To install extensive cementitious, polished concrete floors with only a few joints (terrazzo), a double-layer bonded screed is applied wet-on-wet or after hardening of the bottom layer. In the...
Use of lattice girders in reinforced-concrete floor plates is a widely practiced method of construction for conventional high-rise building structures. An estimated 70 % of all floors in these...
Macroporous lightweight concretes whose thermal insulation effect relies on a certain ratio of air voids in the material are subject to physical limitations that have been virtually exhausted by...
Worldwide, concrete is second only to water in terms of its quantities used: each year, approx. 10 billion tonnes of concrete are required. More than 900 million tonnes of old concrete from...
Introduction
In recent years, numerous European standards have been implemented. In the case of harmonized standards, the corresponding national standards had to be withdrawn following expiration of a...
Introduction
Climate change is ongoing and causes an increase in extreme weather events, such as heat waves and torrential rain. The effect of these extremes on cities is disproportionately severe....
Motivation
New bridge structures must be erected as quickly as possible to maintain the existing traffic network or, in the case of overpass structures, so as not to interfere with the traffic below...
The Energy Saving Ordinance (EnEV) has left its mark also on the construction of floors for high-rise buildings. Control of panel heating and ventilation systems is one of the absolute requirements of...
Application example 1:
Strengthening reinforced-concrete columns
Ducon (ductile concrete) consists of numerous layers of reinforcement in the form of point-welded wire mesh (mesh width approximately...
The public sewer system existing in Germany has an overall length of approx. 550,000 km being worth about € 680 billion. According to the evaluation of a survey carried out by DWA in 2009 [1], the...
