Icon Kontakt Email

vasb@eurva-purzbgrpuavx.pbz

Icon Telefon

+49 2638 | 9317-0

APPLICATIONS CONCRETE ADMIXTURES | SURFACE PROTECTION PRODUCTS

CONCRETE ADMIXTURES AND SURFACE PROTECTION PRODUCTS CAN BE USED IN MANY DIFFERENT WAYS

Admixtures for the concrete block industry

Plasticizers

Plasticizers

Field of Application

Plasticizers are used in the production of earth-moist concrete for concrete products and artificial stones. Production of paving stones or curbs is a typical field of application for plasticizing in the concrete block industry. In terms of their intended use, these products are exposed to a number of external influences and must possess special properties. The resistance to frost and freeze-thaw damage or chemical damage must be assured along with resistance to traffic and weather influences. Concrete stone products such as paving stones, slabs, curbs or bricks need to be used over the long term, while retaining their functional and visual properties.

Plasticizers are added to the concrete during the production of concrete blocks. They increase compaction readiness and ensure high strength of the concrete. Green strength, impermeability and durability are increased. Plasticizers with color intensifiers are used to manufacture colored concrete block products. Moreover, plasticizers also reduce efflorescence on concrete blocks. Rhein-Chemotechnik GmbH is a pioneer in the development of plasticizers for earth-moist concrete for the production of high-quality directly demolded concrete block products in fully automatic production installations using the vibro-compaction and pressing process

To the Prodcuts

Water-repellent and efflorescence control admixtures

Water-repellent and efflorescence control admixtures

Field of Application

Water-repellent and efflorescence control admixtures are special admixture combinations with plasticizing, waterproofing, efflorescence-reducing and color-intensifying properties.

They are used in the manufacture of high-quality concrete products. Waterproofing protects the concrete from the penetration of corrosive substances. In addition, they regulate the water balance of the concrete by reducing capillary and atmospheric water absorption. Concrete block treatments such as waterproofing increase the weather resistance of concrete blocks. Primary and secondary efflorescence is reduced.

The use of water-repellent and efflorescence control admixtures creates even more positive product properties, including:

  • Intensified color effect and color stability
  • Reduced irregularities caused by sticking
  • Enhanced compression, tensile and bending strength
  • Increased density
  • Improved appearance thanks to the closed concrete structure
  • Pearling effect

The quality and longevity of the concrete block products is significantly improved thanks to the use of concrete block treatments and waterproofing agents.

To the Products 

 

Concrete admixtures for precast- concrete industry and for ready-mix- concrete industry

Air entraining agents

Air entraining agents

Field of Application

Air entraining agents form a system of stable micropores in the concrete. The introduction of the evenly distributed pores results in increased frost and freeze-thaw resistance of concrete.

The air entraining agent molecules are dissolved in the cement paste and stabilize the air bubbles introduced by mixing the concrete. The stability of the air pore system is thus enhanced. The addition of air entraining agents gives the concrete room for freezing water to expand and can compensate for the increase in volume caused by frozen water.

Capillary water soak and the ice pressure of the freezing water are reduced. Air entraining agents are therefore used in a number of applications, including concrete production in road construction (road surfaces), bridge construction (bridge parapets) and prefabricated construction (angle supports, steps, …).

To the Products

Stabilizers

Stabilizers

Field of Application

Stabilizers increase the cohesion of flowable and self-compacting concrete. They are used to prevent subsidence (sedimentation) of aggregates in the concrete or to prevent water secretion on the surface (bleeding of the concrete). Stabilizers reduce concrete separation and settling.

These undesirable reactions can occur during or after transport, or when conveying, placing, compacting or leveling the fresh concrete. The properties of fresh concrete improve thanks to the use of stabilizers.

Concrete becomes more flowable and easier to process. Stabilizers are used in the production of pumping concrete, for example.

To the Products

Air-detraining Agent

Air-detraining Agent

Field of Application

Air-detraining Agents are used in the production of nearly pore-free concrete components with a exposed concrete look. They increase resistance to damaging environmental influences, and reduce the tendency towards efflorescence and soiling.

During and after compaction, the entry of air into the concrete is reduced. At the same time, bleeding of the concrete is supported. Applications in which air-detraining agents are used include the production of slabs, steps and components for street furniture with an optimal exposed concrete look.

To the Products

Concrete Retarder

Concrete Retarder

Field of Application

Concrete retarders delay hydration of the cement and setting of the cement paste, thereby prolonging workability (≥ 3 hours compared to base concrete). The resting phase of the concrete is extended. Retarders are typically used in the following areas:

  • Manufacture of large components that need to be manufactured without construction joints
  • Concrete work at high temperatures
  • Ready-mixed concrete with long travel times

To the Products

Accelerator of Hardening

Accelerator of Hardening

Field of Application

Accelerators of hardening accelerate hardening of the concrete. At the same time, they also lead to faster heat build-up. These products are used for work with concrete at low temperatures. Drying processes can be significantly shortened through the use of setting accelerators. This advantage is mainly used in the production of precast concrete parts.

Workflows and cycle times can be optimized.

The use of accelerators of hardening leads to a significantly reduced need to use external heat sources, even to the point that heating measures are not needed at all. This generates energy savings, enabling the production of cost-optimized concrete products.

To the Products

Concrete plasticizers

Concrete plasticizers

Field of Application

Concrete plasticizers enable the production of cost-optimized quality concrete of any consistency, strength or exposure class.

They improve the workability of fresh concrete. Concrete becomes more homogeneous and compaction ready. This influences the w/c value of the concrete. Water savings ranging from 5 to 10 liters/m³ are feasible.

