KEIM CONCRETAL
®
THE BEAUTY OF CONCRETE!
ANYTHING BUT MONOTON.
Formable, authentic, straightforward: Fair-faced concrete, once considered as ordinary, monotonous and unspectacluar, is today experiencing a revival as one of the most important and versatile building materials. The idea that concrete has always to be grey is no longer true. Today concrete can wear almost any colour it can even shimmer in silver and gold.
3
keim concretal ® – the beaut y of concrete !
CONCRETE IS THE MOST WIDELY USED BUILDING MATERIAL IN THE WORLD.
5
keim concretal ® – the beaut y of concrete !
CONCRETE – A BUILDING MATERIAL AS VERSATILE AS LIFE.
CONCRETE COSMETICS Sometimes concrete behaves like a diva and tends to have unexplainable streaks, discolouration or blowholes that affect the surface appearance substantially. At this point the concrete glaze comes into play, a mineral stain which, when diluted in vari- ous degrees, helps to conceal visual shortcomings so that the finish looks like original intented. This special kind of cosmetics has already salvaged a number of famous buildings by reviving its concrete surface. „Concrete is a very demanding material. The beauty of what you create emerges when you respect the building material‘s nature.“ Louis J. Kahn
REVIVAL OF A BUILDING MATERIAL Cold, grey, dull – for a long time concrete unfortunately had quite negative associations. This mix made of cement, sand and water had a real image problem even though it is the most used building material worldwide. But times have changed and today concrete is once again taking its rightful place as a reputable building material. Planners, designers or builders – they all appreciate the raw and original aesthetics of fair-faced concrete. COLOUR MEETS CONCRETE Whether the facade or the interior– the modern possibilities of designing and finishing concrete have an unlimited potential. A colour finish in glazing technique for example with tinted semi-transparent coatings enhances the character of the concrete, underlines its unique texture and mineral beauty.
CONCRETE? NATURALLY!
MOTHER NATURE PROVIDES THE INGREDIENTS
Unlimited possibilities in every sense: Design function, indoor climate, fire or sound protection. No other building material is as versatile as concrete!
The basic recipe for concrete is very simple and nature supplies everything needed: Cement from limestone and clay, sand, gravel and water. Cement is an indispensable element for concrete production and when combined with water, cement paste is produced. In this way the elements bind together forming into hard rock. THE MIX MAKES THE DIFFERENCE! Concrete is not always the same. Different kinds of concrete are manufactured with different formulations depending on the feature requested: Load-bearing capacity or safety, thermal protection, moisture protection, fire or sound protection.
7
keim concretal ® – the beaut y of concrete !
MINERAL PAINTS FOR A MINERAL BUILDING MATERIAL!
Sonnenlicht
Sonnenlicht
Pigment
Pigment
SILICATE PAINTS ON CONCRETE Silicate paint materials do not form a film on the concrete surface like synthetic resin based coatings. The binding agent is a water-soluble potassium water glass which forms an insoluble bond with the substrate by a chemical reaction, the so-called silicification. milchiges Bindemittel transparentes Bindemittel
COMMON DISPERSION PAINTS
Sunlight
Sunlight
the pigment is coated by the milky binder . light reflection is dull and flat .
onnenlicht
Sonnenlicht
CRYSTALLINE REFLECTION Mineral binders allow light rays to hit the colour pigment directly creating a brilliant reflection bringing the structure to life.
Milky binder
Transparent binder
Pigment
Pigment
Sonnenlicht
Sonnenlicht
Pigment
Pigment
KEIM SILICATE PAINTS
lchiges Bindemittel
transparentes Bindemittel
Sunlight
Sunlight
the pigment is embedded in transparent water glass , creating direct and brilliant light reflection that under - lines the structure .
Pigment
Pigment
milchiges Bindemittel
transparentes Bindemittel
Milky binder
Transparent binder
Pigment
Pigment
nnenlicht
Sonnenlicht
9
keim concretal ® – the beaut y of concrete !
