The use of geometric modeling in the design of mixers and devices for additional sealing of fiber-concrete products

K. K. Miroshnychenko

Abstract


Problem statement . Geometric modeling as a kind of mathematical modeling plays an important role in solving modern problems of science and technology. Construction of geometrical models that adequately reflect the properties of the designed materials and products, processes, and etc. significantly reduces the cost of the experimental studies, accelerates the design and implementation of various innovations in production. Building an effective geometric model of the product or process affects the level of technical solutions in the design of new competitive construction elements. Recent widespread use of the fiber-reinforced concrete can significantly enhance building constructions by reducing the cracking of the material during the operation and increasing its resistance to shock loads, as well as stretching and bending. However, experience shows that in practice today it is difficult to obtain uniform fiber reinforced concrete. The reason for this is the use of traditional technological methods for making such a complex material such as fiber concrete. The use of traditional mixing equipment for concrete and mortar does not provide a highly uniform fiber reinforced material. 

Purpose. Development of technological schemes of preparation of fiber reinforced concrete (using geometric modeling for formation of various pieces of equipment) on the basis of the developed model of mixing fiber-containing building materials.

Conclusion. Tests have shown that the application of the developed equipment can significantly improve quality of preparation and packing fiber concrete mass. Using a mixer designed with a flexible body with gutters of variable profile ensures high uniformity of dispersion-reinforced blends with the spread of the strength of up to 3 percent. Due to the high quality of mixing  time of mixing is reduced, and this, in turn, reduces the cost of hardware maintenance and power. Our proposed mobile technological methods of production can significantly extend the scope of fiber reinforced fine-grained concrete (and provide high quality composite).

 


Keywords


mixer; fibrous concrete; building constructions; dispersion armature; geometrical design

References


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Yemelianova I. A. Baranov A. M., Blazhko V. V. Osobennosti protsessa prigotovleniya betonnoy smesi v trekhval'nom smesitele [Peculiarities of manufacturing process of concrete mix in a three-shaft mixer]. Tekhnologii betonov − Concrete technology. Мoscow, 2007, no. 3, pp. 44-46. (in Russian).

Miroshnichenko K.K. Patent 54096 Ukraїni, MPK 7 V 28 S 5/16. Zmіshuvach; [Patent 54096 of Ukraine, IPC 7 В 28 С 5/16. Mixing machine]. Zayavnik і patentovlasnik PDABA, Mіroshnichenko K. K. – zayavl. 10.05.2002; opubl. 17.02.2003, Byul. №2. Patent holder PSACEA, Miroshnichenko К. К. Applied 10.05.2002; publ. 17.02.2003, Bulletin № 2. (in Ukrainian).

Kozhevnikov S. N. Teoriya mekhanizmov i mashyn [Theory of mechanisms and machinery]. Мoscow, Mashynostroenie, 1989. 583 p. (in Russian).

Kolchin K. M. Mekhanika mashyn [Machinery mechanics ]. Leningrad, Mashynostroenie, 1972. vol. 2, 456 p. (in Russian).

Koroliov K. M. Intensifikatsiya prigotovleniya betonnoy smesi [Intеnsivement of concrete mix manufacture]. Мoscow, Stroyizdat, 1976. 58 p. (in Russian).

Koroliov K. M. Effektivnost' prigotovleniya betonnykh smesey [Enhancement of concrete mix manufacture]. Mekhanizatsiya stroitel'stva - Building machinery. 2003, no. 6, pp. 7-8 (in Russian).

Miroshnychenko К. К. Puti povysheniya odnorodnosti fibrobetona [Ways of improvement of fibre concrete homogeneity]. Stroitel'stvo, materialovedenie, mashinostroenie −Construction, materials science, mechanical engineering. Dnepropetrovsk, 2011, v. 58, pp. 467-470 (in Russian).

Miroshnychenko К. К. Uvelichenie nadezhnosti i dolgovechnosti zdaniy pri ikh rekonstruktsii putem primeneniya fibroarmirovannykh kompozitsionnykh materialov [Enhancement of reliability and durability of buildings during their reconstruction by means of fibre reinforced composite materials]. Novyny nauky Prydniprovia − News of science of Prydniprovia. Dnepropetrovsk, 2006, no.1, pp. 32 - 34. (in Russian).

Tarshys M. Yu. Novye apparaty s elastichnymi rabochimi elementami dlya smeshivaniya sypuchikh sred. Teoriya i raschet [New devices with flexible working elements for mixing granular media. Theory and calculation]. Yaroslavl, 2003. 83p. (in Russian).