Concrete plasticizers are suited for the production of concrete with special properties (e.g. waterproof concrete, FT concrete), pumping concrete. Material costs are optimized.

To the Products

Concrete superplasticizers

Concrete superplasticizers

Field of Application

Concrete superplasticizers are used in the manufacture of finished parts with the highest early and final strengths. They are particularly suitable for products with exposed concrete quality.

Concrete superplasticizers are used in conventional production and in the production of highly-flowable concrete and self-compacting concrete (SCC).

The admixture has a particularly strong plasticizing effect and at the same time causes a significant reduction in the water requirement. The workability of the concrete is also improved thanks to the use of concrete superplasticizers.

To the Products

Surface protection products: Impregnating Agents | Sealers | Coatings

Surface protection for concrete block products

Surface protection for concrete block products

Field of Application

When impregnating, sealing and coating concrete block products such as terrace slabs, paving stones or similar items, the surfaces are provided with a protective layer. This ensures that the slabs and stones are easy to clean. The greening and soiling tendency is thus reduced and the visual appearance and the usability of the concrete block products is improved.

Surface Protection Products are protected against the penetration of liquids such as water, drinks or oils. Depending on the product, impregnations, seals and coatings can provide different properties:

• Strong pearling effect
• Enhanced color brilliance
• Positive effect on reduced efflorescence
• Reduced tendency towards soiling and greening,
• Shiny appearance
• and much more

The application options for our surface protection products are also varied. They can be applied at the factory on the wet side directly after pressing and after washing, if needed, or on the dry side using various methods.

To the Products

Release agents for high-quality exposed concrete surfaces

Release agents

Release agents

Field of Application

Release agents are mainly used in the production of top-quality exposed concrete surfaces. The agents are applied to the formwork before it is filled with concrete and form a separating film between the formwork and the fresh concrete. When selecting the appropriate release agent, you need to take the formwork into account. Different products are offered depending on the surface (e.g. wood or steel, absorbent or non-absorbent material). Direct adhesion of the forms to the concrete is thus avoided. The finished product is easy to remove from the formwork.

In the manufacturing process, the release agent performs two tasks:

• Improvement of the surface quality of exposed concrete parts
• Protection of the formwork and molds against external influences

In addition, release agents must meet a number of requirements:

• Easy and simple separation of formwork and concrete
• Concrete surfaces produced must be visually flawless
• The surface structure should be dense and free of pores
• Easier application to formwork materials

To the Products

Cleaning and maintenance products for machines and surfaces

Cleaning and maintenance products 

Cleaning and maintenance products

Field of Application

Cleaning and maintenance in concrete and precast parts facilities boost safety and improve working conditions. Increased lifetime of maintained assets. This is how proper cleaning and care pay off in the long term. We also recommend regular cleaning and care for natural and concrete stone coverings, for example to remove efflorescence.

To the Products

56 years of experience and competence

Over 260 products available

Customised developments

The possible applications and purposes of use for our products are diverse. As leading experts in chemical construction products for the concrete processing industry, we would be happy to help you select the right products. You can have confidence in our decades of expertise as a reliable partner for the concrete industry.

Our products are used worldwide in the manufacture of top-quality concrete products – their performance impress our customers every single day.

How can we help?

Privacy

3 + 14 =

Your enquiry to
Rhein-Chemotechnik GmbH

Our Sales staff will further assist you – over the phone or personally at your site. Schedule your consultation appointment today.

How can we help?

Your enquiry to
Rhein-Chemotechnik GmbH

We are happy to advise you.
Our Sales staff will further assist you – over the phone or personally at your site. Schedule your consultation appointment today.

Privacy

12 + 13 =

Concrete admixtures for a wide range of applications

We stock concrete admixtures for the concrete block industry, the precast concrete industry, as well as for ready-mixed and construction site concrete.
Please contact us. We will be happy to advise you.

Surface Protection Products
Impregnation | Sealing| Coating

Surface protection products protect the stone, increase the colour brilliance and extend its product life. Surface protection products from Rhein-Chemotechnik GmbH are tested according to strict quality specifications in our own laboratory and by independent, external institutes.

Release Agents

Our release agents from the tectol series enable you to create attractive and smooth concrete surfaces. tectol includes release agents for various formwork materials such as wood, plastic or steel. We will be happy to advise you.

Cleaning and Maintenance Products

Cleaning and maintenance in concrete and precast plants increase safety, improve working conditions
and extend the service life of the assets. We will be happy to advise you

Admixture Dispensers

You can improve the properties of your fresh or hardened concrete with optimally dosed concrete admixtures. Our concrete admixture dosing systems help you get the most out of your product. We will be happy to advise you.

Biodegradable Granulate

PAVELITH® InterLay - the new and environmentally friendly layer separation for concrete block products. We will be happy to advise you.

Service | Consulting | Chemistry and Concrete Laboratory

The quality of our products and services ist of utmost importance. All products and services of Rhein-Chemotechnik GmbH are measured and evaluated in accordance with the specifications of a DIN EN ISO 9001 cerified quality management system.

Welcome to Rhein-Chemotechnik GmbH

With our team of 40 employees, we develop and sell high-quality concrete admixtures and surface protection products. With fixed project partners, we accompany you from the first enquiry to the use of our products on your site.

Contact

Rhein-Chemotechnik GmbH
Gewerbepark Siebenmorgen 8
53547 Breitscheid

Phone. +49 (0)2638 | 9317-0
vasb@eurva-purzbgrpuavx.pbz

Business hours
Mon - Thu 08.00 a.m. - 17.00 p.m
Fri 08.00 a.m. - 16.00 p.m.