MINERAL NATURE OF THE CONCRETE LOOK Matt, silicate coatings look much more natural than synthetic coatings. Dispersions lead to dry layer thickness between 0.3 mm and 0.5 mm thus levelling irregularities and cover the material texture of the concrete. Appearance and haptics are distorted, violating the natural beauty of the concrete. Mineral coatings don‘t overlay the natural concrete texture, in fact they accentuate. This is especially the case when the application is performed in glazing technique with semi-transparent up to highly translucent coatings. Mineral paints, stains and glazes retain the aesthetic of the material even with a colour design and provide clearly more flexibility than tinted concrete.
„Concrete has a rough quality which I like. Architecture should have a vital, earthy charisma and not look smooth and polished.“ Zaha Hadid
Design in glazing technique with different dilution degrees
KEIM CONCRETAL ® – PROTECTION THAT VALUES AESTHETICS
A PLUS OF OPTIONS A differentiated diagnosis of the concrete surface that needs treatment opens up an entire row of individual protection and design possibilities. Concrete can be whitewashed, colour washed, painted, glazed or coated with a render material. It can also be treated with a water repellent or CO 2 protection. Any design variant provides a different appearance and impression.
PROTECTION AND AESTHETICS Possible concrete decay and necessary protection grades on one hand and the implementation of architectural intention on the other hand often seem to be contradictory. But the demand for design and requirements for preservation and protection do not exclude each other. Quite the contrary is true! KEIM protects concrete efficiently and retains at the same time its mineral character. KEIM CONCRETAL ® is mineral matt protection and pure concrete aesthetics!
BENEFITS KEIM Concretal is convincing:
– Low diffusion resistance which means fast redrying and excellent moisture protection – UV-stable and absolutely light-resistant – Highly weather-resistant – Unequalled durability – Natural, matt concrete appearance
– Non-combustible – Easy to renovate
11
keim concretal ® – the beaut y of concrete !
13
keim concretal ® – the beaut y of concrete !
KEIM CONCRETAL ® -LASUR PURE AESTHETICS
Fair-faced concrete – one of the biggest challenges and at the same time an important element in architecture. Contrary to highly synthetic-modified systems the mineral glaze highlights the natural character of concrete in a unique way and provides an additional weathering protection. KEIM Concretal-Lasur offers unlimited design possibilities – from highly transparent to opaque – and is definitely much more flexible and economical than tinting concrete!
15
keim concretal ® – the beaut y of concrete !
KEIM CONCRETAL ® -LASUR REFINES THE LOOK OF CONCRETE
FOR HIGHEST DEMANDS Protection and finishing of fair-faced concrete surfaces is always associated with two aspects: A definition of protection requirements that are suitable for the situation and condition and the preservation of the characteristic look of concrete surfaces. KEIM Concretal-Lasur combines both demands and represents on the market an exceptional system. SENSATIONAL DESIGN ELEMENT Concrete as building material characterises our building environment significantly. It defines the character of individual constructions or entire residential areas and it influences the urban landscape and working environ- ments. The focus of planners and builders is more and more oriented towards the aspects of design. Architects especially appreciate the chance to be able to use the same material for both the construction and the design.
BENEFITS – Original concrete aesthetics – Retaining of texture and structure – UV-stable – Perfect equalisation of unevenly appearing fair-faced concrete surfaces – Strengthening action by silicification
Nachher
before
after
before
after
KEIM Concretal-Lasur was applied semi-transparent to the concrete surface to enhance the character und to underline the texture, the inner structure and the visual feature.
17
keim concretal ® – the beaut y of concrete !
EVERYTHING GREY IN GREY OR BETTER COLOURFUL? WE CAN DO BOTH!
