PL414310A1 - Method for producing precast concrete units with the nanostructural nature - Google Patents
Method for producing precast concrete units with the nanostructural natureInfo
- 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
Links
- 239000011178 precast concrete Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 239000004568 cement Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000004567 concrete Substances 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000005070 ripening Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- 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.
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 |
Family
ID=58463656
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)
| 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)
| 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 |
-
2015
- 2015-10-07 PL PL414310A patent/PL232760B1/en unknown
Cited By (1)
| 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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