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Adsorption Behavior of Polycarboxylate Superplasticizer on Cement Particles Z.K LI1,2, J.H PENG1 1College of Materials Science and Engineering of Chongqing University,S.Z.Str.147, Chongqing, 400030,China 2Chongqing Research Institute of Building Science, R.H.Str.31, Chongqing, 400020, China Keywords: Polycarboxylate superplasticizer; adsorption; mechanism; cement Abstract: In this paper, the adsorption behavior of polycarboxylate superplasticizer (PC) on cement was examined.
Materials and Experiments 2.1 Materials 2.1.1 Cement.
P.O 42.5 ordinary Portland cement, specific surface area is 340m2/kg, apparent density is 3.1 g/cm3. 2.1.2 Raw materials for the preparation of PC.
Journal of Applied Polymer Science, in press
Effect of a carboxylic acid/sulfonic acid copolymer on the material properties of cementitious materials [J].

It was also limited by the specific materials simulated in that work.
Sciences Press, Beijing, (2006)
ASME Journal of Tribology, 129, 4(2007), pp.957-962
ASME Journal of Tribology, 126, 1(2004), pp.34-40
Applied Mechanics and Materials Vol. 29-32 (2010), pp.332-336.

The experiment use clinoptilolite powder as main materials to prepare the large specific surface and high porosity spherical compound filter material.Experimental results indicate that compound filter material is used as filter medium in biological aerated filter for wastewater treatment, in the early 5 days the average removal rate of NH3-N was 58.5% in biological aerated filter when the average influent NH3-N concentration was 37 mg/L.
Introduction As the biological aerated filter materials, Granular zeolite can improve the biological aerated filter against ammonia impact load effectively,because of material density, big water head loss, short backwash cycle from its irregular shape thus failing to popularize application.
Preparation of compound filter materials Natural clinoptilolite by activating 2 hours at 105-110℃ then cooling, into the ball mill grinding to zeolite powder, through 80 mesh sieve,adding pore-forming agent, adhesive by a certain proportion, after mixed evenly, spray water, rolling into a ball with the manual ball machine, form the size of 3-5mm spherical filter rules, removed into the constant temperature curing box, keeping the temperature of 25 ℃, relative humidity 99%, curing for 3-7 days, remove and rinse, drying to obtain the finished composite filter as shown in Fig. 1.
Acknowledgements This work was funded by the National Scientific Foundation China (NSFC51178207), Shandong Provincial National Science Foundation (ZR2011EEM003).
Journal of Hazardous Materials, Vol. 163(2009),p. 804-808

Furthermore, F energy needed to ablate the coating materials is depending on the threshold fluence (FT) of the materials and RR of the laser pulse, [1, 6].
Journal of Materials Processing Technology, 2001. 114(2): p. 139-144
Journal of Materials Processing Technology, 2003. 138(1): p. 109-115
Applied Physics A: Materials Science & Processing, 1996. 63(5): p. 435-439
Journal of materials science, 1998. 33(13): p. 3245-3249

High-speed cutting technology can widely machine titanium alloy and other high hard materials, due to its high efficiency, high precision, high surface quality, etc.
In addition, the paper indicates that the samples of material TC17 of experiment were being diversity due to the material itself structure of home raw and processed materials.
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Lowe, Journal of Materials Research 17 (2002) 5-8
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Recently, the similar materials are used to do the experiment both at home and abroad, yet it can't reflect the original nature and others of rock fissure in original rock mass.
Since the similar material are made of synthetic materials，it cannot reflect the original rock nature-like fissure and mechanical properties and so on.
Laboratory model test In this experiment, collected one large size of undisturbed sample of Tertiary mudstone from one project in Nanning, Guangxi,China, which is used as materials of laboratory model test of surrounding rock in underground tunnel.
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Introduction Titanium alloys are known as difficult-to-machine materials, especially at dry machining, due to their several inherent properties[1-3].
At lastly, metals which are more adhesive tend to exhibit more ductility at elevated temperatures, thereby leading to possible cold-welding between the abrasive grits and workpiece materials.
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