Content

NEWS | NACHRICHTEN

REMMERS

Expansion strategy continued in Austria

Following the recent foundation of subsidiary companies in Switzerland and Slovakia, Remmers Gruppe AG is strengthening the presence in Austria now: Effective from November 01, 2018, the European...

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DICAD

New version 2019: Strakon builds bridges

In a figurative sense, Strakon already built bridges in its earlier versions – i.e., between 2D, 3D and BIM. Thanks to the smooth transitions from object-oriented design to 3D construction and the BIM...

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BT INNOVATION

“Clear structure, compelling messages”

At the beginning of 2019, BT innovation has launched its new corporate design, including a new company logo and color range, a redesigned website, and all its marketing collateral. BFT editorial staff...

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LIAPOR

Building faster with Liapor elements

Building in high quality, sustainable and particularly fast – this demand can be perfectly realized by the prefabricated elements made of Liapor lightweight concrete. Most recent example: a new...

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PRECAST ELEMENT PRODUCTION | FERTIGTEILHERSTELLUNG

SYSTEMS ENGINEERING | ANLAGENTECHNIK

PRETEC DENMARK/EUROBEND

New welding machine for Pretec Denmark

In addition to the offered broad range of welding lines for the production of standard and specialized construction mesh, engineering, precast or architectural mesh, Eurobend GmbH offers a full range...

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EVENTS | VERANSTALTUNGEN

SERVICE | SERVICE

Patents | Patente

Connector for precast concrete structures

(10) US 2018/0347179 Al (22) 31.05.2018(43) 06.12.2018(57) An apparatus, system, and method is provided to connect precast concrete panels to a structural member. The connec­tor can have a receiving...

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Composite panel with lightweight concrete

(10) DE 20 2018 105 725 U1(22) 05.10.2018(45) 20.12.2018(57) Verbundplatte (1) zur Verlegung als Bodenbelag oder Pflaster in ungebundener Bauweise, ins­besondere im Freien, wobei die Verbundplatte (1)...

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Transport anchor

(10) DE 10 2017 210 761 Al(22) 27.06.2017(43) 27.12.2018(57) Die Erfindung betrifft ein Trans­portankersystem zum Transportieren eines Objekts 1, ins­besondere Betonfertigteil, umfassend ein...

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FOREWORD | VORWORTE

Innovation in Concrete

It is a great pleasure for the fib to participate in this very prestigious conference, the BetonTage 2019. The theme of the conference – Innovation in Concrete – is particularly important in these...

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Dear European colleagues,

On behalf of BIBM, the Federation of the European Precast Concrete Industry, I welcome all of you to the 63rd BetonTage congress. The role of a European federation such as BIBM is to forecast the...

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Distinguished guests,

This year’s 63rd BetonTage edition will again be showcasing a wealth of information and many innovations from the concrete and precast world. Nowadays, virtually everyone seems to be talking about...

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PANEL 1 | PODIUM 1

Main constituent of cement

Recycled crushed sand

At present, DIN EN 197-1 does not define recycled fine aggregates (crushed sands) as main constituent of cement. Cements with ground crushed sand as main constituent are subject to an approval. Apart...

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Cements of the future

Which materials can we use?

Resource efficiency and climate protection will continue to challenge the method of concrete construction. However, there is no silver bullet in sight. New approaches such as the carbon dioxide...

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Innovative precast elements made from secondary raw materials

Report on the SeRaMCo EU research project

The Interreg NWE SeRaMCo (Secondary Raw Materials for Concrete Precast Products) EU research project aims to increase practical use of recycled constituents in precast construction, in keeping with...

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Concrete without cement

Geopolymer Concrete for the Precast Construction

The use of alkali activated binder systems becomes increasingly important in concrete technology. Besides the ecological aspects, especially the reduction of the CO2 emissions when producing the...

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Resource efficiency

Green concretes with limestone powder

On a global scale, concrete and cement production accounts for more than 6 % of anthropogenic CO2 emissions. Substitution of the cement clinker (K) contained in the cement or concrete by appropriate...

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PANEL 2 | PODIUM 2

Joint-filling materials

Soiling of concrete block pavements

In the past, conventional materials normally used for filling the joints between block pavers and slabs were repeatedly found to cause discolorations of concrete paving products. Similar soiling can...

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Paved areas suitable for greening

The new FLL guidelines

In July 2018, the Forschungsgesellschaft Landschaftsentwicklung Landschaftsbau e. V. (Research Society for Landscape Development and Landscape Construction; FLL) published a fundamentally revised...

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Current situation regarding rulesets ZTV Pflaster, EN 1338 ff.

Code of Practice on “Low-Noise Paving”

A number of rulesets for road construction are currently being revised or pending publication. The revised edition of ZTV Pflaster-StB (Zusätzliche Technische Vertragsbedingungen zur Herstellung von...

