DE1571377B2 - PROCESS FOR PRODUCING A PUMP AND SPRAYABLE CONCRETE MIX - Google Patents
PROCESS FOR PRODUCING A PUMP AND SPRAYABLE CONCRETE MIXInfo
- Publication number
- DE1571377B2 DE1571377B2 DE19661571377 DE1571377A DE1571377B2 DE 1571377 B2 DE1571377 B2 DE 1571377B2 DE 19661571377 DE19661571377 DE 19661571377 DE 1571377 A DE1571377 A DE 1571377A DE 1571377 B2 DE1571377 B2 DE 1571377B2
- Authority
- DE
- Germany
- Prior art keywords
- concrete
- fibers
- plastic
- fiber
- reinforcement
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B16/04—Macromolecular compounds
- C04B16/06—Macromolecular compounds fibrous
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Bridges Or Land Bridges (AREA)
Description
einem WZ-Faktor von bis zu 0,40 bei Förderlängen bis zu 100 m. Durch die Mitverwendung von Kunststoffrohren für die Förderung kann der Förderweg noch erheblich verlängert werden. -a tool factor of up to 0.40 for conveyor lengths up to 100 m. By using plastic pipes for conveying, the conveying path can still be extended considerably. -
Zur Herstellung der ,erfindungsgemäßen Betonmischung werden vorzugsweise Zuschlagsstoffe nach der Sieblinie E verwendet (DIN Ϊθ45). ' '" Jk' Γ "'To produce the concrete mix according to the invention, aggregates according to the grading curve E are preferably used (DIN Ϊθ45). ''"Jk' Γ "'
Die Zugabe der vorbeschriebenen Bitumenemulsion, die etwa 5 bis 20 Vo des Zementgewichtes" ausmacht, erfolgt bei der Betonmischung. Die Kunstfaser wird zunächst auf eine Länge von etwa 3 bis 10 cm (je nach'Stärke des Bauteils) geschnitten, anschließend mit feinem Teil der Bitumenemulsion benetzt und sodann im Mischkörper oder in der Mischdüse dem Beton zugegeben. Die Vermischung erfolgt während des restlichen Fördervorgangs.The addition of the above-described bitumen emulsion, which makes up about 5 to 20 Vo of the cement weight ", takes place during the concrete mix. The synthetic fiber is first cut to a length of about 3 to 10 cm (depending on the strength of the component) cut, then wetted with a fine part of the bitumen emulsion and then in the mixing body or in the mixing nozzle added to the concrete. Mixing takes place during the rest of the funding process.
Das Wesen vorliegender Erfindung wird nun an Hand von Ausführungsbeispielen weiterhin erläutert; ferner wird der erreichte technische Fortschritt an Hand von Vergleichsbeispielen dargelegt.The essence of the present invention will now be further explained on the basis of exemplary embodiments; Furthermore, the technical progress achieved is presented using comparative examples.
Ein ms Frischbeton besteht aus:
1940kgBetonkies, der sich zusammensetzt aus:A m s fresh concrete consists of:
1940kg concrete gravel, which is composed of:
19,4 kg Sand der Körnung 0,0 bis 0,2 mm
135,8 kg Sand der Körnung 0,2 bis 1,0 mm
271,6 kg Sand der Körnung 1,0 bis 3,0 mm
349,2 kg Sand der Körnung 3,0 bis 7,0 mm
446,2 kg Kies der Körnung 7,0 bis 15,0 mm
717,8 kg Kies der Körnung 15,0 bis 30,0 mm19.4 kg of sand with a grain size of 0.0 to 0.2 mm
135.8 kg of sand with a grain size of 0.2 to 1.0 mm
271.6 kg of sand with a grain size of 1.0 to 3.0 mm
349.2 kg of sand with a grain size of 3.0 to 7.0 mm
446.2 kg of gravel with a grain size of 7.0 to 15.0 mm
717.8 kg of gravel with a grain size of 15.0 to 30.0 mm
maß hergestelltem Beton gegenüber normalem Beton aufzeigen.Show custom-made concrete compared to normal concrete.
Vergleichsversuch 1Comparative experiment 1
Es wurde ein Testwürfel aus normalem Beton, d. h.A test cube of normal concrete, i.e. H.
aus Zement, Kies und Wasser hergestellt (der Zement - bestand aus Portland-Zement,'der Kies aus einem solchen der Korngröße 0 bis 30 mm).made of cement, gravel and water (the cement - consisted of Portland cement, 'the gravel of a those with a grain size of 0 to 30 mm).