THE CHOICE IS YOURS! KEIM Concretal-Lasur-System consists of KEIM Concretal-Lasur, KEIM Concretal-Base and KEIM Concretal-Fixativ. All three system components can be mixed with each other in any desired ratio. This is a maximum of flexibility and enables a natural and visual colour matching of the concrete surface.
auphySIKalISch IdEal
19
keim concretal ® – the beaut y of concrete !
DEFINITELY DRY WITH CONCRETAL -W ®
rKömmlicHe sPersionsFarben
Für trocKene Fassaden die idee, eine Fassade mit einer kunststoffbeschichtung gegen Feuchtigkeit zu versiegeln, erscheint zunächst einleuchtend. doch praktisch funktioniert das nicht wie gedacht. Spätestens wenn die Farbe etwas gealtert ist, drängt insbesondere bei Windlasten Wasser in die Fas- sade ein. durch die kunststoffschicht kommt sie dann nur noch sehr langsam wieder heraus. irgendwann blät- tert die Farbe ab oder es bilden sich Wassertaschen.
rKömmlicHe disPersionsFarben Hindern das austrocKnen.
Farbe
Mauer
chtigkeit im Mauer- rk kann durch die hte dispersionsfarbe ht ausdiffundieren. entsteht Staunässe, zu Schäden führt.
OPTIMAL WATER PROTECTION KEIM offers a complete range of concrete protecting paints. Depending on the concrete quality and external influences they comply with demands on aesthetics, protection and safety. KEIM Concretal-W with a low water vapour resistance and water absorption coefficient protects concrete optimally from weathering influences and penetrating water which prevents the corrosion of the concrete steel. A filled variant, KEIM Concretal-W-Grob, is used as priming coat on difficult and repaired concrete surfaces: It closes hairline cracks and levels texture irregularities.
KEIM CONCRETAL ® -W KEY FEATURES – Extremely low sd-value < 0.02 m – Elevated protection from weathering by surface consolidation – Absolutely light-resistant thanks to pure mineral pigments (highest colour stability class „A1“) – Minimal soiling – Preservation of the original concrete aesthetics by the mineral matt surface – Easy to renovate – Tested according to DIN 1504-2 MINERAL MATT SURFACE Pure mineral colour pigments guarantee absolute light fastness (highest colour stability class „A1“) and ensure brilliant colours for years! Plus, the original concrete aesthetics remains preserved.
im soldalit ®
KEIM CONCRETAL ® ALLOWS THE MOISTURE TO ESCAPE
im soldalit ® lässt FeucHtigKeit geHindert ausdiFFundieren.
moisture in masonry can diffuse unhindered . the masonry remains dry and the paint is not affected .
Farbe
Mauer
wall
paint
chtigkeit im Mauer- rk kann ungehindert h außen diffundieren. s Mauerwerk bleibt cken, die Farbe hält.
aus bauphysikalischer Sicht ist eine hohe Wasser- dampfdiffusionsfä igkeit besond rs wichtig. keiM Mineralfarben sind extrem dampfdurchlässig, weil sie auf einem silikatischen bindemittel aufgebaut sind. So kann im baukörper enthaltene Feuchtigkeit ungehindert und schnell nach außen abgegeben werden. Feuch- teansammlungen zwischen anstrich und untergrund und damit einhergehende Schäden werden vermieden. die Fassade bleibt besonders gut gegen Frost und Wasserschäden geschützt. keiM Farben trocknen auch schneller ab. So entsteht kaum taufeuchte auf der Fassade – eine der Haupt- ursachen für algen- und Pilzbefall.
WHAT CAUSES CONCRETE DECAY?
External influences, manufacturing faults or defects in workmanship, constructive shortcomings or combinations thereof may result in serious concrete decay.
FOR ETERNITY Concrete is used wherever protection and safety are requested. Foundations, bridges, tunnels or skyscrapers have to withstand strongest environmental influences. Even concrete, formerly promoted as being »forever«, is not spared from decay. CONSTRUCTIVE DEFICIENCIES DURING THE BUILDING BOOM The use of concrete has been increased since the middle of the 20th century. But at that time quality requirements and technologies were not at today‘s level. So, you may come across older concrete buildings with ageing phenomena and decay such as spalling and corrosion. The causes are manifold, entailing a considerable need for renovation.