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Resource scarcity

A homemade problem

In terms of geology there exists in Germany no shortage of sand, gravel and natural stone deposits. Quartz and building sands are available in Germany in sufficient quantities to cover domestic...

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Landscape gardeners and the use of concrete products

Preventing errors right from the start

Customer requirements are constantly increasing, and concrete precast manufacturers need to meet these demands by developing new products. Concrete products are becoming ever more refined, having...

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PANEL 3 | PODIUM 3

Connections for precast elements

The FDB brochure 2.0

In precasting, the individual components are manufactured prior to their installation away from the site and are subsequently assembled on location for the actual loadbearing structure. The...

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What you should know about it

EPD, CSC & Co.

The topics related to sustainable building are highly diverse. Particularly within the context of the ecological quality of a structure, the various levels of perspectives concerning building...

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PANEL 4 | PODIUM 4

Fastening systems in lightweight concrete

Non-regulated applications outside approvals

The conditions of use of fastening systems are generally regulated in approvals – so-called European Technical Assessments (ETA). In addition to the description of the construction product, these...

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Recycling of lightweight concrete

Pilot plant paves the way to the future

Implementation of a zero-waste economy requires feeding back of secondary raw materials into subsequent production runs, which is one of the major challenges all raw material processing industries are...

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From Construction Products Regulation to Model Administrative Provision on Technical Building Rules

Background and new provisions for masonry construction

Judgment C-100/13 delivered by the European Court of Justice on October 16, 2014 required the German building code legislation to be completely redesigned in order to conform to the EU Construction...

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PANEL 5 | PODIUM 5

Knowledge transfer in the construction industry

New products for urban structures

Seven partners from research, industry and standardization have joined forces to accelerate the transfer of innovative materials from the laboratory to construction practice. The WiTraBau project...

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Concrete printing

Architectural design freedom lies in the detail

Compared to other methods, additive manufacturing processes are associated with a large number of benefits that become particularly apparent when producing free-form elements. 3D powder printing...

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3D printing of reinforced concrete components

Shotcrete 3D Printing (SC3DP)

Additive manufacturing (AM) is a technology that opens up the potential to completely rethink the process of producing concrete components. In contrast, the conventional method involves the pouring of...

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Requirements for raw materials and materials testing

3D concrete printing

There is a rapidly growing interest in digital construction with concrete. The same holds true for the associated expectations in respect to this promising technology [1, 2]. However, a number of...

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PLENUM 2 | PLENUM 2

Innovative modular construction with smart concrete

Solid.box - innovative concrete-made housing modules

In Germany, much too little is being constructed. According to calculations by the Cologne Institute for Economic Research (IW), at least 310,000 dwelling units annually would have to be constructed...

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PANEL 6 | PODIUM 6

Concrete-to-concrete interfacial joints in structural components

Subsequent strengthening by concrete overlays

According to DIN EN 1992-2/NA, the adhesion component of theshear resistance in a concrete-concreteinterface has not to be applied under fatigue or dynamic loading (c = 0). In structures subject to...

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New findings on the fatigue behavior of precast elements

Behavior of prestressed concrete girders

For prestressed precast concrete elements used in structures with predominantly cyclic loading, for example craneway girders in industrial structures or precast girders in bridge constructions, design...

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A position paper

2017 WU Code of Practice of DAfStb

The content of the lecture is the position paper of the German Association for Concrete Components with Lattice Girders (BmG), the Bavaria Double Wall Quality Association and the Syspro Group...

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European product standard or German approval?

Erection state of lattice-girder floors

Lattice girders in floor plates for floor systems in the erection state of prefabricated reinforced-concrete slabs ensure their flexural strength and shear resistance as well as their bending...

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Precast element walls with integrated insulation material

New assessment of horizontal fresh concrete pressure

In reinforced-concrete construction, semi-precast elements particularly ensure high cost efficiency, because they enable a faster construction progress while maintaining strict quality requirements....

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PANEL 7 | PODIUM 7

Theresienwiese shopping center in Munich

DUCON as a white concrete façade

DUCON (DUctile CONcrete) combines an ultra-high strength concrete with a three-dimensional micro reinforcement to become an innovative, ductile and load-bearing high-performance concrete. Therefore,...

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The new DIN 18500: Cast stones

Terminology, requirements, testing, inspection

The last meeting of standard committee NA 005-07-82 AA “Cast stones” took place on 11th October 2018 at ZDB (Central Association of the German Construction Trade) in Berlin. Chairman of the committee...

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Darmstadt

Merck Innovation Center

At the beginning of 2018, the Innovation Center of Merck was completed at the company’s headquarters in Darmstadt. The building serves both as an entrance building to the campus and as an innovative...

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PANEL 8 | PODIUM 8

Scope and consequences for contracting in practice

New construction contract law

The new construction contract law has been valid since January 01, 2018. Introducing the new provisions, the legislator tried to consider the set of problems occurring as a result of the complexity...