Die Testwerte dieses Betons sind:The test values of this concrete are:
t Druckfestigkeit: 270 bis 310 kp,
Biegezugfestigkeit: 28 kp,
Balkenprüfung, durchgeführt an einem Betonbalken des Formats 10· 15· 17cm, die
Balkenprüfung ergab eine Bruchlast von
900 kp. t compressive strength: 270 to 310 kp,
Flexural strength: 28 kp,
Beam test carried out on a concrete beam of the format 10 x 15 x 17 cm, the
The beam test showed a breaking load of
900 kp.
Hier handelt es sich also um einen Testwürfel aus Beton, der weder einen Gehalt an Bitumen noch an ao Fasern aufweist.This is a test cube made of concrete that does not contain either bitumen or ao having fibers.
Vergleichsversuch 2Comparative experiment 2
Es wurde ein Testwürfel aus dem gleichen Beton wie bei Versuch 1 hergestellt, der jedoch noch einen as Zusatz von 5 Gewichtsprozent an bituminöser Emulsion (bezogen auf den trockenen Zement) besitzt.A test cube was made from the same concrete as in Experiment 1, but one more The addition of 5 percent by weight of bituminous emulsion (based on dry cement).
Es wurden folgende Testwerte gemessen:The following test values were measured:
Druckfestigkeit: 460 kp,
Biegezugfestigkeit: 77 kp, £Compressive strength: 460 kp,
Flexural Strength: 77 kgf, £
Balkenprüfung: 1320 kp Bruchlast.Beam test: 1320 kp breaking load.
1940,0kg1940.0kg
300 kg Portlandzement 275,
3,5 kg Bitumenemulsion,
15kg0,8mm starken, 100mm langen gewaschenen
Polyesterfasern,
124 kg Anmachwasser."' Λ '*300 kg Portland cement 275,
3.5 kg bitumen emulsion,
15kg0.8mm thick, 100mm long washed polyester fibers,
124 kg mixing water. "' Λ ' *
Die überlegenen technischen Daten dieses sßrfindungsgemäß hergestellten Frischbetons werden weiter unten erläutert.The superior technical data of this according to the invention produced fresh concrete are explained below.
^ Beispiel 2^ Example 2
Ein ms Frischbeton besteht "aus:
1890kg BetonMes4de^One m s fresh concrete consists "of:
1890kg BetonMes 4 de ^
Hier handelt es sich also um einen Testwürfel aus Beton, der zusätzlich noch eine bituminöse Emulsion enthält und der gleichfalls zum Stand der Technik gehört.So this is a test cube made of concrete, which also has a bituminous emulsion and which also belongs to the state of the art.
Vergleichsversuch 3Comparative experiment 3
Es wurde ein Betonwürfel getestet, der aus dem gleichen Beton bestand, wie der des Vergleichsversuchs
2,->wobei jedoch diesmal noch ein Gehalt von 3 % Polyesterfaser (bezogen auf das Zementgewicht)
dem Beton während des Mischens zugegeben waren. Die Mischzeit betrug 2 Minuten. , y f ^ ,
, f Dieser Betonwürfel entspricht dem erfindungsgemäßen Beton des vorgenannten Beispiels 1.
A concrete cube was tested which consisted of the same concrete as that of comparative test 2, -> but this time a content of 3% polyester fiber (based on the cement weight) was added to the concrete during mixing. The mixing time was 2 minutes. , y f ^,
, f This concrete cube corresponds to the concrete according to the invention of the aforementioned example 1.
18,9 kg Sand der Körnung 0,0 bis18.9 kg of sand with a grain size of 0.0 to
■-945,0 kg Sand deriKörnungi7,Ö bis 15,0 nim ^aiu^i^^^^gps v»,. - Λ t*-, \2< ζ ί—Z-^ -^, W^sW?* 4F* ' -Ί»-?*'1--?, '■'^"'Es'wurdeTem Betonwurfel getestet,'■ -945.0 kg of sand deriKörnungi7, Ö to 15.0 nim ^ aiu ^ i ^^^^ gps v »,. - Λ t * -, \ 2 <ζ ί— Z- ^ - ^, W ^ sW? * 4 F * ' -Ί »-? *' 1 - ?, '■'^"'It' was tested with a concrete cube , '
1890,0kg ' ^Vp^JI'U* ,- " " " >: 55 gleichen'Beton bestand wie der des >1890.0kg '^ Vp ^ JI'U *, - """ >: 55 the same concrete as that of the>
300 kg Hochofenzement 275,
6 kg Bitumenemulsion, * h 300 kg blast furnace cement 275,
6 kg bitumen emulsion, * h
20kg0,6mm starken/oÖmm langen gereckten20kg0.6mm thick / oÖmm long stretched
Polyamidfasern/ 112,5 kg Anmachwasser.Polyamide fibers / 112.5 kg mixing water.
