Issue 02/2014

Content

FOREWORD | VORWORTE

Focus on the direct transfer of knowledge

Smart concretes – concretes of the future

Smart concretes – for a brighter future

BetonTage – Smart concretes for everyday practice

PLENUM 2 | PLENUM 2

Fracking, shale gas, peak oil

Is a new crude oil age arriving?

While a dramatic shortage of oil and gas was predicted some years ago, which gave reason for an enormous increase in energy prices; this is out of...

An interdisciplinary students‘ Award

„Concrete Student Trophy“ –

Interdisciplinary competitions are an excellent option for an intensive preoccupation of selected target groups with an assignment, which in this...

Fewer building defects caused by construction chemistry

Sustainable building in the 21^st century –

Technical infrastructure has played a key role in architecture as far back as in ancient times, as is evidenced by impressive examples from the time...

Design instrument of the future

Building Information Modeling (BIM) –

PANEL 1 | PODIUM 1

New additions to concrete

Effective alternatives for precast concretes –

Problem statement Precast concretes are subject to demanding materials-related parameter requirements as well as to commercial and ecological...

Carbon Concrete Composite C³

Transition into a new age?

With the so-called “High-Tech Strategy”, the Federal Government aims at assisting Germany to assume a leading role in resolving global challenges. As...

Origami-based folded structures and prestressed sandwich shell beams

Concrete light –

As a result of their spatial load bearing behaviour, shell structures provide high load-carrying capacity whilst being very slender and lightweight,...

Current labor law

Changing case law pertaining to leave entitlements –

BCT-Technologie als alternatives Binderkonzept

30 % weniger C0₂ –

Ternesite, in cement technology most commonly known as sulfo-spurrite, has so far been assumed to be almost inert with respect to its reactivity in...

Causes and control

Shrinkage and cracking in high-performance concretes –

Introduction The problem of load-independent cracking in concrete members is as old as the construction method itself. Cracking is primarily caused...

Development and testing

Concrete with properties to repair itself –

The development of cementitious materials exhibiting properties to heal or seal, respectively, cracks is an actual topic, while autogenous healing...

PANEL 2 | PODIUM 2

A joint research project at Munich Technical University

Low-noise open-structured concrete block pavement –

Why do black, colored and gray concrete block surfaces appear lighter in the course of time?

Fading concrete block surfaces –

Bonding stability of pigments in hardened cement paste The needle-shaped structures existing in the concrete block are ideal bonding spots for metal...

SLG guideline - Initial practical experience

Implementation of the Construction Products Regulation –

Maintaining production boards, improving work processes

It‘s the concrete release agent that matters –

Long-term test of concrete pavers and joint materials

Infiltration capacity and microclimatic effects –

Day 1: Tuesday, 18^th February 2014 Tag 1: Dienstag, 18. Februar 2014

Road, landscape and garden construction

PANEL 3 | PODIUM 3

The Fliegl Agrartechnik project in Mühldorf

Encompassing all facets of precast construction –

The newly built factory constructed under the direction of Laumer Bautechnik GmbH impressively demonstrates the development of a business active in...

Practical implementation

Environmental Product Declaration for concrete –

Rationale Investors increasingly focus on the verification of the sustainability of buildings. For this purpose, certification systems have been...

Ohlingsmühle office building in Wuppertal

Load-bearing architectural concrete façade –

A new office and commercial building was constructed directly adjacent to the Ohligsmühle suspended railway station in the city center of Wuppertal....

Efficient electric power generation

Hybrid towers for wind power plants in precast construction –

Large wind power towers measuring up to far over 100 m in height are of crucial significance for efficient wind exploitation and electric power...

Examples of large dimensions in precast construction

Higher, heavier, longer –

Precast reinforced-concrete components are especially well-suited for erection of wide-spanning, unsupported structures that lead to flexible uses of...

Enabled an innovative composite reinforced-concrete element

Reinforced-concrete ribs with large openings –

The Energy Saving Ordinance (EnEV) has left its mark also on the construction of floors for high-rise buildings. Control of panel heating and...

Day 1: Tuesday, 18^th February 2014

Structural precast construction 1 –Built examples, technical concepts

PANEL 4 | PODIUM 4

Innovation effects on the contribution rates

The new hazard rate scale of BG RCI –

Prevention program of BG RCI

Minimizing risks, saving costs –

Setting prices in a keen competition

Using creative leeway with legal certainty –

Day 1: Tuesday, 18^th February 2014

Economy and law

How to pass them on to sub-contractors

Handling liquidated damages –

If the principal asserts a claim against the general contractor on the grounds of delayed completion of the construction work due to a culpable...

PANEL 5 | PODIUM 5

Improving concrete durability

Silage silos –

Assessments of the corrosion resistance of building materials are currently focusing on such fields of application that are associated with biogenic...

PANEL 6 | PODIUM 6

Day 2: Mittwoch, 19^th February 2014

Structural precast construction 2 – Innovative technical solutions

Punching shear tests on precast concrete slabs lead to European Technical Approval (ETA)

With projecting loops to peak load –

Flat slabs made as precast reinforced-concrete slabs with lattice girders and an effective in-situ concrete topping prove to be cost-efficient....