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Measures against shortage of skilled workers

Fishing in the company pool

Owing the demographic change as well as the trend towards academization that has been observed for years, there exists in some professions and regions a shortage of personnel on the German job market....

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How can the employer deal with them?

Facebook, WhatsApp & Co. at the workplace

We are already familiar with this subject: there, the Facebook profile is renewed and someone is chatting with friends, instead of doing the job for which they are paid. In this regard, the labor-law...

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The employee on the verge of leaving?

Recommendations for action in practice

Successful companies are absolutely dependent on qualified and motivated employees. In times of skilled labor shortage and frequent headhunting to competing companies, these are not just inexpressive...

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PANEL 10 | PODIUM 10

New experimental results on punching shear behavior of flat slabs with varying amount of punching shear reinforcement

Reduction of punching shear reinforcement

With introduction of Eurocode 2 in Germany, the punching shear design provisions for flat slabs were revised. In consequence of limited anchorage conditions of punching shear reinforcement elements in...

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New Guideline on Water-Impermeable Concrete Structures, 2017 Edition

Frequently asked questions and discussion

The updated December 2017 edition of the Guideline on Water-Impermeable Structures Made of Concrete (Wasserundurchlässige Bauwerke aus Beton) published by the DAfStb (Deutscher Ausschuss für...

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The new DBV Code of Practice on “Multi-Story and Underground Car Parks”, 2018 Edition

Initial experiences and design notes

For the design and realization of parking structures, the German Society for Concrete and Construction Technology (Deutscher Beton- und Bautechnik-Verein) had issued the Code of Practice on...

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Special aspects of crack width calculation

Recommendations for the building practice

Crack widths have a significant influence on the durability of reinforced concrete members. Therefore, the limitation of crack widths is an indispensable aspect of the design work, and is often...

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PANEL 11 | PODIUM 11

Reinforced-concrete beams in building construction and civil engineering

Ultra-light beams as concrete-steel hybrid

Reinforced-concrete beams are widely used in building construction and civil engineering. They often have full rectangular cross-sections which is advantageous for both the simple production on site...

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Pneumatic formwork construction

Manta event roofing

Concrete as a construction material has an especially high resistance to compression. Concrete shells with a geometry optimized in a way such that primarily compressive forces arise are accordingly...

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Concrete sandwich panel

Glass-rigid foam facing without connectors

The layout of conventional precast concrete sandwich panels comprises an at least 7 cm thick reinforced concrete facing, an insulation layer, and a reinforced concrete bearing layer. Anchors made of...

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PANEL 12 | PODIUM 12

Special corrosion protection measures

Emscher wastewater sewer

On 24 September 2018, the Emschergenossenschaft (Emscher Cooperative) commissioned the first section of the Emscher wastewater sewer. With an overall length of 51 km, the Emscher wastewater sewer runs...

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Automation in sewer construction

Implications for pipe installation

Shortage of staff, migrant workers, and cost and deadline pressure are forcing civil engineering companies to rationalize and mechanize their work processes. The product portfolio of equipment used...

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Gravity sewers

Renovation using mineral inliners

In addition to monitoring the condition and function of municipal sewer systems at regular intervals, their renovation is playing an ever more important role and is increasingly becoming a technical,...

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DWA rules and guidelines on the condition assessment in sewers

Coding, measurement and assessment of findings in pipes

The condition assessment and quantification (measurement) of inspection findings in drainage and sewer systems is of critical importance. If and when required, follow-up processes are initiated on the...

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Innovative pipe design

Jacking pipes made of reinforced concrete

In an urban environment – and usually in lower lying areas – mechanical pipe driving in contrast to the open-trench method is a pipe-laying method for sewers that reduces the restrictions for the...

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PANEL 13 | PODIUM 13

Water Reuse from small Wastewater Treatment Plants

Can Germany use the new ISO Standards on Water Reuse?

Water is too precious to waste. Germany learned this in summer 2018.Even in autumn and winter the consequences of the summer drought can be felt and it is increasingly taken into consideration to...

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Constructed wetlands

CE marking requirement and ECJ judgment

To ensure the free movement of goods within the European Economic Area (EEA), manufacturers must declare the conformity of their product with the EU directives and regulations applicable to the...

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Decentralized wastewater disposal

Future-proof wastewater disposal based on BOT models

Public wastewater disposal has so far been equated with centralized disposal schemes. Publicly operated decentralized systems are the exception rather than the rule. Decentralized wastewater treatment...

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A quantum leap for small wastewater treatment plants made of concrete?

EN 12566:2021

In the spring of 2013, manufacturers of small concrete wastewater treatment plants from all parts of Germany have formed a joint working group. Since that time, in addition to flyers, the working...

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Modular wastewater treatment technologies for water reuse

Results of the AWAREGIO project

The pilot plant of the AWAREGIO project has been in operation at the Moers-Gerdt waste-water treatment plant for about one year. The objective of the project is to enable the reuse of water and...

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