HAZARDS In the course of time concrete is attacked by
weathering and thus allows water and pollutants to enter. Moss and algae growth lead to visual short- comings and increase the damaging effect. A high water absorption in combination with frost will destroy the structure of the concrete causing rust on the reinforcement and leads to considerable damages.
OVERVIEW OF HAZARDS – Weather – Water – Shallow depth of cover – De-icing salts – Constructive deficiencies
21
keim concretal ® – the beaut y of concrete !
PROTECTIVE OPTIONS FOR CONCRETE
WEATHERING PROTECTION Silicate coatings can protect concrete surfaces long- term from weathering thanks to their strengthening action (silicification). An extra treatment of the subs- trate with a hydrophobing agent even increases the weathering protection. CO PROTECTION The concrete surface must be sealed in such a way that CO 2 cannot penetrate. For a functioning CO 2 protection the pores and blowholes have to be always closed by filling (full-cover filling) before coating. Just a coating alone would be insufficient in this case. 2
Good concrete, very low carbonation
Carbonation zone is very close to the reinforcement
WATER PROTECTION Water accumulation in the concrete is prevented by a high water-repellency of the outside surface and extreme water vapour permeability from inside to the outside (rust protection by keeping the concrete dry).
Reinforcement is already located in the carbonated area
CHLORIDE PROTECTION Chloride salts are transported into the concrete by water. Chloride protection also means water protection. In this way the penetration of chloride-loaded water is prevented and dry concrete guaranteed. Chlorides that are already present in the concrete cannot become active. ADDITIONAL COVERING Additional cover with a concrete replacement material is required for lasting protection. By spray application of an extra layer thickness from 1 to 3 cm is the material strongly compacted in order to avoid carbonation. A subsequent coating of the surface is performed for visual reasons and as weathering protection.
High chloride load
Large areas of the reinforcement are close or right at the concrete surface
Carbonated concrete Non-carbonated concrete
Carbonation end Steel reinforcement
KEIM CONCRETAL ® -C FOR ADDITIONAL CO PROTECTION
2
KEIM Concretal-C – the most colour-stable CO 2
concrete protection coating! KEIM Concretal-C, formulated with purely
mineral pigments, excels by its convincing, long-lasting colour stability.
MOST COLOUR-STABLE CONCRETE PROTECTING PAINT KEIM Concretal-C is used when an extra CO 2 protection is needed for the protection of concrete surfaces. The CO 2 tightness of this system plays a key role for certain application cases. Despite a marginal synthetic content which guarantees the CO 2 tightness, KEIM Concretal-C allows beautiful, colour intensive surfaces by adding absolutely mineral pigments. CO 2 , WATER AND CHLORIDE PROTECTION The special formulation of selected raw materials enables a CO 2 tightness with fast redrying. The water absorption coefficient ensures fast drying and protects in this way the building material from steel corrosion, frost damages, chloride corrosion as well as from a progressing carbonation.
STANDARD REQUIREMENTS KEIM Concretal-C complies with European standard DIN EN 1504-2 for repair principles 1.3, 2.2, 8.2 and German standard DIN V 18026 for a surface protection system OS4. KEIM CONCRETAL-C KEY FEATURES – Long-term colour stability thanks to pure, mineral pigments – Protection from steel corrosion, frost damages and chloride corrosion – Very fast redrying of the concrete – Protection from progressing carbonation by a very good CO 2 tightness
23
keim concretal ® – the beaut y of concrete !
25
keim concretal ® – the beaut y of concrete !
KEIM CONCRETAL ® CONCRETE REPAIR
TWO SYSTEMS Two tried and tested systems are available for the repair of defective places. All products are slightly modified, cement bound building materials (PCC) that are mixed with water only.
