Issue 02/2018

Content

NEWS | NACHRICHTEN

Aircrete Europe

Beier appointed Managing Director

Aircrete Group announced that it has appointed Ralf Beier as the Managing Director of Aircrete Europe, the Group’s operational business entity for AAC systems and technology. This appointment is in...

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SE INTERMAT/WORLD OF CONCRETE

Intermat and WOC to be held in Paris in April

The two trade shows Intermat and World of Concrete Europe will take place in Paris simultaneously for the second time from April 23 to 28, 2018. The venue will be the Parc des Expositions de Paris...

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Bundesverband Spannbeton-Fertigdecken

New management at the BVSF

Changes have taken place in the Management of the Federal Association for Prestressed Precast Floor Slabs (Bundesverband Spannbeton-Fertigdecken - BVSF). The General Meeting of the Federal Association...

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BFT INTERNATIONAL

Christmas draw: congratulations to the winners!

In our last BFT newsletter in 2017, we had invited you to participate in our Christmas draw. Prizes included copies of the brand-new Beton Bauteile 2018 yearbook as well as day tickets for the Precast...

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PRECAST ELEMENT PRODUCTION | FERTIGTEILHERSTELLUNG

An acropolis in the middle of Berlin

The James Simon Gallery, the sixth building on the Museum Island in Berlin, connects the remaining museums with each other. The precaster Dressler Bau delivered the precast architectural concrete...

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Wilhelm Dyckerhoff Institute

“One step closer to the future”

Chemical engineer Fulvio Canonico has been managing Wilhelm Dyckerhoff Institute for Building Materials Technology since early in 2017. The WDI is responsible for the entire research and development...

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EVENTS | VERANSTALTUNGEN

The Big5

The world of building meets in Dubai

The award of Expo 2020 to Dubai has boosted construction activities in the entire Emirate. The estimated overall value of project activities for developing the Expo site amounts to around USD 4...

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SERVICE | SERVICE

FDB

Darmstadt Precast Days  2018

The Darmstadt Precast Days will take place on four days – and for the eleventh time in succession – on 8 and 9 and on 15 and 16 March 2018. Recognized experts will offer sound, practice-oriented...

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Patents | Patente

Formwork construction system

(10) DE 20 2016 103 642 U1 (22) 07.07.2016(45) 16.11.2017(57) Schalungskonstruktion mit einem durch eine Stahlspundwand (10) begrenzten Schalungs­hohlraum (14), dadurch gekennzeichnet, dass an der...

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Concrete tower

(11) EP 3 249 138 A1(22) 15.01.2016(43) 29.11.2017 Bulletin 2017/48(57) The concrete tower comprises: a shaft (1) and a foundation (2). The shaft (1) is formed by two distinct segments: - an upper...

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Concrete slab system

(11) 2549847 A(22) 24.03.2017(43) 01.11.2017(57) A concrete slab system includes a bed 20 of a first concrete having a top 22 surface and edge 20E surfaces. The bed’s top surface 22 has shrinkage...

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Concrete system for a stable floor

(10) DE 10 2015 105 067 B4 (22) 01.04.2015(43) 06.10.2016 (45) 28.12.2017(57) Stallboden eines Viehstalls, aufwei­send eine Mehrzahl von Liegeflächenplatten (30, 30’), wobei der Stallboden optional...

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Concrete paver

(10) DE 20 2017 005 001 U1 (22) 27.09.2017(45) 23.11.2017(57) Betonpflasterstein als Quaderstein mit gleich geformten, unterhalb der Steinhöhe endenden senk­rechten Zähnen an den Seitenflächen, die...

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Panel for construction purposes

(10) DE 20 2016 008 413 U1 (22) 09.06.2016(45) 21.12.2017(57) Platte (1) aufweisend eine zementge­bundene, faserverstärkte Tragschicht (2), dadurch gekenn­zeichnet, dass sie einseitig mit einer...

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Reinforced concrete component

(10) DE 20 2016 008 426 U1 (22) 11.03.2016(45) 28.12.2017(57)  Stahlbetonbauteil (12’, 12’’, 12’’’) auf­weisend wenigstens einen Verbindungsabschnitt (14, 14’, 14’’) zur Verbindung des...

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EDP | EDV

BIM Training: No BIM without know-how

Building Information Modeling has arrived in the construction industry – but there is a lack of professionals. For this reason, BIM training providers are experiencing a boom. Which criteria and...

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Products | Produkte

Notes | Für Sie notiert

PANEL 1 | PODIUM 1

Durability of concrete

Reliable prediction by cement testing alone?

