching caused by the cavitation attack is somewhat more important in the area between the grains (Fig. 4.a ).
M., Cavitation Erosion Mechanisms of Solution Treated X5CrNi18-10 Stainless Steels, Journal of Tribology-Transactions of the ASME, Volume: 138, Issue: 3, Article Number: 031102, DOI: 10.1115/1.4032489, 2016.