CONCRETE REPAIR ACCORDING TO HIGHEST STANDARDS
Tested according to all cases of application of the ZTV-ING* and with a general building authority test certificate this system can be used for the industrial as well as for the building construction. The system comprises the following components: – KEIM Concretal-MKH (corrosion protection and bonding bridge) – KEIM Concretal-Mörtel-R
(concrete replacement mortar) – KEIM Concretal-Feinspachtel (fine filler for levelling)
ZTV-ING* TESTED SYSTEM STRUCTURE
COMPLETE REPAIR WITH JUST ONE MATERIAL Simple, fast and safe concrete repair in definite terms: Performance with one product only! The material serves as corrosion protection because of its very good adhesion property and makes a bonding bridge unnecessary. The high content of fine particles provides a stucco-like smoothing of the surface. Classic application fields include structural engineering but also constructions made from lightweight concrete.
DIN 1504-3 TESTED SYSTEM STRUCTURE
* Additional technical terms of contract and guidelines for civil engineering works
EFFICIENT MOISTURE PROTECTION FOR CONCRETE
SURFACES MUST NOT ONLY MEET AESTHETICAL DEMANDS … Besides visual demands surfaces must also fulfil requirements for the inside climate and the associated comforts in a home. A crucial contribution comes from the outer shell in protecting the inside from the weather. … BUT ALSO PROVIDE PROTECTION FROM UNCONTROLLED MOISTURE. Particularly uncontrolled moisture influences from outside can seriously interfere the durability and also the indoor climate of a building. Water-repellent treatments and impregnations from KEIM provide a decisive factor that exceeds clearly aesthetical demands.
27
keim concretal ® – the beaut y of concrete !
KEIM CONCRETAL ® CONCRETE SYSTEMS – OVERVIEW
KEY FEATURES – Low diffusion resistance which means fast redrying and excellent moisture protection – UV-stable and absolutely light-resistant
– Highly weather-resistant – Unequalled durability – Natural, matt concrete appearance
– Non-combustible – Easy to renovate
APPLICATIONS
WATER-REPELLENCY/ CONSOLIDATION KEIM Silangrund * KEIM Silan-100 KEIM Concretal-Fixativ
CLEANING
REPAIR
COATING SYSTEMS
KEIM Concretal-Lasur KEIM Concretal-Fixativ (Dilution) KEIM Concretal-Base (Dilution)
Concrete cleaner Bio stripper Algicid-Plus
KEIM Concretal-MKH KEIM Concretal-Mörtel-R KEIM Concretal-Feinspachtel KEIM Concretal-Spezialvergütung KEIM Concretal-Universalmörtel-S
KEIM Concretal-W KEIM Concretal-C
PROTECTION GRADES
CHLORIDE PROTECTION
WEATHER PROTECTION
ADDITIONAL COVERING
WATER PROTECTION CO 2
PROTECTION
KEIM Concretal-C **
KEIM Silangrund * KEIM Silan-100 KEIM Silan-100 + KEIM Concretal-Lasur KEIM Concretal-W KEIM Concretal-C
KEIM Concretal-Mörtel-R
KEIM Silan-100 KEIM Concretal-W KEIM Concretal-C
KEIM Concretal-Fixativ KEIM Concretal-Base KEIM Concretal-Lasur
KEIM Concretal-W KEIM Concretal-C
* Only in combination with a subsequent coating ** Only in combination with blowhole filling
KEIMFARBEN GMBH Keimstraße 16/ 86420 Diedorf /Tel. +49 (0)821 4802-0/ Fax +49 (0)821 4802-210 Frederik-Ipsen-Straße 6/15926 Luckau / Tel. +49 (0)35456 676-0/ Fax +49 (0)35456 676-38 www.keim.com/info@keimfarben.de
KEIM. COLOURS FOR EVER.
Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28Made with FlippingBook flipbook maker