Panov I. V. Problemnye voprosy proektirovaniya zaschitnykh sooruzhenij grazhdans'koj oborony v sovremennykh usloviyakh [Problematic issues of designing of civil defense structures]. Tekhnologiya grazhdanskoy bezopasnosti – Technology civil safety, 2010, vol. 7, pр. 52-59 (in Russian).

Matias D., Britode J., Rosa A., Pedro D. Mechanical properties of concrete produced with recycledco arseaggregates – influence of the use of super plasticizers. Construction and building materials. 2013, v. 44, pp. 101-109.

Nagrockiene D., Pundiene I., Kicaite A. The effect of cement type and plasticizer addition on concrete properties. Construction and building materials. 2013, v. 45, pp. 324-331.


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Yemelianova I. A. Novyj  printsip sozdaniya betonosmesitelej prinuditel'nogo deystviya [New principle of making enforced action concrete mixers]. Trudy mezhdunarodnoy nauchno-tekhnicheskoy konferentsii “Interstroymekh-2005” − Transaction of international scientific and engineering conference “Interstroymekh-2005”.Tyumen, 2005.               pp. 38–43 (in Russian).

 

Yemelianova I. A. Osobennosti protsessa prigotovleniya betonnoy smesi v trekhval'nom smesitele [Peculiarities of manufacturing process of concrete mix in a three-shaft mixer]. Tekhnologii betonov v luchshikh betonakh Rossii − Concrete technology in the best concretes of Russia.  Мoscow, 2007, no. 3, pp. 44–46. (in Russian).

 

Miroshnichenko K.K. Patent 54096 Ukraїni, MPK 7 V 28 S 5/16. Zmіshuvach; [Patent 54096 of Ukraine, IPC 7 В 28 С 5/16. Mixing machine]. zayavnik і patentovlasnik PDABA, Mіroshnichenko K. K. – zayavl. 10.05.2002; opubl. 17.02.2003, Byul. №2.  Patent holder PSACEA, Miroshnichenko К. К. Applied 10.05.2002; publ. 17.02.2003, Bulletin № 2. (in Ukrainian) .

 

Kozhevnikov S. N. Teoriya mekhanizmov i mashyn [Theory of mechanisms and machinery]. Мoscow, Mashynostroenie, 1989. 583 p. (in Russian).

 

Kolchin K. M.  Mekhanika mashyn  [Machinery mechanics ]. Mashynostroenie, 1972. vol. 2, 456 p. (in Russian).

 

Koroliov K. M. Intensifikatsiya prigotovleniya betonnoy smesi [Intеnsivement of concrete mix manufacture].  Мoscow, Stroyizdat, 1976. 58 p. (in Russian).

 

Koroliov K. M. Effektivnost' prigotovleniya betonnykh smesey [Enhancement of concrete mix manufacture]. Mekhanizatsiya stroitel'stva - Building machinery. 2003, no.6, pp. 7–8  (in Russian).

 

Miroshnychenko К. К. Puti povysheniya odnorodnosti fibrobetona [Ways of improvement of fibre concrete homogeneity]. Stroitel'stvo, materialovedenie, mashinostroenie −Construction, materials science, mechanical engineering. Dnepropetrovsk, 2011, pp.467-470 (in Russian).

 

Miroshnychenko К. К. Uvelichenie nadezhnosti i dolgovechnosti zdaniy pri ikh rekonstruktsii putem primeneniya fibroarmirovannykh kompozitsionnykh materialov [Enhancement of reliability and durability of buildings during their reconstruction by means of fibre reinforced composite materials]. Novyny nauky Prydniprovia − News of science of Prydniprovia. Dnepropetrovsk, 2006, no.1, pp. 32 - 34. (in Russian).

 

Tarshys M. Yu. Novye apparaty s elastichnymi rabochimi elementami dlya smeshivaniya sypuchikh sred. Teoriya i raschet [New devices with flexible working elements for mixing granular media. Theory and calculation]. Yaroslavl, 2003.  83p.  (in Russian).

 

Panov I. V. Problemnye voprosy proektirovaniya zaschitnykh sooruzhenij grazhdans'koj oborony v sovremennykh usloviyakh [Problematic issues of designing of civil defense structures]. Tekhnologiya grazhdanskoy bezopasnosti  – Technology civil safety, 2010, vol. 7, pр. 52- 59 (in Russian).

 

Matias D., Britode J., Rosa A., Pedro D. Mechanical properties of concrete produced with recycledco arseaggregates –   influence of the use of super plasticizers. Construction and building materials. 2013, v. 44, pp. 101– 109.

 

Nagrockiene D., Pundiene I., Kicaite A. The effect of cement type and plasticizer addition on concrete properties. Construction and building materials. 2013, vol. 45, pp. 324–331.



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