PANEL 7 | PODIUM 7

Recent findings

Sustainability-related quality of lightweight concrete masonry –

Sustainability continues to be a key socio-economic development trend with particular relevance to the construction and property sectors. In the...

Day 2: Mittwoch, 19^th February 2014

Lightweight concrete

PANEL 8 | PODIUM 8

Day 2: Mittwoch, 19^th February 2014

Cast stone

Concept and implementation

Repair of cementitious floorings in the Stachus-Passagen mall in Munich –

The new standard for fa ç ades DIN 18516 and the new ZDB Code of Practice

Opportunities for cast stone –

The revision of the standard relating to cladding for external walls has been concluded in the parts DIN 18516-1 (general principles), DIN 18516-3...

Black architectural concrete

Unwanted interactions between black iron-oxide pigment and PCE-based superplasticizers –

PCE-based superplasticizers are commonly used as concrete additives to manufacture precast elements and ready-mixed concrete. They are mainly used...

PANEL 9 | PODIUM 9

Is maintenance part of the selected concept?

Design brief for parking facilities

As is the case for any building or structure, the design, construction and operation of a parking facility must respond to the specifications and...

Day 3: Donnerstag, 20^th February 2014

Construction in existing buildings

Economic recalculation of existing structures

Modified partial safety factors for reinforced-concrete components

Any evaluation or design of an existing structural framework that is not covered by grandfathering or conservation clauses must usually be performed...

PANEL 10 | PODIUM 10

Calculation examples showing the loss in shear resistance

Design of precast floors with integrated building services –

Background Using reinforced concrete floors as space for building services becomes more and more common in practice. Conduits are built in the...

Day 3: Donnerstag, 20^th February 2014

Concrete in Structural Engineering

Relevant combinations of actions for the design of reinforced-concrete members in conventional buildings

Simplifying design –

Introduction As a result of the introduction of the partial safety concept, the safety factors to be considered in the ultimate limit state design...

New design tools for practice

Punching shear –

While DIN EN 1992-1-1 and the national annex of Germany treat punching shear design for in-situ concrete slabs and centrically loaded footings in...

Checklist for effective design by classification

Waterproof concrete basements –

What does a waterproof concrete structure achieve? Building underground is always a big challenge to both designers and construction contractors. For...

Design for biaxial loading or circular sections

Shear design of reinforced-concrete components –

Both on a national and international scale, the shear design of reinforced-concrete components with shear reinforcement currently relies on planar...

PANEL 11 | PODIUM 11

Selection of pipe and manhole materials for sewer systems

Possible applications of concrete in wastewater treatment plants

Laying near or below railway lines

Verification of reinforced-concrete drains –

Introduction This paper sets out to clarify applicable traffic load parameters because the introduction of new standards and guidelines has resulted...

Variable modular design, Haba-Beton system

Reinforced-concrete drinking water reservoirs –

Concrete has long been used for drinking water applications: the wealth of experience gained in the last few decades shows that the alkaline...

Self-cleaning by soft liners

Applied bionics –

The inside surfaces of pipes have a major influence on the flow pattern in pipelines, which is why they should be as smooth as possible to keep...

Current state in Germany and in Europe

Standardization for pipes and manholes made of concrete and reinforced concrete –

Day 3: Donnerstag, 20^th February 2014

Pipeline construction and drainage technology

Experience gained in automated production and on-site installation

Perfect Pipe concrete/plastic composite pipes –

Sewerage systems made of UHPC

For extreme conditions of use in practice –

The development of high-strength and ultra-high performance concretes (UHPC) has been discussed among experts and promoted for several years now. The short term UHPC refers to concrete grades with...

PANEL 12 | PODIUM 12

The work for the European Standard for small wastewater treatment plants EN 12566

A never ending but always actual story –

German small wastewater treatment plants

Prospects in Europe from a supplier‘s point of view –

Current safety-specific aspects

Construction and operation of small wastewater treatment plants

Preventing during installation, operation and maintenance

Rectification of disruptions of operations in small wastewater treatment plants –

Consequences of the Production Products Regulation

Water-endangering substances and small wastewater treatment plants –

Day 3: Donnerstag, 20th February 2014

Small wastewater treatment systems

NEWS | NACHRICHTEN

Besser/Automacad

Marketing agreement established

Kevin Curtis, Besser Company President and CEO , and Louis Hébert, President/Owner of Automacad Inc. announced that the two companies have...

Philipp Gruppe

Optimizing Sandwich façades in terms of building physics

Building with sandwich elements means an integrated wall construction that combines all usage-relevant aspects regarding statics, functions...

MC-Bauchemie

Zur Mühlen strengthens management board

Dr. Ekkehard zur Mühlen has been appointed as General Manager of MC-Bauchemie as of January 1, 2014. He will be responsible for the commercial area...

Faymonville

Through the desert sand of the Middle East

For the Faymonville Group , the Middle East has been a white spot on the map for a long time, mainly because the Group had focused on building up...

Day 1: Tuesday, 18^th February 2014 Tag 1: Dienstag, 18. Februar 2014

Application-oriented research for concrete

PRECAST ELEMENT PRODUCTION | FERTIGTEILHERSTELLUNG

Flexible batch sizes, energy-saving drives, less soiling. Part II.

In 2013 leading concrete mixer manufacturers have presented new developments. Part II of the article takes a closer look at the systems of Skako and...