The European concrete standard EN 206 is not harmonized and only comprises key points with the character of recommendations with respect to durability of concrete. Therefore, the member states apply...

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Carbon-reinforced concrete in construction

Preparation for regulations

Most of the building projects using textile and/or carbon reinforced concrete, which have already been realized, are based on approvals on case-by-case basis. Apart from the approvals on case-by-case...

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An update

BMBF joint research project on R concrete

The BMBF joint research project on R concrete was presented with its objectives, contents, and the first results on the 61st BetonTage congress. On the occasion of the 62nd BetonTage congress 2018,...

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Opportunities and risks of alternative, sustainable cements

What about the cement transition?

For several generations now, Portland cements have constituted the basis for the concrete model of success, a building material which, like no other, characterizes our environment and of which...

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PANEL 2 | PODIUM 2

New construction contracts law

How to deal with it for concrete products?

In addition to the new provisions amending the construction contracts law, the legislator has also created, in the interests of consumer protection, new provisions on a stricter vendor’s and...

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Optical-digital quality control in concrete block production

Robot-controlled exchange of faulty blocks

Concrete blocks are no longer just square, practical, and gray – we encounter them in a wide range of shapes, colors, and structures. In concrete plants they are fully automatically manufactured,...

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Freeze-thaw resistance of concrete products

New research findings

The freeze-thaw resistance of concrete paving blocks must be verified by the slab test (DIN EN 1338). Sometimes clients in Germany demand the CDF method (DIN CEN/TS 12390-9). Independent of the test...

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Expert opinions

An assessment of competence

An innocuous-sounding title for a very serious, often annoying, and not seldom also expensive issue: the opinion of many an expert. Of course, not every expert, getting in contact with our industry,...

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Clean cities by means of photocatalysis

Less nitrogen oxides, more beautiful surfaces

Compliance with the limits set by the EU for nitrogen oxides is still posing a challenge for cities and municipalities. Contrary to measures such as driving bans, which have a negative impact on...

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Continuing education to qualify as specialist engineer / specialist planner / specialist site supervisor for pavement construction (EIPOS)

Personal account of a graduate

As a state-examined engineer for building construction and civil engineering, I have been employed as site manager since February 2007 by the engineering consulting firm TS- Ingenieurgesellschaft, on...

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PANEL 3 | PODIUM 3

An update on European regulations pertaining to structural precast elements

Do we need Mandate M/100?

Standardization orders (also referred to as “mandates”) that the European Commission issues to the European Committee for Standardization (CEN) contain a basic framework and are complemented by...

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Design Atlas for Building Construction (Planungsatlas Hochbau)

Thermally optimized façade design for precast elements

Increasingly demanding energy efficiency specifications for new buildings or extensive refurbishment projects require not only appropriate building services and installations that consume the least...

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Modern concretes for precast bridges

State of the art in Germany and internationally

Generally speaking, the use of precast elements in bridge construction is a tried-and-tested method, which, in Germany, is usually restricted to combining structural precast elements with cast-in-situ...

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Smallhouse IV large-scale demonstrator

Multifunctional precast elements

The amount of energy generated from renewable sources is fluctuating and thus uncontrollable, which is why it must be stored in the building to ensure effective utilization. At the core of such...

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Development of a modular footbridge system with pre-tensioned CFRP reinforcement

Pre-design and experimental investigations

Road and pedestrian bridges are commonly built as cast-in-situ, prestressed reinforced concrete structures, but this method is both expensive and time-consuming. The installed reinforcing and...

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PANEL 4 | PODIUM 4

Lightweight concrete production

Potentials of the suspension mixing technology

In respect of their material characteristics, lightweight concretes with bulk densities smaller than 2,000 kg/m3 can be subdivided into the structurally dense and porous categories. Production of...

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A lightweight concrete roof at Berlin Central Station

Design and construction planning

In 2016, Berlin Central Station was connected to the tramline. The location is characterized by distinctive solitary buildings arranged heterogeneously side by side, various hotel and office buildings...

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Compressive strength of lightweight concrete masonry

Defining fk values in the national annexes to EC6

One of the main objectives in revising DIN 1053-1 was a more differentiated description of the compressive strength of masonry as a function of the different types of blocks used in order to be able...

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Verification of infills made of lightweight concrete masonry

Current research findings and new design model

According to the standards currently in effect, it is not possible to determine the structural capacity of non-reinforced infilling masonry walls made of lightweight concrete masonry taking into...

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Infra-lightweight concrete – Potentials for the precast industry

I.) Concrete properties and production

The idea of expanding the range of lightweight concretes to include lower bulk densities in order to offer interesting thermal solutions has already been successfully implemented in practice by...

