PL414310A1 - Method for producing precast concrete units with the nanostructural nature - Google Patents

Method for producing precast concrete units with the nanostructural nature

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Publication number
PL414310A1
PL414310A1 PL414310A PL41431015A PL414310A1 PL 414310 A1 PL414310 A1 PL 414310A1 PL 414310 A PL414310 A PL 414310A PL 41431015 A PL41431015 A PL 41431015A PL 414310 A1 PL414310 A1 PL 414310A1
Authority
PL
Poland
Prior art keywords
mixing
cem
aggregate
nanostructural
cement
Prior art date
Application number
PL414310A
Other languages
Polish (pl)
Other versions
PL232760B1 (en
Inventor
Kazimierz Ginter
Original Assignee
Ginter Kazimierz Zakład Produkcji Materiałów Budowlanych Zakład Pracy Chronionej
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ginter Kazimierz Zakład Produkcji Materiałów Budowlanych Zakład Pracy Chronionej filed Critical Ginter Kazimierz Zakład Produkcji Materiałów Budowlanych Zakład Pracy Chronionej
Priority to PL414310A priority Critical patent/PL232760B1/en
Publication of PL414310A1 publication Critical patent/PL414310A1/en
Publication of PL232760B1 publication Critical patent/PL232760B1/en

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  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Sposób wytwarzania prefabrykatów betonowych o charakterze nanostrukturalnym charakteryzuje się tym, że do mieszanki o zawartości procentowej na m3, stanowiącej 3,5% cementu CEM II/B-M (S-V) 32,5 R, 5,0% cementu CEM IV/B (V) 32,5 R - LH/NA, 2 - 3% popiołu krzemionkowego, 43 - 47% kruszywa drobnego o frakcji 0 - 2, 30 - 35% kruszywa grubego o frakcji 2 - 8, 12 - 15% kruszywa grubego o frakcji 8 - 16, 2,6% wody zarobowej dodaje się 0,04 - 0,050% domieszki chemicznej nanostrukturalnej, po czym miesza jednorodnie przeciwbieżnie, przy czym czas mieszania jednego zarobu wynosi od 20 do 25 sekund, w temperaturze od 5 do 20°C. W pierwszej fazie mieszania dozowane jest kruszywo składające się z trzech frakcji kruszywa 0 - 2, 2 - 8 oraz 8 - 16, następnie dozuje cement CEM II/B-M (S-V) 32,5 R z wodą, po czym cement CEM IV/B (V) 32,5 R - LH/NA wraz z popiołem krzemionkowym i dodaną na końcu domieszką nanostrukturalną. Po ich wymieszaniu przetransportowuje się je do gniazda zasypu wibroprasy i układa w formie przy płynnej sile wibracji 220 kN oraz częstotliwości 50 Hz przy zmniejszonej energii docisku stempla wynoszącej 130 bar/150 kN, po czym zawibrowany i ukształtowany wyrób transportuje do komory klimatycznej i poddaje procesowi hydratacji, dojrzewania i wiązania przez 10 do 12 h w temperaturze od 25 do 28°C i wilgotności powietrza od 75 do 85% następnie w ciągu 6 do 8 godzin dojrzewania zmniejsza się wilgotność do 60% uzyskując wytrzymałość wczesną stanowiącą 80% wytrzymałości właściwej, zaś po upływie 16 do 20 h układa na zafoliowane później palety i poddaje dojrzewaniu na placu składowym przez 28 dni do uzyskania wymaganej wytrzymałości.The method of producing precast concrete components of nanostructural nature is characterized by the fact that for a mixture with a percentage per m3, constituting 3.5% of CEM II / BM (SV) 32.5 R cement, 5.0% of CEM IV / B (V) cement 32.5 R - LH / NA, 2 - 3% silica ash, 43 - 47% fine aggregate with 0 - 2 fraction, 30 - 35% coarse aggregate with 2 - 8 fraction, 12 - 15% coarse aggregate with 8 - 8 fraction 16, 2.6% of the mixing water 0.04 - 0.050% of the nanostructural chemical admixture is added, after which it mixes homogeneously in counter-rotation, the mixing time of one mixing is 20 to 25 seconds, at a temperature of 5 to 20 ° C. In the first stage of mixing, aggregate consisting of three fractions of aggregate 0 - 2, 2 - 8 and 8 - 16 is dosed, then dosed with CEM II / BM (SV) 32.5 R cement with water, followed by CEM IV / B ( V) 32.5 R - LH / NA together with silica ash and a nanostructured additive added at the end. After mixing them, they are transported to the hopper of the concrete block machine and laid in a mold with a smooth vibration force of 220 kN and a frequency of 50 Hz with a reduced stamping pressure of 130 bar / 150 kN, after which the vibrated and shaped product is transported to the climatic chamber and subjected to the hydration process , maturing and binding for 10 to 12 hours at a temperature of 25 to 28 ° C and air humidity of 75 to 85%, then within 6 to 8 hours of ripening the humidity decreases to 60%, obtaining an early strength of 80% of the specific strength, and after He puts 16 to 20 hours on pallets wrapped later and ripens on the yard for 28 days to obtain the required strength.

PL414310A 2015-10-07 2015-10-07 Method for producing precast concrete units with the nanostructural nature PL232760B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL414310A PL232760B1 (en) 2015-10-07 2015-10-07 Method for producing precast concrete units with the nanostructural nature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL414310A PL232760B1 (en) 2015-10-07 2015-10-07 Method for producing precast concrete units with the nanostructural nature

Publications (2)

Publication Number Publication Date
PL414310A1 true PL414310A1 (en) 2017-04-10
PL232760B1 PL232760B1 (en) 2019-07-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL414310A PL232760B1 (en) 2015-10-07 2015-10-07 Method for producing precast concrete units with the nanostructural nature

Country Status (1)

Country Link
PL (1) PL232760B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL423994A1 (en) * 2017-12-21 2019-07-01 Bruk Spółka Z Ograniczoną Odpowiedzialnością Composition of a mix intended for production of the paving sett or the paving boards with surface-applied mica flake and method for putting it into moulds

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL450132A1 (en) * 2024-10-24 2026-04-27 Ren-Bet Spółka Z Ograniczoną Odpowiedzialnością Concrete mix for the production of prefabricated concrete elements with improved insulation parameters and reduced weight, i.e. filigree ceilings and composite walls, manufactured using lightweight aggregates, unmanaged polystyrene and PET waste

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL423994A1 (en) * 2017-12-21 2019-07-01 Bruk Spółka Z Ograniczoną Odpowiedzialnością Composition of a mix intended for production of the paving sett or the paving boards with surface-applied mica flake and method for putting it into moulds

Also Published As

Publication number Publication date
PL232760B1 (en) 2019-07-31

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