Die Überlegenheit dieses erfindunggemäß hergestellten Frischbetons ist weiter unten an Hand von Vergleichsversuchsergebnissen erläutert.The superiority of this fresh concrete produced according to the invention is shown below with reference to Comparative test results explained.
Es wurden ferner Vergleichsversuche durchgeführt, die die sprunghafte Überlegenheit von erfindungsgeder aus dem Vergleichsversuchs 2/ wobei jedoch diesmal noch ein Gehalt von 3 % Polyamidfaser (bezogen auf das Zementgewicht) einer Stärke von 0,6 mm und einer Länge von 60 mm dem Beton während des Mischens zugegeben wurden. Die Mischzeit.-betrag 2 Minuten. ; ■There were also comparative tests carried out, which show the leaps and bounds of erfindungsgeder from comparative experiment 2 / but this time a content of 3% polyamide fiber (based on the cement weight) a thickness of 0.6 mm and a length of 60 mm were added to the concrete during mixing. The mixing time is 2 minutes. ; ■
Es wurden folgende Testwerte ermittelt:The following test values were determined:
Druckfestigkeit 580 kp,
Biegezugfestigkeit 145 kp.Compressive strength 580 kp,
Flexural strength 145 kp.
Dieser Betonwürfel entspricht dem erfindungsgemäßen Beton des vorgenannten Beispiels 2. This concrete cube corresponds to the concrete according to the invention of the aforementioned example 2.
Claims (3)
und gegen Säuren widerstandsfähig, sie sind aber mit 50 Im Gegensatz dazu müßte eine mit Kunststoff umdem schwerwiegenden Nachteil behaftet, bei dauern- mantelte Glasfaser in einem besonderen aufwendigen der Einwirkung von Feuchtigkeit und stärkeren Al- Verfahren mit der bereits erwähnten Besandung verfallen ihre -Festigkeitrnach -und -nach~zu verlieren. sehen-werden, da- andernfalls-in -erster-Linie- wegenThe state of the art includes .. attempts to. It was completely surprising and not foreseeable that the reinforcement of Befconbäüteile '· -kuftsthafzümhömte the : electrostatic charge during the; Trans- "glass fibers to -verwefaleiv. F These '■ only ' - '■ äü ^ smaller :! " -Ports from the cutting device to the mixing nozzle or plate and cylinder shell models made of cement- the mixing body, which were employed both with the glass fiber and mortar Tests have shown that plastic teasers ™ can actually be used, but in the case of the latter an effective reinforcement with fiber material is fundamentally possible, in accordance with the invention, but this can do a number of things that the concrete mix is also a bit fundamental Has disadvantages. The glass fibers menemulsion containing aqueous art are indeed chemischf ^ eutealjvyerwitterungsbeständig '...: fabric glue-Dispersion.enthält.- ·> s r,
and resistant to acids, but they are with 50 In contrast to this, one with plastic would have the serious disadvantage, with permanently coated glass fiber in a particularly complex exposure to moisture and stronger Al processes with the already mentioned sanding, their strength lapses. and -to lose ~. will-see, otherwise-in-the-first-line way
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC0038564 | 1966-03-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1571377A1 DE1571377A1 (en) | 1970-12-17 |
DE1571377B2 true DE1571377B2 (en) | 1973-03-22 |
Family
ID=7023341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19661571377 Pending DE1571377B2 (en) | 1966-03-23 | 1966-03-23 | PROCESS FOR PRODUCING A PUMP AND SPRAYABLE CONCRETE MIX |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1571377B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3130724C1 (en) * | 1981-08-03 | 1983-03-10 | Tatsuro Ube Yamaguchi Okamura | Spray-on insulating material, containing organic fibres, for buildings, and a process for producing it |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT385027B (en) * | 1985-09-27 | 1988-02-10 | Porr Allg Bauges | SOLIDS FOR SPRAY CONCRETE |
-
1966
- 1966-03-23 DE DE19661571377 patent/DE1571377B2/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3130724C1 (en) * | 1981-08-03 | 1983-03-10 | Tatsuro Ube Yamaguchi Okamura | Spray-on insulating material, containing organic fibres, for buildings, and a process for producing it |
Also Published As
Publication number | Publication date |
---|---|
DE1571377A1 (en) | 1970-12-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 |