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Infra-lightweight concrete – Potentials for the precast industry

II.) Material-appropriate designing and building

Infra-lightweight concrete is of such lightweight and thus thermal insulating, so that this concrete enables the construction of architectural concrete buildings which meet today’s structural physical...

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PANEL 5 | PODIUM 5

Limestone-based green cements

Predicting concrete shrink-behavior

The cement industry generates about 6% of global CO2 emissions that are primarily caused by the production of Portland cement clinker. A reduction in the clinker content of cement and concrete and its...

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Part 1: Concrete technology and execution

The new DAfStb Guideline on UHPC

On a worldwide scale, ultra-high-performance concrete (UHPC) has been the single most important development of the past few decades in the field of concrete technology and application. This type of...

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Part 2: Design and construction

The new DAfStb Guideline on UHPC

The design and construction part of the DAfStb Guideline on UHPC replicates the structure of EN 1992-1-1. The verification methods are based on the design principles for reinforced and prestressed...

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Custom true-to-scale structural component tests

Potentials for the precast industry

High-performance materials need to be used to an increasing extent if the construction industry intends to truly respond to global issues such as resource conservation, sustainability, primary energy...

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PLENUM 2 | PLENUM 2

Building Information Modeling

An opportunity for the construction industry?!

The information and communication technology has been developing at a rapid pace over the last decades, leading to the penetration of digitalization into nearly all aspects of our living and working...

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PANEL 6 | PODIUM 6

On the definition of their correct roughness

Interior side of element walls

An element wall should give a monolithic impression when in use. There is to be a firm bond between the shells and the filling concrete. The bond achieved has an influence mainly on: the load-bearing...

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Examples of specific requirements on concrete engineering

Lining segments for infrastructure projects

As a result of the rapid population growth, the related increase in urbanization and therefore an ever more clearly evident shortage of land, the construction of tunnels in concrete design will...

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Joining precast elements and semi-precast elements

UHPFRC composite joints

Ultra-high-performance fiber-reinforced concrete (UHPFRC) is a cementitious high-perfor­mance material which, through an optimized grain structure and added steel fibers, achieves a compressive...

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New guideline for testing

Welded lattice girders

The “Guideline on the Certification of Conformity of Welded Lattice Girders as Rigid Reinforcement” (official German title of the December 2017 draft: Richtlinie für die Übereinstimmungsbestätigung...

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PANEL 7 | PODIUM 7

Silhouette International in Linz/Ah

Precast façade in white concrete

The objectives of the architect were to establish, first, a reference between the outer appearance of the plant building and the products – spectacles – to be manufactured inside upon completion, as...

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White precast elements for Leipzig University

Parapet elements with light and airy lattice structure

Originally inaugurated as a Catholic monastery church in 1240, the ‘Paulinerkirche’ was later transferred into the ownership of Leipzig University in the course of secularization. Since then, it had...

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PANEL 8 | PODIUM 8

Challenges in insolvency proceedings

Preventive measures and legally certain action

On February 16, 2017, the Bundestag (German Federal Parliament) passed the “Gesetz zur Verbesserung der Rechtssicherheit bei Anfechtungen nach der Insolvenzordnung und nach dem Anfechtungsgesetz” (Act...

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Field reports

Field reports

Man as the weak point and the vulnerability of SMEs At IT trade fairs, high-priced systems are advertised as the ultimate barrier against all kinds of known and unknown dangers from the internet. But...

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Legal framework for corporate data security

Cyber Crime

Digitization is the big challenge to the economy in the 21st century – not just for technology groups but for every company; for every company uses digital technology. Recognizing this is the first...

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Support from colleagues or anti-trust trap?

Support from colleagues or anti-trust trap?

Supply associations are important for the concrete and prefabricated concrete industry, whenever companies participate in a bidding or realize projects with a considerable volume. From 2015 the German...

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PANEL 10 | PODIUM 10

Design principles at the core of the document – what to comply with?

The DAfStb Guideline on Waterproof Concrete Basements

The relevant subcommittee of the German Committee for Structural Concrete has drafted an update on the Guideline on Waterproof Concrete Basements [2] fourteen years after publication of its original,...

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Steel-fiber-reinforced concrete components

A universal computation and design tool

A comprehensive computation and design tool for rectangular cross-sections made from steel-fiber-reinforced concrete and concrete reinforced with both steel rebar and fibers was developed using...

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Punching shear behavior of footings with a varying amount of punching shear reinforcement

Experimental investigations

The punching shear design provisions for footings and ground slabs were revised with the introduction of Eurocode 2 in Germany. In contrast to previous German codes, the location of the control...

