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 either of these types of concrete involves the crucial step of subjecting all their constituents (in example cement, water, plasticizer, lightweight aggregates et cetera) to a conventional mixing process. Initially, lightweight aggregates are homogenized while adding mixing water. In the second step, binder components and other admixtures are added. At this stage, care must be taken to ensure low...

Related articles:

Issue 2019-02 Concrete engineering

Sprayable, structurally dense lightweight concrete

Cement-aggregate mixtures have been sprayed for well over 100 years [1]. Developments in process and concrete engineering made since that time enable shotcretes to be processed re-liably today in both...

more
Issue 2017-09 Eirich

Mixing technology for lightweight concrete

The demand for high-quality mixes is increasing. Meeting this demand is often difficult, if not impossible. The reason for this is that mixing processes, as described in the literature, are always...

more
Issue 2014-02 Production and characteristics

Lightweight concrete with added aerogels as a structural material –

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...

more
Issue 2017-02 Highly porous mineral foam

Interesting filler for lightweight concrete

The requirements regarding the energy efficiency of buildings are a well-known and inevitable fact to which the construction industry responds, too. Lightweight concrete blocks are filled with...

more
Issue 2016-05 SUBMITTED BY: MAT Mischanlagentechnik

Innovation: Counterflow intensive mixer

Recent years have seen continuous development of new high-performance concretes with special properties for a great number and variety of applications. The principal distinctions between these and...

more