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Design of concrete and reinforced concrete components in ­accordance with EC2

New DAfStb Issues 630 and 631 supersede Issues 220 and 240

Issues (“Hefte”) 220 and 240 published by the German Committee for Structural Concrete (DAfStb) have been widely used in engineering practice ever since their first editions appeared. These guidelines...

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Implementation examples of WP constructions

Critical notes on various construction methods

Implementation of Design Principles a) and c) of the new WP Guideline on Water-Impermeable Concrete Structures [1] calls for rethinking the structural design involved, extending from pure dimensioning...

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PANEL 11 | PODIUM 11

Incineration ash

Utilization in concrete construction elements

In Germany, waste incineration plants yearly produce around 6 million tons of slag and grate ash. In the past, carefully monitored incineration ashes with constant product properties were often...

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Wood-textile concrete composite systems

Large-dimensioned and precast façade elements

In recent years, so-called textile concretes have been used as façade elements. Stitched textile fabrics – for the most part manufactured from alkali-resistant glass fibers, carbon fibers, or amid...

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Digital concrete construction

News about 3D printing with concrete

The development of digital concrete printing processes for manufacture of structural concrete components directly at the construction site or in the precast plant is a critical step on the way to...

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“WooCon” research project

Sawdust instead of gravel and sand

The “WooCon” research project – financed by the Swiss National Science Foundation as part of the National Research Program 66 “Resource Wood” and by the University of Applied Sciences and Arts of...

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Fiber-reinforced concrete in precast construction

Innovations and applications

Regarding engineering aspects, the use of fibre reinforced concretes in precast construction offers enormous potential because it saves time-consuming and wage-intensive reinforcement works. The...

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Concrete instead of steel

UHPC in machine construction

Machine beds and frames are primarily manufactured from welded steel components, gray cast iron, or natural hard stone. Since the 1980s, epoxy-resin-bound polymer concrete and mineral casting...

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PANEL 12 | PODIUM 12

Situation analysis and specific measures

Greater investments in our drainage systems

Dealing with and maintaining the infrastructure in a sustainable manner eventually is an intergenerational task, which the public sector only inadequately fulfils owing to several reasons – as...

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The new Worksheet DWA-A 139

Construction and testing of drains and sewers

The revised edition of Worksheet DWA-A 139 includes the supplementary notes and further explanations on DIN EN 1610 “Construction and testing of drains and sewers” (Einbau und Prüfung von...

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Practical examples from planning and construction

Rehabilitation of large diameters in ongoing operation

Maintenance of sewer systems comprising large cross-sections (“large diameters”) is particularly challenging for the operator owing to the high potential of hazard in case of structural failure and...

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Changes for pipes and manholes

Implications of the ECJ judgment

The judgment that the European Court of Justice (ECJ) issued against Germany on 16 October 2014 will change German construction legislation. To implement the ECJ judgment, the Building Codes of the...

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FOREWORD | VORWORTE

Dear European colleagues,

On behalf of BIBM, the European Federation of the Precast Concrete Industry, I welcome all of you to the 62nd BetonTage Congress.Just like this long-standing, unique conference, our industry has...

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Distinguished guests at the 62nd BetonTage,

The present program for the 62nd BetonTage impressively shows that the application possibilities for concrete as a construction material are virtually unlimited, especially in industrial...

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Dear ladies and gentlemen, dear readers:

BetonTage and fib – facing the future together!

„Prefabrication – the future of building“ is the trend-setting theme under which the organizers of the BetonTage congress invite to the meanwhile 62nd industry gathering held every year in Neu-Ulm,...

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Patience is concentrated strength

Bruce Lee, known to many only as the Sino-American martial artist and actor in films such as “Fist of Fury”, also concerned himself with philosophical questions which is, in turn, less well known. The...

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PANEL 13 | PODIUM 13

DWA Worksheet 221 or industry guideline on small wastewater treatment plants

Quo vadis?

In October 2014, the European Court of Justice (ECJ) found “that the Federal Republic of Germany violated the obligations arising from Directive 89/106/EEC” because it created additional requirements...

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Decentralized rainwater treatment plants

Technologies and testing procedures

Progressive soil sealing combined with an increasing occurrence of heavy rainfall events represents an enormous challenge for urban drainage. In addition, a significant proportion of the pollution of...

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Wastewater treatment

New process without the use of electric power

While the highly industrialized countries, and especially Germany, spend sleepless nights because nanoparticles and pharmaceutical residues are detectable in treated wastewater, other places in the...

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